explain xkcd - User contributions [en]

Talk:3207: Bad Map Projection: Zero Declination

2026-02-16T11:47:35Z

NeatNit:

First! Can't believe I'm north! [[User:King Pando|King Pando]] ([[User talk:King Pando|talk]]) 03:34, 14 February 2026 (UTC)
:What do you mean that you're north? [[User:This isn't a good name|This isn't a good name]] ([[User talk:This isn't a good name|talk]]) 03:42, 14 February 2026 (UTC)
:You’re north, I’m fourth :) [[User:Logalex8369|Logalex8369]] ([[User talk:Logalex8369|talk]]) 04:53, 14 February 2026 (UTC)
:: Hi fourth! i'm John [[Special:Contributions/45.178.1.151|45.178.1.151]] 05:31, 14 February 2026 (UTC)
:::Hi John, I'm Dad. --'''''[[User:DollarStoreBa'al|DollarStoreBa'al]][[User Talk:DollarStoreBa'al|Converse]] (BLM) 11:32, 14 February 2026 (UTC)
::::Hi Dad, I’m hungry. [[User:Logalex8369|Logalex8369]] ([[User talk:Logalex8369|talk]]) 18:07, 14 February 2026 (UTC)
:::::Hi Hungry, I'm Sister! [[User:RadiantRainwing|K9Dragon23, or RainWingSquares (talk)]] ([[User talk:RadiantRainwing|talk]]) 22:19, 14 February 2026 (UTC)
I can't figure out what the red arrows are. My best guess is that they indicate the direction that the map was distorted in that area. It would be good if somebody would explain. [[User:Jordan Brown|Jordan Brown]] ([[User talk:Jordan Brown|talk]]) 04:07, 14 February 2026 (UTC)
:I think you are right. here's a rough ([https://imgur.com/a/ESLZmYQ map comparison]) [[User:Sameldacamel34|Sameldacamel34]] ([[User talk:Sameldacamel34|talk]]) 05:41, 14 February 2026 (UTC)
: I thought it might be showing where things are drifting on the map with the current drift of the north pole. [[Special:Contributions/2A02:3103:4C:2400:E259:E2C3:5BDD:1111|2A02:3103:4C:2400:E259:E2C3:5BDD:1111]] 10:16, 14 February 2026 (UTC)

Wouldn't such a map actually be quite useful to anyone using only a compass to navigate?
[[Special:Contributions/2A06:C701:46AF:2C00:7577:585:1183:EFBD|2A06:C701:46AF:2C00:7577:585:1183:EFBD]] 07:37, 14 February 2026 (UTC)

I'm confused by the cylindrical projection used for this. I would have expected him to use the geomagnetic dipole for the projection axis, but this would put Ellesmere Island at the top of the map, which is clearly incorrect. Instead he seems to have used the geometric axis for the projection (or maybe the axis between magnetic dip poles, which would be similar in 2025?). This joke would have been better 20 years ago when the dip pole was solidly in Canada. [[User:Quantum7|Quantum7]] ([[User talk:Quantum7|talk]]) 08:35, 14 February 2026 (UTC)

I've honestly seen worse "earnest" attempts at map projections. I might use this in the future just to see if anyone even notices.
[[Special:Contributions/2A00:FBC:F004:3364:B820:80FF:FEA3:938D|2A00:FBC:F004:3364:B820:80FF:FEA3:938D]]

I see the zero line goes more or less through the Rift Valley in East Africa. If the same thing happened a couple of million years ago, it's quite likely every individual in the genus Homo once lived within a couple of degrees of declination.[[Special:Contributions/2A03:E600:100:0:0:0:0:10|2A03:E600:100:0:0:0:0:10]] 14:53, 14 February 2026 (UTC)

I made a [https://awhogue.github.io/zero-declination/output/ map] for the title text. [https://github.com/awhogue/zero-declination Source code]. The answer is 2000. Not sure what the etiquette is for adding it to the explanation. [[User:Ahogue|Ahogue]] ([[User talk:Ahogue|talk]]) 21:08, 14 February 2026 (UTC)
: This is great. I am not sure about the etiquette either, but please go forward and add :-) --[[Special:Contributions/176.199.210.83|176.199.210.83]] 09:49, 16 February 2026 (UTC)

I would really love to see an animation that morphs back and forth between Mercator and this comic. I say Mercator because I suspect it's what the comic map is based on, the goal is to use whichever well-known projection is closest to the xkcd map. If I had any know-how in this field I might try to make that animation myself, but I'd have a really insane learning curve to do it and it's not worth it. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 11:47, 16 February 2026 (UTC)

Talk:3149: Measure Twice, Cut Once

2025-10-14T17:38:34Z

NeatNit: sawing = one cut

Measure once, shame on you. Cut twice, shame on me!
[[User:StapleFreeBatteries|StapleFreeBatteries]] ([[User talk:StapleFreeBatteries|talk]]) 00:57, 2 October 2025 (UTC)
:You know, that's not a bad proverb! [[User:RadiantRainwing|RadiantRainwing]] ([[User talk:RadiantRainwing|talk]]) 00:58, 2 October 2025 (UTC)
:: I will cut you! Shame on me. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:49, 2 October 2025 (UTC)

This is my first XKCD explained! [[Special:Contributions/108.254.160.57|108.254.160.57]] 00:59, 2 October 2025 (UTC)
:Hip hip hooray for you! You did a great job. [[User:RadiantRainwing|RadiantRainwing]] ([[User talk:RadiantRainwing|talk]]) 01:02, 2 October 2025 (UTC)
: OK - but how many times did you check it before saving? [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:49, 2 October 2025 (UTC)

A fundamental problem with this comic is that a "good carpenter" really means "an efficient carpenter" (true of any craftsman, really). Economy of motion, skilled enough to know when to be really precise and to know when precision doesn't matter and is a waste of time. The efficient carpenter doesn't need to measure twice, he or she gets it right on the first try. Or, consistent with the above, knows their capabilities well enough so they can only measure twice when it's truly necessary. And, of course, some of the best efficiencies come from not "measuring" at all — using an end stop or a jig so the cut is easy and repeatable without measurement. Drawing a line (or cutting without a line) against the actual reference point rather than against an intermediate measurement tool (some might call this "scribing," but that suggests a level of precision that isn't what I mean). Effectively, "measure zero times, cut once." And in the opposite, sometimes the most efficient approach is not to measure at all (whether numerically or against a reference object), but to make a rough cut and then a finish cut — effectively, "measure zero times, cut twice." Also possible is if you are gang cutting a stack of N boards, you measure 0 times or once and then make 1 cut, so on a per-board basis it's measure once, cut 1/N. I don't know that all of these things are obvious, per se, but I can't help feel surprised that they don't seem to have been considered. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 06:38, 2 October 2025 (UTC)
: That seems to be more of an issue with the proverb, rather than the comic. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:49, 2 October 2025 (UTC)
:Are you saying my wall with studs just butt ended atop one another isn't good enough? Oh, fine then, I'll go add some bracing and maybe nails. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 11:07, 2 October 2025 (UTC)
::PLEASE STOP, YOU'RE KILLING ME!!!! --'''''[[User:DollarStoreBa'al|DollarStoreBa'al]][[User_talk:DollarStoreBa'al|converse]] 13:08, 2 October 2025 (UTC)
: I do not concur. (At least not fully...) When cutting timber, there are usually two dimensions to measure, and to make the perfect cut you must somehow have measured those to dimensions. A surgeon, on the other hand, must also use the third dimension, knowing how deep into the body they cut.
: Then, obviously, there are situations that differ. Say you want to half something, cutting along the diagonal. Or if you amputate a leg. But ''usually''! :) [[User:Fomalhaut|Fomalhaut]] ([[User talk:Fomalhaut|talk]]) 11:37, 3 October 2025 (UTC)

Somewhat disappointed there's no joke about quantum mechanics, even in the title text. I guess figuring out how to fit the uncertainty principle here is left as exercise to the reader? [[Special:Contributions/164.90.218.225|164.90.218.225]] 10:44, 2 October 2025 (UTC)

The title text seems to reference the Taoist concept of the uncarved block - https://en.wikipedia.org/wiki/Pu_(Taoism) {{unsigned ip|70.124.160.162|13:18, 2 October 2025}}

Possible reference to the real-life use of the reverse proverb (measure once cut twice) which is used by many makers. I am familiar with the concept from Adam Savage, but I don’t know if he’s the originator. The idea is that measurement is actually too imprecise of a tool and should only be used as an approximation. The final size of a piece will be based on something like a pressure fit. {{unsigned ip|98.36.13.95|14:24, 2 October 2025}}

About the title text, would the carpenter have to look or otherwise measure the wood to assume it's fine? Measure once, cut 0 times. {{unsigned|L0L0Z1993|15:19, 2 October 2025}}

[https://xkcd.com/467/ two measures one cut] [[Special:Contributions/2A0E:1D47:9098:3800:1126:180F:44A0:E826|2A0E:1D47:9098:3800:1126:180F:44A0:E826]] 18:07, 2 October 2025 (UTC)

Isn't this the 20th anniversary of XKCD? Strange that Randall wouldn't make a special comic! [[Special:Contributions/92.92.106.219|92.92.106.219]] 18:27, 2 October 2025 (UTC)
:Depends upon [[:Category:First day on xkcd.com|what you count the start as]].
:Also, is 20 years special enough to mark..? Maybe 0x20 years! Or 0x2A... [[Special:Contributions/82.132.215.216|82.132.215.216]] 19:26, 2 October 2025 (UTC)

My favorite option: "Measure never, cut forever!" Heard Bec Hill say this on the podcast A Problem Squared (don't ask me which episode). Couldn't find much about it online so for all I know she came up with it. It's catchy! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 20:06, 2 October 2025 (UTC)

What about other professions or trades? Is it the number of cuts or number of things cut? Is sawing a series of cuts or just one cut?
* Barber: if comparing hair length counts as measuring, about 1:1 to 1:3 measure:cut ratio, since they sometimes snip-snip-snip a line of hair they're holding between two fingers. If measuring excludes estimating, then they're way to the right of serial killers. Do clippers count as cutting?
* Gardener: probably about the same as barbers; more actual measurement likely.
* Film director: Mostly 'cut', I think.
[[User:TimBav|TimBav]] ([[User talk:TimBav|talk]]) 13:18, 3 October 2025 (UTC)
: Barbers [https://www.youtube.com/watch?v=T5yEz8g12fg basically ''are'' serial killers]... (Or, as it turns out, lumberjacks, who cut cut cut.) [[Special:Contributions/81.179.195.93|81.179.195.93]] 18:38, 3 October 2025 (UTC)

: Sawing has to count as just one cut, otherwise the phrase doesn't make sense for carpenters where it originated. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 17:38, 14 October 2025 (UTC)

Here's [http://news.bbc.co.uk/1/hi/world/americas/631568.stm an exception to the 'Surgeon' category]. And [https://www.bbc.co.uk/news/uk-england-birmingham-59954321 another similar one], though not with a physical cutting device. [[Special:Contributions/81.179.195.93|81.179.195.93]] 18:19, 4 October 2025 (UTC)

Laproscopic surgery requires many cuts, and I'm not sure, but I think many surgeries require an initial cut to get to the problem and other cuts to fix the problem. Sometimes there are multiple problems requiring multiple cuts (such as in a shooting where the holes need operation. I suppose that could be called multiple surgeries.... But serial killing could be multiple tasks as well. {{unsigned|208.38.240.15|14:59, 6 October 2025}}

Talk:3151: Window Screen

2025-10-08T12:11:07Z

NeatNit:

The 'standard' and '2x' sized images had unexpected sizes, so an imagesize parameter has been added to render the image consistently with other comics on this website. See the web [https://web.archive.org/web/*/window_screen.png archive] for more details. --[[User:TheusafBOT|TheusafBOT]] ([[User talk:TheusafBOT|talk]]) 03:15, 7 October 2025 (UTC)
:Oh cool the bot can comment too [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 04:06, 7 October 2025 (UTC)
Is the comic not fitting into the section right on the original xkcd website? Is this some kind of meta joke? [[Special:Contributions/138.67.132.61|138.67.132.61]] 04:10, 7 October 2025 (UTC)
: Since this has changed during the day. I think it is intentional[[Special:Contributions/62.220.2.194|62.220.2.194]] 15:14, 7 October 2025 (UTC)
:This is Randall's mistake. Since comic [[1084: Server Problem#Trivia|1084]] from 2012, comics usually have two versions: normal and double resolution (2x). If you read on a high-DPI screen (like a phone) or zoom in, you'll see a high-resolution version of the comic, but if you read on a desktop or laptop without zooming in, you'll see the normal resolution. In this case, Randall accidentally uploaded the 2x version into ''both'' comics, making the normal one twice as big as it should be. If you zoom in just a tiny bit, it'll look normal again. <del>I'll add this in a Trivia section</del> <ins>Someone already did</ins>. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:35, 7 October 2025 (UTC)
:I suspect Randall was inspired by the U.S. President's outsized ego insisting he deserves the Nobel Prize for Peace when he hasn't actually solved any international problems at all, and in the view of many has made things much worse.[[Special:Contributions/68.116.0.20|68.116.0.20]] 05:33, 7 October 2025 (UTC)
::...and in ''objective reality'' has made things much worse. --[[Special:Contributions/45.143.82.106|45.143.82.106]] 06:52, 7 October 2025 (UTC)
:::It's such a shame that this is true. Well, obviously, but in frivolous terms too: it would be nice to have this just as a representation of how it feels to get a tricky task right, without referencing the tangerine toddler's nonsense. I think most people know that feeling that they've maxed out their efforts and achieved something brilliant (measured in terms of the how well or how badly the project should have been expected to go). Human effort is human effort, and so it feels like any successful overcoming of a problem is legitimately comparable with any other, if measured from the perspective of the one who performs the task. I love the way this handles that feeling. It was very difficult; I did it successfully; that was an impressive achievement. "It" could be stopping a war or making a window screen. [[User:Yorkshire Pudding|Yorkshire Pudding]] ([[User talk:Yorkshire Pudding|talk]]) 10:38, 7 October 2025 (UTC)
::::Thanks, you've made the world a worse place by dragging the dumpster fire of partisan politics into a comic that originally had absolutely NOTHING to do with it. Please forever avoid doing this in the future. [[User:MeZimm|MeZimm]] ([[User talk:MeZimm|talk]]) 19:40, 7 October 2025 (UTC)

I suspect all the math could have been avoided if the screen were just carefully laid out on top of the window and cut to a matching shape. Why trig when you can trace? --[[Special:Contributions/45.143.82.106|45.143.82.106]] 06:53, 7 October 2025 (UTC)

It's easy when building a flat screen to accidentally get the tension wrong on one side and *generate* non-coplanarity--[[Special:Contributions/174.127.176.33|174.127.176.33]] 08:24, 7 October 2025 (UTC)
: Yeah, I agree with this interpretation of non-coplanarity. Probably the most aggravating part about trying to screen a window is getting the tension perfect so it lays flat. [[Special:Contributions/136.49.188.43|136.49.188.43]] 13:47, 7 October 2025 (UTC)

Is the "overly large image mistake" really a mistake, considering it’s about the "size" of an image displaying on a "screen"? {{unsigned ip|89.91.92.1|08:34, 7 October 2025 (UTC)}}
:There is the opinion that Randall made a mistake, but because Cueballs sentence just stops at "how well the screen fits... (the window)" and the panel DOES NOT fit it's window, I believe that this is intentional and the punchline of the comic [[Special:Contributions/195.49.224.20|195.49.224.20]] 09:36, 7 October 2025 (UTC)
::If so, can someone edit the image above to fit the punchline? EDIT: I did it.[[Special:Contributions/138.43.101.123|138.43.101.123]] 12:06, 7 October 2025 (UTC)
:::Aww [[Special:Contributions/138.43.101.123|138.43.101.123]] 18:10, 7 October 2025 (UTC)
: I don't see the problem. For me (on Firefox), while the hi-res image is loaded, it's displayed in the usual size on xkcd.com. I wouldn't even have noticed if I hadn't read it here. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 13:00, 7 October 2025 (UTC)
:: Update: I see it on a different computer (also Firefox). Well that's weird.--[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 13:37, 7 October 2025 (UTC)
::: It was displaying normally for me a few hours ago, but now, on the same browser on the same machine, it's outsized. [[Special:Contributions/82.13.184.33|82.13.184.33]] 15:02, 7 October 2025 (UTC)

Interesting that Cueball has hair in the last two panels --[[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 08:40, 7 October 2025 (UTC)
: Obviously with all the screen building he hasn't had time to shave his head. [[Special:Contributions/82.13.184.33|82.13.184.33]] 09:28, 7 October 2025 (UTC)
: In the last two panels he also wears some kind of bracelet. [[Special:Contributions/82.54.66.129|82.54.66.129]] 10:59, 7 October 2025 (UTC)
:: "That's not a bracelet, its a <s>space station</s> band-aid." Cueball deserves the DIY Purple Heart.--[[User:Bilkie|Bilkie]] ([[User talk:Bilkie|talk]]) 13:52, 7 October 2025 (UTC)

Joke's on Cueball: this problem can be seen as mathematical, and Nobel Prizes famously exclude that field in theor awards (the closest is the relatively new award on Economy). He'd have a better chance asking for a Fields Medal.--[[Special:Contributions/94.73.49.72|94.73.49.72]]

One must imagine Norm Abrams happy. [[User:Fephisto|Fephisto]] ([[User talk:Fephisto|talk]]) 13:56, 7 October 2025 (UTC)

Whatever issue you guys have solved is still happening for me. Comic is huge. (on chromeOS) --'''''[[User:DollarStoreBa'al|DollarStoreBa'al]][[User_talk:DollarStoreBa'al|converse]] 16:27, 7 October 2025 (UTC)
:ditto here. also chromeOS, specifically a Chromebook is that means any thing -- [[User:Black Hat's Hat|Black Hat's Hat]] ([[User talk:Black Hat's Hat|talk]]) 18:08, 7 October 2025 (UTC)
::If it's still happening, try a hard refresh: Ctrl+Shift+R --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 12:11, 8 October 2025 (UTC)

3151: Window Screen

2025-10-07T18:15:27Z

NeatNit: remove imagesize parameter

{{comic
| number = 3151
| date = October 6, 2025
| title = Window Screen (UI)
| image = window_screen.png
| titletext = The Nobel Prize in Physiology or Medicine or Home Improvement or DIY
}}

==Explanation==
{{incomplete|This page was created by user interface. Don't remove this notice too soon.}}
[[Cueball]] believes he should receive a {{w|Nobel Prize}} for creating a custom screen for a particularly troublesome window, due to what he considers to be the immense amount of work and consideration that went into it. He is writing to the {{w|Nobel Foundation}} to nominate himself. (The Foundation does not currently accept self-nominations, or nominations from random individuals.)

A {{w|window screen}} is most often used to block insects, other small animals, and debris from passing through an open window, while allowing air and light. One can also make a mesh that attaches to the outside of the glass to display an outward-facing image or limit incoming light. Most windows are flat and rectangular, and pre-made meshes for these can be measured and cut with basic tools. Some windows have complex shapes. It can be very difficult to design a screen that neatly matches a complex glass surface.

An {{w|Angle#Types_of_angles|oblique angle}} is any angle that is not a multiple of 90 degrees (not a right or straight angle). While right angles allow for intuitive mapping of sides to an X-Y coordinate plane, acute or obtuse angles indicate that at least one side will have endpoints that differ in both coordinates. This requires extra calculations.

Curved edges require extra care to measure and cut. Circular or semi-circular windows follow a constant curve that can be traced with limited effort, but the window in the comic is irregular.

{{w|Coplanarity|Noncoplanarity}} is a state where all elements of a system cannot be represented on the same plane. This implies that the window is not flat, suggesting that the glass is curved, and/or that the surrounds that the screen had to be fitted to did not match the shape of the window. The shape in the comic could possibly occur if the room featured in the first and third panels was at least partly conical, with the window narrowing to match the wall sloping inward to a central point above (this would also fit the earlier mention of multiple curved edges). The glass could also be shaped into an outward bubble. Either way, the mesh must be carefully shaped.

Perfectly fitting a custom screen to such a window may be a significant technical accomplishment that the builder may wish to share with acquaintances. However, it is generally not considered near the level of one of the world's most prestigious awards, which often recognize years of effort, rather than something that Cueball did between the "this weekend" and the present (at most one week).

Since no Nobel Prize currently exists that would cover recognition of Cueball's achievement, the title text suggests extending the existing prize in physiology or medicine to also cover home improvement and DIY. [[Randall]] likely chose this prize because it is already anomalous in containing an 'or' in its title, where the other prizes mention only a single area of endeavour. The comic's release also coincided with the announcement of the [https://www.nobelprize.org/prizes/medicine/2025/press-release/ 2025 Nobel Prize in Physiology or Medicine].

==Trivia==
At the time this comic was released, there was a technical error making it too large to fit into the page on normal desktop/laptop screens. Since [[1084: Server Problem#Trivia|1084: Server Problem]], two versions of each comic are usually available: normal (1x) and high-resolution (2x). This makes the comic look sharp even on high-DPI screens, such as phones, tablets, and some more expensive computer displays. In this case, however, the 2x version was accidentally uploaded as ''both'' versions, making the 1x comic twice as large as it should be. It is possible that Randall did this intentionally as an added punchline.

Users with this issue can zoom in with their browsers (Ctrl+mouse scroll up) to see the comic better. If the screen is large enough, you might consider always reading xkcd on 200% zoom to see the higher resolution comics.

This issue was fixed at some point between 14:57 and 15:54, 7 October 2025 (UTC).

==Transcript==
{{incomplete transcript|Don't remove this notice too soon.}}

:[The text for the first panel appears above the panel itself.]
:This weekend,
:I had to make an oversized screen for a porch window.
:[Cueball is looking out through a window with a straight bottom, slanting sides and a curved upper edge.]

:[In each of the remaining panels, the text appears within the panel but above the illustration.]
:It involved countless tiny problems, each somehow way harder than it should be.
:Oblique angles. Curved edges. Noncoplanarity.
:[Cueball is shown pondering various problems involving geometry and angles.]

:... I solved them all.
:I measured precisely. I did trigonometry. I made custom parts.
:And it fit '''''perfectly.'''''
:No gaps, no ripples.
:[Cueball with slightly more hair, looking at the window covered by a bordered mesh.]

:I know that your foundation normally limits its purview to physics, medicine, peace, chemistry and literature.
:However, if you review the attached photo showing how well the screen fits into the...
:[Cueball is revealed to be sitting at a computer, typing a message.]

{{comic discussion}}<noinclude>

[[Category:Comics featuring Cueball]]

File:window screen.png

2025-10-07T18:13:33Z

NeatNit: Manual upload of 3151: Window Screen (see Trivia section)

== Summary ==
Manual upload of [[3151: Window Screen]] (see Trivia section)
== Licensing ==
{{XKCD file}}

3151: Window Screen

2025-10-07T07:47:30Z

NeatNit: /* Trivia */ better explanation of technical issue

{{comic
| number = 3151
| date = October 6, 2025
| title = Window Screen
| image = window_screen_2x.png
| imagesize = 740x299px
| noexpand = true
| titletext = The Nobel Prize in Physiology or Medicine or Home Improvement or DIY
}}

==Explanation==
{{incomplete|This page was created by Alfred Nobel's screen saver. Don't remove this notice too soon.}}
Cueball believes he should receive a Nobel Prize for creating a custom screen for a window.

A window screen is most often used to block insects, other small animals, and debris from passing through an open window, while allowing air and light. One can also make a mesh that attaches to the outside of the glass to display an outward-facing image or limit incoming light. Most windows are flat and rectangular, and pre-made meshes for these can be measured and cut with basic tools. Some windows have complex shapes. As discussed, it is very difficult to design a screen that neatly matches a complex glass surface.

An oblique angle is any angle that is not a multiple of 90 degrees (not a right or straight angle). While right angles allow for intuitive mapping of sides to an X-Y coordinate plane, acute or obtuse angles indicate that at least one side will have endpoints that differ in both coordinates. This requires extra calculations.

Curved edges require extra care to measure and cut. Circular or semicircular windows follow a constant curve that can be traced with limited effort, but the window in the comic is irregular.

"Noncoplanarity" means that not all elements of a system can be represented on the same plane. It is implied that the window is not flat, suggesting that the glass is curved. The shape in the comic could possibly occur if the room featured in the first and third panels was at least partly conical, with the window narrowing to match the wall sloping inward to a central point above (this would also fit the earlier mention of multiple curved edges). The glass could also be shaped into an outward bubble. Either way, the mesh must be carefully shaped.

Perfectly fitting a custom screen to such a window may be a significant technical accomplishment that the builder may wish to share with acquaintances. However, it is generally not considered near the level of one of the world's most prestigious awards, which often recognize years of effort, rather than something that Cueball did between the "this weekend" and the present (at most one week).

==Trivia==
At the time this comic was released, there was a technical error making it too large to fit into the page on normal desktop/laptop screens. Since [[1084: Server Problem#Trivia|1084: Server Problem]], two versions of each comic are usually available: normal (1x) and high-resolution (2x). This makes the comic look sharp even on high-DPI screens, such as phones, tablets, and some more expensive computer displays. In this case, however, the 2x version was accidentally uploaded as ''both'' versions, making the 1x comic twice as large as it should be.

Users with this issue can zoom in with their browsers (Ctrl+mouse scroll up) to see the comic better. If the screen is large enough, you might consider always reading xkcd on 200% zoom to see the higher resolution comics.

As of this writing (07:47, 7 October 2025 (UTC)), this issue has not been fixed yet.

==Transcript==
{{incomplete transcript|Don't remove this notice too soon.}}

:[The text for the first panel appears above the panel itself.]
:This weekend,
:I had to make an oversized screen for a porch window.
:[Cueball is looking out through a window with a straight bottom, slanting sides and a curved upper edge.]

:[In each of the remaining panels, the text appears within the panel but above the illustration.]
:It involved countless tiny problems, each somehow way harder than it should be.
:Oblique angles. Curved edges. Noncoplanarity.
:[Cueball is shown pondering various problems involving geometry and angles.]

:... I solved them all.
:I measured precisely. I did trigonometry. I made custom parts.
:And it fit '''''perfectly.'''''
:No gaps, no ripples.
:[Cueball with slightly more hair, looking at the window covered by a bordered mesh.]

:I know that your foundation normally limits its purview to physics, medicine, peace, chemistry and literature.
:However, if you review the attached photo showing how well the screen fits into the...
:[Cueball is revealed to be sitting at a computer, typing a message.]

{{comic discussion}}<noinclude>

[[Category:Comics featuring Cueball]]

Talk:3151: Window Screen

2025-10-07T07:37:40Z

NeatNit:

Talk:3151: Window Screen

2025-10-07T07:35:19Z

NeatNit: explain 2x issue

Talk:3149: Measure Twice, Cut Once

2025-10-02T20:06:39Z

NeatNit: Measure never, cut forever

FIRST!!!11 [[Special:Contributions/2001:67C:89C:702:1CE:1CE:BABE:3|2001:67C:89C:702:1CE:1CE:BABE:3]] 00:38, 2 October 2025 (UTC) a
:TH1RD! [[User:RadiantRainwing|RadiantRainwing]] ([[User talk:RadiantRainwing|talk]]) 00:57, 2 October 2025 (UTC)
::F1FT3EN7H!! [[User:Logalex8369|Logalex8369]] ([[User talk:Logalex8369|talk]]) 16:09, 2 October 2025 (UTC)

Measure once, shame on you. Cut twice, shame on me!
[[User:StapleFreeBatteries|StapleFreeBatteries]] ([[User talk:StapleFreeBatteries|talk]]) 00:57, 2 October 2025 (UTC)
:You know, that's not a bad proverb! [[User:RadiantRainwing|RadiantRainwing]] ([[User talk:RadiantRainwing|talk]]) 00:58, 2 October 2025 (UTC)
:: I will cut you! Shame on me. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:49, 2 October 2025 (UTC)

This is my first XKCD explained! [[Special:Contributions/108.254.160.57|108.254.160.57]] 00:59, 2 October 2025 (UTC)
:Hip hip hooray for you! You did a great job. [[User:RadiantRainwing|RadiantRainwing]] ([[User talk:RadiantRainwing|talk]]) 01:02, 2 October 2025 (UTC)
: OK - but how many times did you check it before saving? [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:49, 2 October 2025 (UTC)

A fundamental problem with this comic is that a "good carpenter" really means "an efficient carpenter" (true of any craftsman, really). Economy of motion, skilled enough to know when to be really precise and to know when precision doesn't matter and is a waste of time. The efficient carpenter doesn't need to measure twice, he or she gets it right on the first try. Or, consistent with the above, knows their capabilities well enough so they can only measure twice when it's truly necessary. And, of course, some of the best efficiencies come from not "measuring" at all — using an end stop or a jig so the cut is easy and repeatable without measurement. Drawing a line (or cutting without a line) against the actual reference point rather than against an intermediate measurement tool (some might call this "scribing," but that suggests a level of precision that isn't what I mean). Effectively, "measure zero times, cut once." And in the opposite, sometimes the most efficient approach is not to measure at all (whether numerically or against a reference object), but to make a rough cut and then a finish cut — effectively, "measure zero times, cut twice." Also possible is if you are gang cutting a stack of N boards, you measure 0 times or once and then make 1 cut, so on a per-board basis it's measure once, cut 1/N. I don't know that all of these things are obvious, per se, but I can't help feel surprised that they don't seem to have been considered. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 06:38, 2 October 2025 (UTC)
: That seems to be more of an issue with the proverb, rather than the comic. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:49, 2 October 2025 (UTC)
:Are you saying my wall with studs just butt ended atop one another isn't good enough? Oh, fine then, I'll go add some bracing and maybe nails. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 11:07, 2 October 2025 (UTC)
::PLEASE STOP, YOU'RE KILLING ME!!!! --'''''[[User:DollarStoreBa'al|DollarStoreBa'al]][[User_talk:DollarStoreBa'al|converse]] 13:08, 2 October 2025 (UTC)

Somewhat disappointed there's no joke about quantum mechanics, even in the title text. I guess figuring out how to fit the uncertainty principle here is left as exercise to the reader? [[Special:Contributions/164.90.218.225|164.90.218.225]] 10:44, 2 October 2025 (UTC)

The title text seems to reference the Taoist concept of the uncarved block - https://en.wikipedia.org/wiki/Pu_(Taoism) {{unsigned ip|70.124.160.162|13:18, 2 October 2025}}

Possible reference to the real-life use of the reverse proverb (measure once cut twice) which is used by many makers. I am familiar with the concept from Adam Savage, but I don’t know if he’s the originator. The idea is that measurement is actually too imprecise of a tool and should only be used as an approximation. The final size of a piece will be based on something like a pressure fit. {{unsigned ip|98.36.13.95|14:24, 2 October 2025}}

About the title text, would the carpenter have to look or otherwise measure the wood to assume it's fine? Measure once, cut 0 times. {{unsigned|L0L0Z1993|15:19, 2 October 2025}}

[https://xkcd.com/467/ two measures one cut]

Isn't this the 20th anniversary of XKCD? Strange that Randall wouldn't make a special comic! [[Special:Contributions/92.92.106.219|92.92.106.219]] 18:27, 2 October 2025 (UTC)
:Depends upon [[:Category:First day on xkcd.com|what you count the start as]].
:Also, is 20 years special enough to mark..? Maybe 0x20 years! Or 0x2A... [[Special:Contributions/82.132.215.216|82.132.215.216]] 19:26, 2 October 2025 (UTC)

My favorite option: "Measure never, cut forever!" Heard Bec Hill say this on the podcast A Problem Squared (don't ask me which episode). Couldn't find much about it online so for all I know she came up with it. It's catchy! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 20:06, 2 October 2025 (UTC)

Talk:3087: Pascal's Law

2025-05-11T05:12:00Z

NeatNit: complain about unreadable old hebrew

I remember learning about this and thinking it was intuitive, but I didn't really think of these consequences. Maybe everybody is making powerful lifting machines for lifting cars and houses with your bare hands, rather than explaining the article, that there isn't one yet. Pascal's law basically says that if you make one end of a container of fluid X times larger, then any force exerted on the small end is multiplied by X on the large end, so you can make it near-infinite by making the small end very small. But you'll need a little more machinery added (like a gear system) if you want the distance actually moved to be higher. Actually I think that might undo the gains in force entirely. That might be how it happens, it might swap distance for force so the same work is performed.

