explain xkcd - User contributions [en]

2278: Scientific Briefing

2020-03-10T11:09:24Z

173.245.54.209: we should set a norm of acting on problems! even just a smidge by saying that we should!

{{comic
| number = 2278
| date = March 9, 2020
| title = Scientific Briefing
| image = scientific_briefing.png
| titletext = "I actually came in in the middle so I don't know which topic we're briefing on; the same slides work for like half of them."
}}

==Explanation==
{{incomplete|Created by a THE FOLLOWING ANNOYING MESSAGE IS IMPORTANT: IS ANYBODY INTERESTED IN WORKING ON SOLUTIONS TO THE PROBLEM THE COMIC IS ABOUT? LIKE MAKING A WIKI FOR SOLUTIONS AND VIEWPOINTS TO GENERAL ISSUES? PLEASE MAKE SOMETHING AND LINK TO IT HERE. WE ARE ALL TIRED OF PRETENDING IT IS NORMAL TO IGNORE MAJOR PROBLEMS. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}

Things are not good, and are getting worse. The only way for things to not be bad is for someone to do something about it. Megan and Cueball are presenting these things to White Hat, presumably hoping to encourage him to do something about things, but he instead chooses to wait for things to become bad, to which Megan replies that this is exactly the bad thing she and Cueball were hoping to avoid.

What things? Any number of things, because, as the title text remarks, this is true of "like half of" bad things facing society. The three comics preceding this one have been about COVID-19 ("the coronavirus"), so "things" could refer to cases of infections, but more like #227, it is likely a comment on the numerous world catastrophes that get sidelined until the very last moment, such as unemployment, crime, water quality, road systems, rising extremism and wars between groups with similar needs, lack of responsible oversight in majorly impactful international decisions, corruption and lack of trust for those with power, or global warming and related extinction of most species and cultures.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
[Megan and Cueball are showing a graph on a projected screen. The graph is labeled "Things", with "Time" advancing to the right on the ''x''-axis. The level of "Things" has been rising over time to a point labeled "Now". The current level of "Things" is above a level labeled "Good", and about as far below a level labeled "Bad". Megan is pointing to the line of "Things" with a pointer stick, while Cueball is pointing up to the "Bad" level with a pointer stick.]

:Megan: Here's the situation:
:Megan: This line is here.
:Cueball: But it's going up toward ''here''.

[White Hat enters the scene. His hand is on his chin. Cueball is no longer holding a pointer stick.]

:White Hat: So things will be bad?
:Megan: Unless someone does something to stop it.
:White Hat: Will anyone do that?
:Megan: ...We don't know.
:Megan: That's why we're showing you this.

[A narrow panel focusing only on Megan and Cueball.]

:White Hat (off-panel, left): So you don't know,
:White Hat: And the graph says things are '''''not''''' bad.
:Megan (or Cueball?): But if no one acts, they'll '''''become''''' bad.

[White Hat is back inside the frame. He is gesturing to Megan and Cueball with his palm up.]

:White Hat: Well, please let me know if that happens!
:Megan: Based on this conversation, it already has.

==Trivia==
Poorly labeled graphs were already the topic of [[833: Convincing]].

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring White Hat]]
[[Category:Charts]]

Talk:1643: Degrees

2020-03-10T08:01:58Z

173.245.54.209:

Rankine is a good compromise. [[Special:Contributions/173.245.56.65|173.245.56.65]] 14:11, 15 February 2016 (UTC)

0.173 rad = 10°. Now it could be 10°C (50°F) or 10°F (-12°C).--[[Special:Contributions/108.162.228.113|108.162.228.113]] 14:14, 15 February 2016 (UTC)