Hey, remember that comic where Randal challenged people to fold a paper too small? This hand-makeable device could get farther on that!
[[Special:Contributions/172.70.111.110|172.70.111.110]] 21:46, 9 May 2025 (UTC)
: yes, that's how it works; the total work is constant and the hydraulic system is converting a small force over a long distance to a large force over a small distance. if you additionally want the force to be over a larger distance, you need to put more energy into the system or else you could push this machine with its own output and get free energy from nothing. really though hydraulics are just smoother, backlashless, equivalents to a gear train in the first place so you generally wouldnt need to use both. - [[User:Vaedez|Vaedez]] ([[User talk:Vaedez|talk]]) 23:37, 9 May 2025 (UTC)
:: Small tube needs to be X times as long to get same displacement. Good for linear force rather than torque. Fluid's own pressure can be the force if tube is long enough. [[Special:Contributions/172.68.55.33|172.68.55.33]] 11:41, 10 May 2025 (UTC)

As someone old enough to remember the [https://en.m.wikipedia.org/wiki/Slashdot_effect slashdot effect], I wonder if XKCD comics generate a similar effect on search engines. Though I doubt they would buckle under the weight these days. [[Special:Contributions/172.69.60.148|172.69.60.148]] 22:00, 9 May 2025 (UTC)

To whoever wrote the initial transcript, remember that we don't include the title text. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 22:06, 9 May 2025 (UTC)

I have to wonder whether he has the same disbelief of, say, levers... which allow one to move the Earth. [[User:Jordan Brown|Jordan Brown]] ([[User talk:Jordan Brown|talk]]) 23:34, 9 May 2025 (UTC)

Although some laws of physics are absolute and lead to extreme consequences, others are taught in a simplified form that can lead to wrong conclusions. For example, "Light and heavy objects fall at the same rate" can be used to prove that objects fall at the same rate on the Earth and the Moon - which is far from correct. If the Moon were somehow dropped onto the Earth, it would fall at a certain rate. The Earth dropped on the Moon would necessarily fall at the same rate. So if the Moon falling on the Earth fell at the same rate as a bowling ball, then the bowling ball would have to fall at the same rate on the Moon. When I read Heinlein's _The Rolling Stones_ as a pre-teen, where he describes things falling slower on the Moon, I applied this reasoning and concluded that Heinlein must have made a mistake. The solution to this paradox is that something as big as the Moon will not only accelerate toward the Earth, it will significantly accelerate the Earth toward it, so the Moon does not actually fall at the same rate as a bowling ball. [[User:Cphoenix|Cphoenix]] ([[User talk:Cphoenix|talk]]) 01:01, 10 May 2025 (UTC)
: I think if you stand at the shared center of mass of the Earth and Moon, that then you see the Moon falling toward the Earth according to its constant field of gravitational acceleration, as well as the Earth falling toward the Moon according to its constant field of acceleration. It was indeed confusing for me to realize this, involving visit to pages such as https://en.wikipedia.org/wiki/Gravitational_acceleration . F=Gm1m2/r^2 so if m1 is taken out you get a constant F=m1 a2 and vice versa. But I think the page says this only holds if the masses are far enough from each other to be treatable as points. [[Special:Contributions/172.68.55.47|172.68.55.47]] 11:57, 10 May 2025 (UTC)

Besides, isn't it better to just ''believe'' in Pascal's Law if it offers a reward of near-infinite force?
[[User:StapleFreeBatteries|StapleFreeBatteries]] ([[User talk:StapleFreeBatteries|talk]]) 04:58, 10 May 2025 (UTC)
:I'll wager that you're pleased with that reference... ;) (Whether or not you actually were!) [[Special:Contributions/172.71.26.43|172.71.26.43]] 15:58, 10 May 2025 (UTC)

Could this be referencing or inspired by this recent paper talking about the use of hydraulics to build pyramids? https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0306690 [[Special:Contributions/172.68.234.169|172.68.234.169]] 08:52, 10 May 2025 (UTC)

It could be noted that simple machines can multiply forces more or less arbitrarily, but only up to what the machine itself can withstand. Many "why didn't the ancients do that?" can be answered with "bronze kind of sucks". [[Special:Contributions/172.69.246.149|172.69.246.149]] 14:19, 10 May 2025 (UTC)
:Right. Archimedes's "Give me a lever long enough..." assumes that the lever is made of a material that won't buckle or snap under the weight of the Earth. If there were a material like that it would make building long bridges much simpler. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:58, 10 May 2025 (UTC)

Is there a name for the teacher character (a cueball with tufts of hair on the sides of his head)? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:58, 10 May 2025 (UTC)

Here's a reference that claims that water hammer, rather than just depth pressure, was the major effect used in ''ruina montium'': https://blog.ferrovial.com/en/2022/08/ruina-montium-use-water-for-digging-romans/ -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 00:04, 11 May 2025 (UTC)

A few years back I posted a question on Stack Exchange (https://history.stackexchange.com/questions/60189/which-mountain-collapsed-in-france-in-1820-21) about a report, in a 19th-century biblical commentary, of a mountain collapsing due to just this kind of thing - fluid pressure building up. First thought when I saw the reference to ''ruina montium'' in the comic was that maybe that's it - but no. So, just curious: anyone have any thoughts on what event is being referred to in that commentary? (The one suggestion that someone made there, about a glacier advancing, doesn't seem to fit.) Thanks! [[Special:Contributions/172.71.23.87|172.71.23.87]] 03:38, 11 May 2025 (UTC)
:No idea, but I gotta say, that font or scan is unreadable. Some words are decipherable like הר גבוה and ובמקומו but damn, about half of it is just splotches. No idea how you could read that. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 05:12, 11 May 2025 (UTC)

Talk:3084: Unstoppable Force and Immovable Object

2025-05-03T09:55:57Z

NeatNit: add MinutePhysics link

lol, i remember this explanation from a minutephysics video. however, the version of the problem i heard, which is actually paradoxical, is "what happens when an immovable object meets an '''irresistible''' force?" [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 00:03, 3 May 2025 (UTC)
:That was also literally my first thought. [[169]], anyone? --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 05:37, 3 May 2025 (UTC)
:The MinutePhysics video: [https://nebula.tv/videos/minute-physics-immovable-object-vs-unstoppable-force-which-wins/ on Nebula] or [https://youtu.be/9eKc5kgPVrA on YouTube] --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 09:55, 3 May 2025 (UTC)

Come on, it's just an arrow made of W- bosons, right? [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 03:22, 3 May 2025 (UTC)
Is there no joke here? Is it just the solution? [[User:Broseph|Broseph]] ([[User talk:Broseph|talk]]) 06:52, 3 May 2025 (UTC)

I remember an explanation by Isaac Asimov in one of his books which was like "by definition, an immovable object will not move at all under any force in the universe, and an unstoppable force will move all of the objects in this way" and then explained how the definitions conflicted each other and as such prevented both from being able to register for the hypothetical at the same time [[Special:Contributions/172.64.236.161|172.64.236.161]] 06:55, 3 May 2025 (UTC)

In the first MMO games, collision was a big problem. A player could block a doorway, and nobody else could go through. It was even worse if the player had "follower" characters or pets.
One solution was to have characters automatically "push" stationary characters out of the way, but that caused other problems. Modern MMO's such as World of Warcraft simply allow characters to pass through each other, as depicted in this xkcd comic. Our eyes fool us into "seeing" that two characters somehow slid past each other. [[Special:Contributions/172.68.228.132|172.68.228.132]] 07:29, 3 May 2025 (UTC)

When the two things pass through each other, at the instant where they both occupy exactly the same space, is there one object or two? [[Special:Contributions/162.158.216.159|162.158.216.159]] 08:02, 3 May 2025 (UTC)
:Given that force is not an object, one. Just like there was when they weren't colocated. [[Special:Contributions/172.69.43.220|172.69.43.220]] 08:29, 3 May 2025 (UTC)

Talk:3062: Off By One

2025-03-13T10:19:10Z

NeatNit: hard things in distributed computing

But what about floats? [[User:GreyFox|GreyFox]] ([[User talk:GreyFox|talk]]) 20:01, 12 March 2025 (UTC)

Is this dithering? [[User:Hcs|Hcs]] ([[User talk:Hcs|talk]]) 21:19, 12 March 2025 (UTC)

: Could be. --[[User:PRR|PRR]] ([[User talk:PRR|talk]]) 22:19, 12 March 2025 (UTC)

But if it's adjusted both on store and on read, then there is a chance (of about 1 in 22) that the value after read will be exactly the same as the value before store. This does not eliminate pre-existing off-by-one errors, and in fact, introduces new ones if the adjustment on read is off by one from the adjustment on store, when there was no off-by-one error in the original code. And what's worse - with a single store-read cycle, the value can never be off by 40 to 50. It can be off by up to 10, or by between 80 to 100, in either direction. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 22:42, 12 March 2025 (UTC)
:I was ''just'' adjusting the explanation to imply this sort of thing (without having read your comment, just yet). Given the assumption that n=n±(40+rand(11)) at every stage (I'm assuming 'inclusive', Snaxmcgee!), two steps of 'intentional adjustment' might result in: -100 (x1), -99 (x2), -98 (x3), -97 (x4), -96 (x5), -95 (x6), -94 (x7), -93 (x8), -92 (x9), -91 (x10), -90 (x11), -89..-80 (x10..x1), -10 (x2), -9 (x4), -8 (x6), -7 (x8), -6 (x10), -5 (x12), -4 (x14), -3 (x16), -2 (x18), -1 (x20), ±0 (x22), +1..+10 (x20..x2), +80..+90..+100 (x1..x11..x1).
:This gives a chance of being entirely correct as 22/484 (4.5454...%) and ''each'' off-by-one as ''very'' slightly less (though ±1, in total is almost twice as likely!).
:Adding further steps (skipping odd step-cummulations, at least at first, until you get to nine of them and everything entirely stops being discontinuous) just spreads out an increased number of highs right next to zero deflection... [[Special:Contributions/172.70.86.129|172.70.86.129]] 23:38, 12 March 2025 (UTC)

::Obligatory quote:
There are two hard things in computer science: cache invalidation, naming things, and off-by-one errors.
::See here for a full story of this quote: https://twitter.com/codinghorror/status/506010907021828096
::--[[Special:Contributions/162.158.129.64|162.158.129.64]] 08:28, 13 March 2025 (UTC)
:::And 3 hard things in distributed computing: 3. Delivering messages exactly one time, 2. Making sure things happen in the correct order, and 3. Delivering messages exactly one time [[User:Jamcdonald|Jamcdonald]] ([[User talk:Jamcdonald|talk]])
::::Presumably 1 is not losing data? --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 10:19, 13 March 2025 (UTC)

Talk:3062: Off By One

2025-03-12T22:42:23Z

NeatNit: I could have sworn I logged in before that edit

Talk:2927: Alphabetical Cartogram

2024-05-02T15:04:12Z

NeatNit: meaning of fair

replaced incorrect explanation [[Special:Contributions/172.70.111.45|172.70.111.45]] 17:17, 1 May 2024 (UTC)
Is it me or is Hawaii strangely bigger than california. {{unsigned|172.70.100.40}}
:I think he's only counting the land area. The area between the islands may be creating an illusion that Hawaii is bigger. It's hard to tell just by looking, does anyone have the tech to measure this? P.S. remember to sign... [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 14:11, 1 May 2024 (UTC)

Im just wondering why Maine is still so big.... [[User:JushJosh|JushJosh]] ([[User talk:JushJosh|talk]]) 13:22, 1 May 2024 (UTC)Jush
:I know, right? That's what made me think it wasn't just a simple alphabetical listing. That, and Hawaii is bigger than Alaska, despite the fact that Alaska is substantially higher on the list. In fact, it even appears that Alaska is smaller than Maine! How did Randall decide on the sizes??? [[User:Pie Guy|Pie Guy]] ([[User talk:Pie Guy|talk]]) 16:01, 1 May 2024 (UTC)

The sad part is that Rhode Island grew. [[Special:Contributions/172.71.31.139|172.71.31.139]] 14:01, 1 May 2024 (UTC)

I believe it is some sort of ranking rather than swapping sizes as the chart suggests, as South Carolina appears to be smaller than normal (?) [[User:Primmy|Primmy]] ([[User talk:Primmy|talk]]) 14:56, 1 May 2024 (UTC)

Poor Utah :( [[User:Z1mp0st0rz|If you click on this you will get a fun surprise]] ([[User talk:Z1mp0st0rz|talk]]) 15:15, 1 May 2024 (UTC)

I believe the first paragraph is incorrect. I did a full comparison, and Texas shrank the most (dropping 41 places from size ranking to alphabetical ranking), while Connecticut as well as Delaware grew the most (each rising 41 places between the lists). [[Special:Contributions/172.71.255.28|172.71.255.28]] 15:40, 1 May 2024 (UTC)

This map gives a lot more land to Mexico. [[User:Weslar|Weslar]] ([[User talk:Weslar|talk]]) 16:31, 1 May 2024 (UTC)
:Mexico is not represented at all in the map. And all states are much smaller than in reality (unless you have a very big monitor, c.f. [[2911]]) --[[Special:Contributions/172.71.160.32|172.71.160.32]] 12:30, 2 May 2024 (UTC)

UNFORTUNATELY it seems that there are many errors in the actual relationship of sizes. I did a quick area take off of each state. These units are in miles using the real width of Colorado (since it is about the same place in the list) as the scale reference. https://imgur.com/a/hKIVjRZ. you can see immediately that Delaware and Alaska and Iowa are incorrect in the order.

Ignoring the Errors in the map and Assuming We are keeping the total area of the US the same and scaling the new map based on this total... then Alaska loses the most land area ( approx 510,000 mi) and Alabama gains the most Land area (156,000 mi). Looking at which state gained or lost the largest percentage of its land area shows that Minnesota is the least affected at only 4.6% or 4,200 mi and Wyoming is the most affected losing 98% of its land area or 95,000 miles.[[Special:Contributions/162.158.41.56|162.158.41.56]]

As a Wyomingite, I can't complain. We're still bigger than our population justifies. (fun fact, we get two whole senators despite lacking the population to actually justify a single house member)[[Special:Contributions/172.68.34.59|172.68.34.59]] 17:08, 1 May 2024 (UTC)

Alaska is STILL disproportionally small. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 17:24, 1 May 2024 (UTC)

Utah is way too big (should be after Texas) and Idaho is too small (should be bigger than the Ms)

Why the hell is Massachusetts so BIG?! [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 13:01, 2 May 2024 (UTC)
:To account for all its Mass. [[Special:Contributions/172.71.242.175|172.71.242.175]] 13:51, 2 May 2024 (UTC)

I went further and measured the exact sizes of each state to the pixel: https://imgur.com/a/d6ruHvs really nerd sniped myself lol. The post includes excel screenshots as well as text, and the image I used at the bottom. Will explain methodology if anyone wants. Obviously all these discrepancies are due to the fact that the states actually have to fit together for the joke-map to work. [[User:Paintadot|Paintadot]] ([[User talk:Paintadot|talk]]) 13:48, 2 May 2024 (UTC)
:Having the pixel area for each state in the explanation would be really nice! Do you count the "border pixels" (or maybe half of them) to the pixel area? (not sure if that would be sufficient to have Alaska stay atop of Arizona ...) --[[Special:Contributions/172.71.160.32|172.71.160.32]] 14:39, 2 May 2024 (UTC)

What definition of 'fair' is Randall using? --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 15:04, 2 May 2024 (UTC)

Talk:2923: Scary Triangles

2024-04-23T04:43:50Z

NeatNit:

Sharks are but two-dimensional icebergs. [ What is Titanic in this metaphor? ] [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 00:17, 23 April 2024 (UTC)
:The Orca. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 00:33, 23 April 2024 (UTC)

This feels like a riff on cosmology, not sure if it's meant to be it specifically, just sounds a lot like "recent research has discovered 90% of the mass in the universe is dark matter" kind of thing. [[Special:Contributions/172.69.22.56|172.69.22.56]] 03:57, 23 April 2024 (UTC)

Just like 20,000 Leagues Under The Sea predicted the modern submarine, so too did Jaws predict the modern shark. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 04:43, 23 April 2024 (UTC)

Talk:2921: Eclipse Path Maps

2024-04-18T16:22:32Z

NeatNit: TimeAndDate shill (actually I just like it and want to share)

Can anyone think of some particularly pathological solar eclipse examples? [[User:Lordpipe|Lordpipe]] ([[User talk:Lordpipe|talk]]) 06:11, 18 April 2024 (UTC)
:The {{w|Solar eclipse of August 12, 2026|2026 eclipse}} will be pretty hard to see. [[Special:Contributions/172.68.193.195|172.68.193.195]] 07:42, 18 April 2024 (UTC)
::It does travel into Europe in Spain above Portugal, so it could be viewed from there. But could be a lot of people aggregating at the coast line there, as it will be the most scenic place to see it plus the longest totality in Europe will be at that point. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 12:03, 18 April 2024 (UTC)
:::For the {{w|Solar_eclipse_of_August_2,_2027|2027 eclipse}} the only real good location to watch it from (at least in main land Europe) will be Gibraltar, a very small place for the 40 mill visitors... Most of this Eclipse is over seas and most other land based locations are in Africa and middle East, some places where it might not be the best place to travel to... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 11:56, 18 April 2024 (UTC)
:During the {{w|Solar_eclipse_of_November_14,_2031|2031 eclipse}}, totality will not be visible from land. At all. And for the {{w|Solar_eclipse_of_April_9,_2043|2043 eclipse}}, the line of totality will be more like a small semicircle.--[[Special:Contributions/172.69.7.118|172.69.7.118]] 14:25, 18 April 2024 (UTC)Anonymous

This fictional map has a passing resemblance to the {{w|Solar_eclipse_of_August_12,_2026|august 12, 2026 solar eclipse}} passing over Greenland, Iceland and the north of Spain.
Calling Iceland the isle of perpetual fog is kind of fitting, but there are hardly any tornados in Africa. [[User:Condor70|Condor70]] ([[User talk:Condor70|talk]]) 08:29, 18 April 2024 (UTC)
:This is also the next total solar eclipse. These facts about these eclipses should be mentioned in the explanation. From both comments here. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 11:56, 18 April 2024 (UTC)

Entabled the labels. Saved the need for the original 'ideal place, shame about the crowds' paragraph. Added better possibility of individual analysis for 'unfortunate' locations (do edit, as seems necessary). Was tempted to add in '''"| ''unlabeled stretch of water'' || Water || (Some of this stretch of water be considered risky, or at least unfortunate, due to waterspouts arising from the next zone's weather. The immediate shoreline may be crowded by numerous small tourist boats trying their luck and avoiding the (misty?) northern shoreline.)"''', or something far more trite, betwixt the 'nice place' and 'tornado alley', just to account for an unlabeled zone. [[Special:Contributions/172.70.162.37|172.70.162.37]] 13:31, 18 April 2024 (UTC)

For eclipses, I like TimeAndDate.com's info. You can see a list of upcoming total eclipses here: https://www.timeanddate.com/eclipse/list-total-solar.html and click one to see and explore basically everything about it, in a way that's super easy to understand. Other types of eclipse are also available. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 16:22, 18 April 2024 (UTC)

2877: Fever

2024-01-06T00:36:51Z

NeatNit: significant digits! see: 2170: Coordinate Precision (closest xkcd I could find)

{{comic
| number = 2877
| date = January 5, 2024
| title = Fever
| image = fever_2x.png
| imagesize = 514x587px
| noexpand = true
| titletext = Hypothermia of below 98.6 K should be treated by leaving the giant molecular cloud and moving to the vicinity of a star.
}}

==Explanation==
{{incomplete|Created by an EXPLODING GENOME OF FLU VIRUSES - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

The comic purports to be a chart on {{w|fever}} temperatures. It starts out reasonably and then progresses to very high, impossible to have — at least for meaningful periods of time — temperatures, a theme present in many xkcd comics.

{| class="wikitable" style="margin:auto"
|+ Treating a Fever
|-
! Fever Temperature (Celsius) !! Equivalent Fahrenheit temperature !! Treatment !! Additional notes
|-
| 38-40 || 100-104 || Fluids, rest, normal doctor stuff || Normal fever temperatures.
|-
| 40-45 || 104-113 || Hospital, advanced doctor stuff || Point at which humans might start experiencing brain damage from fever.
|-
| 45-100 || 113-212 || Exit that steam cloud immediately || Only a few people could survive such external temperatures, for extended periods, without severe discomfort or even injury. And it would be an increasingly improbable core body temperature to register for purely biological reasons.
After this point, there is basically no further possibility of the temperature range being ''in vivo'', rather than in the increasingly hostile environments (which are also not healthy to experience).
|-
| 100-400 || 212-750 || Stop, drop, and roll || Someone is probably on fire. Stop, drop, and roll is the recommended method for putting out flames on your clothing.
|-
| 400-500 || 750-930 || Return to Earth from Venus ASAP || 464°C (867°F) is {{w|Venus}}ian atmosphere temperature.
|-
| 500-1,500 || 930-2,700 || Please climb out of that volcano || {{w|Magma}} is about 700°C (1,292°F). Therefore, if someone is at that temperature, they are probably in lava/magma.
|-
| 1,500-5,000 || 2,700-9,000 || Turn your tunneling machine around and come back up to the surface || 4,400-6,000°C (7,952-10,832°F) is the estimate internal temperature of the {{w|Earth}}. This is at least the 6th comic with a reference to the 2003 movie ''{{w|The Core}}'' (widely considered a contender for "{{w|The Core#Reception|all-time-worst 'science in a movie' winner}}"). We have: [[673: The Sun]], [[2011: Newton's Trajectories]], [[2074: Airplanes and Spaceships]], [[2765: Escape Speed]], [[2858: Thanksgiving Arguments]].
|-
| 5,000-6,000 || 9,000-10,800 || No, the surface of the '''''Earth''''', not the Sun || 5,500°C (9,932°F) is the approximate temperature of the surface of the {{w|Sun}}. The Sun's {{w|photosphere}} has a temperature between 4,400 and 6,600 K (4,130 and 6,330 °C) (with an effective temperature of 5,772 K (5,499 °C)).
|-
| 6,000-50,000 || 10,800-90,000 || Wait, that's not the Sun. What star are you visiting? Come back right now. || Surface temperatures of {{w|main sequence|main-sequence}} stars larger than the Sun can go up to 50,000 (Kelvin and degrees Celsius are indistinguishable at this point). Though some stars can be even hotter.
|-
| 50,000-20,000,000 || 90,000-36,000,000 || At least stay on the '''''surface''''' of the star instead of diving down to the core || Core temperatures of main-sequence stars like the Sun are usually around ten million kelvins, while larger and hotter stars can reach up to a hundred million.
|-
| 20,000,000-10,000,000,000 || 36,000,000-18,000,000,000 || You know, you could've picked a normal star instead of one that's exploding || {{w|Supernova}}e can reach temperatures of billions of degrees for brief periods, with type II supernovae even reaching hundreds of billions of degrees.
|-
| 10,000,000,000 or higher || 18,000,000,000 or higher || I hope you're enjoying your visit to the Big Bang but you should really come back home immediately || 1032 °C (or K) is the estimated temperature of the {{w|Big Bang}}
|}

The title text suggests that those with temperatures under 98.6 Kelvin (-173.55 Celsius or -280.39 Fahrenheit) are in a {{w|molecular cloud}} and that they should get near a star to warm them up. 98.6 ''Fahrenheit'' (=37°C) is the average human resting body temperature.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

[There is a table of temperatures and corresponding "treatments" for fevers of those temperatures. The caption above the table reads:]

{| class="wikitable"

|+ Treating a Fever
! Fever !! Treatment
|-
| 38°C-40°C (100°F-104°F) || Fluids, rest, normal doctor stuff
|-
| 40°C-45°C || Hospital, advanced doctor stuff
|-
| 45°C-100°C || Exit that steam cloud immediately
|-
| 100°C-400°C || Stop, drop, and roll
|-
| 400°C-500°C || Return to Earth from Venus ASAP
|-
| 500°C-1,500°C || Please climb out of that volcano
|-
| 1,500°C-5,000°C || Turn your tunneling machine around and come back up to the surface
|-
| 5,000°C-6,000°C || No, the surface of the '''''Earth''''', not the Sun
|-
| 6,000°C-50,000°C || Wait, that's not the Sun. What star are you visiting? Come back right now.
|-
| 50,000°C-20,000,000°C || At least stay on the '''''surface''''' of the star instead of diving down to the core
|-
| 20,000,000°C-10,000,000,000°C || You know, you could've picked a normal star instead of one that's exploding
|-
| 10,000,000,000°C or higher || I hope you're enjoying your visit to the Big Bang but you should really come back home immediately
|}

{{comic discussion}}

[[Category:Astronomy]]
[[Category:Charts]]
[[Category:Medicine]]

1156: Conditioning

2024-01-06T00:13:20Z

NeatNit: /* Explanation */ added football birds university story

{{comic
| number = 1156
| date = January 4, 2013
| title = Conditioning
| image = conditioning.png
| titletext = 'Why are you standing in the yard wearing a papal hat and a robe covered in seeds?' 'Well, the Pope is visiting our town next month ...'
}}

==Explanation==
Herein, the author devises a method of addressing the issue of drivers who turn up their music to irritating levels which usually results in a lot of bass coming from the car — the low frequencies being the ones that most easily penetrate the car and travel farther, thus being more audible to those around the car.

As the title suggests, the idea is to {{w|Classical conditioning|condition}} animals to respond to a thumping bass. The machine is described as working as follows: every few hours, the bass would turn on, and the box would dispense food behind an opening designed to look like an open car window. Over time, local wildlife would flock to the box to get the food from inside, and would become trained that the sound of a subwoofer means that they can get food by flying through a car window.. Eventually, the animals would respond to any low music, including that played by cars.

The end result would be that the local wildlife would approach, and presumably attempt to enter, any car that has that same thumping bass. Drivers, in turn, would cease to turn up their music in order to prevent the groups of animals from chasing after their cars, thus solving the problem of annoyingly loud bass. This behavior modification can itself be seen as a {{w|Operant conditioning|somewhat different form of conditioning}}.

The title text is a dialogue about using a similar method of conditioning to send animals after a visiting {{w|Pope}}. Why someone would want that to happen is left to the reader's imagination, although papal visitations usually disrupt the local communities with onerous traffic and special and ostentatious ceremonies, and do attract huge crowds of dignitaries, celebrities, the faithful, the curious, and attending purveyors of foodstuffs and trinkets. Not to mention the impact to the local AirBnB market. Or it could just be Black Hat, who would not need any particular reason for this sort of behavior, and might choose the Pope because of his highly recognizable outfit.

Although these plan may seem far-fetched, a similar scheme was seriously proposed in the United Kingdom during {{w|World War I}} to condition {{w|Gull|seagulls}} to associate a submarine's {{w|periscope}} with food, which would give away the locations of enemy submarines as the gulls flocked to their periscopes being raised.

There is also a story about a university student using such conditioning to get birds to disrupt a football game using a strategy similar to the one for the pope in the title text. The student went to the football field every day during summer break dressed as a referee, spreading seeds and blowing his whistle. During the first game at the next semester, the first whistle of the referee summoned a large number of birds looking for the usual seeds, preventing the game from proceeding. According to [[Snopes]], there is [https://www.snopes.com/fact-check/field-of-seeds/ no evidence of this ever actually taking place], but it's nearly impossible to disprove.

==Transcript==
:Every few hours, subwoofer plays throbbing bass for 10 seconds... [With arrow pointing to subwoofer.]
:...then bread crumbs are dispensed into box [With arrow pointing to bread feeder machine.]
:Opening [With arrow pointing to feeder opening shaped like a driver side car window.]
:Local wildlife [With arrows pointing to birds and a squirrel.]
:Protip: Leave this device in your yard for a week, then watch as the problem of loud music from passing cars solves itself.

{{comic discussion}}
[[Category:Biology]]
[[Category:Protip]]
[[Category:Squirrels]]
[[Category:Music]]
[[Category:Animals]]
[[Category:Science]]
[[Category:Psychology]]

Talk:2854: Date Line

2023-11-14T22:40:00Z

NeatNit: devastation and relativity

The 'standard' and '2x' sized images had unexpected sizes, so a Trivia section has been automatically generated, and an imagesize parameter has been added (at half size) to render the image consistently with other comics on this website. --[[User:TheusafBOT|TheusafBOT]] ([[User talk:TheusafBOT|talk]]) 22:56, 13 November 2023 (UTC)

Is it just me or are these size errors becoming more common? What going wrong in the infra?
[[Special:Contributions/172.69.62.90|172.69.62.90]] 22:57, 13 November 2023 (UTC)

:Yeah, and this one came in HUGE. The image size upon loading the comic at xkcd.com was 6642x7838. At first, I thought it was a special comic or an interactive one. But just huge. [[User:Orion205|Orion205]] ([[User talk:Orion205|talk]]) 00:25, 14 November 2023 (UTC)

added an explanation [[Special:Contributions/172.70.174.61|172.70.174.61]] 23:49, 13 November 2023 (UTC)

The IDL might not normally be straight, but when the rocket pulls in it, it will straighten it out. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 00:54, 14 November 2023 (UTC)

The Kentucky State Police resent the implication about their organizational infrastructure.

I like how this comic came out the same day (in UTC+10) as I am studying Earth geometry including the IDL. Nice little coincidence. [[User:OmniDoom|OmniDoom]] ([[User talk:OmniDoom|talk]]) 03:46, 14 November 2023 (UTC)

Why's there a missing line of latitude? [[Special:Contributions/172.68.140.145|172.68.140.145]] 05:47, 14 November 2023 (UTC)
:That is actually a good question. Seems like an error. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 08:01, 14 November 2023 (UTC)
: I would assume the lines that are shown are intended to be the equator, tropics, and arctic circle (antarctic being hidden out of view), being the most commonly known lines of latitude.[[Special:Contributions/172.70.85.151|172.70.85.151]] 12:04, 14 November 2023 (UTC)
:I think it's just the angle. If viewed from the side (instead of diagonally above as in the image), I think they would appear more equidistant. Or maybe they're based on a different projection entirely, that wouldn't be out of character for Randall either. [[Special:Contributions/172.70.46.254|172.70.46.254]] 12:08, 14 November 2023 (UTC)

Even if the lines were actual physical strings/ropes, they appear to be lying right on the earths surface instead of being suspended in mid air. So how would a rocket accidentally get snagged on one? You'd have to purposefully shove the rocket between the earth and the line before launch. [[User:Bischoff|Bischoff]] ([[User talk:Bischoff|talk]]) 08:39, 14 November 2023 (UTC)
:Well, obviously you wouldn't want ships/trains/etc hitting them as they moved longitudes(/latitutudes) or timezones, so they must be held up out of the way by skyhooks. Probably also above plane travel, or we'd see them being snagged quite often...
:Noting that I had to caveat the idea of the Russian launch-site, as NASA seems to be the named agency needing to fix the mess. Could of course be 'Hollywood Exceptionalism', regarding who it is who <s>leads</s> saves the world. Or ''actual'' expertise such as might have actually helped with the Kursk submarine, in a pinch (except that, geoplitically, currently it'd probably take even longer for Russia to deign to request assistance from the US than 23 years ago).
:I also, for brevity, skipped the needless pedantic analysis of typical 'first orbit' trajectories from ''all'' [https://aerospace.csis.org/data/spaceports-of-the-world/ current launch sites], worldwide, so as to work out whether any others might encounter such a North Pacific crossing-point at 'first hit' (after which, it's clearly high enough to not snag again). Depending on launch eccentricity, it's feasible from practically any of them, naturally. [[Special:Contributions/172.69.195.51|172.69.195.51]] 10:37, 14 November 2023 (UTC)

:Maybe it was a submarine launched rocket.[[Special:Contributions/172.70.86.53|172.70.86.53]] 12:06, 14 November 2023 (UTC)

I think the "about 2 in the title text references the Windows approximate download times dialogs - GreyFox [[Special:Contributions/172.71.150.133|172.71.150.133]] 18:31, 14 November 2023 (UTC)
:It's not. They were about to say an absolute time, e.g. "by approximately 12:00" but they realized absolute time is paused so they gave a relative time instead. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 22:39, 14 November 2023 (UTC)

This looks devastating for western Europe and western Africa. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 22:39, 14 November 2023 (UTC)

2803: Geohydrotypography

2023-07-19T10:43:24Z

NeatNit: explain that the text as it appears in the comic is 1.5 billion point, not 12 point.

{{comic
| number = 2803
| date = July 17, 2023
| title = Geohydrotypography
| image = geohydrotypography_2x.png
| imagesize = 339x389px
| noexpand = true
| titletext = The Atlantic is expanding at about 10 ppm (points per month).
}}

==Explanation==
{{incomplete|Created by a LOGOGRAPHOTYPOHYDROGEOIST - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

This comic is another entry in the "[[:Category:My_Hobby|My Hobby]]" series of comics.

{{w|Plate tectonics}} is the understanding that the Earth's lithosphere is divided up into separate 'plates', which carry the continents and (in the case of the Atlantic) are slowly moving apart under geological action that mostly drives the respective coastlines away from the deep centre of the ocean. Here, Randall explains that if the surface of the Atlantic Ocean were covered in a certain size of printed text (as if its surface were a giant sheet of printed paper, which it is not{{citation needed}}), the shifting of the continents would increase the amount of text by about 100 words per second.

[[Randall]] says that his hobby is geohydrotypography, which is a portmanteau of {{w|geology}}, {{w|hydrology}}, and {{w|typography}}. Basically, it means that his hobby is typing on rocks and ocean.

The title text reports the rate of the ocean's expansion, about 40 millimeters per year, in points per month. A point in typography is 1/72 of an inch, or 127/360 =~ 0.3528 millimeters. The expansion sideways would steadily allow more characters on the first line (and thus intermittently more words, 'unwrapping' the first word seen on the next line) and cascading this effect onto every subsequent line spread out vertically along the roughly 13,000km (depending upon your choice of limits) North/South 'height' of the writing medium.

The exact calculation needs various assumptions. Font families of a given well-defined vertical size/separation can each exhibit varying general widths of character, and be subject to various possible degrees of [[kerning]], depending upon what precise choice of text is made (unless using a strictly a fixed-width font). The spacing between successive lines would need to be chosen. The word that does (or does not) have to be wrapped at the first line-break can affect which groups of words may (or may not) need to wrap on subsequent lines, in a cascading effect that can create almost chaotic changes from just a single reassessment. However, the {{w|law of large numbers}} would likely minimize the effect of this variability, such that an estimate from known averages would yield a result with a very small amount of relative error.

The exact extent of the Atlantic Ocean can also be differently interpreted: where it meets the Southern and Arctic oceans, whether to include bordering 'seas' such as the Gulf of Mexico and Mediterranean and Caribbean Seas, what to do where the 'text' may have to cross/break-across islands (e.g., the Bahamas, Azores, etc., some of these being treated as Atlantic boundaries with the comic's relatively much larger size of "ocean text"), possibly even whether to track the precise tidal inundations at the coastlines at any particular moment. All these factors, and more, make it difficult to precisely define the total number of characters (and thus words) that would fit, though the annual increase in the approximate area of the ocean could allow us to assume some approximately greater number of characters (based upon an approximation of their average page-area requirements) which could be divided by the approximate number needed for a general corpus of words (and its spacing) to determine the approximate additional text that could now be added for any given span of time. Knowing Randall, he has used the best approximations that he could find and determined that the possible cumulative errors were not unacceptable.

Note that the text as it appear on the globe in the comic is not 12 point, but instead is close to 1.5 billion point.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[A depiction primarily of the Atlantic Ocean and the surrounding land-masses. The land is black, leaving the oceans and seas white except for the following words written in sixteen lines of text (from just below the tip of Greenland/Arctic Ocean down to slightly above the Falkland Islands/Southern Ocean) that are, for the most part, wrapped between the Atlantic coastline 'margins' (as defined by the Americas on the left and Europe/Africa on the right, or significant island groups:]

:If you
:covered
:the surface of
:the Atlantic Ocean
:with twelve-point
:printed text,
:with the lines
:wrapping at
:the coasts, the
:expansion of
:the ocean basin
:due to plate
:tectonics would
:increase your word
:count by about 100
:words per second.

:[Caption below the panel:]
:My Hobby: Geohydrotypography

{{comic discussion}}

[[Category:My Hobby]]
[[Category:Maps]]
[[Category:Geology]]
[[Category:Language]]

Talk:2802: Fireflies

2023-07-15T11:46:18Z

NeatNit: fatty acid enzyme trick

--
I can't remember another XKCD which has gray-scale figures. -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 01:46, 15 July 2023 (UTC)
:I think 2386: Ten Years also had gray-scale figures, but just for one panel. --[[User:Nixstyx|nixstyx]] ([[User talk:Nixstyx|talk]]) 02:37, 15 July 2023 (UTC)

https://www.usatoday.com/story/news/nation/2022/07/02/fireflies-possible-extinction-across-us/7795410001/ very sad. [[Special:Contributions/172.69.22.175|172.69.22.175]] 02:20, 15 July 2023 (UTC)

another suggestion for “shadow flies”: in certain interpretations of quantum physics entities in other possible worlds are referred to as “shadow ___” (e.g. “shadow photons”).[[Special:Contributions/172.71.142.106|172.71.142.106]] 04:23, 15 July 2023 (UTC)

I expect a visitor flood to [https://shadowfly.com/]. ~ Megan she/her [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 07:24, 15 July 2023 (UTC)

; Starving

I’d love to understand what’s going on with the “starving” comment. Are fireflies starving themselves to get that enzyme to work? [[User:Ptdecker|Ptdecker]] ([[User talk:Ptdecker|talk]]) 08:04, 15 July 2023 (UTC)
:I can't currently see "starving" anywhere. (Old edit?) Unless you misread "They're starting"..? [[Special:Contributions/141.101.99.115|141.101.99.115]]

What's the "fatty acid enzyme trick" that Megan mentions? --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 11:46, 15 July 2023 (UTC)

2712: Gravity

2022-12-17T22:06:03Z

NeatNit: /* Celestial Bodies */ Smash Mouth reference

{{comic
| number = 2712
| date = December 16, 2022
| title = Gravity
| image = gravity_2x.png
| imagesize = 740x700px
| noexpand = true
| titletext = It's a long way down.
}}

*To experience the interactivity, visit the [http://xkcd.com/2712/ original comic].
==Explanation==
{{incomplete|Created by HOTBLACK DESIATO'S TAX RETURNS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this interactive comic, the viewer pilots a small spaceship throughout a vast area in space. The viewer is capable of exploring various bodies and planets within the play area, many containing easter eggs alluding to What If? 2 and previous xkcd comics. The flight mechanics are largely, if not entirely, Newtonian, so the vessel is capable of using the gravity of planets to alter its trajectory or even enter orbit. The spaceship has several indicator circles around it which appear when a gravitational body comes into range, showing the direction towards their center of gravity.

The arrow keys rotate the spaceship and accelerate it forward and backward. On mobile the comic will full screen, pressing either side of the center rotates the spaceship, and pressing in the center accelerates it forward. There is no way to accelerate backward on mobile.

It is fairly easy to fly between planets as long as you pay attention to orbital mechanics don't just floor the accelerator. The background stars show your velocity and orientation relative to the nearest gravity well. If you are having difficulties navigating space, point towards a gravity orb and accelerate for only a few seconds. Wait until the background stars spin wildly, and then reduce your velocity to 0 before genitally <=REALLY?!?? This mistake is too good to correct! :D accelerating towards to object.

Throughout the play area are coins that change the spaceship into different rockets and non-space based vehicles, including humans.

The comic promotes Randall's new book [https://xkcd.com/what-if-2/ What If? 2], which was released in September and is available for purchase. Many of the planets contain references to various What If? articles.

The comic is similar to [[1608: Hoverboard]], which celebrated Thing Explainer instead.

===Celestial Bodies===

The following is an incomplete table of features:

{|class="wikitable sortable"
!
!
!
!
! colspan="4"|References
!
|-
! ID
! Description
! Transcript
! Tiles (X, Y)
! What If
! XKCD
! Movies
! Other
! Explanation
|-
|<code>origin</code>
|'''Starting planet'''
|
|(0, 0)
|
|
|
|
|The starting planet. The player begins on the launch pad in a landed position. Collecting the orbiting cannonball will transform you into a more advanced rocket.
|-
|<code>earth</code>
|'''Earth'''
|
|(27867,-35648)
|
|
|
|
|A planet with among other things; a crane dropping a comet onto a dinosaur, unusually high speed squirrels, Megan inviting Cueball into a pool, a region where the frame rate is intentionally limited, a flagpole, a literal rabbithole referencing the figuratively speaking rabbit hole, someone aiming at a satellite with an arrow, a lake with an eel, the earth-moon firepole, a volcano, two figures being attacked by a third with a sword, two kids playing soccer (Catching the ball will turn the ship into a soccer ball), a farmer on a tractor being stuck in what seems elastic earth, a banana pile, Megan and Cueball digging a hole (in the center of this planet is the "earth's core" referenced below, the Niagara Falls water being redirected into the LHC, Japan(?) leaving earth, a tube to the bottom of the ocean and a reference to everyoneorjustme.com
|-
|
|Earth's core
|
|
|
|
|
|
|[[Cueball]] and [[Megan]] floating in a small space in the center of the planet in inverted rotations.
|-
|<code>europa</code>
|'''Europa'''
|
|(13180, -2540)
|
|
|
|
|Europa, one of Jupiter's many moons (in real life). A broken, icy crust has a single path into its core.
|-
|
|Europa's crust
|"It's so unfair we don't get to compete in EuroVision."
"The region of the solar system where liquid water can exist on the surface is the habitable zone, and the region where it can exist beneath the surface of moons is the Eurozone."

"WHIRRRR"
|
|Y
|
|
|
|Europa's crust, with a single entrance into the core demarcated by an octopus leaving a hole.
Cueball states that Europa is in the Eurozone, a pun on the ''other'' Eurozone, with liquid underneath its surface.

A roomba whirs across the icy crust.

Cueball has a hairdryer and is melting the surface of the crust. A direct reference to [https://what-if.xkcd.com/35/ What If's Hairdryer].
|-
|
|Europa's core
|
|
|
|
|
|
|A watery ocean with octopi looking out into the great unknown using telescopes. This is a reference to octopus's intelligence here on earth! There's also a secret path leading to a book club, through the wreck of the Edmund Fitzgerald.
|-
|<code>b612</code>
|'''B-612'''
|"Asteroid deflection mission to earth. The package is delivered. Commencing planetary threat neutralization."
|(2610,3700)
|
|Y
|
|
|A reference to [https://xkcd.com/618/ Asteroid]. The little prince is having his asteroid blown up as it was heading towards Earth, apparently.
|-
|<code>dogplanet</code>
|'''Dog park planet'''
|
|(1240, 11230)
|
|
|
|
|A planet with a dog park. Covered in dogs, along with dog walkers and some fences. There's a hole being dug by two dogs and a dog bone empty space in the center.
|-
| <code>goodhart</code>
|'''What If? 2 scenario planet'''
|
|(-13300,-3260)
|
|
|
|
|
|-
|
|'''The Sun'''
|
|(-14950, 12080)
|
|
|
|
|Difficult to escape from if you hit the core.
|-
|
|Sun's core
|
|
|Y
|
|
|
|Difficult to escape from. Can be escaped by rotating around the sun until an escape-like velocity could be reached.
|-
|
|'''Soupiter'''
|"I think it's chicken noodle? Hard to tell."
|(-800, -9040)
|Y
|
|
|
|A planet made of soup, with a core. As commented by Cueball, noodle soup. Has several small versions of other planets floating around it.
|-
|<code>nojapan</code>
|'''Earth without Japan'''
|"Something is missing."
|(-7680, -5850)
|Y
|
|
|
|Earth, except it's missing japan.
|-
|<code>japanmoon</code>
|'''Just Japan'''
|
|
|Y
|
|
|
|
|-
|<code>pigeons</code>
|'''A blob labeled "Pigeons"'''
|
|(-9020, -2490)
|Y
|
|
|
|A reference to Chapter 6 of What If? 2, where it would take 1.6 x 10^25 pigeons to lift you and a chair up to the halfway point of Australia's Q1 skyscraper.
|-
|<code>enterprise</code>
|'''Starship Enterprise'''
|
|
|
|
|Y
|
|Star Trek reference
|-
|
|'''Dinosaur planet'''
|<code>qwantz</code>
| (20403,-49559)
|
|
|Y
|
|An homage to [https://www.qwantz.com/ Dinosaur Comics], a webcomic Randall has mentioned several times before. All the dinosaurs on the planet are black-and-white versions of the clip art dinosaurs in that comic. Also references the Jurassic Park movies, in which the long grass depicted is a plot point in later films.
|-
|
|'''What If? 1 scenario planet'''
|
|
|
|
|
|
|
|-
|
|'''Cat blocking traffic flowing through portals'''
|
|
|
|
|
|
|
|-
|
|'''Edge of the Universe'''
|
| ( 6081, 26138 )
|
|
|
|
|It looks like a planet labeled "edge of the universe". Outside the universe, so inside the "edge of the universe planet", is another universe, the bubble universe. Hidden entrance is between 10 and 11 'o clock.
|-
|
|'''A tree larger than the planet it's growing on'''
|
|
|
|Y
|
|
|May be a reference to [https://www.explainxkcd.com/wiki/index.php/2:_Petit_Trees_(sketch) Petit Trees]. More probably, a reference to ''The Little Prince'', a french children's novel about a traveler from a distant asteroid. In the novel, baobab trees are a serious threat to the Prince's home asteroid, as they are so large that their roots would engulf the asteroid entirely. Randall has alluded to The Little Prince numerous times before, especially in what-if articles.
|-
|
|'''Milliways'''
|
|
|
|
|Y
|
|Hitchhiker's guide to the galaxy reference
|-
|
|'''The Great Attractor'''
|
|
|
|Y
|
|
|
|-
|<code>present</code>
|'''Present'''
|"I didn't do any of my Christmas shopping yet because I was too busy drawing tiny planets."
"I'm done with my shopping! I got everyone What if? 2"

"...You got me my own book?"

"Yeah! I figured that since you wrote it, it must be right up your alley."

"It does make a good gift, though. You can get it at xkcd.com/whatif2"

"I got you this present!"

"Is it an angry bobcat?"

"It might not be."
|(22820,-18920)
|
|Y
|
|
|The XKCD cast react to giving each other What if 2? as a present. Gravity at the bottom of the missing quarter of the planet is inescapable. Black Hat gives Cueball a "gift" which he claims "might not be a bobcat", a reference to [[A-Minus-Minus]]
|-
|
|'''Black hole cluster'''
|
|
|
|
|
|
|A cluster of black holes with extremely high gravitational strength, set to the maximum of 2048. Not particularly easy to land on with multiple conflicting gravitational fields, but once landed on, rather difficult to escape.
|-
|<code>remnant</code>
|'''Remnant'''
|"All right, that's close enough"
"Oh no"

{{w|Walkin' on the Sun|"So don't delay, act now, supplies are running out"}}

"In 5 billion years, the Sun will run out of fuel and suffer gigennial burnout."

"The immense gravity of the sun's remnant means that this is the tallest possible skyscraper."
|(19620, 3800)
|
|
|
|
|A stellar remnant, with high gravity (making it difficult to escape, although it's possible to achieve escape velocity by flying sideways). Has various small landmarks, including a "skyscraper" and suspension bridge. There are bombs being dropped from above the planet, with one that seems to be sledding on the planet.
|-
|<code>steerswoman</code>
|'''Steerswoman Planet'''
|"As a Steerswoman, I have to answer any question anyone asks me, or I'm expelled from the order."
"What's one question that you would be unwilling to answer?"
"Oh no."

"Handle this artifact with great care. It contains a magical wizard's potion which the ancients called 'trinitrotoluene'"
|
|
|
|
|
|A reference to the Steerswoman series of books by Rosemary Kirstein. Includes a number of references to the series, including a group of people observing a small object orbiting the planet.
|-
|<code>peeler</code>
|'''Peeler'''
|
|(-9270, 620)
|
|
|
|
|A reference to the question posed by "What If 2: Lose Weight the Slow and Incredibly Difficult Way". A large potato peeler is seen removing the earth's crust.
|}

===Ships===
{|class="wikitable sortable"
|-
! Name
! Description
! Location
! Filename
! Image
|-
|Default
|The starting ship.
|
|ship2
|
|-
| Tintin
|
| On the starting planet, relatively easy to get
| ship-tintin
|
|-
| Figure
|Stick figure
|On Goodhart
|ship-figure
|
|-
| Soccer ball
| Soccer ball shaped ship
| On Earth
|ship-soccerball
|
|-
|Alternative Ship
|Slightly thicker version of default ship
|
|ship1
|}

==Data Dump==

extracted from a JSON blob near the bottom of <code>https://xkcd.com/2712/comic.js</code>.
I believe this to be all the data but i'm not sure. this should probably be on a different page but i'll leave that up to the smart people
<pre style="height:10em;overflow-y:scroll;">
{
"items": {
"coin-cannonball": {
"consumable": "yes",
"effect": "transformship|ship-tintin",
"image": "coin",
"loc": [
359,
-815
],
"size": [
40,
40
]
},
"coin-figure": {
"consumable": "yes",
"effect": "transformship|ship-figure",
"image": "figure",
"loc": [
-15050,
-2984
],
"size": [
40,
40
]
},
"coin-regular": {
"consumable": "yes",
"effect": "transformship|ship2",
"image": "regular",
"loc": [
-29976,
-8077
],
"size": [
40,
40
]
},
"coin-soccerball": {
"consumable": "yes",
"effect": "transformship|ship-soccer",
"image": "soccerball",
"loc": [
15293,
11140
],
"size": [
40,
40
]
}
},
"locations": {
"b612": {
"gravity": 60,
"height": 2048,
"loc": [
2610,
3700
],
"radius": 82,
"width": 2048
},
"dogplanet": {
"gravity": 300,
"height": 2048,
"loc": [
1240,
11230
],
"radius": 337,
"width": 2048
},
"earth": {
"gravity": 21000,
"height": 16384,
"loc": [
14360,
14360
],
"radius": 3275,
"width": 16384
},
"enterprise": {
"gravity": 200,
"height": 2048,
"loc": [
1010,
30440
],
"radius": 160,
"width": 2048
},
"europa": {
"gravity": 5000,
"height": 8192,
"loc": [
13180,
-2540
],
"radius": 1625,
"width": 8192
},
"goodhart": {
"gravity": 5000,
"height": 8192,
"loc": [
-13300,
-3260
],
"radius": 1625,
"width": 8192
},
"greatattractor": {
"gravity": 450000,
"height": 4096,
"loc": [
-297000,
-125000
],
"radius": 800,
"width": 4096
},
"japanmoon": {
"gravity": 50,
"height": 2048,
"loc": [
-5930,
-5800
],
"radius": 67,
"width": 2048
},
"maw1": {
"gravity": 2000,
"height": 2048,
"loc": [
-31576,
-9077
],
"radius": 18,
"width": 2048
},
"maw10": {
"gravity": 2000,
"height": 2048,
"loc": [
-29516,
-6321
],
"radius": 15,
"width": 2048
},
"maw11": {
"gravity": 2000,
"height": 2048,
"loc": [
-29381,
-6248
],
"radius": 12,
"width": 2048
},
"maw12": {
"gravity": 2000,
"height": 2048,
"loc": [
-26832,
-5928
],
"radius": 18,
"width": 2048
},
"maw13": {
"gravity": 2000,
"height": 2048,
"loc": [
-31743,
-4724
],
"radius": 18,
"width": 2048
},
"maw14": {
"gravity": 2000,
"height": 2048,
"loc": [
-26071,
-10824
],
"radius": 18,
"width": 2048
},
"maw2": {
"gravity": 2000,
"height": 2048,
"loc": [
-30211,
-8831
],
"radius": 18,
"width": 2048
},
"maw3": {
"gravity": 2000,
"height": 2048,
"loc": [
-27975,
-8266
],
"radius": 18,
"width": 2048
},
"maw4": {
"gravity": 2000,
"height": 2048,
"loc": [
-29546,
-7971
],
"radius": 18,
"width": 2048
},
"maw5": {
"gravity": 2000,
"height": 2048,
"loc": [
-29791,
-7631
],
"radius": 18,
"width": 2048
},
"maw6": {
"gravity": 2000,
"height": 2048,
"loc": [
-29328,
-7575
],
"radius": 18,
"width": 2048
},
"maw7": {
"gravity": 2000,
"height": 2048,
"loc": [
-29700,
-7426
],
"radius": 18,
"width": 2048
},
"maw8": {
"gravity": 2000,
"height": 2048,
"loc": [
-29165,
-7160
],
"radius": 18,
"width": 2048
},
"maw9": {
"gravity": 2000,
"height": 2048,
"loc": [
-30772,
-6910
],
"radius": 18,
"width": 2048
},
"nojapan": {
"gravity": 80,
"height": 2048,
"loc": [
-7680,
-5850
],
"radius": 200,
"width": 2048
},
"origin": {
"gravity": 1500,
"height": 4096,
"loc": [
0,
0
],
"radius": 630,
"width": 4096
},
"outside": {
"gravity": 200,
"height": 16384,
"loc": [
0,
-14500
],
"radius": 125,
"width": 16384
},
"peeler": {
"gravity": 50,
"height": 2048,
"loc": [
-9270,
620
],
"radius": 40,
"width": 2048
},
"pigeons": {
"gravity": 100,
"height": 2048,
"loc": [
-9020,
-2490
],
"radius": 160,
"width": 2048
},
"present": {
"gravity": 300,
"height": 2048,
"loc": [
22820,
-18920
],
"radius": 195,
"width": 2048
},
"qwantz": {
"gravity": 1400,
"height": 4096,
"loc": [
11060,
24870
],
"radius": 850,
"width": 4096
},
"remnant": {
"gravity": 9000,
"height": 4096,
"loc": [
19620,
3800
],
"radius": 537,
"width": 4096
},
"roads": {
"gravity": 40,
"height": 16384,
"loc": [
13240,
-11510
],
"radius": 30,
"width": 16384
},
"soupiter": {
"gravity": 1300,
"height": 4096,
"loc": [
-8000,
-9040
],
"radius": 812,
"width": 4096
},
"steerswoman": {
"gravity": 600,
"height": 4096,
"loc": [
-35070,
-2500
],
"radius": 520,
"width": 4096
},
"sun": {
"gravity": 9000,
"height": 16384,
"loc": [
-14950,
12080
],
"radius": 540,
"width": 16384
}
},
"player": {
"animation": "player.png",
"animcount": 4,
"startloc": [
0,
750
],
"targetheight": 59
},
"tile_height": 1024,
"tile_source": "tile",
"tile_width": 1024
}

</pre>

==Hacks==
'''Modes''' are activated by opening the Javascript Console (F12 [Or Command-Alt-I in most browsers under Mac OS X] to open Developer Tools, then Console tab) and writing corresponding commands. 
'''Click to expand:''' 

<div class="mw-collapsible mw-collapsed leftAlign" style="width:100%">
 
*'''Speedhack:''' <code>ship.engines = "warp"</code> - Speed hacking, sets speed to 1.4x. set to "standard" to reset to normal speed
*'''Teleport to planet:''' <code>[Comic.voyager.pos.x, Comic.voyager.pos.y] = Comic.planetRects.'''''origin'''''.slice(0,2)</code> - teleport near a planet, in this example near earth. You'll still have to fly a bit towards the nearest planet to reach it. Replace '''''origin''''' with the ID of the planet you want to go to, from the table above.
*'''Teleport to coordinate:''' <code>[Comic.voyager.pos.x, Comic.voyager.pos.y] = '''''[0, -2000]'''''</code> - teleport to an exact coordinate. <code>[0, -2000]</code> happens to take you to the starting area.
*'''Chaos Mode:''' <code>ship.engines="infinite improbability drive"</code> - Seems to randomly teleports the ship
*'''Insta Death:''' <code>ship.shields = false</code> - Kill the player if they land on a planet, the code never sets it to false, so it seems to be always true.
*'''No Clip:''' <code>noclip = true</code> - Enables noclip.
*'''Select ship:''' <code>Comic.ship = "ship-tintin"</code> - Select ship (use filename from list of ships)
*'''Autorotate:''' <code>Comic.cameraRotation = false</code> - View does not rotate with ship)
*'''Goggles:''' <code>ze.goggles()</code> - returns a warning: "they do nothing!". This is a reference to Hoverboard, where ''ze.goggles()'' would give you the ability to see false walls.
</div>
 

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

Welcome!