It should probably be noted that since 0.173 radians is equal to around 9.91 degrees, the temperature that Cueball gave is likely in 'radians Celsius', since 9.91 degrees Farenheit would be an unlikely temperature to occur, unless they're somewhere like Canada or northern Russia --[[Special:Contributions/162.158.152.59|162.158.152.59]] 14:17, 15 February 2016 (UTC)
:It would appear that that's already been noted since I started writing that comment. Ignore me. --[[Special:Contributions/162.158.152.59|162.158.152.59]] 14:18, 15 February 2016 (UTC)
::It would appear you're not in New England. Temperature last night -14°F = -26°C = -0.244 rad F = -0.556 rad C. But others have noted this as well. [[User:Bob Stein - VisiBone|Bob Stein - VisiBone]] ([[User talk:Bob Stein - VisiBone|talk]]) 23:41, 15 February 2016 (UTC)
:::Even Manhattan, New York reached [http://www.wunderground.com/history/airport/KNYC/2016/2/14/DailyHistory.html -0.9°F] on Sunday, the first time it's been [http://www.weather.gov/media/okx/Climate/CentralPark/Below0DegreeDays.pdf below 0°F] there in a generation. We came within [http://www.weather.gov/media/okx/Climate/CentralPark/BiggestSnowstorms.pdf 1 part in 269] of tying the 2006 record for biggest snowstorm 3 weeks before this, broke the record for latest frost by 12 days with bitter cold 3 weeks before that, had cherry blossoms suicidally bloom on Christmas 10 days before that (because they thought it's spring) and that whole month was twice as many degrees above [http://www.weather.gov/media/okx/Climate/CentralPark/nycnormals.pdf normal] as the [http://www.weather.gov/media/okx/Climate/CentralPark/warmcoldmonths.pdf previous record warmest December]. We also broke the record for warmest November and September a few months ago. This is called [https://en.wikipedia.org/wiki/global_weirding global weirding.] (the more accurate name for global warming) [[Special:Contributions/199.27.129.11|199.27.129.11]] 04:28, 16 February 2016 (UTC)

Guys, we moved away from the Réaumur-scale: You can do the same for the Fahrenheit :-). --[[User:DaB.|DaB.]] ([[User talk:DaB.|talk]]) 14:20, 15 February 2016 (UTC)
: And we all moved away from the Rømer scale (what Reumer and Fahrenheit were both based on), 0F is 0Rø, 100C/80Reu is 80Rø). We even moved from the 100C-0C to 0C-100C since Celsius was a (half) crazy Swedish scientist who thought Reumer made sense if it was based on 100 instead of 80, and 100 was the freezing point (everybody ignores the second part of his scale).[[Special:Contributions/162.158.114.222|162.158.114.222]] 17:07, 15 February 2016 (UTC)
:: {{w|Ole_Rømer|Rømer}} was {{w|Danish}} -- Calling him Sweedish is an insult -- kind if the same insult as calling Cruz Canadian [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]]) 17:14, 15 February 2016 (UTC)
:::Then it was great that it was Celsius who was called a ''crazy Swedish scientist'' above, (and he was Swedish). Rømer is luckily more known for making the first quantitative measurements of the speed of light and not for his failed temperature scale. (I'm from Denmark and like the light part: He measured the hesitation of light ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 21:31, 15 February 2016 (UTC)

I'm pretty sure the only people who could possibly find "Fahrenheit" easier to spell than "Celsius" are those whose first written language was German. [[User:Promethean|Promethean]] ([[User talk:Promethean|talk]]) 01:31, 17 February 2016 (UTC)

Considering how cold New England is today, I'm pretty sure it's Fahrenheit. {{unsigned ip|108.162.218.71}}

Temperature is given in F. Look at which month it is. And how this is a darn cold winter (at least in Canada). [[Special:Contributions/108.162.216.43|108.162.216.43]] 14:32, 15 February 2016 (UTC)
: its currently 10F in the Boston area where Randall lives.
:: For people from the future, see [https://www.wunderground.com/history/airport/KBOS/2016/2/15/DailyHistory.html?req_city=Somerville&req_state=MA&reqdb.zip=02143&reqdb.magic=1&reqdb.wmo=99999 this historical data page for the day the comic was released] --[[Special:Contributions/108.162.214.59|108.162.214.59]] 19:00, 15 February 2016 (UTC)

What's with the "We lost a Mars probe over this" remark? [[Special:Contributions/141.101.104.113|141.101.104.113]] 14:33, 15 February 2016 (UTC)
: One of the Mars probes crashed into Mars because one of the NASA contractors was using US Customary units instead of SI units. [[User:Blaisepascal|Blaisepascal]] ([[User talk:Blaisepascal|talk]]) 14:39, 15 February 2016 (UTC)
:: Is there a reference for this ?? [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]]) 17:17, 15 February 2016 (UTC)
::: It was the Mars Climate Orbiter, it crashed in 1999 because software supplied by Lockheed Martin produced results in US customary units even though the specs called for metrics units. https://en.wikipedia.org/wiki/Mars_Climate_Orbiter [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 22:04, 15 February 2016 (UTC)

:The mars probe remark is in reference to a mistake in switching navigational numbers from American standard to metric (namely in that they didn't) which caused the probe to slam into the surface of mars. If I remember correctly that is.[[Special:Contributions/108.162.238.78|108.162.238.78]] 14:43, 15 February 2016 (UTC)
:: I remember when this happened, thinking "OK, Lockheed, time to get out your checkbook and cough up the entire cost of that probe and launch," though I expect their bought-and-paid-for pet legislators made sure that didn't happen. [[User:Miamiclay|Miamiclay]] ([[User talk:Miamiclay|talk]]) 21:23, 16 February 2016 (UTC)