To celebrate the world of what if? 2, here is your very own planet to explore!

Give someone the science question-and-answer book what if? 2 for Christmas:
xkcd.com/whatif2

{{comic discussion}}
[[Category:Space]]
[[Category:Book promotion]]
[[Category:Interactive comics]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Black Hat]]
[[Category:Bobcats]]

2712: Gravity

2022-12-17T21:31:13Z

NeatNit: /* Hacks */ clarify teleport to planet, add teleport to coordinate

{{comic
| number = 2712
| date = December 16, 2022
| title = Gravity
| image = gravity_2x.png
| imagesize = 740x700px
| noexpand = true
| titletext = It's a long way down.
}}

*To experience the interactivity, visit the [http://xkcd.com/2712/ original comic].
==Explanation==
{{incomplete|Created by HOTBLACK DESIATO'S TAX RETURNS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this interactive comic, the viewer pilots a small spaceship throughout a vast area in space. The viewer is capable of exploring various bodies and planets within the play area, many containing easter eggs alluding to What If? 2 and previous xkcd comics. The flight mechanics are largely, if not entirely, Newtonian, so the vessel is capable of using the gravity of planets to alter its trajectory or even enter orbit. The spaceship has several indicator circles around it which appear when a gravitational body comes into range, showing the direction towards their center of gravity.

The arrow keys rotate the spaceship and accelerate it forward and backward. On mobile the comic will full screen, pressing either side of the center rotates the spaceship, and pressing in the center accelerates it forward. There is no way to accelerate backward on mobile.

It is fairly easy to fly between planets as long as you pay attention to orbital mechanics don't just floor the accelerator. The background stars show your velocity and orientation relative to the nearest gravity well. If you are having difficulties navigating space, point towards a gravity orb and accelerate for only a few seconds. Wait until the background stars spin wildly, and then reduce your velocity to 0 before genitally accelerating towards to object.

Throughout the play area are coins that change the spaceship into different rockets and non-space based vehicles, including humans.

The comic promotes Randall's new book [https://xkcd.com/what-if-2/ What If? 2], which was released in September and is available for purchase. Many of the planets contain references to various What If? articles.

The comic is similar to [[1608: Hoverboard]], which celebrated Thing Explainer instead.

===Celestial Bodies===

The following is an incomplete table of features:

{|class="wikitable sortable"
!
!
!
!
! colspan="4"|References
!
|-
! ID
! Description
! Transcript
! Tiles (X, Y)
! What If
! XKCD
! Movies
! Other
! Explanation
|-
|<code>origin</code>
|'''Starting planet'''
|
|(0, 0)
|
|
|
|
|The starting planet. The player begins on the launch pad in a landed position. Collecting the orbiting cannonball will transform you into a more advanced rocket.
|-
|<code>earth</code>
|'''Earth'''
|
|(27867,-35648)
|
|
|
|
|A planet with among other things; a crane dropping a comet onto a dinosaur, unusually high speed squirrels, Megan inviting Cueball into a pool, a region where the frame rate is intentionally limited, a flagpole, a literal rabbithole referencing the figuratively speaking rabbit hole, someone aiming at a satellite with an arrow, a lake with an eel, the earth-moon firepole, a volcano, two figures being attacked by a third with a sword, two kids playing soccer (Catching the ball will turn the ship into a soccer ball), a farmer on a tractor being stuck in what seems elastic earth, a banana pile, Megan and Cueball digging a hole (in the center of this planet is the "earth's core" referenced below, the Niagara Falls water being redirected into the LHC, Japan(?) leaving earth, a tube to the bottom of the ocean and a reference to everyoneorjustme.com
|-
|
|Earth's core
|
|
|
|
|
|
|[[Cueball]] and [[Megan]] floating in a small space in the center of the planet in inverted rotations.
|-
|<code>europa</code>
|'''Europa'''
|
|(13180, -2540)
|
|
|
|
|Europa, one of Jupiter's many moons (in real life). A broken, icy crust has a single path into its core.
|-
|
|Europa's crust
|"It's so unfair we don't get to compete in EuroVision."
"The region of the solar system where liquid water can exist on the surface is the habitable zone, and the region where it can exist beneath the surface of moons is the Eurozone."

"WHIRRRR"
|
|Y
|
|
|
|Europa's crust, with a single entrance into the core demarcated by an octopus leaving a hole.
Cueball states that Europa is in the Eurozone, a pun on the ''other'' Eurozone, with liquid underneath its surface.

A roomba whirs across the icy crust.

Cueball has a hairdryer and is melting the surface of the crust. A direct reference to [https://what-if.xkcd.com/35/ What If's Hairdryer].
|-
|
|Europa's core
|
|
|
|
|
|
|A watery ocean with octopi looking out into the great unknown using telescopes. This is a reference to octopus's intelligence here on earth! There's also a secret path leading to a book club, through the wreck of the Edmund Fitzgerald.
|-
|<code>b612</code>
|'''B-612'''
|"Asteroid deflection mission to earth. The package is delivered. Commencing planetary threat neutralization."
|(2610,3700)
|
|Y
|
|
|A reference to [https://xkcd.com/618/ Asteroid]. The little prince is having his asteroid blown up as it was heading towards Earth, apparently.
|-
|<code>dogplanet</code>
|'''Dog park planet'''
|
|(1240, 11230)
|
|
|
|
|A planet with a dog park. Covered in dogs, along with dog walkers and some fences. There's a hole being dug by two dogs and a dog bone empty space in the center.
|-
|
|'''What If? 2 scenario planet'''
|
|
|
|
|
|
|
|-
|
|'''The Sun'''
|
|(-14950, 12080)
|
|
|
|
|Difficult to escape from if you hit the core.
|-
|
|Sun's core
|
|
|Y
|
|
|
|Difficult to escape from. Can be escaped by rotating around the sun until an escape-like velocity could be reached.
|-
|
|'''Soupiter'''
|"I think it's chicken noodle? Hard to tell."
|(-800, -9040)
|Y
|
|
|
|A planet made of soup, with a core. As commented by Cueball, noodle soup. Has several small versions of other planets floating around it.
|-
|<code>nojapan</code>
|'''Earth without Japan'''
|"Something is missing."
|(-7680, -5850)
|Y
|
|
|
|Earth, except it's missing japan.
|-
|<code>japanmoon</code>
|'''Just Japan'''
|
|
|Y
|
|
|
|
|-
|<code>pigeons</code>
|'''A blob labeled "Pigeons"'''
|
|(-9020, -2490)
|Y
|
|
|
|A reference to Chapter 6 of What If? 2, where it would take 1.6 x 10^25 pigeons to lift you and a chair up to the halfway point of Australia's Q1 skyscraper.
|-
|<code>enterprise</code>
|'''Starship Enterprise'''
|
|
|
|
|Y
|
|Star Trek reference
|-
|
|'''Dinosaur planet'''
|<code>qwantz</code>
| (20403,-49559)
|
|
|Y
|
|An homage to [https://www.qwantz.com/ Dinosaur Comics], a webcomic Randall has mentioned several times before. All the dinosaurs on the planet are black-and-white versions of the clip art dinosaurs in that comic. Also references the Jurassic Park movies, in which the long grass depicted is a plot point in later films.
|-
|
|'''What If? 1 scenario planet'''
|
|
|
|
|
|
|
|-
|
|'''Cat blocking traffic flowing through portals'''
|
|
|
|
|
|
|
|-
|
|'''Edge of the Universe'''
|
| ( 6081, 26138 )
|
|
|
|
|It looks like a planet labeled "edge of the universe". Outside the universe, so inside the "edge of the universe planet", is another universe, the bubble universe. Hidden entrance is between 10 and 11 'o clock.
|-
|
|'''A tree larger than the planet it's growing on'''
|
|
|
|Y
|
|
|May be a reference to [https://www.explainxkcd.com/wiki/index.php/2:_Petit_Trees_(sketch) Petit Trees]. More probably, a reference to ''The Little Prince'', a french children's novel about a traveler from a distant asteroid. In the novel, baobab trees are a serious threat to the Prince's home asteroid, as they are so large that their roots would engulf the asteroid entirely. Randall has alluded to The Little Prince numerous times before, especially in what-if articles.
|-
|
|'''Milliways'''
|
|
|
|
|Y
|
|Hitchhiker's guide to the galaxy reference
|-
|
|'''The Great Attractor'''
|
|
|
|Y
|
|
|
|-
|<code>present</code>
|'''Present'''
|"I didn't do any of my Christmas shopping yet because I was too busy drawing tiny planets."
"I'm done with my shopping! I got everyone What if? 2"

"...You got me my own book?"

"Yeah! I figured that since you wrote it, it must be right up your alley."

"It does make a good gift, though. You can get it at xkcd.com/whatif2"

"I got you this present!"

"Is it an angry bobcat?"

"It might not be."
|(22820,-18920)
|
|Y
|
|
|The XKCD cast react to giving each other What if 2? as a present. Gravity at the bottom of the missing quarter of the planet is inescapable. Black Hat gives Cueball a "gift" which he claims "might not be a bobcat", a reference to [[A-Minus-Minus]]
|-
|
|'''Black hole cluster'''
|
|
|
|
|
|
|A cluster of black holes with extremely high gravitational strength, set to the maximum of 2048. Not particularly easy to land on with multiple conflicting gravitational fields, but once landed on, rather difficult to escape.
|-
|<code>remnant</code>
|'''Remnant'''
|"All right, that's close enough"
"Oh no"

"So don't delay, act now, supplies are running out"

"In 5 billion years, the Sun will run out of fuel and suffer gigennial burnout."

"The immense gravity of the sun's remnant means that this is the tallest possible skyscraper."
|(19620, 3800)
|
|
|
|
|A stellar remnant, with high gravity (making it difficult to escape, although it's possible to achieve escape velocity by flying sideways). Has various small landmarks, including a "skyscraper" and suspension bridge. There are bombs being dropped from above the planet, with one that seems to be sledding on the planet.
|-
|<code>steerswoman</code>
|'''Steerswoman Planet'''
|"As a Steerswoman, I have to answer any question anyone asks me, or I'm expelled from the order."
"What's one question that you would be unwilling to answer?"
"Oh no."

"Handle this artifact with great care. It contains a magical wizard's potion which the ancients called 'trinitrotoluene'"
|
|
|
|
|
|A reference to the Steerswoman series of books by Rosemary Kirstein. Includes a number of references to the series, including a group of people observing a small object orbiting the planet.
|}

===Ships===
{|class="wikitable sortable"
|-
! Name
! Description
! Location
! Filename
! Image
|-
|Default
|The starting ship.
|
|ship2
|
|-
| Tintin
|
| On the starting planet, relatively easy to get
| ship-tintin
|
|-
| Figure
|Stick figure
|On Goodhart
|ship-figure
|
|-
| Soccer ball
| Soccer ball shaped ship
| On Earth
|
|ship-soccerball
|
|-
|Alternative Ship
|Slightly thicker version of default ship
|
|ship1
|}

==Data Dump==

extracted from a JSON blob near the bottom of <code>https://xkcd.com/2712/comic.js</code>.
I believe this to be all the data but i'm not sure. this should probably be on a different page but i'll leave that up to the smart people
<pre style="height:10em;overflow-y:scroll;">
{
"items": {
"coin-cannonball": {
"consumable": "yes",
"effect": "transformship|ship-tintin",
"image": "coin",
"loc": [
359,
-815
],
"size": [
40,
40
]
},
"coin-figure": {
"consumable": "yes",
"effect": "transformship|ship-figure",
"image": "figure",
"loc": [
-15050,
-2984
],
"size": [
40,
40
]
},
"coin-regular": {
"consumable": "yes",
"effect": "transformship|ship2",
"image": "regular",
"loc": [
-29976,
-8077
],
"size": [
40,
40
]
},
"coin-soccerball": {
"consumable": "yes",
"effect": "transformship|ship-soccer",
"image": "soccerball",
"loc": [
15293,
11140
],
"size": [
40,
40
]
}
},
"locations": {
"b612": {
"gravity": 60,
"height": 2048,
"loc": [
2610,
3700
],
"radius": 82,
"width": 2048
},
"dogplanet": {
"gravity": 300,
"height": 2048,
"loc": [
1240,
11230
],
"radius": 337,
"width": 2048
},
"earth": {
"gravity": 21000,
"height": 16384,
"loc": [
14360,
14360
],
"radius": 3275,
"width": 16384
},
"enterprise": {
"gravity": 200,
"height": 2048,
"loc": [
1010,
30440
],
"radius": 160,
"width": 2048
},
"europa": {
"gravity": 5000,
"height": 8192,
"loc": [
13180,
-2540
],
"radius": 1625,
"width": 8192
},
"goodhart": {
"gravity": 5000,
"height": 8192,
"loc": [
-13300,
-3260
],
"radius": 1625,
"width": 8192
},
"greatattractor": {
"gravity": 450000,
"height": 4096,
"loc": [
-297000,
-125000
],
"radius": 800,
"width": 4096
},
"japanmoon": {
"gravity": 50,
"height": 2048,
"loc": [
-5930,
-5800
],
"radius": 67,
"width": 2048
},
"maw1": {
"gravity": 2000,
"height": 2048,
"loc": [
-31576,
-9077
],
"radius": 18,
"width": 2048
},
"maw10": {
"gravity": 2000,
"height": 2048,
"loc": [
-29516,
-6321
],
"radius": 15,
"width": 2048
},
"maw11": {
"gravity": 2000,
"height": 2048,
"loc": [
-29381,
-6248
],
"radius": 12,
"width": 2048
},
"maw12": {
"gravity": 2000,
"height": 2048,
"loc": [
-26832,
-5928
],
"radius": 18,
"width": 2048
},
"maw13": {
"gravity": 2000,
"height": 2048,
"loc": [
-31743,
-4724
],
"radius": 18,
"width": 2048
},
"maw14": {
"gravity": 2000,
"height": 2048,
"loc": [
-26071,
-10824
],
"radius": 18,
"width": 2048
},
"maw2": {
"gravity": 2000,
"height": 2048,
"loc": [
-30211,
-8831
],
"radius": 18,
"width": 2048
},
"maw3": {
"gravity": 2000,
"height": 2048,
"loc": [
-27975,
-8266
],
"radius": 18,
"width": 2048
},
"maw4": {
"gravity": 2000,
"height": 2048,
"loc": [
-29546,
-7971
],
"radius": 18,
"width": 2048
},
"maw5": {
"gravity": 2000,
"height": 2048,
"loc": [
-29791,
-7631
],
"radius": 18,
"width": 2048
},
"maw6": {
"gravity": 2000,
"height": 2048,
"loc": [
-29328,
-7575
],
"radius": 18,
"width": 2048
},
"maw7": {
"gravity": 2000,
"height": 2048,
"loc": [
-29700,
-7426
],
"radius": 18,
"width": 2048
},
"maw8": {
"gravity": 2000,
"height": 2048,
"loc": [
-29165,
-7160
],
"radius": 18,
"width": 2048
},
"maw9": {
"gravity": 2000,
"height": 2048,
"loc": [
-30772,
-6910
],
"radius": 18,
"width": 2048
},
"nojapan": {
"gravity": 80,
"height": 2048,
"loc": [
-7680,
-5850
],
"radius": 200,
"width": 2048
},
"origin": {
"gravity": 1500,
"height": 4096,
"loc": [
0,
0
],
"radius": 630,
"width": 4096
},
"outside": {
"gravity": 200,
"height": 16384,
"loc": [
0,
-14500
],
"radius": 125,
"width": 16384
},
"peeler": {
"gravity": 50,
"height": 2048,
"loc": [
-9270,
620
],
"radius": 40,
"width": 2048
},
"pigeons": {
"gravity": 100,
"height": 2048,
"loc": [
-9020,
-2490
],
"radius": 160,
"width": 2048
},
"present": {
"gravity": 300,
"height": 2048,
"loc": [
22820,
-18920
],
"radius": 195,
"width": 2048
},
"qwantz": {
"gravity": 1400,
"height": 4096,
"loc": [
11060,
24870
],
"radius": 850,
"width": 4096
},
"remnant": {
"gravity": 9000,
"height": 4096,
"loc": [
19620,
3800
],
"radius": 537,
"width": 4096
},
"roads": {
"gravity": 40,
"height": 16384,
"loc": [
13240,
-11510
],
"radius": 30,
"width": 16384
},
"soupiter": {
"gravity": 1300,
"height": 4096,
"loc": [
-8000,
-9040
],
"radius": 812,
"width": 4096
},
"steerswoman": {
"gravity": 600,
"height": 4096,
"loc": [
-35070,
-2500
],
"radius": 520,
"width": 4096
},
"sun": {
"gravity": 9000,
"height": 16384,
"loc": [
-14950,
12080
],
"radius": 540,
"width": 16384
}
},
"player": {
"animation": "player.png",
"animcount": 4,
"startloc": [
0,
750
],
"targetheight": 59
},
"tile_height": 1024,
"tile_source": "tile",
"tile_width": 1024
}

</pre>

==Hacks==
'''Modes''' are activated by opening the Javascript Console (F12 [Or Command-Alt-I in most browsers under Mac OS X] to open Developer Tools, then Console tab) and writing corresponding commands. 
'''Click to expand:''' 

<div class="mw-collapsible mw-collapsed leftAlign" style="width:100%">
 
*'''Speedhack:''' <code>ship.engines = "warp"</code> - Speed hacking, sets speed to 1.4x. set to "standard" to reset to normal speed
*'''Teleport to planet:''' <code>[Comic.voyager.pos.x, Comic.voyager.pos.y] = Comic.planetRects.'''''origin'''''.slice(0,2)</code> - teleport near a planet, in this example near earth. You'll still have to fly a bit towards the nearest planet to reach it. Replace '''''origin''''' with the ID of the planet you want to go to, from the table above.
*'''Teleport to coordinate:''' <code>[Comic.voyager.pos.x, Comic.voyager.pos.y] = '''''[0, -2000]'''''</code> - teleport to an exact coordinate. <code>[0, -2000]</code> happens to take you to the starting area.
*'''Chaos Mode:''' <code>ship.engines="infinite improbability drive"</code> - Seems to randomly teleports the ship
*'''Insta Death:''' <code>ship.shields = false</code> - Kill the player if they land on a planet, the code never sets it to false, so it seems to be always true.
*'''No Clip:''' <code>noclip = true</code> - Enables noclip.
*'''Select ship:''' <code>Comic.ship = "ship-tintin"</code> - Select ship (use filename from list of ships)
*'''Autorotate:''' <code>Comic.cameraRotation = false</code> - View does not rotate with ship)
*'''Goggles:''' <code>ze.goggles()</code> - returns a warning: "they do nothing!". This is a reference to Hoverboard, where ''ze.goggles()'' would give you the ability to see false walls.
</div>
 

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

Welcome!

To celebrate the world of what if? 2, here is your very own planet to explore!

Give someone the science question-and-answer book what if? 2 for Christmas:
xkcd.com/whatif2

{{comic discussion}}
[[Category:Space]]
[[Category:Book promotion]]
[[Category:Interactive comics]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Black Hat]]
[[Category:Bobcats]]

2712: Gravity

2022-12-17T21:23:50Z

NeatNit: /* Celestial Bodies */ add ID column and fill in some of the rows

{{comic
| number = 2712
| date = December 16, 2022
| title = Gravity
| image = gravity_2x.png
| imagesize = 740x700px
| noexpand = true
| titletext = It's a long way down.
}}

*To experience the interactivity, visit the [http://xkcd.com/2712/ original comic].
==Explanation==
{{incomplete|Created by HOTBLACK DESIATO'S TAX RETURNS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this interactive comic, the viewer pilots a small spaceship throughout a vast area in space. The viewer is capable of exploring various bodies and planets within the play area, many containing easter eggs alluding to What If? 2 and previous xkcd comics. The flight mechanics are largely, if not entirely, Newtonian, so the vessel is capable of using the gravity of planets to alter its trajectory or even enter orbit. The spaceship has several indicator circles around it which appear when a gravitational body comes into range, showing the direction towards their center of gravity.

The arrow keys rotate the spaceship and accelerate it forward and backward. On mobile the comic will full screen, pressing either side of the center rotates the spaceship, and pressing in the center accelerates it forward. There is no way to accelerate backward on mobile.

It is fairly easy to fly between planets as long as you pay attention to orbital mechanics don't just floor the accelerator. The background stars show your velocity and orientation relative to the nearest gravity well. If you are having difficulties navigating space, point towards a gravity orb and accelerate for only a few seconds. Wait until the background stars spin wildly, and then reduce your velocity to 0 before genitally accelerating towards to object.

Throughout the play area are coins that change the spaceship into different rockets and non-space based vehicles, including humans.

The comic promotes Randall's new book [https://xkcd.com/what-if-2/ What If? 2], which was released in September and is available for purchase. Many of the planets contain references to various What If? articles.

The comic is similar to [[1608: Hoverboard]], which celebrated Thing Explainer instead.

===Celestial Bodies===

The following is an incomplete table of features:

{|class="wikitable sortable"
!
!
!
!
! colspan="4"|References
!
|-
! ID
! Description
! Transcript
! Tiles (X, Y)
! What If
! XKCD
! Movies
! Other
! Explanation
|-
|<code>origin</code>
|'''Starting planet'''
|
|(0, 0)
|
|
|
|
|The starting planet. The player begins on the launch pad in a landed position. Collecting the orbiting cannonball will transform you into a more advanced rocket.
|-
|<code>earth</code>
|'''Earth'''
|
|(27867,-35648)
|
|
|
|
|A planet with among other things; a crane dropping a comet onto a dinosaur, unusually high speed squirrels, Megan inviting Cueball into a pool, a region where the frame rate is intentionally limited, a flagpole, a literal rabbithole referencing the figuratively speaking rabbit hole, someone aiming at a satellite with an arrow, a lake with an eel, the earth-moon firepole, a volcano, two figures being attacked by a third with a sword, two kids playing soccer (Catching the ball will turn the ship into a soccer ball), a farmer on a tractor being stuck in what seems elastic earth, a banana pile, Megan and Cueball digging a hole (in the center of this planet is the "earth's core" referenced below, the Niagara Falls water being redirected into the LHC, Japan(?) leaving earth, a tube to the bottom of the ocean and a reference to everyoneorjustme.com
|-
|
|Earth's core
|
|
|
|
|
|
|[[Cueball]] and [[Megan]] floating in a small space in the center of the planet in inverted rotations.
|-
|<code>europa</code>
|'''Europa'''
|
|(13180, -2540)
|
|
|
|
|Europa, one of Jupiter's many moons (in real life). A broken, icy crust has a single path into its core.
|-
|
|Europa's crust
|"It's so unfair we don't get to compete in EuroVision."
"The region of the solar system where liquid water can exist on the surface is the habitable zone, and the region where it can exist beneath the surface of moons is the Eurozone."

"WHIRRRR"
|
|Y
|
|
|
|Europa's crust, with a single entrance into the core demarcated by an octopus leaving a hole.
Cueball states that Europa is in the Eurozone, a pun on the ''other'' Eurozone, with liquid underneath its surface.

A roomba whirs across the icy crust.

Cueball has a hairdryer and is melting the surface of the crust. A direct reference to [https://what-if.xkcd.com/35/ What If's Hairdryer].
|-
|
|Europa's core
|
|
|
|
|
|
|A watery ocean with octopi looking out into the great unknown using telescopes. This is a reference to octopus's intelligence here on earth! There's also a secret path leading to a book club, through the wreck of the Edmund Fitzgerald.
|-
|<code>b612</code>
|'''B-612'''
|"Asteroid deflection mission to earth. The package is delivered. Commencing planetary threat neutralization."
|(2610,3700)
|
|Y
|
|
|A reference to [https://xkcd.com/618/ Asteroid]. The little prince is having his asteroid blown up as it was heading towards Earth, apparently.
|-
|<code>dogplanet</code>
|'''Dog park planet'''
|
|(1240, 11230)
|
|
|
|
|A planet with a dog park. Covered in dogs, along with dog walkers and some fences. There's a hole being dug by two dogs and a dog bone empty space in the center.
|-
|
|'''What If? 2 scenario planet'''
|
|
|
|
|
|
|
|-
|
|'''The Sun'''
|
|(-14950, 12080)
|
|
|
|
|Difficult to escape from if you hit the core.
|-
|
|Sun's core
|
|
|Y
|
|
|
|Difficult to escape from. Can be escaped by rotating around the sun until an escape-like velocity could be reached.
|-
|
|'''Soupiter'''
|"I think it's chicken noodle? Hard to tell."
|(-800, -9040)
|Y
|
|
|
|A planet made of soup, with a core. As commented by Cueball, noodle soup. Has several small versions of other planets floating around it.
|-
|<code>nojapan</code>
|'''Earth without Japan'''
|"Something is missing."
|(-7680, -5850)
|Y
|
|
|
|Earth, except it's missing japan.
|-
|<code>japanmoon</code>
|'''Just Japan'''
|
|
|Y
|
|
|
|
|-
|<code>pigeons</code>
|'''A blob labeled "Pigeons"'''
|
|(-9020, -2490)
|Y
|
|
|
|A reference to Chapter 6 of What If? 2, where it would take 1.6 x 10^25 pigeons to lift you and a chair up to the halfway point of Australia's Q1 skyscraper.
|-
|<code>enterprise</code>
|'''Starship Enterprise'''
|
|
|
|
|Y
|
|Star Trek reference
|-
|
|'''Dinosaur planet'''
|<code>qwantz</code>
| (20403,-49559)
|
|
|Y
|
|An homage to [https://www.qwantz.com/ Dinosaur Comics], a webcomic Randall has mentioned several times before. All the dinosaurs on the planet are black-and-white versions of the clip art dinosaurs in that comic. Also references the Jurassic Park movies, in which the long grass depicted is a plot point in later films.
|-
|
|'''What If? 1 scenario planet'''
|
|
|
|
|
|
|
|-
|
|'''Cat blocking traffic flowing through portals'''
|
|
|
|
|
|
|
|-
|
|'''Edge of the Universe'''
|
| ( 6081, 26138 )
|
|
|
|
|It looks like a planet labeled "edge of the universe". Outside the universe, so inside the "edge of the universe planet", is another universe, the bubble universe. Hidden entrance is between 10 and 11 'o clock.
|-
|
|'''A tree larger than the planet it's growing on'''
|
|
|
|Y
|
|
|May be a reference to [https://www.explainxkcd.com/wiki/index.php/2:_Petit_Trees_(sketch) Petit Trees]. More probably, a reference to ''The Little Prince'', a french children's novel about a traveler from a distant asteroid. In the novel, baobab trees are a serious threat to the Prince's home asteroid, as they are so large that their roots would engulf the asteroid entirely. Randall has alluded to The Little Prince numerous times before, especially in what-if articles.
|-
|
|'''Milliways'''
|
|
|
|
|Y
|
|Hitchhiker's guide to the galaxy reference
|-
|
|'''The Great Attractor'''
|
|
|
|Y
|
|
|
|-
|<code>present</code>
|'''Present'''
|"I didn't do any of my Christmas shopping yet because I was too busy drawing tiny planets."
"I'm done with my shopping! I got everyone What if? 2"

"...You got me my own book?"

"Yeah! I figured that since you wrote it, it must be right up your alley."

"It does make a good gift, though. You can get it at xkcd.com/whatif2"

"I got you this present!"

"Is it an angry bobcat?"

"It might not be."
|(22820,-18920)
|
|Y
|
|
|The XKCD cast react to giving each other What if 2? as a present. Gravity at the bottom of the missing quarter of the planet is inescapable. Black Hat gives Cueball a "gift" which he claims "might not be a bobcat", a reference to [[A-Minus-Minus]]
|-
|
|'''Black hole cluster'''
|
|
|
|
|
|
|A cluster of black holes with extremely high gravitational strength, set to the maximum of 2048. Not particularly easy to land on with multiple conflicting gravitational fields, but once landed on, rather difficult to escape.
|-
|<code>remnant</code>
|'''Remnant'''
|"All right, that's close enough"
"Oh no"

"So don't delay, act now, supplies are running out"

"In 5 billion years, the Sun will run out of fuel and suffer gigennial burnout."

"The immense gravity of the sun's remnant means that this is the tallest possible skyscraper."
|(19620, 3800)
|
|
|
|
|A stellar remnant, with high gravity (making it difficult to escape, although it's possible to achieve escape velocity by flying sideways). Has various small landmarks, including a "skyscraper" and suspension bridge. There are bombs being dropped from above the planet, with one that seems to be sledding on the planet.
|-
|<code>steerswoman</code>
|'''Steerswoman Planet'''
|"As a Steerswoman, I have to answer any question anyone asks me, or I'm expelled from the order."
"What's one question that you would be unwilling to answer?"
"Oh no."