I used to think that physicists prefer Kelvin, which is of course sort of based on Celsius. [[User:Jkrstrt|Jkrstrt]] ([[User talk:Jkrstrt|talk]]) 15:28, 15 February 2016 (UTC)

If he used Radians Fahrenheit, then 1 would be very close to earth's historical mean temperature for the period 1951 to 1980. [[Special:Contributions/173.245.55.64|173.245.55.64]] 16:19, 15 February 2016 (UTC)
: That sounds like it could almost be useful.... What is the temperature on the surface on the sun in Radians ? [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]]) 17:20, 15 February 2016 (UTC)
:: 96.08 [https://www.google.com/search?q=5505+degrees+in+radians radians] [https://www.google.com/search?q=temperature+of+surface+of+sun+in+degrees+Celsius Celsius], or 173.5 [https://www.google.com/search?q=9941+degrees+in+radians radians] [https://www.google.com/search?q=temperature+of+surface+of+sun+in+degrees+Fahrenheit Fahrenheit]. --[[Special:Contributions/108.162.214.59|108.162.214.59]] 19:00, 15 February 2016 (UTC)

"Easier to spell"? When editing, I had to correct myself from "Celcius" to "Celsius". I never get Fahrenheit wrong! [[User:Cosmogoblin|Cosmogoblin]] ([[User talk:Cosmogoblin|talk]]) 20:55, 15 February 2016 (UTC)

Can someone explain to me why Fahrenheit's scale is so much more popular across the Atlantic than in his home <s>city</s> <s>country</s> continent? [[Special:Contributions/162.158.102.219|162.158.102.219]] 21:37, 15 February 2016 (UTC)
:Same reason that the British used it. It was there. Unlike the Brits the US just never got around to change it [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]]) 02:18, 16 February 2016 (UTC)
:: As a Brit. I love it that the US was at one point the last bastion of the BTU (British Thermal Unit), I still see 17th century measures in some farming contexts - bushels though I think we both still agree that "Acres" are a much better measure area than the soul-destroying "hectare". :) [[Special:Contributions/162.158.34.147|162.158.34.147]] 08:22, 16 February 2016 (UTC)

Not being an instinctive science type, and on a tiny screen, I initially read the comic as "51 prefixes," and thought to myself "I could probably get from peta- to pico- in my head, but there are really 51 of those?" [[User:Miamiclay|Miamiclay]] ([[User talk:Miamiclay|talk]]) 02:46, 16 February 2016 (UTC)

Maybe one should include the explanation why both angles and temperature use the term "degree". "Degree" in measurement means, that the definition comes from a partition of a known interval. For angles, that is "a full circle is 360 degrees" and for temperature in Celsius that is "100°C is the range from freezing to boiling water". That is historical, because modern SI units are defined in terms of partitions as well.[[Special:Contributions/162.158.90.163|162.158.90.163]] 10:23, 16 February 2016 (UTC)
: I'm not a linguist, but I think that it to a certain degree (!) just means "partial", "part" or "step" -- I can agree with you partially by which I will agree with you to a degree -- any scale can in a similar degree be broken up where each part is a degree closer to the full outcome -- so in Temperature a degree is a step toward boiling, and your Masters degree is a step beyond your Bachelor towards your Doctoral degree -- in short it is to some degree just a duhdah word representing nothing but makes it easier to form a sentence around an abstract concept [[Special:Contributions/162.158.255.109|162.158.255.109]] 20:28, 16 February 2016 (UTC)

talking about weird us customs/units i think the way trailers and such specify release dates by season is terrible. 1. there are 2 hemispheres 2. internationally seasons may vary and it is rarely specified if its north or south seasons [[Special:Contributions/162.158.177.185|162.158.177.185]] 06:37, 17 February 2016 (UTC)

Personally, I like to give temperature in meV/particle [[User:Edo|Edo]] ([[User talk:Edo|talk]]) 14:29, 17 February 2016 (UTC)
: Do you mean MeV per non-frozen degree of freedom? The nitrogen in room-temperature air carries five-sixths the MeV/atom as argon in the same air at the same temperature. [[Special:Contributions/108.162.216.9|108.162.216.9]] 00:21, 18 February 2016 (UTC)

Haha, "degree of correlation". Nice. [[Special:Contributions/162.158.58.9|162.158.58.9]] 10:34, 27 December 2016 (UTC)

Wouldn't a physics major be more likely to be loyal to the Kelvin scale than to Celsius? Heck, even the Rankine scale is more scientific than celsius; it's by far the least popular of the four, but it's still more scientific than celsius due to the fact that it starts at absolute zero like Kelvin does

977: Map Projections

2015-03-28T03:34:55Z

173.245.54.209: /* Explanation */

{{comic
| number = 977
| date = November 14, 2011
| title = Map Projections
| image = map_projections.png
| titletext = What's that? You think I don't like the Peters map because I'm uncomfortable with having my cultural assumptions challenged? Are you sure you're not... ::puts on sunglasses:: ...projecting?
}}

==Explanation==
{{w|Map projection}}, or how to represent the spherical Earth surface onto a flat support (paper, screen...) to have a usable map, is a long-time issue with very practical aspects (navigation, geographical shapes and masses visualization, etc.) as well as very scientific/mathematical ones, involving geometry or even abstract algebra among other things. There is no universal solution to this problem: Any 2D map projection will always distort in a way the spherical reality. Many projections have been proposed in various contexts, each intending to minimize distortions for specific uses (for nautical navigation, for aerial navigation, for landmass size comparisons, etc.) but having drawbacks from other points of view. Some of them are more frequently used than others in mass media and therefore more well-known than others, some are purely historical and now deprecated, some are very obscure, etc.

[[Randall]] suggests here the idea that someone's "favorite" map projection can reveal aspects of their personality, then goes through a series of them to show what they can mean:

;Mercator
[[File:MercatorProjection.jpg|frame|The Mercator projection]]
:The {{w|Mercator projection}} was introduced by Flemish cartographer Gerardus Mercator in 1569. The main purpose of this map is that at any point the vertical and horizontal scales are the same, so locally i.e. considering only a small part of the map, geographical features (shapes, angles) are well represented, which helps a lot in recognizing them on-the-field, or for local navigation in that small part only. For this reason, that projection (or a close variant) is used in several online mapping services, such as Google Maps, which means that it is frequently encountered by the general public. No angle distortion also means that a straight line on the map corresponds to a course of constant bearing (direction), which was very useful for nautical navigation in the past (and thus made that projection very well-known).

:However, from a global point of view, this projection is radically incorrect in how it shows the size of landmasses (for instance Antarctica or Greenland seem gigantic), and furthermore, it always excludes a small region around each pole (otherwise the map would be of infinite height), so it doesn't provide a complete solution for the problem of map projection. The comic implies that people who like that projection aren't very interested with map issues, and typically use what they are offered without thinking much about it.

{{clear}}

;Van der Grinten
[[File:VanDerGrintenProjection.jpg|frame|The Van der Grinten projection]]
:The {{w|Van der Grinten projection}} is not much better than the Mercator. It was adopted by {{w|National Geographic}} in 1922 and was used until they updated to the Robinson projection in 1988.

:The Van der Grinten projection is circular as opposed to the Mercator projection. Circles look happier than squares, leading to the conclusion that people who like the projection are optimistic.

{{clear}}

;Robinson
[[File:RobinsonProjection.jpg|frame|The Robinson projection]]
:The {{w|Robinson projection}} was developed by {{w|Arthur H. Robinson}} as a map that was supposed to look nice and is often used for classroom maps. National Geographic switched to this projection in 1988, and used it for ten years, switching to the Winkel-Tripel in 1998.

:{{w|The Beatles}} was a rock band that enjoyed great commercial success in the 1960s. The Beatles, coffee, and running shoes suggest an ordinary, easygoing lifestyle paralleled by the projection.

{{clear}}

;Dymaxion
[[File:DymaxionProjection.jpg|frame|The Dymaxion projection]]
:Also called the Fuller Map, the {{w|Dymaxion Map}} takes a sphere and projects it onto an icosahedron, that is a polyhedron with 20 triangular faces. It is far easier to unwrap an icosahedron than it is to unwrap a sphere into a 2D object and has very little skewing of the poles.