"Handle this artifact with great care. It contains a magical wizard's potion which the ancients called 'trinitrotoluene'"
|
|
|
|
|
|A reference to the Steerswoman series of books by Rosemary Kirstein. Includes a number of references to the series, including a group of people observing a small object orbiting the planet.
|}

===Ships===
{|class="wikitable sortable"
|-
! Name
! Description
! Location
! Filename
! Image
|-
|Default
|The starting ship.
|
|ship2
|
|-
| Tintin
|
| On the starting planet, relatively easy to get
| ship-tintin
|
|-
| Figure
|Stick figure
|On Goodhart
|ship-figure
|
|-
| Soccer ball
| Soccer ball shaped ship
| On Earth
|
|ship-soccerball
|
|-
|Alternative Ship
|Slightly thicker version of default ship
|
|ship1
|}

==Data Dump==

extracted from a JSON blob near the bottom of <code>https://xkcd.com/2712/comic.js</code>.
I believe this to be all the data but i'm not sure. this should probably be on a different page but i'll leave that up to the smart people
<pre style="height:10em;overflow-y:scroll;">
{
"items": {
"coin-cannonball": {
"consumable": "yes",
"effect": "transformship|ship-tintin",
"image": "coin",
"loc": [
359,
-815
],
"size": [
40,
40
]
},
"coin-figure": {
"consumable": "yes",
"effect": "transformship|ship-figure",
"image": "figure",
"loc": [
-15050,
-2984
],
"size": [
40,
40
]
},
"coin-regular": {
"consumable": "yes",
"effect": "transformship|ship2",
"image": "regular",
"loc": [
-29976,
-8077
],
"size": [
40,
40
]
},
"coin-soccerball": {
"consumable": "yes",
"effect": "transformship|ship-soccer",
"image": "soccerball",
"loc": [
15293,
11140
],
"size": [
40,
40
]
}
},
"locations": {
"b612": {
"gravity": 60,
"height": 2048,
"loc": [
2610,
3700
],
"radius": 82,
"width": 2048
},
"dogplanet": {
"gravity": 300,
"height": 2048,
"loc": [
1240,
11230
],
"radius": 337,
"width": 2048
},
"earth": {
"gravity": 21000,
"height": 16384,
"loc": [
14360,
14360
],
"radius": 3275,
"width": 16384
},
"enterprise": {
"gravity": 200,
"height": 2048,
"loc": [
1010,
30440
],
"radius": 160,
"width": 2048
},
"europa": {
"gravity": 5000,
"height": 8192,
"loc": [
13180,
-2540
],
"radius": 1625,
"width": 8192
},
"goodhart": {
"gravity": 5000,
"height": 8192,
"loc": [
-13300,
-3260
],
"radius": 1625,
"width": 8192
},
"greatattractor": {
"gravity": 450000,
"height": 4096,
"loc": [
-297000,
-125000
],
"radius": 800,
"width": 4096
},
"japanmoon": {
"gravity": 50,
"height": 2048,
"loc": [
-5930,
-5800
],
"radius": 67,
"width": 2048
},
"maw1": {
"gravity": 2000,
"height": 2048,
"loc": [
-31576,
-9077
],
"radius": 18,
"width": 2048
},
"maw10": {
"gravity": 2000,
"height": 2048,
"loc": [
-29516,
-6321
],
"radius": 15,
"width": 2048
},
"maw11": {
"gravity": 2000,
"height": 2048,
"loc": [
-29381,
-6248
],
"radius": 12,
"width": 2048
},
"maw12": {
"gravity": 2000,
"height": 2048,
"loc": [
-26832,
-5928
],
"radius": 18,
"width": 2048
},
"maw13": {
"gravity": 2000,
"height": 2048,
"loc": [
-31743,
-4724
],
"radius": 18,
"width": 2048
},
"maw14": {
"gravity": 2000,
"height": 2048,
"loc": [
-26071,
-10824
],
"radius": 18,
"width": 2048
},
"maw2": {
"gravity": 2000,
"height": 2048,
"loc": [
-30211,
-8831
],
"radius": 18,
"width": 2048
},
"maw3": {
"gravity": 2000,
"height": 2048,
"loc": [
-27975,
-8266
],
"radius": 18,
"width": 2048
},
"maw4": {
"gravity": 2000,
"height": 2048,
"loc": [
-29546,
-7971
],
"radius": 18,
"width": 2048
},
"maw5": {
"gravity": 2000,
"height": 2048,
"loc": [
-29791,
-7631
],
"radius": 18,
"width": 2048
},
"maw6": {
"gravity": 2000,
"height": 2048,
"loc": [
-29328,
-7575
],
"radius": 18,
"width": 2048
},
"maw7": {
"gravity": 2000,
"height": 2048,
"loc": [
-29700,
-7426
],
"radius": 18,
"width": 2048
},
"maw8": {
"gravity": 2000,
"height": 2048,
"loc": [
-29165,
-7160
],
"radius": 18,
"width": 2048
},
"maw9": {
"gravity": 2000,
"height": 2048,
"loc": [
-30772,
-6910
],
"radius": 18,
"width": 2048
},
"nojapan": {
"gravity": 80,
"height": 2048,
"loc": [
-7680,
-5850
],
"radius": 200,
"width": 2048
},
"origin": {
"gravity": 1500,
"height": 4096,
"loc": [
0,
0
],
"radius": 630,
"width": 4096
},
"outside": {
"gravity": 200,
"height": 16384,
"loc": [
0,
-14500
],
"radius": 125,
"width": 16384
},
"peeler": {
"gravity": 50,
"height": 2048,
"loc": [
-9270,
620
],
"radius": 40,
"width": 2048
},
"pigeons": {
"gravity": 100,
"height": 2048,
"loc": [
-9020,
-2490
],
"radius": 160,
"width": 2048
},
"present": {
"gravity": 300,
"height": 2048,
"loc": [
22820,
-18920
],
"radius": 195,
"width": 2048
},
"qwantz": {
"gravity": 1400,
"height": 4096,
"loc": [
11060,
24870
],
"radius": 850,
"width": 4096
},
"remnant": {
"gravity": 9000,
"height": 4096,
"loc": [
19620,
3800
],
"radius": 537,
"width": 4096
},
"roads": {
"gravity": 40,
"height": 16384,
"loc": [
13240,
-11510
],
"radius": 30,
"width": 16384
},
"soupiter": {
"gravity": 1300,
"height": 4096,
"loc": [
-8000,
-9040
],
"radius": 812,
"width": 4096
},
"steerswoman": {
"gravity": 600,
"height": 4096,
"loc": [
-35070,
-2500
],
"radius": 520,
"width": 4096
},
"sun": {
"gravity": 9000,
"height": 16384,
"loc": [
-14950,
12080
],
"radius": 540,
"width": 16384
}
},
"player": {
"animation": "player.png",
"animcount": 4,
"startloc": [
0,
750
],
"targetheight": 59
},
"tile_height": 1024,
"tile_source": "tile",
"tile_width": 1024
}

</pre>

==Hacks==
'''Modes''' are activated by opening the Javascript Console (F12 [Or Command-Alt-I in most browsers under Mac OS X] to open Developer Tools, then Console tab) and writing corresponding commands. 
'''Click to expand:''' 

<div class="mw-collapsible mw-collapsed leftAlign" style="width:100%">
 
*'''Speedhack:''' <code>ship.engines = "warp"</code> - Speed hacking, sets speed to 1.4x. set to "standard" to reset to normal speed
*'''Teleport:''' <code>[Comic.voyager.pos.x, Comic.voyager.pos.y] = Comic.planetRects.'''''earth'''''.slice(0,2)</code> - teleport near a planet, in this example near earth. You'll still have to fly a bit towards the nearest planet to reach it. Replace '''''earth''''' with the planet you want to go to.
*'''Chaos Mode:''' <code>ship.engines="infinite improbability drive"</code> - Seems to randomly teleports the ship
*'''Insta Death:''' <code>ship.shields = false</code> - Kill the player if they land on a planet, the code never sets it to false, so it seems to be always true.
*'''No Clip:''' <code>noclip = true</code> - Enables noclip.
*'''Select ship:''' <code>Comic.ship = "ship-tintin"</code> - Select ship (use filename from list of ships)
*'''Autorotate:''' <code>Comic.cameraRotation = false</code> - View does not rotate with ship)
*'''Goggles:''' <code>ze.goggles()</code> - returns a warning: "they do nothing!". This is a reference to Hoverboard, where ''ze.goggles()'' would give you the ability to see false walls.
</div>
 

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

Welcome!

To celebrate the world of what if? 2, here is your very own planet to explore!

Give someone the science question-and-answer book what if? 2 for Christmas:
xkcd.com/whatif2

{{comic discussion}}
[[Category:Space]]
[[Category:Book promotion]]
[[Category:Interactive comics]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Black Hat]]
[[Category:Bobcats]]

2712: Gravity

2022-12-17T21:07:59Z

NeatNit: /* Hacks */ add Teleport hack, change formatting to be clearer and easier to read

{{comic
| number = 2712
| date = December 16, 2022
| title = Gravity
| image = gravity_2x.png
| imagesize = 740x700px
| noexpand = true
| titletext = It's a long way down.
}}

*To experience the interactivity, visit the [http://xkcd.com/2712/ original comic].
==Explanation==
{{incomplete|Created by HOTBLACK DESIATO'S TAX RETURNS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this interactive comic, the viewer pilots a small spaceship throughout a vast area in space. The viewer is capable of exploring various bodies and planets within the play area, many containing easter eggs alluding to What If? 2 and previous xkcd comics. The flight mechanics are largely, if not entirely, Newtonian, so the vessel is capable of using the gravity of planets to alter its trajectory or even enter orbit. The spaceship has several indicator circles around it which appear when a gravitational body comes into range, showing the direction towards their center of gravity.

The comic may not render properly on mobile devices, and it may require a keyboard to interact with. The arrow keys rotate the spaceship and accelerate it forward and backward.

After launching the spaceship, it is possible to catch glimpses (for the fraction of a second) of other celestial bodies than the spaceship, every 30 minutes or so, as long as the player keep pointing the nose of the spaceship towards the gravity indicators.

Throughout the play area are coins that change the spaceship into different rockets and non-space based vehicles, including humans.

The comic promotes Randall's new book [https://xkcd.com/what-if-2/ What If? 2], which was released in September and is available for purchase. Many of the planets contain references to various What If? articles.

The comic is similar to [[1608: Hoverboard]], which celebrated Thing Explainer instead.

===Celestial Bodies===

The following is an incomplete table of features:

{|class="wikitable sortable"
!
!
!
! colspan="4"|References
!
|-
! Description
! Transcript
! Tiles (X, Y)
! What If
! XKCD
! Movies
! Other
! Explanation
|-
|'''Starting planet'''
|
|(14360, 14360)
|
|
|
|
|The starting planet. The player begins on the launch pad in a landed position. Collecting the orbiting cannonball will transform you into a more advanced rocket.
|-
|'''Earth'''
|
|(27867,-35648)
|
|
|
|
|A planet with among other things; a crane dropping a comet onto a dinosaur, unusually high speed squirrels, meghan inviting cueball into a pool, a region where the frame rate is intentionally limited, a flagpole, a literal rabbithole referencing the figurativly speaking rabbit hole, someone aiming at a satellite with an arrow, a lake with an eel, the earth-moon firepole, a volcano, two figures being attacked by a third with a sword, two kids playing soccer (Catching the ball will turn the ship into a soccer ball), a frmer on a tractor being stuck in what seems elastic earth, a banana pile, meghan and cueball digging a hole (in the center of this planet is the "earth's core" referenced below, the niagra falls water being redirected into the LHC, Japan(?) leaving earth, a tue to the bottom of the ocean and a reference to everyoneorjustme.com
|-
|Earth's core
|
|
|
|
|
|
|[[Cueball]] and [[Megan]] floating in a small space in the center of the planet in inverted rotations.
|-
|'''Europa'''
|
|(13180, -2540)
|
|
|
|
|Europa, one of Jupiter's many moons (in real life). A broken, icy crust has a single path into its core.
|-
|Europa's crust
|"It's so unfair we don't get to compete in EuroVision."
"The region of the solar system where liquid water can exist on the surface is the habitable zone, and the region where it can exist beneath the surface of moons is the Eurozone."

"WHIRRRR"
|
|Y
|
|
|
|Europa's crust, with a single entrance into the core demarcated by an octopus leaving a hole.
Cueball states that Europa is in the Eurozone, a pun on the ''other'' Eurozone, with liquid underneath its surface.

A roomba whirs across the icy crust.

Cueball has a hairdryer and is melting the surface of the crust. A direct reference to [https://what-if.xkcd.com/35/ What If's Hairdryer].
|-
|Europa's core
|
|
|
|
|
|
|A watery ocean with octopi looking out into the great unknown using telescopes. This is a reference to octopus's intelligence here on earth! There's also a secret path leading to a book club, through the wreck of the Edmund Fitzgerald.
|-
|'''B-612'''
|"Asteroid deflection mission to earth. The package is delivered. Commencing planetary threat neutralization."
|(2610,3700)
|
|Y
|
|
|A reference to [https://xkcd.com/618/ Asteroid]. The little prince is having his asteroid blown up as it was heading towards Earth, apparently.
|-
|'''Dog park planet'''
|
|(1240, 11230)
|
|
|
|
|A planet with a dog park. Covered in dogs, along with dog walkers and some fences. There's a hole being dug by two dogs and a dog bone empty space in the center.
|-
|'''What If? 2 scenario planet'''
|
|
|
|
|
|
|
|-
|'''The Sun'''
|
|(-14950, 12080)
|
|
|
|
|Difficult to escape from if you hit the core.
|-
|Sun's core
|
|
|Y
|
|
|
|Difficult to escape from. Can be escaped by rotating around the sun until an escape-like velocity could be reached.
|-
|'''Soupiter'''
|
|(-800, -9040)
|Y
|
|
|
|A planet made of soup, with a core. As commented by Cueball, noodle soup. Has several small versions of other planets floating around it.
|-
|'''Earth without Japan'''
|
|(-7680, -5850)
|Y
|
|
|
|Earth, except it's missing japan.
|-
|'''Just Japan'''
|
|
|Y
|
|
|
|
|-
|'''A blob labeled "Pigeons"'''
|
|(-9020, -2490)
|Y
|
|
|
|A reference to Chapter 6 of What If? 2, where it would take 1.6 x 10^25 pigeons to lift you and a chair up to the halfway point of Australia's Q1 skyscraper.
|-
|'''Starship Enterprise'''
|
|
|
|
|Y
|
|Star Trek reference
|-
|'''Dinosaur planet'''
|
| (20403,-49559)
|
|
|Y
|
|An homage to [https://www.qwantz.com/ Dinosaur Comics], a webcomic Randall has mentioned several times before. All the dinosaurs on the planet are black-and-white versions of the clip art dinosaurs in that comic. Also references the Jurassic Park movies, in which the long grass depicted is a plot point in later films.
|-
|'''What If? 1 scenario planet'''
|
|
|
|
|
|
|
|-
|'''Cat blocking traffic flowing through portals'''
|
|
|
|
|
|
|
|-
|'''Edge of the Universe'''
|
| ( 6081, 26138 )
|
|
|
|
|It looks like a planet labeled "edge of the universe". Outside the universe, so inside the "edge of the universe planet", is another universe, the bubble universe. Hidden entrance is between 10 and 11 'o clock.
|-
|'''A tree larger than the planet it's growing on'''
|
|
|
|Y
|
|
|May be a reference to [https://www.explainxkcd.com/wiki/index.php/2:_Petit_Trees_(sketch) Petit Trees]. More probably, a reference to ''The Little Prince'', a french children's novel about a traveler from a distant asteroid. In the novel, baobab trees are a serious threat to the Prince's home asteroid, as they are so large that their roots would engulf the asteroid entirely. Randall has alluded to The Little Prince numerous times before, especially in what-if articles.
|-
|'''Milliways'''
|
|
|
|
|Y
|
|Hitchhiker's guide to the galaxy reference
|-
|'''The Great Attractor'''
|
|
|
|Y
|
|
|
|-
|'''Present'''
|"I didn't do any of my Christmas shopping yet because I was too busy drawing tiny planets."
"I'm done with my shopping! I got everyone What if? 2"

"...You got me my own book?"

"Yeah! I figured that since you wrote it, it must be right up your alley."

"It does make a good gift, though. You can get it at xkcd.com/whatif2"

"I got you this present!"

"Is it an angry bobcat?"

"It might not be."
|(22820,-18920)
|
|Y
|
|
|The XKCD cast react to giving each other What if 2? as a present. Gravity at the bottom of the missing quarter of the planet is inescapable. Black Hat gives Cueball a "gift" which he claims "might not be a bobcat", a reference to [[A-Minus-Minus]]
|-
|'''Black hole cluster'''
|
|
|
|
|
|
|A cluster of black holes with extremely high gravitational strength, set to the maximum of 2048. Not particularly easy to land on with multiple conflicting gravitational fields, but once landed on, rather difficult to escape.
|-
|'''Remnant'''
|"All right, that's close enough"
"Oh no"

"So don't delay, act now, supplies are running out"

"In 5 billion years, the Sun will run out of fuel and suffer gigennial burnout."

"The immense gravity of the sun's remnant means that this is the tallest possible skyscraper."
|(19620, 3800)
|
|
|
|
|A stellar remnant, with high gravity (making it difficult to escape, although it's possible to achieve escape velocity by flying sideways). Has various small landmarks, including a "skyscraper" and suspension bridge. There are bombs being dropped from above the planet, with one that seems to be sledding on the planet.
|-
|'''Steerswoman Planet'''
|"As a Steerswoman, I have to answer any question anyone asks me, or I'm expelled from the order."
"What's one question that you would be unwilling to answer?"
"Oh no."

"Handle this artifact with great care. It contains a magical wizard's potion which the ancients called 'trinitrotoluene'"
|
|
|
|
|
|A reference to the Steerswoman series of books by Rosemary Kirstein. Includes a number of references to the series, including a group of people observing a small object orbiting the planet.
|}

===Ships===
{|class="wikitable sortable"
|-
! Name
! Description
! Location
! Filename
! Image
|-
|Default
|The starting ship.
|
|ship2
|
|-
| Tintin
|
| On the starting planet, relatively easy to get
| ship-tintin
|
|-
| Figure
|Stick figure
|On Goodhart
|ship-figure
|
|-
| Soccer ball
| Soccer ball shaped ship
|
|ship-soccerball
|
|-
|Alternative Ship
|Slightly thicker version of default ship
|
|ship1
|}

==Data Dump==

extracted from a JSON blob near the bottom of <code>https://xkcd.com/2712/comic.js</code>.
I believe this to be all the data but i'm not sure. this should probably be on a different page but i'll leave that up to the smart people
<pre style="height:10em;overflow-y:scroll;">
{
"items": {
"coin-cannonball": {
"consumable": "yes",
"effect": "transformship|ship-tintin",
"image": "coin",
"loc": [
359,
-815
],
"size": [
40,
40
]
},
"coin-figure": {
"consumable": "yes",
"effect": "transformship|ship-figure",
"image": "figure",
"loc": [
-15050,
-2984
],
"size": [
40,
40
]
},
"coin-regular": {
"consumable": "yes",
"effect": "transformship|ship2",
"image": "regular",
"loc": [
-29976,
-8077
],
"size": [
40,
40
]
},
"coin-soccerball": {
"consumable": "yes",
"effect": "transformship|ship-soccer",
"image": "soccerball",
"loc": [
15293,
11140
],
"size": [
40,
40
]
}
},
"locations": {
"b612": {
"gravity": 60,
"height": 2048,
"loc": [
2610,
3700
],
"radius": 82,
"width": 2048
},
"dogplanet": {
"gravity": 300,
"height": 2048,
"loc": [
1240,
11230
],
"radius": 337,
"width": 2048
},
"earth": {
"gravity": 21000,
"height": 16384,
"loc": [
14360,
14360
],
"radius": 3275,
"width": 16384
},
"enterprise": {
"gravity": 200,
"height": 2048,
"loc": [
1010,
30440
],
"radius": 160,
"width": 2048
},
"europa": {
"gravity": 5000,
"height": 8192,
"loc": [
13180,
-2540
],
"radius": 1625,
"width": 8192
},
"goodhart": {
"gravity": 5000,
"height": 8192,
"loc": [
-13300,
-3260
],
"radius": 1625,
"width": 8192
},
"greatattractor": {
"gravity": 450000,
"height": 4096,
"loc": [
-297000,
-125000
],
"radius": 800,
"width": 4096
},
"japanmoon": {
"gravity": 50,
"height": 2048,
"loc": [
-5930,
-5800
],
"radius": 67,
"width": 2048
},
"maw1": {
"gravity": 2000,
"height": 2048,
"loc": [
-31576,
-9077
],
"radius": 18,
"width": 2048
},
"maw10": {
"gravity": 2000,
"height": 2048,
"loc": [
-29516,
-6321
],
"radius": 15,
"width": 2048
},
"maw11": {
"gravity": 2000,
"height": 2048,
"loc": [
-29381,
-6248
],
"radius": 12,
"width": 2048
},
"maw12": {
"gravity": 2000,
"height": 2048,
"loc": [
-26832,
-5928
],
"radius": 18,
"width": 2048
},
"maw13": {
"gravity": 2000,
"height": 2048,
"loc": [
-31743,
-4724
],
"radius": 18,
"width": 2048
},
"maw14": {
"gravity": 2000,
"height": 2048,
"loc": [
-26071,
-10824
],
"radius": 18,
"width": 2048
},
"maw2": {
"gravity": 2000,
"height": 2048,
"loc": [
-30211,
-8831
],
"radius": 18,
"width": 2048
},
"maw3": {
"gravity": 2000,
"height": 2048,
"loc": [
-27975,
-8266
],
"radius": 18,
"width": 2048
},
"maw4": {
"gravity": 2000,
"height": 2048,
"loc": [
-29546,
-7971
],
"radius": 18,
"width": 2048
},
"maw5": {
"gravity": 2000,
"height": 2048,
"loc": [
-29791,
-7631
],
"radius": 18,
"width": 2048
},
"maw6": {
"gravity": 2000,
"height": 2048,
"loc": [
-29328,
-7575
],
"radius": 18,
"width": 2048
},
"maw7": {
"gravity": 2000,
"height": 2048,
"loc": [
-29700,
-7426
],
"radius": 18,
"width": 2048
},
"maw8": {
"gravity": 2000,
"height": 2048,
"loc": [
-29165,
-7160
],
"radius": 18,
"width": 2048
},
"maw9": {
"gravity": 2000,
"height": 2048,
"loc": [
-30772,
-6910
],
"radius": 18,
"width": 2048
},
"nojapan": {
"gravity": 80,
"height": 2048,
"loc": [
-7680,
-5850
],
"radius": 200,
"width": 2048
},
"origin": {
"gravity": 1500,
"height": 4096,
"loc": [
0,
0
],
"radius": 630,
"width": 4096
},
"outside": {
"gravity": 200,
"height": 16384,
"loc": [
0,
-14500
],
"radius": 125,
"width": 16384
},
"peeler": {
"gravity": 50,
"height": 2048,
"loc": [
-9270,
620
],
"radius": 40,
"width": 2048
},
"pigeons": {
"gravity": 100,
"height": 2048,
"loc": [
-9020,
-2490
],
"radius": 160,
"width": 2048
},
"present": {
"gravity": 300,
"height": 2048,
"loc": [
22820,
-18920
],
"radius": 195,
"width": 2048
},
"qwantz": {
"gravity": 1400,
"height": 4096,
"loc": [
11060,
24870
],
"radius": 850,
"width": 4096
},
"remnant": {
"gravity": 9000,
"height": 4096,
"loc": [
19620,
3800
],
"radius": 537,
"width": 4096
},
"roads": {
"gravity": 40,
"height": 16384,
"loc": [
13240,
-11510
],
"radius": 30,
"width": 16384
},
"soupiter": {
"gravity": 1300,
"height": 4096,
"loc": [
-8000,
-9040
],
"radius": 812,
"width": 4096
},
"steerswoman": {
"gravity": 600,
"height": 4096,
"loc": [
-35070,
-2500
],
"radius": 520,
"width": 4096
},
"sun": {
"gravity": 9000,
"height": 16384,
"loc": [
-14950,
12080
],
"radius": 540,
"width": 16384
}
},
"player": {
"animation": "player.png",
"animcount": 4,
"startloc": [
0,
750
],
"targetheight": 59
},
"tile_height": 1024,
"tile_source": "tile",
"tile_width": 1024
}

</pre>

==Hacks==
'''Modes''' are activated by opening the Javascript Console (F12 [Or Command-Alt-I in most browsers under Mac OS X] to open Developer Tools, then Console tab) and writing corresponding commands. 
'''Click to expand:''' 

<div class="mw-collapsible mw-collapsed leftAlign" style="width:100%">
 
*'''Speedhack:''' <code>ship.engines = "warp"</code> - Speed hacking, sets speed to 1.4x. set to "standard" to reset to normal speed
*'''Teleport:''' <code>[Comic.voyager.pos.x, Comic.voyager.pos.y] = Comic.planetRects.'''''earth'''''.slice(0,2)</code> - teleport near a planet, in this example near earth. You'll still have to fly a bit towards the nearest planet to reach it. Replace '''''earth''''' with the planet you want to go to.
*'''Chaos Mode:''' <code>ship.engines="infinite improbability drive"</code> - Seems to randomly teleports the ship
*'''Insta Death:''' <code>ship.shields = false</code> - Kill the player if they land on a planet, the code never sets it to false, so it seems to be always true.
*'''No Clip:''' <code>noclip = true</code> - Enables noclip.
*'''Select ship:''' <code>Comic.ship = "ship-tintin"</code> - Select ship (use filename from list of ships)
*'''Autorotate:''' <code>Comic.cameraRotation = false</code> - View does not rotate with ship)
*'''Goggles:''' <code>ze.goggles()</code> - returns a warning: "they do nothing!". This is a reference to Hoverboard, where ''ze.goggles()'' would give you the ability to see false walls.
</div>
 

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

Welcome!

To celebrate the world of what if? 2, here is your very own planet to explore!

Give someone the science question-and-answer book what if? 2 for Christmas:
xkcd.com/whatif2

{{comic discussion}}
[[Category:Space]]
[[Category:Book promotion]]
[[Category:Interactive comics]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Black Hat]]
[[Category:Bobcats]]

2712: Gravity

2022-12-17T20:53:24Z

NeatNit: /* Hacks */ it's goggles, not googles. Also, they literally do nothing, why even mention them? I moved them to the bottom of the list, instead of the top.

{{comic
| number = 2712
| date = December 16, 2022
| title = Gravity
| image = gravity_2x.png
| imagesize = 740x700px
| noexpand = true
| titletext = It's a long way down.
}}

*To experience the interactivity, visit the [http://xkcd.com/2712/ original comic].
==Explanation==
{{incomplete|Created by HOTBLACK DESIATO'S TAX RETURNS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this interactive comic, the viewer pilots a small spaceship throughout a vast area in space. The viewer is capable of exploring various bodies and planets within the play area, many containing easter eggs alluding to What If? 2 and previous xkcd comics. The flight mechanics are largely, if not entirely, Newtonian, so the vessel is capable of using the gravity of planets to alter its trajectory or even enter orbit. The spaceship has several indicator circles around it which appear when a gravitational body comes into range, showing the direction towards their center of gravity.

The comic may not render properly on mobile devices, and it may require a keyboard to interact with. The arrow keys rotate the spaceship and accelerate it forward and backward.

After launching the spaceship, it is possible to catch glimpses (for the fraction of a second) of other celestial bodies than the spaceship, every 30 minutes or so, as long as the player keep pointing the nose of the spaceship towards the gravity indicators.

Throughout the play area are coins that change the spaceship into different rockets and non-space based vehicles, including humans.

The comic promotes Randall's new book [https://xkcd.com/what-if-2/ What If? 2], which was released in September and is available for purchase. Many of the planets contain references to various What If? articles.

The comic is similar to [[1608: Hoverboard]], which celebrated Thing Explainer instead.

===Celestial Bodies===

The following is an incomplete table of features:

{|class="wikitable sortable"
!
!
!
! colspan="4"|References
!
|-
! Description
! Transcript
! Tiles (X, Y)
! What If
! XKCD
! Movies
! Other
! Explanation
|-
|'''Starting planet'''
|
|(14360, 14360)
|
|
|
|
|The starting planet. The player begins on the launch pad in a landed position. Collecting the orbiting cannonball will transform you into a more advanced rocket.
|-
|'''Earth'''
|
|(27867,-35648)
|
|
|
|
|A planet with among other things; a crane dropping a comet onto a dinosaur, unusually high speed squirrels, meghan inviting cueball into a pool, a region where the frame rate is intentionally limited, a flagpole, a literal rabbithole referencing the figurativly speaking rabbit hole, someone aiming at a satellite with an arrow, a lake with an eel, the earth-moon firepole, a volcano, two figures being attacked by a third with a sword, two kids playing soccer (Catching the ball will turn the ship into a soccer ball), a frmer on a tractor being stuck in what seems elastic earth, a banana pile, meghan and cueball digging a hole (in the center of this planet is the "earth's core" referenced below, the niagra falls water being redirected into the LHC, Japan(?) leaving earth, a tue to the bottom of the ocean and a reference to everyoneorjustme.com
|-
|Earth's core
|
|
|
|
|
|
|[[Cueball]] and [[Megan]] floating in a small space in the center of the planet in inverted rotations.
|-
|'''Europa'''
|
|(13180, -2540)
|
|
|
|
|Europa, one of Jupiter's many moons (in real life). A broken, icy crust has a single path into its core.
|-
|Europa's crust
|"It's so unfair we don't get to compete in EuroVision."
"The region of the solar system where liquid water can exist on the surface is the habitable zone, and the region where it can exist beneath the surface of moons is the Eurozone."

"WHIRRRR"
|
|Y
|
|
|
|Europa's crust, with a single entrance into the core demarcated by an octopus leaving a hole.
Cueball states that Europa is in the Eurozone, a pun on the ''other'' Eurozone, with liquid underneath its surface.

A roomba whirs across the icy crust.