:Randall associates the projection to geek subculture and niche markets:
:*{{w|Isaac Asimov}} was an American science-fiction writer, that (as well as publishing many textbooks) is considered the father of the modern concept of robots. He invented the {{w|Three Laws of Robotics}}. He also worked on more than 500 books throughout his career.
:*{{w|XML}} is the eXtensible Markup Language. It is used to represent data in a format that machines can read and understand, as well as being human-readable. In practice, XML is cumbersome to read.
:*{{w|Vibram FiveFingers|Toed-Shoes}} are a [[1065: Shoes|favorite]] of Randall's to pick on. In society they are seen as a {{w|geek}} clothing item.
:*Brought to the world by {{w|Dean Kamen}}, the {{w|Segway PT}} was supposed to be a device that changed the way cities were built. In reality, most principalities have put in place rules specifically against Segways, making them a frustration to own and use within the law (in some states in Australia, it is illegal to use them on public footpaths or roads). Also, the former owner of {{w|Segway Inc.}}, the late {{w|Jimi Heselden}}, accidentally rode his Segway off a cliff in 2010.
:*{{w|Virtual reality|3D goggles}} are a very niche market only pursued by enthusiasts. In the 1990s the promise of virtual realities was very tantalizing; many companies attempted to perfect it, but fell short of the mark. Also, the phrase "The grass is always greener on the other side of the fence" is relevant.
:*{{w|Dvorak Simplified Keyboard|Dvorak}} is an alternate keyboard layout to QWERTY. According to legend, QWERTY was invented to help keep manual typewriters from jamming (by placing the most used keys far from each other) but Dr. {{w|August Dvorak}} performed many studies and found the mathematically optimal keyboard layout to reduce finger travel for right handed typists. While some claim Dvorak is technically better than QWERTY, QWERTY had become the standard. All the keyboards were laid out in QWERTY format, and retraining the brain after becoming a touch typist is extremely difficult.

{{clear}}

;Winkel-Tripel
[[File:Winkel-TripelProjection.jpg|frame|The Winkel Tripel projection]]
:Proposed by {{w|Oswald Winkel}} in 1921, this map tried to reduce a set of three (German: Tripel) main problems with map projections: area, direction, and distance. The {{w|Kavrayskiy VII projection|Kavrayskiy projection}} is very similar to the Winkel Tripel and was used by the USSR, but very few in the Western world know of it.

:The comic links this projection to {{w|hipster}} subculture. The hipster stereotype is to avoid conforming to mainstream fashions. "Post-" refers to a variety of musical genres such as {{w|post-punk}}, {{w|post-grunge}}, {{w|post-minimalism}}, etc. that branch off of other genres.

{{clear}}

;Goode Homolosine
[[File:GoodeHomolosineProjection.jpg|frame|The Goode Homolosine projection]]
:The {{w|Goode homolosine projection}} takes a different approach to skewing a sphere into a roughly circular surface. An orange peel can be taken from an orange and flattened with fair success; this is roughly the procedure that {{w|John Paule Goode}} followed in creating this projection. Randall is suggesting that people who like this map also prefer relatively easy solutions to other things in life, despite those solutions having nuanced problems that are more difficult to address.

:Common people make arguments that if normal people would run the United States, then the US wouldn't be in the trouble it is. This is from the belief that career politicians are simply out to make money and will only act in the interest of their constituency when their continued easy life is threatened (usually around election time).

:Airline food is another, much maligned, problem. How do you store enough food to feed people on long airplane trips? The common solution is to use some kind of sub-standard microwaveable dinner. Randall is saying that the people in favor of the Goode Homolosine wonder why the airlines don't simply order meals from the restaurants in the airport, store that food, and serve it, rather than using frozen and microwaved food.

:Older cars burned oil like mad fiends, and oil back then would become corrosive to the innards of an engine, so oil had to be changed often. But, with the introduction of synthetic motor oil and better designed engines, new cars only need their oil changed about every 10,000 to 15,000 miles. A common conspiracy theory is that modern automobile oil manufacturers still recommend that car owners change their oil every 3,000-5,000 miles to "drum" up more business, even though that frequency is unnecessary.

:All of these references suggest that people who like the Goode Homolosine projection are fans of easy solutions to problems. However, the solutions would not necessarily work in practice. For instance, the restaurants might have trouble making enough food for the whole plane, and it could get cold before being served. Also, the air conditions [http://www.nbcnews.com/health/one-reason-airline-food-so-bad-your-own-tastebuds-6C10823522 aboard planes] can affect taste, so airlines say they optimize for this. And there is no such thing as a "normal" person, and if there were, he/she would have virtually no chance at actually getting into government office.

{{clear}}

;Hobo-Dyer
[[File:Hobo-DyerProjection.jpg|frame|The Hobo-Dyer projection]]
:The {{w|Hobo–Dyer projection}} was commissioned by Bob Abramms and Howard Bronstein and was drafted by Mick Dyer in 2002. It is a modified {{w|Behrmann projection}}. The goal was to be a more visually pleasing version of the Gall-Peters.

:As is discussed in the Gall-Peters explanation, the Gall-Peters was developed to be equal area, so that economically disadvantaged areas can at least take comfort in the fact that their country is represented correctly by area on maps.