Cueball has a hairdryer and is melting the surface of the crust. A direct reference to [https://what-if.xkcd.com/35/ What If's Hairdryer].
|-
|Europa's core
|
|
|
|
|
|
|A watery ocean with octopi looking out into the great unknown using telescopes. This is a reference to octopus's intelligence here on earth! There's also a secret path leading to a book club, through the wreck of the Edmund Fitzgerald.
|-
|'''B-612'''
|"Asteroid deflection mission to earth. The package is delivered. Commencing planetary threat neutralization."
|(2610,3700)
|
|Y
|
|
|A reference to [https://xkcd.com/618/ Asteroid]. The little prince is having his asteroid blown up as it was heading towards Earth, apparently.
|-
|'''Dog park planet'''
|
|(1240, 11230)
|
|
|
|
|A planet with a dog park. Covered in dogs, along with dog walkers and some fences. There's a hole being dug by two dogs and a dog bone empty space in the center.
|-
|'''What If? 2 scenario planet'''
|
|
|
|
|
|
|
|-
|'''The Sun'''
|
|(-14950, 12080)
|
|
|
|
|Difficult to escape from if you hit the core.
|-
|Sun's core
|
|
|Y
|
|
|
|Difficult to escape from. Can be escaped by rotating around the sun until an escape-like velocity could be reached.
|-
|'''Soupiter'''
|
|(-800, -9040)
|Y
|
|
|
|A planet made of soup, with a core. As commented by Cueball, noodle soup. Has several small versions of other planets floating around it.
|-
|'''Earth without Japan'''
|
|(-7680, -5850)
|Y
|
|
|
|Earth, except it's missing japan.
|-
|'''Just Japan'''
|
|
|Y
|
|
|
|
|-
|'''A blob labeled "Pigeons"'''
|
|(-9020, -2490)
|Y
|
|
|
|A reference to Chapter 6 of What If? 2, where it would take 1.6 x 10^25 pigeons to lift you and a chair up to the halfway point of Australia's Q1 skyscraper.
|-
|'''Starship Enterprise'''
|
|
|
|
|Y
|
|Star Trek reference
|-
|'''Dinosaur planet'''
|
| (20403,-49559)
|
|
|Y
|
|An homage to [https://www.qwantz.com/ Dinosaur Comics], a webcomic Randall has mentioned several times before. All the dinosaurs on the planet are black-and-white versions of the clip art dinosaurs in that comic. Also references the Jurassic Park movies, in which the long grass depicted is a plot point in later films.
|-
|'''What If? 1 scenario planet'''
|
|
|
|
|
|
|
|-
|'''Cat blocking traffic flowing through portals'''
|
|
|
|
|
|
|
|-
|'''Edge of the Universe'''
|
| ( 6081, 26138 )
|
|
|
|
|It looks like a planet labeled "edge of the universe". Outside the universe, so inside the "edge of the universe planet", is another universe, the bubble universe. Hidden entrance is between 10 and 11 'o clock.
|-
|'''A tree larger than the planet it's growing on'''
|
|
|
|Y
|
|
|May be a reference to [https://www.explainxkcd.com/wiki/index.php/2:_Petit_Trees_(sketch) Petit Trees]. More probably, a reference to ''The Little Prince'', a french children's novel about a traveler from a distant asteroid. In the novel, baobab trees are a serious threat to the Prince's home asteroid, as they are so large that their roots would engulf the asteroid entirely. Randall has alluded to The Little Prince numerous times before, especially in what-if articles.
|-
|'''Milliways'''
|
|
|
|
|Y
|
|Hitchhiker's guide to the galaxy reference
|-
|'''The Great Attractor'''
|
|
|
|Y
|
|
|
|-
|'''Present'''
|"I didn't do any of my Christmas shopping yet because I was too busy drawing tiny planets."
"I'm done with my shopping! I got everyone What if? 2"

"...You got me my own book?"

"Yeah! I figured that since you wrote it, it must be right up your alley."

"It does make a good gift, though. You can get it at xkcd.com/whatif2"

"I got you this present!"

"Is it an angry bobcat?"

"It might not be."
|(22820,-18920)
|
|Y
|
|
|The XKCD cast react to giving each other What if 2? as a present. Gravity at the bottom of the missing quarter of the planet is inescapable. Black Hat gives Cueball a "gift" which he claims "might not be a bobcat", a reference to [[A-Minus-Minus]]
|-
|'''Black hole cluster'''
|
|
|
|
|
|
|A cluster of black holes with extremely high gravitational strength, set to the maximum of 2048. Not particularly easy to land on with multiple conflicting gravitational fields, but once landed on, rather difficult to escape.
|-
|'''Remnant'''
|"All right, that's close enough"
"Oh no"

"So don't delay, act now, supplies are running out"

"In 5 billion years, the Sun will run out of fuel and suffer gigennial burnout."

"The immense gravity of the sun's remnant means that this is the tallest possible skyscraper."
|(19620, 3800)
|
|
|
|
|A stellar remnant, with high gravity (making it difficult to escape, although it's possible to achieve escape velocity by flying sideways). Has various small landmarks, including a "skyscraper" and suspension bridge. There are bombs being dropped from above the planet, with one that seems to be sledding on the planet.
|-
|'''Steerswoman Planet'''
|"As a Steerswoman, I have to answer any question anyone asks me, or I'm expelled from the order."
"What's one question that you would be unwilling to answer?"
"Oh no."

"Handle this artifact with great care. It contains a magical wizard's potion which the ancients called 'trinitrotoluene'"
|
|
|
|
|
|A reference to the Steerswoman series of books by Rosemary Kirstein. Includes a number of references to the series, including a group of people observing a small object orbiting the planet.
|}

===Ships===
{|class="wikitable sortable"
|-
! Name
! Description
! Location
! Filename
! Image
|-
|Default
|The starting ship.
|
|ship2
|
|-
| Tintin
|
| On the starting planet, relatively easy to get
| ship-tintin
|
|-
| Figure
|Stick figure
|On Goodhart
|ship-figure
|
|-
| Soccer ball
| Soccer ball shaped ship
|
|ship-soccerball
|
|-
|Alternative Ship
|Slightly thicker version of default ship
|
|ship1
|}

==Data Dump==

extracted from a JSON blob near the bottom of <code>https://xkcd.com/2712/comic.js</code>.
I believe this to be all the data but i'm not sure. this should probably be on a different page but i'll leave that up to the smart people
<pre style="height:10em;overflow-y:scroll;">
{
"items": {
"coin-cannonball": {
"consumable": "yes",
"effect": "transformship|ship-tintin",
"image": "coin",
"loc": [
359,
-815
],
"size": [
40,
40
]
},
"coin-figure": {
"consumable": "yes",
"effect": "transformship|ship-figure",
"image": "figure",
"loc": [
-15050,
-2984
],
"size": [
40,
40
]
},
"coin-regular": {
"consumable": "yes",
"effect": "transformship|ship2",
"image": "regular",
"loc": [
-29976,
-8077
],
"size": [
40,
40
]
},
"coin-soccerball": {
"consumable": "yes",
"effect": "transformship|ship-soccer",
"image": "soccerball",
"loc": [
15293,
11140
],
"size": [
40,
40
]
}
},
"locations": {
"b612": {
"gravity": 60,
"height": 2048,
"loc": [
2610,
3700
],
"radius": 82,
"width": 2048
},
"dogplanet": {
"gravity": 300,
"height": 2048,
"loc": [
1240,
11230
],
"radius": 337,
"width": 2048
},
"earth": {
"gravity": 21000,
"height": 16384,
"loc": [
14360,
14360
],
"radius": 3275,
"width": 16384
},
"enterprise": {
"gravity": 200,
"height": 2048,
"loc": [
1010,
30440
],
"radius": 160,
"width": 2048
},
"europa": {
"gravity": 5000,
"height": 8192,
"loc": [
13180,
-2540
],
"radius": 1625,
"width": 8192
},
"goodhart": {
"gravity": 5000,
"height": 8192,
"loc": [
-13300,
-3260
],
"radius": 1625,
"width": 8192
},
"greatattractor": {
"gravity": 450000,
"height": 4096,
"loc": [
-297000,
-125000
],
"radius": 800,
"width": 4096
},
"japanmoon": {
"gravity": 50,
"height": 2048,
"loc": [
-5930,
-5800
],
"radius": 67,
"width": 2048
},
"maw1": {
"gravity": 2000,
"height": 2048,
"loc": [
-31576,
-9077
],
"radius": 18,
"width": 2048
},
"maw10": {
"gravity": 2000,
"height": 2048,
"loc": [
-29516,
-6321
],
"radius": 15,
"width": 2048
},
"maw11": {
"gravity": 2000,
"height": 2048,
"loc": [
-29381,
-6248
],
"radius": 12,
"width": 2048
},
"maw12": {
"gravity": 2000,
"height": 2048,
"loc": [
-26832,
-5928
],
"radius": 18,
"width": 2048
},
"maw13": {
"gravity": 2000,
"height": 2048,
"loc": [
-31743,
-4724
],
"radius": 18,
"width": 2048
},
"maw14": {
"gravity": 2000,
"height": 2048,
"loc": [
-26071,
-10824
],
"radius": 18,
"width": 2048
},
"maw2": {
"gravity": 2000,
"height": 2048,
"loc": [
-30211,
-8831
],
"radius": 18,
"width": 2048
},
"maw3": {
"gravity": 2000,
"height": 2048,
"loc": [
-27975,
-8266
],
"radius": 18,
"width": 2048
},
"maw4": {
"gravity": 2000,
"height": 2048,
"loc": [
-29546,
-7971
],
"radius": 18,
"width": 2048
},
"maw5": {
"gravity": 2000,
"height": 2048,
"loc": [
-29791,
-7631
],
"radius": 18,
"width": 2048
},
"maw6": {
"gravity": 2000,
"height": 2048,
"loc": [
-29328,
-7575
],
"radius": 18,
"width": 2048
},
"maw7": {
"gravity": 2000,
"height": 2048,
"loc": [
-29700,
-7426
],
"radius": 18,
"width": 2048
},
"maw8": {
"gravity": 2000,
"height": 2048,
"loc": [
-29165,
-7160
],
"radius": 18,
"width": 2048
},
"maw9": {
"gravity": 2000,
"height": 2048,
"loc": [
-30772,
-6910
],
"radius": 18,
"width": 2048
},
"nojapan": {
"gravity": 80,
"height": 2048,
"loc": [
-7680,
-5850
],
"radius": 200,
"width": 2048
},
"origin": {
"gravity": 1500,
"height": 4096,
"loc": [
0,
0
],
"radius": 630,
"width": 4096
},
"outside": {
"gravity": 200,
"height": 16384,
"loc": [
0,
-14500
],
"radius": 125,
"width": 16384
},
"peeler": {
"gravity": 50,
"height": 2048,
"loc": [
-9270,
620
],
"radius": 40,
"width": 2048
},
"pigeons": {
"gravity": 100,
"height": 2048,
"loc": [
-9020,
-2490
],
"radius": 160,
"width": 2048
},
"present": {
"gravity": 300,
"height": 2048,
"loc": [
22820,
-18920
],
"radius": 195,
"width": 2048
},
"qwantz": {
"gravity": 1400,
"height": 4096,
"loc": [
11060,
24870
],
"radius": 850,
"width": 4096
},
"remnant": {
"gravity": 9000,
"height": 4096,
"loc": [
19620,
3800
],
"radius": 537,
"width": 4096
},
"roads": {
"gravity": 40,
"height": 16384,
"loc": [
13240,
-11510
],
"radius": 30,
"width": 16384
},
"soupiter": {
"gravity": 1300,
"height": 4096,
"loc": [
-8000,
-9040
],
"radius": 812,
"width": 4096
},
"steerswoman": {
"gravity": 600,
"height": 4096,
"loc": [
-35070,
-2500
],
"radius": 520,
"width": 4096
},
"sun": {
"gravity": 9000,
"height": 16384,
"loc": [
-14950,
12080
],
"radius": 540,
"width": 16384
}
},
"player": {
"animation": "player.png",
"animcount": 4,
"startloc": [
0,
750
],
"targetheight": 59
},
"tile_height": 1024,
"tile_source": "tile",
"tile_width": 1024
}

</pre>

==Hacks==
'''Modes''' are activated by opening the Javascript Console (F12 [Or Command-Alt-I in most browsers under Mac OS X] to open Developer Tools, then Console tab) and writing corresponding commands. 
'''Click to expand:''' 

<div class="mw-collapsible mw-collapsed leftAlign" style="width:100%">
 
*'''Speedhack:''' ''ship.engines = "warp"'' - Speed hacking, sets speed to 1.4x. set to "standard" to reset to normal speed
*'''Chaos Mode''' ''ship.engines="infinite improbability drive" '' - Seems to randomly teleports the ship
*'''Insta Death''' ''ship.shields = false'' - Kill the player if they land on a planet, the code never sets it to false, so it seems to be always true.
*'''No Clip''' ''noclip = true'' - Enables noclip.
*'''Select ship''' ''Comic.ship = "ship-tintin"'' - Select ship (use filename from list of ships)
*'''Autorotate''' ''Comic.cameraRotation = false'' - View does not rotate with ship)
*'''Goggles:''' ''ze.goggles()'' - returns a warning: "they do nothing!". This is a reference to Hoverboard, where ''ze.goggles()'' would give you the ability to see false walls.
</div>
 

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

Welcome!

To celebrate the world of what if? 2, here is your very own planet to explore!

Give someone the science question-and-answer book what if? 2 for Christmas:
xkcd.com/whatif2

{{comic discussion}}
[[Category:Space]]
[[Category:Book promotion]]
[[Category:Interactive comics]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Black Hat]]
[[Category:Bobcats]]

Talk:2701: Change in Slope

2022-11-22T17:33:36Z

NeatNit: added better link

I am an occasional data scientist, and I can confirm this is why we have monitor stands that tilt. [[Special:Contributions/172.71.94.50|172.71.94.50]] 16:33, 21 November 2022 (UTC)

The third e in "neeed" in the title text seems to be a typo
[[User:Victor|Victor]] ([[User talk:Victor|talk]]) 16:41, 21 November 2022 (UTC)
:I think Randall may have added it to represent that the speaker prolongs the "e" sound for emphasis, although that's usually done with 4-5 e's. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:53, 21 November 2022 (UTC)
::I had to double-check this, myself (presumed the 'Bot created the lage faithfully, but went straight to source to see if I needed to find a vandalism post to revert). May need a comment (to prevent hypercorrection, if not to note the implied emphisis) and certainly will if it turns out to be a typo and gets corrected (for which I'm sure a future checker will discover Randall's revisiting, but then worth a note to that effect). [[Special:Contributions/172.70.90.2|172.70.90.2]] 17:42, 21 November 2022 (UTC)
:::I guess Randall fixed it, because I'm only seeing 2 'e's in the title text. Just updated it on the wiki. [[User:Zman350x|Zman350x]] ([[User talk:Zman350x|talk]]) 01:26, 22 November 2022 (UTC)
Bender Bot was one of the main characters in Futurama. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:54, 21 November 2022 (UTC)
:Just donning my unnecessary pedantry hat for a moment: his name is Bender Bending Rodriguez --[[User:192·168·0·1|192·168·0·1]] ([[User talk:192·168·0·1|talk]]) 23:02, 21 November 2022 (UTC)

A couple(?) of authors used the word(s) "(point of) inflection", which is {{w|Inflection point|not really suitable}} for a join between two straight segments. Was tempted to talk about "discontinuity", but that really only applies to the meta-slope (derivatives, to one degree or other) where it suddenly jumps (at a point), or the derivative's derivative has jumps (as it enters and leaves the smoothly linking curve). Hope it works well enough how I left it, though. [[Special:Contributions/162.158.142.176|162.158.142.176]] 21:28, 21 November 2022 (UTC)

For anyone curious, I used an image editor to turn the entire comic sideways and [https://cdn.discordapp.com/attachments/525939879805190154/1044395695525875712/xkcd_sideways.png it actually does seem to work,] to some degree anyway. [[User:SuperSupermario24|SSM24]] 23:37, 21 November 2022 (UTC)
:Added; thanks! [[Special:Contributions/172.71.158.230|172.71.158.230]] 00:14, 22 November 2022 (UTC)

: If you don't mind sharing: which program did you use? Did you tweak things like relative distance / camera FOV, to effectively select a specific point in the continuum that makes up the {{w|Dolly Zoom}} effect, and at the limit on one end results in {{w|orthographic projection}}? (Edit 10 minutes later: a better article to look at is {{w|Perspective distortion (photography)}}) Or did you just leave it at whatever the default is? Can you recreate the image with the two extremes, and share them? And lastly - can you upload the image (and potentially the new images) to the wiki directly, so they can be embedded in the page? Thanks! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 17:21, 22 November 2022 (UTC)

This one shows the beauty of Explainxkcd: people reading the explanation are likely to learn accessible methods of substantial practical utility. [[Special:Contributions/162.158.166.173|162.158.166.173]] 00:38, 22 November 2022 (UTC)

Hey, if it works for picking out lumber at Lowe’s, why not for graphs, too? - MadMarie
:There was an old bit of explanation that related it to examining physical objects (for dent/bend-removal in metalwork, I think it was) that got wiped out by a later edit. Though I'm considering my own version, now generalised to cover your experience, as it seems quite relevant/analogous to me. [[Special:Contributions/172.70.90.2|172.70.90.2]] 14:37, 22 November 2022 (UTC)

Whoever wrote the 1st explanation needs to go touch grass and learn how real people talk, pissed me off so much I just effectively rewrote the whole thing from scratch [[Special:Contributions/172.71.202.46|172.71.202.46]] 06:34, 22 November 2022 (UTC)

Going in a different direction than "this is silly" - if we ignore the "viewing point/parallax" issue, doing a change of basis like this is similar to linear methods like [SVD https://hadrienj.github.io/assets/images/ch12_svd/ch11_SVD_geometry.png] & [https://jakevdp.github.io/PythonDataScienceHandbook/figures/05.09-PCA-rotation.png PCA], and considering the graph as a mappingg in a "higher dimension" is similar to the "kernel trick" popularized by [https://i.ytimg.com/vi/wqSTBCguVyU/maxresdefault.jpg Support] [https://miro.medium.com/max/4800/1*gtF6KeL7b9zNHd7pXtC1Nw.png Vector] [https://dinhanhthi.com/img/post/ML/support-vector-machine/svm-3.jpg Machines] 11:31, 22 November 2022 (UTC)

== Raw Data ==

I love this cartoon. This is definitely something that was relevant in my work!

At my old job I had some commercial or public-domain software for extracting the raw data behind a scatter plot. If anyone has something like that handy, I would love to see someone extract the data behind the graph on the left, so that we can:
1. Apply the affine transformation which generates the image on the right with the tilted paper.
2. Apply the statistical tests which Randall Munroe is alluding to.

Talk:2701: Change in Slope

2022-11-22T17:24:20Z

NeatNit: fix typo

I am an occasional data scientist, and I can confirm this is why we have monitor stands that tilt. [[Special:Contributions/172.71.94.50|172.71.94.50]] 16:33, 21 November 2022 (UTC)

The third e in "neeed" in the title text seems to be a typo
[[User:Victor|Victor]] ([[User talk:Victor|talk]]) 16:41, 21 November 2022 (UTC)
:I think Randall may have added it to represent that the speaker prolongs the "e" sound for emphasis, although that's usually done with 4-5 e's. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:53, 21 November 2022 (UTC)
::I had to double-check this, myself (presumed the 'Bot created the lage faithfully, but went straight to source to see if I needed to find a vandalism post to revert). May need a comment (to prevent hypercorrection, if not to note the implied emphisis) and certainly will if it turns out to be a typo and gets corrected (for which I'm sure a future checker will discover Randall's revisiting, but then worth a note to that effect). [[Special:Contributions/172.70.90.2|172.70.90.2]] 17:42, 21 November 2022 (UTC)
:::I guess Randall fixed it, because I'm only seeing 2 'e's in the title text. Just updated it on the wiki. [[User:Zman350x|Zman350x]] ([[User talk:Zman350x|talk]]) 01:26, 22 November 2022 (UTC)
Bender Bot was one of the main characters in Futurama. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:54, 21 November 2022 (UTC)
:Just donning my unnecessary pedantry hat for a moment: his name is Bender Bending Rodriguez --[[User:192·168·0·1|192·168·0·1]] ([[User talk:192·168·0·1|talk]]) 23:02, 21 November 2022 (UTC)

A couple(?) of authors used the word(s) "(point of) inflection", which is {{w|Inflection point|not really suitable}} for a join between two straight segments. Was tempted to talk about "discontinuity", but that really only applies to the meta-slope (derivatives, to one degree or other) where it suddenly jumps (at a point), or the derivative's derivative has jumps (as it enters and leaves the smoothly linking curve). Hope it works well enough how I left it, though. [[Special:Contributions/162.158.142.176|162.158.142.176]] 21:28, 21 November 2022 (UTC)

For anyone curious, I used an image editor to turn the entire comic sideways and [https://cdn.discordapp.com/attachments/525939879805190154/1044395695525875712/xkcd_sideways.png it actually does seem to work,] to some degree anyway. [[User:SuperSupermario24|SSM24]] 23:37, 21 November 2022 (UTC)
:Added; thanks! [[Special:Contributions/172.71.158.230|172.71.158.230]] 00:14, 22 November 2022 (UTC)

: If you don't mind sharing: which program did you use? Did you tweak things like relative distance / camera FOV, to effectively select a specific point in the continuum that makes up the {{w|Dolly Zoom}} effect, and at the limit on one end results in {{w|orthographic projection}}? Or did you just leave it at whatever the default is? Can you recreate the image with the two extremes, and share them? And lastly - can you upload the image (and potentially the new images) to the wiki directly, so they can be embedded in the page? Thanks! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 17:21, 22 November 2022 (UTC)

This one shows the beauty of Explainxkcd: people reading the explanation are likely to learn accessible methods of substantial practical utility. [[Special:Contributions/162.158.166.173|162.158.166.173]] 00:38, 22 November 2022 (UTC)

Hey, if it works for picking out lumber at Lowe’s, why not for graphs, too? - MadMarie
:There was an old bit of explanation that related it to examining physical objects (for dent/bend-removal in metalwork, I think it was) that got wiped out by a later edit. Though I'm considering my own version, now generalised to cover your experience, as it seems quite relevant/analogous to me. [[Special:Contributions/172.70.90.2|172.70.90.2]] 14:37, 22 November 2022 (UTC)

Whoever wrote the 1st explanation needs to go touch grass and learn how real people talk, pissed me off so much I just effectively rewrote the whole thing from scratch [[Special:Contributions/172.71.202.46|172.71.202.46]] 06:34, 22 November 2022 (UTC)

Going in a different direction than "this is silly" - if we ignore the "viewing point/parallax" issue, doing a change of basis like this is similar to linear methods like [SVD https://hadrienj.github.io/assets/images/ch12_svd/ch11_SVD_geometry.png] & [https://jakevdp.github.io/PythonDataScienceHandbook/figures/05.09-PCA-rotation.png PCA], and considering the graph as a mappingg in a "higher dimension" is similar to the "kernel trick" popularized by [https://i.ytimg.com/vi/wqSTBCguVyU/maxresdefault.jpg Support] [https://miro.medium.com/max/4800/1*gtF6KeL7b9zNHd7pXtC1Nw.png Vector] [https://dinhanhthi.com/img/post/ML/support-vector-machine/svm-3.jpg Machines] 11:31, 22 November 2022 (UTC)

== Raw Data ==

I love this cartoon. This is definitely something that was relevant in my work!

At my old job I had some commercial or public-domain software for extracting the raw data behind a scatter plot. If anyone has something like that handy, I would love to see someone extract the data behind the graph on the left, so that we can:
1. Apply the affine transformation which generates the image on the right with the tilted paper.
2. Apply the statistical tests which Randall Munroe is alluding to.

Talk:2701: Change in Slope

2022-11-22T17:21:07Z

NeatNit: ask/interrogate about recreation image

I am an occasional data scientist, and I can confirm this is why we have monitor stands that tilt. [[Special:Contributions/172.71.94.50|172.71.94.50]] 16:33, 21 November 2022 (UTC)

The third e in "neeed" in the title text seems to be a typo
[[User:Victor|Victor]] ([[User talk:Victor|talk]]) 16:41, 21 November 2022 (UTC)
:I think Randall may have added it to represent that the speaker prolongs the "e" sound for emphasis, although that's usually done with 4-5 e's. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:53, 21 November 2022 (UTC)
::I had to double-check this, myself (presumed the 'Bot created the lage faithfully, but went straight to source to see if I needed to find a vandalism post to revert). May need a comment (to prevent hypercorrection, if not to note the implied emphisis) and certainly will if it turns out to be a typo and gets corrected (for which I'm sure a future checker will discover Randall's revisiting, but then worth a note to that effect). [[Special:Contributions/172.70.90.2|172.70.90.2]] 17:42, 21 November 2022 (UTC)
:::I guess Randall fixed it, because I'm only seeing 2 'e's in the title text. Just updated it on the wiki. [[User:Zman350x|Zman350x]] ([[User talk:Zman350x|talk]]) 01:26, 22 November 2022 (UTC)
Bender Bot was one of the main characters in Futurama. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 16:54, 21 November 2022 (UTC)
:Just donning my unnecessary pedantry hat for a moment: his name is Bender Bending Rodriguez --[[User:192·168·0·1|192·168·0·1]] ([[User talk:192·168·0·1|talk]]) 23:02, 21 November 2022 (UTC)

A couple(?) of authors used the word(s) "(point of) inflection", which is {{w|Inflection point|not really suitable}} for a join between two straight segments. Was tempted to talk about "discontinuity", but that really only applies to the meta-slope (derivatives, to one degree or other) where it suddenly jumps (at a point), or the derivative's derivative has jumps (as it enters and leaves the smoothly linking curve). Hope it works well enough how I left it, though. [[Special:Contributions/162.158.142.176|162.158.142.176]] 21:28, 21 November 2022 (UTC)

For anyone curious, I used an image editor to turn the entire comic sideways and [https://cdn.discordapp.com/attachments/525939879805190154/1044395695525875712/xkcd_sideways.png it actually does seem to work,] to some degree anyway. [[User:SuperSupermario24|SSM24]] 23:37, 21 November 2022 (UTC)
:Added; thanks! [[Special:Contributions/172.71.158.230|172.71.158.230]] 00:14, 22 November 2022 (UTC)

: If you don't mind sharing: which program did you use? Did you tweak things like relative distance / camera FOV, to effectively select a specific point in the continuum that makes up the {{w|Dolly Zoom}} effect, and at the limit on one end results in {{w|orthographic protection}}? Or did you just leave it at whatever the default is? Can you recreate the image with the two extremes, and share them? And lastly - can you upload the image (and potentially the new images) to the wiki directly, so they can be embedded in the page? Thanks! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 17:21, 22 November 2022 (UTC)

This one shows the beauty of Explainxkcd: people reading the explanation are likely to learn accessible methods of substantial practical utility. [[Special:Contributions/162.158.166.173|162.158.166.173]] 00:38, 22 November 2022 (UTC)

Hey, if it works for picking out lumber at Lowe’s, why not for graphs, too? - MadMarie
:There was an old bit of explanation that related it to examining physical objects (for dent/bend-removal in metalwork, I think it was) that got wiped out by a later edit. Though I'm considering my own version, now generalised to cover your experience, as it seems quite relevant/analogous to me. [[Special:Contributions/172.70.90.2|172.70.90.2]] 14:37, 22 November 2022 (UTC)

Whoever wrote the 1st explanation needs to go touch grass and learn how real people talk, pissed me off so much I just effectively rewrote the whole thing from scratch [[Special:Contributions/172.71.202.46|172.71.202.46]] 06:34, 22 November 2022 (UTC)

Going in a different direction than "this is silly" - if we ignore the "viewing point/parallax" issue, doing a change of basis like this is similar to linear methods like [SVD https://hadrienj.github.io/assets/images/ch12_svd/ch11_SVD_geometry.png] & [https://jakevdp.github.io/PythonDataScienceHandbook/figures/05.09-PCA-rotation.png PCA], and considering the graph as a mappingg in a "higher dimension" is similar to the "kernel trick" popularized by [https://i.ytimg.com/vi/wqSTBCguVyU/maxresdefault.jpg Support] [https://miro.medium.com/max/4800/1*gtF6KeL7b9zNHd7pXtC1Nw.png Vector] [https://dinhanhthi.com/img/post/ML/support-vector-machine/svm-3.jpg Machines] 11:31, 22 November 2022 (UTC)

== Raw Data ==

I love this cartoon. This is definitely something that was relevant in my work!

At my old job I had some commercial or public-domain software for extracting the raw data behind a scatter plot. If anyone has something like that handy, I would love to see someone extract the data behind the graph on the left, so that we can:
1. Apply the affine transformation which generates the image on the right with the tilted paper.
2. Apply the statistical tests which Randall Munroe is alluding to.

Talk:2663: Tetherball Configurations

2022-08-25T07:54:59Z

NeatNit: delete "First" comment

Is anyone else reminded of the "classes of a lever" sort of classification? Where the load, fulcrum, and force are permuted. I know that's not explicitly connected to this comic, but it feels like a similar vibe, since you've got 4 (or 3 out of the 4) elements, and you're just changing the order they're oriented relative to each other. Also, tempted to delete the above comment because it's neither relevant nor signed. [[User:Dextrous Fred|Dextrous Fred]] ([[User talk:Dextrous Fred|talk]]) 03:52, 25 August 2022 (UTC)

Ground-rope-ball is arguably a playable cooperative configuration. Player 1 whirls the ball above her head like a bola; Player 2 attempts to hit the ball and get it to reverse direction. Play continues until the ball hits the ground. The final score is equal to the number of reversals. [[Special:Contributions/172.70.93.43|172.70.93.43]] 06:29, 25 August 2022 (UTC)
: Ground-rope-ball is actually quite legit - I have one of these somewhere in the basement... https://www.youtube.com/watch?v=2FT0Z95kN4w [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 06:59, 25 August 2022 (UTC)
:: How does that base stay on the ground? --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:52, 25 August 2022 (UTC)
: Ground-rope-ball (GRB) definitely looks good. If you just place it in a playground and let some kids mess around, I guarantee they will eventually come up with rules that make for a fun game. It might not be Tetherball, but it's gotta be worthy of at least 4 stars. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:52, 25 August 2022 (UTC)

Talk:2663: Tetherball Configurations

2022-08-25T07:52:04Z

NeatNit: GRB is the future

First

Is anyone else reminded of the "classes of a lever" sort of classification? Where the load, fulcrum, and force are permuted. I know that's not explicitly connected to this comic, but it feels like a similar vibe, since you've got 4 (or 3 out of the 4) elements, and you're just changing the order they're oriented relative to each other. Also, tempted to delete the above comment because it's neither relevant nor signed. [[User:Dextrous Fred|Dextrous Fred]] ([[User talk:Dextrous Fred|talk]]) 03:52, 25 August 2022 (UTC)

Ground-rope-ball is arguably a playable cooperative configuration. Player 1 whirls the ball above her head like a bola; Player 2 attempts to hit the ball and get it to reverse direction. Play continues until the ball hits the ground. The final score is equal to the number of reversals. [[Special:Contributions/172.70.93.43|172.70.93.43]] 06:29, 25 August 2022 (UTC)
: Ground-rope-ball is actually quite legit - I have one of these somewhere in the basement... https://www.youtube.com/watch?v=2FT0Z95kN4w [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 06:59, 25 August 2022 (UTC)
:: How does that base stay on the ground? --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:52, 25 August 2022 (UTC)
: Ground-rope-ball (GRB) definitely looks good. If you just place it in a playground and let some kids mess around, I guarantee they will eventually come up with rules that make for a fun game. It might not be Tetherball, but it's gotta be worthy of at least 4 stars. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:52, 25 August 2022 (UTC)

Talk:2651: Air Gap

2022-07-28T12:30:04Z

NeatNit:

Worth noting that this is a large and inefficient version of an [https://en.wikipedia.org/wiki/Opto-isolator opto-isolator] [[Special:Contributions/108.162.221.79|108.162.221.79]] 05:37, 28 July 2022 (UTC)

: Incandescent light bulb (assuming it the lamp does not use LED in the shape of light bulb) is not only less efficient than diode, but also much slower to warm up and cool down - it usually is much more sensitive to rapid switching, and has shorter life counted in the number of on/off cycles. --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 07:45, 28 July 2022 (UTC)
:: There’s not even any indication that the bulb is shaped like an incandescent bulb. Only that the front of the light (either fixture or bulb) is a convex curve. For all we know that could be a lens or diffuser in front of a flat LED. Whoever wrote that needs to go back and walk, because the claim that an incandescent bulb is depicted is quite simply false.[[Special:Contributions/172.71.142.89|172.71.142.89]] 10:35, 28 July 2022 (UTC)

: I don't think it's less or more efficient than an opto-isolator, it essentially ''is'' just an opto-isolator. But an opto-isolator isn't supposed to be energy efficient to begin with; it's only designed to transmit data between circuits, not power. So the output side only needs to generate enough voltage/current to change the state of a transistor, and the input side only needs to generate enough light for the output side to do that. The voltages and currents involved aren't comparable to power circuits. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 08:14, 28 July 2022 (UTC)

: By the way, wikipedia links can be written like this: <code><nowiki>[[wikipedia:opto-isolator|]]</nowiki></code> result: [[wikipedia:opto-isolator|opto-isolator]] (the final <code>|</code> automatically gets expanded to the article title without the <code>wikipedia:</code> prefix). --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 08:26, 28 July 2022 (UTC)
::Or more often here on ExplainXkcd, <code><nowiki>{{w|article}}</nowiki></code> or <code><nowiki>{{w|article|anchor text}}</nowiki></code>. [[Special:Contributions/172.70.206.213|172.70.206.213]] 08:35, 28 July 2022 (UTC)

::: Yes, thanks :) although there is a tiiiiiny advantage to the direct link without the template (the way I said), <code><nowiki>[[wikipedia:Pipe (computing)|]]</nowiki></code> becomes [[wikipedia:Pipe (computing)|Pipe]] whereas <code><nowiki>{{w|Pipe (computing)}}</nowiki></code> becomes {{w|Pipe (computing)}}. The pipe trick strips out the disambiguation parts of the title according to [[Wikipedia:Help:Pipe trick|some rules]]. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 12:30, 28 July 2022 (UTC)

It is missing that air-gapping the power supply would protect your home from voltage surges in the power network caused by lightning strikes. Depending where the lightning hits the power network, there may be no fuses protecting your home or single fuses may fail to protect you. --[[Special:Contributions/172.70.246.115|172.70.246.115]] 07:57, 28 July 2022 (UTC)
:That is true. But the suggestion that this might have anything to do with general energy security (as is currently very prominent in the explanation) is entirely unconvincing to me.

Incandescent light bulbs convert most of their energy to infrared light. There are solar cells that work in this infrared spectrum, so this might not be all that inefficient as stated. This should in fact be a lot more efficient than any LED+visible spectrum based panel, as incandescent bulbs are very efficient in converting electricity into infrared light, much more than LEDs most likely will ever be.
The (mostly) omnidirectionality of the light source might be an even bigger loss, as most of the light (however efficient) does not even reach the panel.
And regarding sending data over this construct: As soon as there's a 0V state (which will be the case as soon as the transmission starts, due to some form of manchester coding, regardless of it being a 0 or 1 bit) the PC behind the solar panel would not only have a data transmission problem :)
(With incandescent bulb, that is. A LED 0V might be short enough for capacitors in the PC's power supply to buffer it, if it is only at 50%(+PSU conversion loss) load max, as manchester coded signals per definition have a duty cycle of 50% to keep the DC bias at 0V)
[[Special:Contributions/172.68.51.204|172.68.51.204]] 08:26, 28 July 2022 (UTC)

Talk:2651: Air Gap

2022-07-28T08:26:16Z

NeatNit:

Talk:2651: Air Gap

2022-07-28T08:17:20Z

NeatNit: add signature

Talk:2651: Air Gap

2022-07-28T08:14:38Z

NeatNit: reply regarding opto-isolator

No One Was Hurt

2022-07-09T12:30:24Z

NeatNit: make the comic link point to 404 (like "comic" 404: Not Found) - Template:comic doesn't have an option to disable the link entirely, but by default linked to https://www.xkcd.com/{{{lappend}}}/ which is hideous

{{comic
| date = July 6, 2022
| title = No One Was Hurt
| image = no_one_was_hurt.png
| titletext = See how the smoke obscures things so you don't see the approaching tornado until the firework streamers start to swirl right before the lightning hits the launcher. Thank God Cousin Ed was filming in slow motion. And, uh, that no one was hurt.
| lappend = 404
}}

==Explanation==
{{incomplete|Created by a FIREWORK TORNADO - Please put citations into context better. Please change this comment when editing this page. Do NOT delete this tag too soon.}}
This comic was originally uploaded normally on the [[xkcd]] website as number [[2642]], before being taken down and replaced by [[2642: Meta-Alternating Current]]. This was most likely done in response to the wave of shootings across the country during the celebrations, including {{w|Highland_Park_parade_shooting|a deadly mass shooting at the parade in Highland Park, Illinois}} which was recorded on video where people were injured and killed. So, a comic about 4th of July celebrations where someone could have been hurt can be seen as in bad taste.

[[Ponytail]] is about to show [[Cueball]] and [[Megan]] a video of a dramatic accident from a {{w|4th of July}} celebration with {{w|fireworks}}, in which nobody ended up harmed. Randall suggests that being told nobody got hurt implies such a video will be particularly interesting or exciting. This is because if the disclaimer is needed, then there would otherwise be reason for the watcher to be concered. And if the watcher could be concerned, then it was likely interesting. Here is [https://www.youtube.com/watch?v=Y5QBiZIxWbA&ab_channel=BYUUniverse an example video] in which probably no one was hurt.

The title text describes a particularly dramatic fireworks show interrupted by a tornado and thunderstorm, the joke being that the speaker seems more appreciative that it was recorded in slow-motion video than that nobody was harmed.

=== Citations ===

The Wikipedia article {{w|Mass shootings in the United States|"Mass shootings in the United States"|m|}} lists mass shootings in the USA, {{w|List_of_mass_shootings_in_the_United_States_in_2022|"List of mass shootings in the United States in 2022"}} more thoroughly lists those that happened in 2022, {{w|Highland Park parade shooting|"Highland Park parade shooting"}} details the specific shooting in Illinois, and {{w|Mass shootings in the United States|"Mass shootings in the United States"}} discusses US mass shootings instead of just listing them. The [https://www.gunviolencearchive.org/reports/mass-shooting Gun Violence Archive] website tracks mass shootings in the USA.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Ponytail is showing her phone to Cueball and Megan.]

:Ponytail: Okay, first of all, no one was hurt...

:Caption: How you know you're about to see a really good 4th of July video

{{comic discussion}}
[[Category:Deleted comics]]
[[Category:Extra comics]]

2642: Meta-Alternating Current

2022-07-08T18:51:36Z

NeatNit: add Trivia section; move mention of No One Was Hurt to the Trivia section; mention that this comic doesn't have a 2x resolution image

{{comic
| number = 2642
| date = July 6, 2022
| title = Meta-Alternating Current
| image = meta_alternating_current.png
| titletext = It's always bothered me that you can't cancel out an inverter by putting a second inverter after it.
}}

==Explanation==
{{incomplete|Created by a CHAIN OF INVERTERS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
{{w|Direct current}} is a unidirectional flow of electrons from a power source to something being powered, through one or more conductors, before returning to the power source via one or more other conductors, thus completing the circuit. Batteries produce direct current. It is commonly used in electronics applications, including computers. {{w|Alternating current}}, on the other hand, frequently reverses the direction of electron flow, and is commonly used for longer-distance transmission (such as from the power plant to an outlet).

This comic proposes a humorous ''Meta-Alternating Current'', which uses a series of adapters to "alternate" between DC and AC current along the length of a connector. This is absurd in part because typical {{w|power inverter}} efficiency is 90%, and maximum {{w|bridge rectifier}} efficiency is 81.2%, so an {{w|extension cord}} made of in this manner would lose about 27% power per such pair. The "extension cord" shown would yield about 11% of its input power.

The title text bemoans that an inverter, which converts direct current to alternating current, does not work in the other direction, as a layman's interpretation of the word "inverter" might appear. Rather, a separate device, a {{w|rectifier}}, also pictured in the comic, must be used for this second conversion.

Common understanding of "inverting" would be to turn upside-down, or reverse some aspect of the input. In mathematical contexts, the inverse of an inverse is the original object. For a DC power supply we might have supposed that what is inverted is polarity between the input and output, something that would be easily done at high efficiency by just 'crossing' (without connecting between) the wires coupling the inputs and outputs. Applied to AC, it would shift the phase by 180°. Two such cross-overs would indeed restore the original electrical supply.

In the conversion from DC to AC, it is instead an active circuit that ''periodically'' inverts, and then uninverts, the effective polarity – with a specific frequency, and usually a voltage conversion, to conform to some AC need such as using a car battery to power a standard household device designed and built for use on a mains supply. A rectifier is a nominally passive circuit that accepts either polarity (e.g. at any given moment of an AC phase) and produces a single definite polarity as output, possibly smoothed out by a buffering capacitance or with additional components to attain a given voltage and amperage.

It may in fact be the case that a campsite use of a rectifying device intended for home use (e.g. a standard phone charger that down-converts household AC to a given DC) requires it to be plugged into an inverter itself powered from a battery system (DC to AC), more inefficiently than a single converter (with the correct voltage/amperage re-regulation) might accomplish the task. Further chaining this into more inverters/rectifiers would normally not be considered and the final AC phase will have no bearing with the original, should that have any practical significance, though the frequency and magnitude ought to be sufficiently on-target.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

Cursed connectors #120

Drawing of a chain of rectifiers and inverters.
There are seven pairs of rectifier/inverter.
The chain starts on the left by a mains plug (type B), followed by the first rectifier. It ends with the last inverter, and a female mains plug (type B socket).

Meta-alternating current extension cord
(alternates between AC and DC)

==Trivia==
This comic replaced [[No One Was Hurt]] as comic 2642 after it was taken down from [[xkcd]]'s website.

This comic does not have a high-resolution (2x) image for high-DPI displays, making it look more blurry than usual on such devices (such as smartphones). This is probably because it was uploaded hastily to replace No One Was Hurt quickly.

{{comic discussion}}
[[Category:Cursed Connectors]]

Talk:2609: Entwives

2022-04-21T11:47:41Z

NeatNit: Explain the youtube link

This seems like one of the earliest-released comics in recent history [[User:Dextrous Fred|Dextrous Fred]] ([[User talk:Dextrous Fred|talk]]) 14:00, 20 April 2022 (UTC)

There seemed to be two versions of the title text; on mobile, there is a youtube link visible, but this is not present on my chrome desktop view [[User:Dextrous Fred|Dextrous Fred]] ([[User talk:Dextrous Fred|talk]]) 14:05, 20 April 2022 (UTC)

: The comic is a link, like [[1017: Backward in Time]] and many others. Many Android browsers simply choose to show the target URL beneath the title text. The YouTube URL is not part of the title text, on a PC you can just click the comic to open it. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 11:47, 21 April 2022 (UTC)

The mouseover text in android devices is this youtube link - [[https://www.youtube.com/watch?v=mt2qCjL6-n4]] https://www.youtube.com/watch?v=mt2qCjL6-n4 [[User:DefectedWBC|DefectedWBC]] ([[User talk:DefectedWBC|talk]]) 14:18, 20 April 2022 (UTC)

Is LotR the lowest scoring major motion picture on the {{w|Bechdel test}}? [[Special:Contributions/172.70.206.95|172.70.206.95]] 14:37, 20 April 2022 (UTC)

:Unlikely, depending on how you define major motion picture.

:There's no such thing as 'lowest scoring' - it's framed as a pass/fail test.[[Special:Contributions/172.69.79.203|172.69.79.203]] 11:39, 21 April 2022 (UTC)

As pointed out in YouTube’s comment section, the video seems to be a joke, not ''actually'' the only female interaction in the films. [[User:Chortos-2|Chortos-2]] ([[User talk:Chortos-2|talk]]) 14:49, 20 April 2022 (UTC)

Gender imbalance among readers and viewers of lotr as well. [[Special:Contributions/172.70.230.53|172.70.230.53]] 14:51, 20 April 2022 (UTC)

In response to Chortos-2 comment, I would think a slight edit for accuracy along the following lines -- instead of "a video showing" change to "a video that purports to show". As they discuss, the point still stands, but the added accuracy would hurt, would it? [[Special:Contributions/172.70.114.251|172.70.114.251]] 15:39, 20 April 2022 (UTC)newbie

I feel like it's weird that nobody's brought up that this is an Ent comic on 4/20. For context, reddit.com/r/trees (the weed subreddit) has an in joke where they call themselves ents, basically. [[User:Bazzherb|Bazzherb]] ([[User talk:Bazzherb|talk]]) 15:44, 20 April 2022 (UTC)

So who is the third hobbit supposed to be? --[[Special:Contributions/162.158.203.38|162.158.203.38]] 15:56, 20 April 2022 (UTC)
:With the caveat that (by movie standard reference) the hair colours are inverted — there is one dark-haired hobbit and three light(er)-haired ones — I'd say Pippin - if he's the taller one of the sidekick pair like I think he is, rather than Merry. But I can't guarantee the first two are Frodo and Sam (or which is which is which) because fairer-haired Sam is taller than dark- (and spiky-)haired Frodo in the reference cast photos I've just checked. (The necessary on-film rescaling/standing-in-a-hole of non-midget actors to play hobbits/dwarves might complicate these group tableaus!) Perhaps they are all Hobbits Of Another Story, coincidentally in a fellowship with another generic Human, Dwarf and Elf. Or else drawn more faithfully to the book (which I have yet to check) than the film adaptation? [[Special:Contributions/172.70.85.177|172.70.85.177]] 16:30, 20 April 2022 (UTC)

Considering Arwens and Ents age, I would actually suspect that yes he totally knows her. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 18:19, 20 April 2022 (UTC)
:My first thought was that, especially with both races having an interest in trees... But then I decided that their opposing views of trees (habitat vs livestock) might have encouraged a natural racial separation, or at least less likely to socially mix over the millenia. (Not that I wrote the text in support of it being a good excuse, I just post-hoc rationalised what I read. ;) ) [[Special:Contributions/172.70.85.211|172.70.85.211]] 19:10, 20 April 2022 (UTC)

*Some major films do even '''worse''' on the Bechdel scale than the ''Lord of the Rings'' films, which at least had three memorable, prominently credited female roles. ''Lawrence of Arabia'' had no actresses credited in the cast list. ''Master and Commander: The Far Side of the World'' had no actresses credited in the cast list, nor does IMDb list any uncredited actresses for it. --[[Special:Contributions/172.70.178.33|172.70.178.33]] 19:20, 20 April 2022 (UTC)

Talk:2567: Language Development

2022-01-12T20:04:40Z

NeatNit:

Has a small, child-size, stick figure been used before? I did not find a category on explainxkcd. This might be an interesting trivia to add. --[[Special:Contributions/198.41.242.129|198.41.242.129]] 18:45, 12 January 2022 (UTC)

: There have definitely been kids on xkcd before. For example: [[1145: Sky Color]] (but I'm sure there are others). --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 20:04, 12 January 2022 (UTC)

Actually words linguists use when they try to talk in very old languages sometimes sound like the things my little son might say between his first perfectly pronounced single words.--[[User:Gunterkoenigsmann|Gunterkoenigsmann]] ([[User talk:Gunterkoenigsmann|talk]]) 18:53, 12 January 2022 (UTC)

Someone needs to say “ontogeny recapitulates phylogeny”
[[Special:Contributions/172.70.206.151|172.70.206.151]] 18:56, 12 January 2022 (UTC)

Looking at Wiktionary, I believe the child is saying "[https://en.wiktionary.org/wiki/milk#Etymology_1 Milk] [https://en.wiktionary.org/wiki/please#Etymology_1 Please]" See also [https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-European/h%E2%82%82mel%C7%B5- Reconstruction:Proto-Indo-European/h₂melǵ-] [[User:Bpendragon|Bpendragon]] ([[User talk:Bpendragon|talk]]) 18:57, 12 January 2022 (UTC)

Hopefully he won't say the proto-Indo-European word for "bear". [[Special:Contributions/162.158.74.26|162.158.74.26]] 19:09, 12 January 2022 (UTC)Pat

2465: Dimensional Chess

2021-05-20T06:50:15Z

NeatNit: correction: first row is 2D, second 3D, third 4D, and fourth is 5D

{{comic
| number = 2465
| date = May 19, 2021
| title = Dimensional Chess
| image = dimensional_chess.png
| titletext = In Dimensional Chess, every move is annotated '?!'.
}}

==Explanation==
{{incomplete|Created by a FRACTAL CHESSBOARD. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}

Being good at chess is often regarded as a sign of high intelligence. A skilled player must be able to consider possibilities several moves in advance, which can be represented as an exponentially growing tree of possibilities. The {{w|branching factor}} of chess, the approximate number of legal moves available at any given time, is about thirty-five, although most players (human and computer) will use heuristics to prune the trees to regard only likely or promising moves. Expanding the playing field by generalizing to {{w|three-dimensional chess}} (or beyond) will increase the branching factor even further, and so someone who is able to competently play three-dimensional chess could be regarded as even more intelligent than someone who can only play two-dimensional chess. Making chess into an N-dimensional game thus makes it arbitrarily more difficult, even before Randall's addition of non-uniform dimensionality of the board.

Regarding Randall's rule that "every row has one more dimension than the one behind it," it is easiest to see how this is applied with the first two rows on each end. The first row on each end is a traditional two-dimensional chess board (albeit played with three-dimensional pieces): you can go from left to right, or forward into the next row. The second row then becomes a three-dimensional space: you can go left to right, forward to back, and now top to bottom. Note that there are seven spaces (represented by "shelves") from top to bottom, as opposed to the typical eight rows from left to right/front to back. This is likely to make sure there is symmetry between how many additional spaces are on top versus on the bottom (three, in this case). Moving another row would presumably add movement in some other direction to make it more complicated/interesting. This escalates until somehow the middle two rows require moving pieces in ''five'' dimensions, despite our typical world being three dimensional. This could potentially be accomplished via playing on a computer.

The title text refers to the practice of writing down what happens throughout the game, so that it is possible to review how the game progressed later. Recording moves in this fashion is required in most tournament situations. There are several common forms of {{w|Chess notation}} used for this purpose, and as well as indicating the moves, players may add annotations indicating their opinions about whether a particular move was good, bad, or peculiar. According to the title text, every annotation is followed by "?!"—which indicates a questionable move, of dubious value but not obviously a blunder either. The joke is that the N-dimensional game is so complicated that any move will answer this description.

Note that "in dimensional chess" may be a pun on "N-dimensional chess."

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[A chessboard is depicted in the middle of a stack of boards. All pieces visible on the middle board are in their starting positions, except the white knight from 2a at 1d and the black pawn from 2g at 2e. There are three boards each above and below the original, missing columns a and h. On columns c & f on each board, there are clear cubes with a small pedestal on each square. Columns d & e are similar, except with multiple cubes on each square. No chess pieces are visible, except for a white piece -- not clearly visible, but implicitly the white king's knight -- on the second board above the middle on 2b and a black pawn on the top board on 3f. Below the chessboards is a caption]
:[Caption below the panel]:
:The problem with ''N-''dimensional chess is that ''N'' is a constant across the board. In my new variant, every row has one more dimension than the one behind it.

{{comic discussion}}
[[Category:Chess]]

Talk:2412: 1/100,000th Scale World

2021-01-16T11:22:56Z

NeatNit:

Sprites?

[[Special:Contributions/172.68.174.44|172.68.174.44]] 17:01, 15 January 2021 (UTC)

Looks like there is a form of electrical discharge that can occur above thunderstorms called a [https://en.wikipedia.org/wiki/Sprite_(lightning) Sprite]

It actually took me a second to realise this was a new comic, I thought Randal just added different jokes to Wednesday's for some reason. Given the title text, I wonder what projection Randall would use for this scale model... I imagine a projection similar to [https://en.wikipedia.org/wiki/Build_the_Earth#Map_projection Build the Earth's modified Airocean] would work for something like this.--[[Special:Contributions/172.69.35.85|172.69.35.85]] 17:12, 15 January 2021 (UTC)

Just for reference and to be checked, I paste here the maths to compute that the panel spans 9 degrees of a great circle:
<pre>
> 10/1e3*1e5/6371*180/pi
[1] 8.993216
</pre>
--[[User:Pere prlpz|Pere prlpz]] ([[User talk:Pere prlpz|talk]]) 19:21, 15 January 2021 (UTC)

The ISS game seems very contradictory to the other rules in this and the previous comic. Given that the ISS would be only about 1 mm wide, hitting it with a nerf dart would almost certainly destroy it. [[User:Bischoff|Bischoff]] ([[User talk:Bischoff|talk]]) 19:59, 15 January 2021 (UTC)
:The world is at scale, but people and the artifacts they create don't seem to be. In particular, the wine glasses are normal size relative to the people. So the ISS may be life size, and hitting it with a dart should be trivial. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 06:23, 16 January 2021 (UTC)
:: At least in the previous comic, the artifacts created by mankind are very much to scale, see weather balloons and skyscrapers. So it stands to reason the ISS is as well. Also, hitting a life size ISS from about 2 meters away hardly seems like a challenging game. Especially since the return time of 90 minutes indicates its speed is also to scale. The wine glasses you mentioned aren't to scale because their not part of the scale model but rather part of the "real world". [[User:Bischoff|Bischoff]] ([[User talk:Bischoff|talk]]) 10:26, 16 January 2021 (UTC)
:Th rules in the other comic along with this one seem entirely for visitor safety rather than preserving anything in the model. There's warnings about standing on cities with "pointy towers" or digging near Yellowstone, implying you're allowed to stand in other cities and dig elsewhere, which would obviously have huge effects on the model.--[[Special:Contributions/108.162.215.60|108.162.215.60]] 23:32, 15 January 2021 (UTC)
::While you're right about most rules, you're not entirely correct. At least the rules regarding breaking off ice chips and refilling lake Tahoe seem to be solely for preserving the model, since they don't offer any obvious benefit or protection to the visitors. [[User:Bischoff|Bischoff]] ([[User talk:Bischoff|talk]]) 09:52, 16 January 2021 (UTC)
::: At the end of the day the reasons behind the rules don't matter, whoever made the scale world can decide on whichever rules they want! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 11:22, 16 January 2021 (UTC)

Is this a duplicate? Looks the same as [[2411: 1/10,000th Scale World]]. [[User:PvOberstein|PvOberstein]] ([[User talk:PvOberstein|talk]]) 20:24, 15 January 2021 (UTC)
:Look better, the scale is different. [[Special:Contributions/172.68.245.47|172.68.245.47]] 20:40, 15 January 2021 (UTC)

Correct me if im wrong but if you ran fast enough, could you go into orbit around earth? [[User:Donthaveusername|Donthaveusername]] ([[User talk:Donthaveusername|talk]]) 20:56, 15 January 2\021 (UTC) 
:This "What If" might help: [https://what-if.xkcd.com/68/ Little Planet] ''(also, I closed your /span tag (not sure why it's there, just following etiquette/not editing your post, while trying to fix a superfluous code-block /div that the wiki was inserting)'' [[User:Elvenivle|Elvenivle]] ([[User talk:Elvenivle|talk]]) 22:40, 15 January 2021 (UTC)

1:1,000,000 scale next? [[Special:Contributions/162.158.74.39|162.158.74.39]] 23:24, 15 January 2021 (UTC)
:Kind of like the [https://www.youtube.com/watch?v=0fKBhvDjuy0 Powers of Ten] short film. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 06:23, 16 January 2021 (UTC)

If visitors in the previous comic get hypoxia unless they crouch regularly, then shouldn't visitors in this comic get hypoxia unless they lie down regularly? However hypoxia would likely negate the need for an intoxicating gas (although the visitors wouldn't be able to enjoy the apparent curvature for long before going unconscious).[[Special:Contributions/162.158.186.220|162.158.186.220]] 00:02, 16 January 2021 (UTC)

The iss nerf point winning seems to be a reference to the [https://spaceinvaders.fandom.com/wiki/UFO space invaders UFO]

I can't get my head around 5oz as a volume, with wine glasses ranging from petite flutes to huge volumes for 'tasting' and/or 'binging' (depending on how much you fill it, and how much air you (don't) leave for it to 'breathe' into). Fluid ounces, I presume, but they mean little to me as everyday practical alternatives to the litre/millilitre and the US often doesn't even use the same measure amounts even when they nominally share a name with imperial so going to look at my own measuring jug probably would mislead me by a significant fraction. Yes, I could look it up, but it's annoying me that I would have to.
(Also, that glass she's putting icecaps in looks wine-glassy. Either you're icing wine, or using the wrong kind of glass for whisky/whatever.)[[Special:Contributions/141.101.105.122|141.101.105.122]] 04:50, 16 January 2021 (UTC)

The area from the previous comic is visible near mount Everest. It appears to be an exact copy, with the anvil could and ocean matching perfectly.[[Special:Contributions/108.162.245.82|108.162.245.82]] 09:20, 16 January 2021 (UTC)

Why are there Icecaps on the flat ground so close to mt everest? is it the arctic or am I missing something? didn't think himalaya is THAT far north... --[[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 10:43, 16 January 2021 (UTC)

Talk:1683: Digital Data

2020-12-25T12:08:50Z

NeatNit: remove spam and answer about the high DPI image

Ewww, Verizon? **** them [[User:International Space Station|International Space Station]] ([[User talk:International Space Station|talk]]) 04:58, 20 May 2016 (UTC)
::Don't forget the whole "Verizon Math" incident and Randall's much passed around check image. I'd be surprised if it isn't on 9GAG somewhere.... [[User:Psu256|Psu256]] ([[User talk:Psu256|talk]]) 17:12, 23 May 2016 (UTC)
:: https://xkcd.com/verizon/ [[Special:Contributions/198.41.238.16|198.41.238.16]] 02:30, 15 July 2017 (UTC)

Ironically, the title text on explainxkcd is different from the one on xkcd.com, demonstrating the reinterpretation of text encoded in UTF-8 as if it were encoded in ISO 8859-1. [[Special:Contributions/162.158.85.231|162.158.85.231]] 05:45, 20 May 2016 (UTC)

-Exactly; this nicely proves Randall's point. On my computer, different characters appear in different browsers, but of course in one browser the characters are reproducible.--[[User:Jkrstrt|Jkrstrt]] ([[User talk:Jkrstrt|talk]]) 07:26, 20 May 2016 (UTC)

Here is the decoded title text:
“If you can read this, congratulations–the archive youʼre you're using still knows about the mouseover text”!
[[Special:Contributions/108.162.229.16|108.162.229.16]] 07:51, 20 May 2016 (UTC)

:Grungy details:
:*â€œ -> ''convert to hex'' -> E2-80-9C -> ''UTF8 decode'' -> 0010-000000-011100 -> [http://www.fileformat.info/info/unicode/char/201C/index.htm U-201C "LEFT DOUBLE QUOTATION MARK"]
:*â€” -> ''convert to hex'' -> E2-80-94 -> ''UTF8 decode'' -> 0010-000000-010100 -> [http://www.fileformat.info/info/unicode/char/2014/index.htm U-2014 "EM DASH"]
:*â€™ -> ''convert to hex'' -> E2-80-99 -> ''UTF8 decode'' -> 0010-000000-011001 -> [http://www.fileformat.info/info/unicode/char/2019/index.htm U-2019 "RIGHT SINGLE QUOTATION MARK"]
:*â€! -> ''convert to hex'' -> E2-80-9D -> ''UTF8 decode'' -> 0010-000000-011101 -> [http://www.fileformat.info/info/unicode/char/201d/index.htm U-201D "RIGHT DOUBLE QUOTATION MARK"]
:[[User:Odysseus654|Odysseus654]] ([[User talk:Odysseus654|talk]]) 17:31, 20 May 2016 (UTC)