:Randall associates the Hobo-Dyer projection to "crunchy granola" — a stereotype associated with vegetarianism, environmental activism, anti-war activism, liberal political leanings, and some traces of {{w|hippie}} culture.

:With the new general acceptance of homosexual, bisexual, and transgender persons, some have begun to invent gender-neutral pronouns so that when referring to a person whose gender is not known they cannot be offended by being referred to by the wrong pronouns. In {{w|Middle English}} 'they' and 'their' were accepted gender-less pronouns that could replace 'he', 'she' as well as be used to represent a crowd, but this usage is considered by some to be grammatically incorrect because of the plural/singular debate ([http://www.merriam-webster.com/video/0033-hisher.htm stupid Victorian Grammarians!]). None of the {{w|gender-neutral pronoun#Invented_pronouns|many attempts at popularizing gender-neutral pronouns}} have achieved any degree of success in the mainstream.

:Randall seems to associate the Hobo-Dyer projection with the Social Justice movements on social media sites such as Tumblr.

{{clear}}

;Plate Carrée
[[File:PlateCarreeProjection.jpg|frame|The Plate Carrée projection]]
:Also known as the {{w|Equirectangular projection}} has been in use since, apparently, 100 AD. The benefit of this projection is that latitude and longitude can be used as x,y coordinates. This makes it especially easy for computers to graph data on top of it.

:According to the comic, the projection appeals to people who find much beauty in simplicity.

{{clear}}

;A Globe!
[[File:GlobeProjection.jpg|frame|The Globe "projection"]]
:In any good discussion there has to be at least one smart-ass. This is a comic about map projections, that is, the science of taking a sphere and flattening it into 2 dimensions. The smart-ass believes that we shouldn't even try: a sphere is, tautologically, the perfect representation of a sphere.

:To quote ''{{w|The Princess Bride}}'': "Yes, you're very smart. Shut up."

{{clear}}

;Waterman Butterfly
[[File:WatermanButterflyProjection.jpg|frame|The Waterman Butterfly projection]]
:Similar to the Dymaxion, the {{w|Waterman butterfly projection}} turns a sphere into an octahedron, and then unfolds the net of the octahedron, which was devised by mathematician {{w|Waterman polyhedron|Steve Waterman}} based upon the work of {{w|Bernard J.S. Cahill}}

:Bernard Cahill published a [http://www.genekeyes.com/B.J.S._CAHILL_RESOURCE.html butterfly map] in 1909. Steve Waterman probably has the only extant "ready to go" map following the same general principles, though Gene Keys may not be far behind. Waterman has a poem with graphics in a similar vein to this xkcd comic that is worth reading.[http://watermanpolyhedron.com/worldmap.html]

:[http://www.progonos.com/furuti/MapProj/Normal/ProjPoly/projPoly2.html Polyhedral projections] like Cahill, Dymaxion or Waterman typically offer better accuracy of size, shape and area than flat projections, at the expense of compass directionality, connectedness, and other complications.

:The joke is that the person responding deeply understands map projections; anyone who knows of this projection is a person that Randall would like to get to know.

{{clear}}

;Peirce Quincuncial
[[File:PeirceQuincuncialProjection.jpg|frame|The Peirce Quincuncial projection]]
:The {{w|Pierce quincuncial projection}} was devised by {{w|Charles Sanders Peirce}} in 1879 and uses {{w|complex analysis}} to make a {{w|conformal mapping}} of the Earth, that conforms except for four points which would make up the south pole.

:{{w|Inception}} was a 2010 movie about {{w|meta}} {{w|lucid dream}}ing. It has a complex story that is difficult to follow and leaves the viewer with many questions at the end, and almost needs to be watched multiple times to be understood.

:The human brain is not well developed to deal with oddly obvious things. One example is that everyone has a skeleton, but everyone is surprised to see a part of their body represented by an X-Ray. Another is the fascinating complexity of the human hand, a machine which is amazingly complex, driven by a complex interplay of electrical and chemical signals; yet is the size of the hand and so useful.

{{clear}}

;Gall-Peters
[[File:Gall-PetersProjection.jpg|frame|The Gall-Peters projection]]
:The {{w|Gall-Peters projection}} is mired in controversy, surprising for a map. {{w|James Gall}} a 19th century clergyman presented this projection in 1855 before the {{w|British Association for the Advancement of Science}}. In 1967, the filmmaker {{w|Arno Peters}} created the same projection and presented it to the world as a "new invention" that put poorer, less powerful countries into their rightful proportions (as opposed to the Mercator). Peters played the marketing game and got quite a few followers of his map by saying it had "absolute angle conformality," "no extreme distortions of form," and was "totally distance-factual" in an age when society was very concerned about social justice. All of these claims were in fact false. The polar regions are horribly distorted, and south of the Mediterranean Sea is "taller" than it should be.

:Anyone who loves such a politically charged map that has become popular by way of marketing stunts, Randall would rather not have anything to do with.

{{clear}}

The title text makes a joke that goes to the familiar meme from ''{{w|CSI: Miami}}'', in which the star, David Caruso starts a sentence, then [[:Category:Puts on sunglasses|puts on his sunglasses]] and ends the sentence with a corny pun. In this case, the pun is on {{w|map projection}} and {{w|projection (psychology)|projection}} in Psychology. Psychologic projection is an immature defense mechanism wherein a person who is uncomfortable with their own thoughts and/or actions assumes that another also shares this thought or action and blames that person for thinking/behaving that way, removing some of the negative feelings they have towards themselves. The Sunglasses internet meme has been mentioned previously by xkcd in comics [[626]], [[524]] and possibly others.

==Transcript==
:What your favorite
:'''Map Projection'''
:says about you
:[All of these are organized as Title, a copy of the particular projection underneath, and what it says about you under that.]

:*Mercator
:**You're not really into maps.
:*Van der Grinten
:**You're not a complicated person. You love the Mercator projection; you just wish it weren't square. The Earth's not a square, it's a circle. You like circles. Today is gonna be a good day!
:*Robinson
:**You have a comfortable pair of running shoes that you wear everywhere. You like coffee and enjoy The Beatles. You think the Robinson is the best-looking projection, hands down.
:*Dymaxion
:**You like Isaac Asimov, XML, and shoes with toes. You think the Segway got a bad rap. You own 3D goggles, which you use to view rotating models of better 3D goggles. You type in Dvorak.
:*Winkel-Tripel
:**National Geographic adopted the Winkel-Tripel in 1998, but you've been a W-T fan since ''long'' before "Nat Geo" showed up. You're worried it's getting played out, and are thinking of switching to the Kavrayskiy. You once left a party in disgust when a guest showed up wearing shoes with toes. Your favorite musical genre is "Post–".
:*Goode Homolosine
:**They say mapping the Earth on a 2D surface is like flattening an orange peel, which seems enough to you. You like easy solutions.You think we wouldn't have so many problems if we'd just elect ''normal'' people to Congress instead of Politicians. You think airlines should just buy food from the restaurants near the gates and serve ''that'' on board. You change your car's oil, but secretly wonder if you really ''need'' to.
:*Hobo-Dyer
:**You want to avoid cultural imperialism, but you've heard bad things about Gall-Peters. You're conflict-averse and buy organic. You use a recently-invented set of gender-neutral pronouns and think that what the world needs is a revolution in consciousness.
:*Plate Carrée (Equirectangular)
:**You think this one is fine. You like how X and Y map to latitude and longitude. The other projections overcomplicate things. You want me to stop asking about maps so you can enjoy dinner.
:*A Globe!
:**Yes, you're very clever.
:*Waterman Butterfly
:**Really? You know the Waterman? Have you seen the 1909 Cahill Map it's based— ...You have a framed reproduction at home?! Whoa. ...Listen, forget these questions. Are you doing anything tonight?
:*Peirce Quincuncial
:**You think that when we look at a map, what we really see is ourselves. After you first saw ''Inception'', you sat silent in the theater for six hours. It freaks you out to realize that everyone around you has a skeleton inside them. You ''have'' really looked at your hands.
:*Gall-Peters
:**I ''hate'' you.

{{comic discussion}}
[[Category:Charts]]
[[Category:Maps‏‎]]
[[Category:Puts on sunglasses]]

Talk:1057: Klout

2014-09-29T11:04:39Z

173.245.54.209:

Klout is looong dead now. I suppose this means it's niche and hipster, and it's fine to use it now. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:53, 8 January 2013 (UTC)
:its not dead... just not really as trendy anymore.--[[User:Calvsie|Calvsie]] ([[User talk:Calvsie|talk]]) 21:01, 12 December 2013 (UTC)

Any possible meaning in the fact that "clout" can mean a blow from a hand? I think it might be related, considering the site is called Klout and Randall requests being clouted, in a manner of speaking...