::The ''convert to hex'' step is really ''encode with Windows-1252''. Also, in the last sequence, the "!" is not part of the encoded quotation mark. The third byte of the quotation mark comes from an unprintable U-009D between the "â€" and the "!". U-009D isn't a valid Windows-1252 character, so either the encoding is actually a superset of Windows-1252 that includes U-009D, or the encoding process just allowed it.
:: [[Special:Contributions/162.158.255.103|162.158.255.103]] 17:26, 21 May 2016 (UTC)

He's written you're twice, but one is with a curly apostrophe, often favoured by americans (and maybe brits?), possible because of their keyboard. The simple apostrophe is “just” html-formatted, whereas the curly one has been molested by a UTF-8 / ISO-8859-1 misreading.
--[[Special:Contributions/108.162.229.16|108.162.229.16]] 07:51, 20 May 2016 (UTC)
: I'm British, and I don't have the curly apostrophe anywhere on my keyboard. [[User:Enchantedsleeper|Enchantedsleeper]] ([[User talk:Enchantedsleeper|talk]]) 11:01, 20 May 2016 (UTC)

: I'm American, and I also don't have the curly apostrophe anywhere on my keyboard, but word processing programs (like MS-Word) are configured by default to automatically replace an ASCII apostrophe in a conjunction with the fancy right-single-quote mark. Also when using quotation marks around text those programs automatically replace the repeated single ASCII quotation marks with the fancy left and right quotation marks (single if using single quotes, double if using double quotes). Most people don't care enough to disable that "feature"... [[Special:Contributions/162.158.252.143|162.158.252.143]] 15:13, 20 May 2016 (UTC)

:: Ok. I've never experienced that from any text processor (incl. MS Word), so maybe it's dependant on the system locale or another mysterious factor. I've just noticed a prevalence in english language texts online, but an absence in other european languages. Not even french, which has as many or more contractions. [[Special:Contributions/108.162.229.16|108.162.229.16]] 08:11 21 May 2016 (UTC)

This is a phenomenon that has always both fascinated me and frustrated me. I find it fascinating how, even today, data degrades as more and more people copy it (remember the old days when people used to copy VHS tapes, and the further you were from the original tape the more copying artefacts your copy had in it?). It also frustrates me, though, when I'm trying to find an original, undegraded image or video and it seems impossible to find. It's also annoying because it's actually pretty easy to copy something without causing any quality loss, yet practically every copied image on the internet has been degraded in some way or another. [[Special:Contributions/141.101.98.130|141.101.98.130]] 07:08, 20 May 2016 (UTC)

:If you haven't yet, you should check out this guy who ripped and reuploaded his own Youtube video 1000 times: https://www.youtube.com/watch?v=jEIzS_27Vt0 [[Special:Contributions/162.158.222.150|162.158.222.150]] 08:28, 20 May 2016 (UTC)

::...and after 100 iterations https://www.youtube.com/watch?v=k6GMvihskBQ ...and the summary of all of them https://www.youtube.com/watch?v=icruGcSsPp0 [[User:Odysseus654|Odysseus654]] ([[User talk:Odysseus654|talk]]) 16:50, 20 May 2016 (UTC)

:It can be frustrating to try to convince new people drawing schematics on the computer to not use 4-way junctions because they don't expect digital images to degrade over multiple generations of copying. This xkcd demonstrates the way multiple generations can degrade even digital images, potentially making it difficult to differentiate two crossing (but electrically separate) signal lines from a 4-way junction on a schematic. Sorry, I'll get off my soap box now. ;-) [[Special:Contributions/162.158.252.143|162.158.252.143]] 15:13, 20 May 2016 (UTC)

It's also funny because just a few moments ago I was trying to compress some video to send to someone. [[Special:Contributions/141.101.98.130|141.101.98.130]] 07:12, 20 May 2016 (UTC)

http://fotoforensics.com/analysis.php?id=274fcf46426f2da31b057f1652ae5269cfdbd70a.190103 this page highlights the encoding blocks so that the degration of quality can be seen better. [[Special:Contributions/141.101.91.205|141.101.91.205]] 09:42, 20 May 2016 (UTC)

:Nice example. Their picture is already a bad copy. While it's still a PNG, it's already reduced in size (600x228 instead of 720x282, 131381 byte instead of 190103). Btw. the file used in this wiki is also slightly different from what I see on xkcd. It's just 3 minutes older and 308 bytes larger. [[Special:Contributions/162.158.83.48|162.158.83.48]] 01:28, 23 May 2016 (UTC)

The phenomenon that Randall is making fun of in this comic is actually called a "shitpic" http://www.theawl.com/2014/12/the-triumphant-rise-of-the-shitpic The explanation should probably make reference to that. [[User:Enchantedsleeper|Enchantedsleeper]] ([[User talk:Enchantedsleeper|talk]]) 10:57, 20 May 2016 (UTC)

I think the watermarks on the last frame are from an unregistered screenshot tool, not "9gag" or similar. The references to shit pics are interesting, but aren't you over interpreting the whole thing? {{unsigned ip|162.158.83.174}}
: ...You realise that over-interpreting is what this wiki is ''for'', right? Also, not really, since all I said was that a "shitpic" is what this type of degraded image is called. [[User:Enchantedsleeper|Enchantedsleeper]] ([[User talk:Enchantedsleeper|talk]]) 15:03, 23 May 2016 (UTC)

There's a 9gag thing in the image, clean your glasses and look again. --[[Special:Contributions/173.245.54.46|173.245.54.46]] 12:15, 20 May 2016 (UTC)

Both screenshots from iOS definitely. Safari browser and… anybody knows? Some kind of other web browser? Maybe Chrome or Opera? <Need to finally create account> [[Special:Contributions/162.158.202.152|162.158.202.152]] 15:32, 20 May 2016 (UTC)

Apparently Russians have been getting this a lot, as they (up to the point of the existence of UNICODE) have had to deal a lot with people using bad codepages. Example of their post office dealing with a physical package addressed with a bad codepage: http://worldlanguages.wikia.com/wiki/Mojibake?file=Letter_to_Russia_with_krokozyabry.jpg [[User:Odysseus654|Odysseus654]] ([[User talk:Odysseus654|talk]]) 16:54, 20 May 2016 (UTC)

Here is the progression as I see it:
*Frame 1 - The original PNG
*Frame 2 - The PNG converted to a JPEG
*Frame 3 - The JPEG as viewed on a mobile browser (Safari on iOS in this case)
*Frame 4 - A screen-shot of the mobile browser uploaded to Tumblr and then stolen by 9GAG
[[Special:Contributions/173.245.52.62|173.245.52.62]] 19:37, 20 May 2016 (UTC)

Note that while the term "digital" is new, first digital format of information appeared long ago, with the development of standard alphabet. Images hand-drawn on paper can't be copied without loss, but if you write letters in fixed alphabet, it can be copied without errors forever (not counting errors caused by some letters getting out of use through history). Egyptian literature is probably lost due to us not knowing the (very big) full set of hieroglyphs, but [https://el.wikisource.org/wiki/%CE%9F%CE%B4%CF%8D%CF%83%CF%83%CE%B5%CE%B9%CE%B1/%CE%B1 Odyssey] could (and hopefully even was) be stored exactly how it was written. Wouldn't help read it, of course, language changed since then and it would need to be translated which, again, can lose some meaning ... -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 16:16, 21 May 2016 (UTC)

There's a much much older example. RNA and subsequently DNA are digital representations of the protein structures (also digital representations of 3-D molecular shapes). Degradation through copying is 1 source of variation which evolution selects over.[[User:MerlinMM|MerlinMM]] ([[User talk:MerlinMM|talk]]) 11:28, 23 May 2016 (UTC)
:Right. Humans were using digital data for their own reproduction long before they knew what "digital", "data" or even just "letter" is. DNA even uses primitive error correction techniques. Although when humans finally found out about RNA being digital, they already had other digital formats. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 00:21, 15 July 2017 (UTC)
::There's nothing primitive at all about DNA error correction techniques, just some people's understanding of them. [[Special:Contributions/198.41.238.16|198.41.238.16]] 02:35, 15 July 2017 (UTC)

Is it possible that the watermark in the bottom left of the last panel is supposed to read "drama.tumblr.com"?
--[[Special:Contributions/173.245.52.67|173.245.52.67]] 20:42, 23 May 2016 (UTC)

The alt text has been fixed, the second "You're" has been removed. {{unsigned ip|141.101.104.80}}

The phenomenon is related to {{w|Generation loss}} --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 14:50, 27 May 2016 (UTC)

Btw, does anybody know a digital archive that actually "knows about the title-text"? {{unsigned ip|162.158.17.66}}

;Source image updating?

If you look at the comic on the website, the first couple of frames are much more "decayed" than they are on the wiki copy. --[[Special:Contributions/198.41.238.16|198.41.238.16]] 01:47, 19 December 2016 (UTC)
: The source image has definitely been changed. [http:////imgs.xkcd.com/comics/digital_data.png Here's] the original image, and [http:////imgs.xkcd.com/comics/digital_data_2x.png here's] the new one. --[[Special:Contributions/162.158.59.190|162.158.59.190]] 01:13, 23 December 2016 (UTC)
:: Ok, this is weird - earlier today (2018-12-21), I was seeing the low-res version. But this evening, I'm seeing the high-res version. In between, I had linked it from reddit, maybe it switches based on popularity? [[Special:Contributions/172.68.132.95|172.68.132.95]] 07:23, 22 December 2018 (UTC)
:::I don't think so? I just saw the original comic after it was linked from reddit, still the degraded version. It was actually how I found about the degrading image. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 11:58, 13 March 2019 (UTC)
::::Getting worser [[Special:Contributions/172.69.69.196|172.69.69.196]] 04:49, 13 April 2019 (UTC)
::::As briefly described in the explanation, the high-DPI version of the comic is actually worse than the low-DPI version. Since comic [[1084]], xkcd offers higher-quality images if you're viewing it on a high-DPI screen - a tablet, a smartphone, or a high resolution PC or laptop. In a normal comic, the high-DPI image (twice the width and twice the height in pixels) would be sharper and nicer to look at on such a screen. In this comic, however, randall has deliberately made it ''worse'' than the low-DPI image. --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 12:08, 25 December 2020 (UTC)

Ironically, the special characters across xkcd.com appear to be messed up in a the same way the title text of this comic references--including the title text of this comic itself. It now reads, "Ã¢â‚¬Å“If you can read this, congratulationsÃ¢â‚¬â€the archive youÃ¢â‚¬â„¢re using still knows about the mouseover textÃ¢â‚¬Â!"
[[Special:Contributions/162.158.63.124|162.158.63.124]] 01:25, 12 October 2019 (UTC)
: That happens if the page defaults to "Western" encoding. Switch it to UTF-8 and it changes back to the original 'failure'. --[[User:Aaron of Mpls|Aaron of Mpls]] ([[User talk:Aaron of Mpls|talk]]) 05:45, 11 February 2020 (UTC)

It is 2019. Disney+ has launched. It cropped 19 seasons of Simpsons from 4:3 to 16:9, by just getting rid of the top and bottom of the images. It is the official streaming version of the series. --[[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 10:36, 18 November 2019 (UTC)

Talk:2399: 2020 Election Map

2020-12-16T22:38:48Z

NeatNit: the spirals are making me dizzy

I see a political comic... sure hope this doesn't spiral out of control. [[User:ChessCake|ChessCake]] ([[User talk:ChessCake|talk]]) 22:21, 16 December 2020 (UTC)
: How dare you accuse me of spiraling things out of control, you so-and-so! This kind of baseless backwards logic is exactly the problem with people who share your particular political opinions! --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 22:38, 16 December 2020 (UTC)

Talk:2395: Covid Precaution Level

2020-12-08T07:33:39Z

NeatNit:

The problem is precautions that ARE insufficient feel excessive to many people and precautions that are excessive FEEL insufficient to many others - and science seems to be unable to provide definitive answers to replace "feelings" with logic [[Special:Contributions/162.158.126.104|162.158.126.104]] 23:59, 7 December 2020 (UTC)

To save the person(s) effort who will ultimately write this into the explanation/transcript in a legible manner: There are 13 subdivisions in Insufficient, 14 subdivisions in Excessive, roughly (close enough to look deliberate, but sloppily so) 6 divisions shared, across a scale of 21 effective divisions. Enjoy! [[Special:Contributions/162.158.158.155|162.158.158.155]] 00:08, 8 December 2020 (UTC)

I wonder what is meant by the title text exactly, is the one kind of feedback you can get getting the disease? The way it is phrases it feels like "dying from covid" is the final feedback (you can only get it once and then it's too late). But just getting infected is already some feedback isn't it?

[[User:Flekkie|Flekkie]] ([[User talk:Flekkie|talk]]) 03:51, 8 December 2020 (UTC)

:The title text says ''definitive'' feedback, which I took to mean deaths. Numbers of those infected isn't inherently definitive as the precautions might affect how or if they recover. --[[Special:Contributions/162.158.255.152|162.158.255.152]] 05:01, 8 December 2020 (UTC)

:I interpreted the title text as referring to contracting COVID. The point of the precautions is to keep from contracting it: if you do contract it, that's definitive feedback that your precautions were insufficient; and once you're already infected, it's too late to do anything to prevent that infection. If COVID is like most other diseases (and I'm not sure if anyone knows for sure whether it is or not), then once you've had it once, you won't be able to contract it again, thanks your immune system having built up a resistance to it. --[[User:Someone Else 37|Someone Else 37]] ([[User talk:Someone Else 37|talk]]) 05:22, 8 December 2020 (UTC)

:: It is not. It is definitely possible to get COVID-19 again, although it is probably much less likely. There are documented cases of someone recovering and then being reinfected, including at least one in which they DNA tested the virus to confirm that it really was a separate infection and not a recurrence of something that had been in remission.[[Special:Contributions/172.69.35.126|172.69.35.126]] 05:57, 8 December 2020 (UTC)

: FWIW I also didn't figure out what feedback he meant. There's all sorts of usable feedback to use, but any change in precautions takes at least a few weeks to show up in the feedback. Still, as frustrating as that is, it's not something you can "only get once but then it's too late". --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:33, 8 December 2020 (UTC)

2393: Presidential Middle Names

2020-12-04T06:20:02Z

NeatNit: wikipedia link for middle name

{{comic
| number = 2393
| date = December 2, 2020
| title = Presidential Middle Names
| image = presidential_middle_names.png
| titletext = The bottom of the list remains unchanged. Poor Rutherford Birchard Hayes.
}}

==Explanation==
{{incomplete|Created by RICHARD MILHOUS NIXON, WITHOUT THE E. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
A list of what Randall perceives will be the prettiest presidential {{w|middle names}} after the inauguration on January 20, 2021. {{w|Joe Biden|Joe Robinette Biden}} (46th president-elect) will take the second slot bumping previous second-place holder {{w|Franklin D. Roosevelt|Franklin Delano Roosevelt}}, the 32nd president, back to third. {{w|Warren G. Harding|Warren Gamaliel Harding}}, the 29th president, remains in first. Robinette is Biden's [https://nymag.com/intelligencer/2008/08/joe_bidens_middle_name_is_robi.html grandmother's maiden name].

The title text announces that {{w|Rutherford B. Hayes|Rutherford Birchard Hayes}}, the 19th president, remains at or near the bottom.

Overall, the ranking would not include every president, as many early presidents, such as {{w|George Washington}} and {{w|John Adams}}, lacked middle names. Some presidents were also more commonly known by their middle names as opposed to their first names; examples include Hiram {{w|Ulysses Grant}}, Stephen {{w|Grover Cleveland}}, and Thomas {{w|Woodrow Wilson}}. It is unclear how Randall’s list would deal with these cases.

The humour is based around the misuse of an abstract descriptive subjective variable (prettiness) as an ordinal discrete variable scale.

==List of Presidents with middle names==
{| class="wikitable"
|+ (Ordered by middle name)
| James ABRAM Garfield
|-
| Chester ALAN Arthur
|-
|Lyndon BAINES Johnson
|-
|Rutherford BIRCHARD Hayes
|-
|John CALVIN Coolidge
|-
|Herbert CLARK Hoover
|-
|Dwight DAVID Eisenhower
|-
|Franklin DELANO Roosevelt
|-
|James EARL Carter
|-
|John FITZGERALD Kennedy
|-
|Warren GAMALIEL Harding
|-
|Stephen GROVER Cleveland
|-
|William HENRY Harrison
|-
|George HERBERT WALKER Bush
|-
|William HOWARD Taft
|-
|Barack HUSSEIN Obama
|-
|William JEFFERSON Clinton
|-
|Donald JOHN Trump
|-
|James KNOX Polk
|-
|Richard MILHOUS Nixon
|-
|John QUINCY Adams
|-
|Gerald RUDOLPH Ford
|-
|Harrison S Truman
|-
|Hiram ULYSSES Grant
|-
|George WALKER Bush
|-
|Ronald WILSON Reagan
|-
|Thomas WOODROW Wilson
|}

==Transcript==
:<big>Prettiest</big>
:Presidential Middle Names Official Rankings
:(Updated for 2021)

# Gamaliel (Warren Harding)
#Robinette (Joe Biden) '''(NEW!)'''
#Delano (Franklin Roosevelt) 

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Comics featuring politicians]]
[[Category:Rankings]]

128: dPain over dt

2020-11-13T22:35:09Z

NeatNit: oops

{{comic
| number = 128
| date = July 14, 2006
| title = dPain over dt
| image = dPain_over_dt.png‎
| titletext = You laugh to keep from crying, you do math to keep from crying...
}}

==Explanation==

Another one of the math-love relationship comics, a mathematical depiction of pain as a {{w|differential equation}} is shown. It is hoped that ''dPain/dt'', or the rate of pain (in this case, shrinking), decreases quickly so that the pain will vanish quickly. He's hoping the value for ''d'' will not be larger than a few days or some weeks. Assuming that ''How much she's still in my life'' is a constant [Megan], [http://www.wolframalpha.com/input/?i=dP%2Fdt+%3D+%28-k1*P%2BG%29*%281%2F%281%2Bexp%28-%28t-k2%29%2Fd%29%29%29 solving the differential equation] leads to the following solution (with unknown ''c1''):
: ''Temporarily removed''

If ''k1'' was positive or if ''k2'' was a large value, the value of ''dPain/dt'' would approach zero. Ideally, ''k1'' would be "How much she's in my life"/''Pain'' (we assume both these values are positive), while ''k2'' would ideally be extremely large. Either of these scenarios approach what would be a situation where the value of ''dPain/dt'' is close to zero. But we don't know the meaning of ''k1'' or ''k2''; these variables are just unpredictable.

In the title text, [[Randall]] changes the famous "laugh to keep from crying" statement to math.

==Transcript==
:dPain/dt = (-k1 Pain + [Image of Megan]) (1/(1 + e ^ -(t-k2)/d))
:''k''1=?
:''k''2=?
:[Image of Megan]=How much she's still in my life
:Please let ''d'' only be a few days... or weeks
:I guess there's some kind of a cutoff after years, where it stops mattering and we can be friends. Do I want that?
:Is ''k''1 positive? Is ''k''2 large?
:Will I ever stop feeling like this?

{{comic discussion}}
[[Category:Analysis]]
[[Category:Romance]]
[[Category:Comics featuring Megan]]

128: dPain over dt

2020-11-13T22:29:59Z

NeatNit: comment out math formula because the page was failing to load

{{comic
| number = 128
| date = July 14, 2006
| title = dPain over dt
| image = dPain_over_dt.png‎
| titletext = You laugh to keep from crying, you do math to keep from crying...
}}

==Explanation==

Another one of the math-love relationship comics, a mathematical depiction of pain as a {{w|differential equation}} is shown. It is hoped that ''dPain/dt'', or the rate of pain (in this case, shrinking), decreases quickly so that the pain will vanish quickly. He's hoping the value for ''d'' will not be larger than a few days or some weeks. Assuming that ''How much she's still in my life'' is a constant [Megan], [http://www.wolframalpha.com/input/?i=dP%2Fdt+%3D+%28-k1*P%2BG%29*%281%2F%281%2Bexp%28-%28t-k2%29%2Fd%29%29%29 solving the differential equation] leads to the following solution (with unknown ''c1''):
: ''Temporarily removed''<--<math> Pain(t) = {c_1 \left(e^{k_2/d} + e^{t/d}\right)}^{-dk_1} + \frac{[\text{Megan}]}{k_1}</math>-->

If ''k1'' was positive or if ''k2'' was a large value, the value of ''dPain/dt'' would approach zero. Ideally, ''k1'' would be "How much she's in my life"/''Pain'' (we assume both these values are positive), while ''k2'' would ideally be extremely large. Either of these scenarios approach what would be a situation where the value of ''dPain/dt'' is close to zero. But we don't know the meaning of ''k1'' or ''k2''; these variables are just unpredictable.

In the title text, [[Randall]] changes the famous "laugh to keep from crying" statement to math.

==Transcript==
:dPain/dt = (-k1 Pain + [Image of Megan]) (1/(1 + e ^ -(t-k2)/d))
:''k''1=?
:''k''2=?
:[Image of Megan]=How much she's still in my life
:Please let ''d'' only be a few days... or weeks
:I guess there's some kind of a cutoff after years, where it stops mattering and we can be friends. Do I want that?
:Is ''k''1 positive? Is ''k''2 large?
:Will I ever stop feeling like this?

{{comic discussion}}
[[Category:Analysis]]
[[Category:Romance]]
[[Category:Comics featuring Megan]]

1372: Smartwatches

2020-11-11T08:19:16Z

NeatNit: there's a difference

{{comic
| number = 1372
| date = May 23, 2014
| title = Smartwatches
| image = smartwatches.png
| titletext = This is even better than my previous smartphone casemod: an old Western Electric Model 2500 desk phone handset complete with a frayed, torn-off cord dangling from it.
}}

==Explanation==
{{w|Smartwatch|Smartwatches}} are fairly recent innovations which function something like smartphones which are attached to one's wrist, although the screens are often shorter than those of typical smartphones, and they typically need to be attached via bluetooth to a smartphone. This comic shows someone "{{w|Case modding}}" some smartwatches and a broken smartphone; that is, taking the electronic innards of two smartwatches and putting them into the sawn-in-half case of a smartphone before attaching the two halves with a hinge, allowing it to open and close like flip phones, a type that was popular before the rise of smartphones.

The {{w|Model_500_telephone#Model_2500|Western Electric Model 2500}} is the last standard desk-style domestic telephone set issued by the {{w|Bell System}} in North America. It contains the # key and the * key, so it can be said it has same application features as the first cellphones, but it's obviously much bigger, and of course not wireless. Smartphones usually have much more functionality. {{w|Case modding}} is the art of building machines (usually computers) into nicely shaped non-standard cases. The opinion about "niceness" of the result vary, as usual in art. The point is that changing the case doesn't change the functionality, so the niceness (or, usually, "coolness") is generally the only relevant feature (although, badly done modding can affect cooling).

It appears that [[Randall]] has a rather low opinion of smartwatches, as he suggests that it would be better to take out their screens and mount them onto a dead iPhone than to use them the way smartwatches are normally used.

However, Randall's suggestion to cut open the dead phone with a hacksaw is unsound for several reasons:
1. Any attempt to saw through glass will cause it to shatter. To cut glass, one needs to grind it, not saw it.
2. Even if the phone is dead, the battery may be charged. Saw blades conduct electricity, so the person might get electrocuted.
3. Some batteries contain chemicals that are toxic or explosive. Even if the battery is discharged, sawing through it is very dangerous.
To add which, the hinge depicted in the cartoon is an ordinary household hinge. It is overly large for using in electronics compared to hinges on old clamshell-style cell phones, and drilling holes in the watch cases to attach one would potentially damage the internal electronic circuits. It could also puncture the battery, causing it to catch fire. Either render the watch useless.
4. Also, it's possible the watches wouldn't fit that nicely into the iPhone.

While no phones such as the one depicted existed at the time of the comic (2014), in November 2019, Motorola officially announced a new Android phone, to be released under the Razr name, which is extremely similar in form-factor to the fictitious phone shown in this comic, albeit with a single flexible OLED screen, rather than two separate screens.

==Transcript==
:A USE FOR SMARTWATCHES:
:[Depicted are two smartwatches, both labelled as "Working" and showing generic colour displays, and one smartphone labelled as "Dead" with a blank screen.]

:[A hacksaw cutting through the smartphone, throughout the middle of the long edge of the case.]

:[The two smartwatches are shown with the wristband and case broken around the edge of the display because the displays with the associated electronics are removed. Arrows are shown coming from the smartwatch cases to the smartwatch displays, then from the displays to the smartphone case halves.]

:[The smartphone halves are installed with the smartwatch components and a hinge with screws beside is shown. Another view shows the hinge screwed into the back of the smartphone case.]

:[The smartphone with the working smartwatch components installed is shown, with the hinge three-quarters open and fully closed - resembling an early flip-phone.]
:World's first flip iPhone

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Smartphones]]

Talk:2337: Asterisk Corrections

2020-07-27T07:27:38Z

NeatNit:

I think the only spot of the title text quote into which "witchcraft" makes a decent sentence is to replace "next": "I'd love to meet up, maybe in a few days? Witchcraft week is looking pretty empty" [[Special:Contributions/173.245.54.161|173.245.54.161]] 01:02, 25 July 2020 (UTC) Me
:I'd go with replacing "meet up". "I'd love to witchcraft, maybe in a few days? Next week is looking pretty empty." [[User:Orion205|Orion205]] ([[User talk:Orion205|talk]]) 01:14, 25 July 2020 (UTC)
:: "I'd love to meet up, witchcraft in a few days? Next week is looking pretty empty." would be the third interpretation [[User:Multiverse42|Multiverse42]] ([[User talk:Multiverse42|talk]]) 01:39, 25 July 2020 (UTC)
::Or it could be "I'd love to meet up, maybe witchcraft a few days?" Munroe really loves to mess with people. [[User:A|A]] ([[User talk:A|talk]]) 01:43, 25 July 2020 (UTC)
::If it can take out a whole sentence, "I'd love to meet up in a few days. [Magic & calendar shredding sounds, first sentence replaced with witchcraft] Next week is looking pretty empty." would be a pretty satisfying way I would do it IRL. My plan canceling capabilities are absolute witchcraft [[Special:Contributions/172.69.71.82|172.69.71.82]] 08:53, 25 July 2020 (UTC)
: Alternatively, witchcraft replaces maybe: "I'd love to meet up, [how about we practice] witchcraft in a few days?" [[Special:Contributions/162.158.75.66|162.158.75.66]] 02:06, 25 July 2020 (UTC)

A splat? I didn't know that. IME it's just the messed up word resurrected to, summon a beech, auto corrected to the same wrong word. BTW the asterisk on an obsolete keyboard looked like a squished spider, thus 'splat.'

Asterisks can replace multiple words, right? Something like "I'd like to meet up, maybe witchcraft? Next week is looking pretty empty" could work, yeah? [[Special:Contributions/108.162.246.135|108.162.246.135]] 04:36, 25 July 2020 (UTC)
:"I'd like witchcraft? Next week is looking pretty empty." [[Special:Contributions/162.158.159.18|162.158.159.18]] 12:35, 25 July 2020 (UTC)

I have to admit, before reading the title text I was expecting him to either have a sentence with a single replacement which could go in several locations (maybe both a noun and a verb), or a followup text implying that the obvious place to put those corrections wasn't the intended one. This time I feel a little disappointed; a sentence which feels natural with the replacement in several places would have been much more satisfying than one where it's a stretch to find any suitable place. [[User:Angel|Angel]] ([[User talk:Angel|talk]]) 10:14, 26 July 2020 (UTC)

does it necessarily have to replace a word? i find "I'd love to meet up, maybe witchcraft in a few days? Next week is looking pretty empty." to make more sense. [[Special:Contributions/172.68.174.80|172.68.174.80]] 11:30, 26 July 2020 (UTC)

I'd go with replacing "meet". "I'd love to witchcraft up, maybe in a few days? Next week is looking pretty empty." --[[Special:Contributions/172.69.34.54|172.69.34.54]] 21:22, 26 July 2020 (UTC)

How about including the text before the quote (this is surely cheated a bit, but it's witchcraft so..): I like witchcraft to make it as hard as possible. "I'd love to meet up, maybe in a few days? Next week is looking pretty empty"
Maybe someone can even figure out a version, where interpreting the quote after "witchraft", i.e. "witchcraft"", as part of the correction, could make sense. My knowledge of weird english sentence types is limited, since english is not my mother tongue. [[Special:Contributions/162.158.92.146|162.158.92.146]] 22:20, 26 July 2020 (UTC) WhoCaresAboutMyNameh

I have NEVER seen splat used this way before. Is it really a thing? I have always used regex (s/wrong/correct). [[User:Vampire|Vampire]] ([[User talk:Vampire|talk]]) 03:28, 27 July 2020 (UTC)

I usually put the asterisk after the word, rather than before. For example:

There's smoke coming out of my cat, is that bad?

car*

Is that wrong? --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 07:27, 27 July 2020 (UTC)

Talk:2335: Photo Deposit

2020-07-20T23:38:09Z

NeatNit: GTA V

Depositing cash through a smartphone app was one of the silliest and most useful features in GTA V. Unfortunately, depositing money would not duplicate it. Presumably the characters in the game are very honest and trustworthy, destroying any cash instantly after scanning it in. This honesty is to be expected from thieving killers such as these.

You can also withdraw cash via the app. How that works is beyond me.

--[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 23:38, 20 July 2020 (UTC)