Talk:1404: Quantum Vacuum Virtual Plasma

2014-08-06T14:08:23Z

173.245.54.209:

This is another one of Randall's knocks on pseudoscience... I've seen things like this before, where the guy puts 1000's of volts between a piece of tinfoil and a wire and is amazed that the thing (weighing a few grams) flies around. I'd search for it for reference but it's late here and I'm tired [[Special:Contributions/173.245.54.209|173.245.54.209]] 04:41, 6 August 2014 (UTC)

Here is the article referenced: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140006052.pdf [[Special:Contributions/199.27.128.83|199.27.128.83]] 05:24, 6 August 2014 (UTC)

20 kW is probably not from any reference, but just to summarize the history of claims in a vivid manner. The news surge was predicated about the prestige of the NASA organization attaching to any tiny lab under the aegis even though the paper was not in a peer-reviewed top journal but the very last presentation made at a multi-day conference. The NASA abstract differs wildly from the abstract of the same-date paper (or draft). http://rghost.net/57230791 \\ Other coverage from the skeptical side goes a bit into the history of similar microwaves-in-a-funny-shaped-can claims, where the reported thrust seems to diminish as the sensitivity of the measurement. http://scienceblogs.com/principles/2014/08/04/impossible-thruster-probably-impossible/ http://blogs.scienceforums.net/swansont/archives/15155 https://plus.google.com/117663015413546257905/posts/WfFtJ8bYVya https://plus.google.com/117663015413546257905/posts/C7vx2G85kr4 And finally may I close with a reference to Tooth-Fairy-(pseudo)science. http://www.skepdic.com/toothfairyscience.html [[Special:Contributions/199.27.128.118|199.27.128.118]] 05:41, 6 August 2014 (UTC)

What I'm missing is any reference to NASA being the third party to conduct this experiment and the third to witness these results. So while this looks an awful lot like Tooth-Fairy-science, it still raises the question of what the hell is going on there? Usually these pseudo-science experiments fail on reproduction or are only reproduced by non-scientists. - Nine [[Special:Contributions/141.101.104.59|141.101.104.59]] 06:46, 6 August 2014 (UTC)

More than a decade ago a few weird Italian guys already demostrated more than a twitch. Italian Army officials ("Esercito") were not that impressed. Their bizarre website http://Www.asps.it mostly dedicated to pseudo-religious stuff and fighting trolls, repeatedly states that technical details won't be shared until a patent is definitely granted. - [[Special:Contributions/108.162.229.182|108.162.229.182]] 06:58, 6 August 2014 (UTC)

;Fancy way of building an (ordinary) photon drive

A bit of context:

The idea of using virtual particles/quantum foam as your reaction mass has been around for a while. This turns out to just be an overly-complicated way of building a photon drive. If you accelerate a charge (real or virtual), it'll spit out photons. If you interact with charged virtual particles in a way that results in real thrust (by accelerating them), the photons you get out are real photons, and you pay for them in the usual manner (they cost you energy).

If you're building a photon drive, a heating element and a mirror work just as well.

As for the anomalous thrust in the experiments, there are a huge number of ways that you can get that from an experiment that isn't set up sufficiently carefully. The fact that two different experiments got vastly different measurements is a very big hint that something was flawed with at least one of them (possibly both).

Among other things, generating intense microwaves involves large electric currents. If any part of your apparatus is made of metal (and lots of this was), ordinary EM forces produce quite a few contaminating effects that are a royal pain to account for, especially if you're trying to measure an effect much weaker than they are. --[[Special:Contributions/108.162.246.221|108.162.246.221]] 09:26, 6 August 2014 (UTC)

I don't like how the sciencey posts use a lot of scientific terms without explaining them. I thought the purpose of this site was to make xkcd accessible for all people, science laymen included, but sometimes these explanations obfuscate more than they help. --[[Special:Contributions/141.101.99.188|141.101.99.188]] 10:46, 6 August 2014 (UTC)
: +1 -- I would suggest a rewrite of the explanation with that in mind. [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]]) 12:15, 6 August 2014 (UTC)

I don't see any "joke on quantum superposition". Either explain what the jokes are or remove that claim? --[[Special:Contributions/141.101.98.162|141.101.98.162]] 12:08, 6 August 2014 (UTC)

I see a sex joke in "If you pumped 20 kw into me, I'd twitch a lot" and "I do a lot of things".
:1. Sign your posts
:2. Remind me never to have sex with you
[[Special:Contributions/173.245.54.209|173.245.54.209]] 14:08, 6 August 2014 (UTC)

Talk:1404: Quantum Vacuum Virtual Plasma

2014-08-06T04:41:11Z

173.245.54.209: Created page with "This is another one of Randall's knocks on pseudoscience... I've seen things like this before, where the guy puts 1000's of volts between a piece of tinfoil and a wire and is ..."