explain xkcd - User contributions [en]

Talk:2120: Brain Hemispheres

2019-03-07T23:34:27Z

162.158.78.208:

https://en.wikipedia.org/wiki/Cerebral_hemisphere#Hemisphere_lateralization
If the left side controls the top half of the body, wouldn't that mean it also controls the right half? [[Special:Contributions/108.162.241.248|108.162.241.248]] 20:04, 6 March 2019 (UTC)
: It is uncontroversial that many senses and motoric functions are swapped between the right and left side. The anatomy of the nerve swaps can also be shown. But it is still under discussion, why evolution led to this swap (source: [https://en.wikipedia.org/wiki/Contralateral_brain Contralateral brain] and the even better organized German version [https://de.wikipedia.org/wiki/Kontralateralit%C3%A4t_des_Vorderhirns Kontralateralität des Vorderhirns]) Sebastian --[[Special:Contributions/172.68.110.46|172.68.110.46]] 08:41, 7 March 2019 (UTC)
: I'm referring exclusively to the hypothetical model posed by the comic; rather than the reality.

I don't think the sentence "all 3 claims are false" is accurate. I think the claim that the right side of your brain controls the left side of your body is accurate. It says so on the Wikipedia article mentioned and in several other sources. What the Wikipedia article disputes is whether or not "higher-level" functions are partitioned to one side of the brain. [[Special:Contributions/172.69.42.64|172.69.42.64]] 20:29, 6 March 2019 (UTC) Harrison
: With regard to the retina, the right half of the brain processes what the right half of each retina receives, and the left half processes what the left half of each retina receives (see e.g. [https://nba.uth.tmc.edu/neuroscience/m/s2/chapter15.html optic nerve]), but because our retina is behind the focal point of our lens so all the lightbeams cross and images hit the back of the eyeball upside-down and backwards, that means the halves of our brain process the opposite halves of what we see. But it's the same side of our body! I stopped learning neuroscience after we got to the optic nerve ;p [[Special:Contributions/108.162.221.95|108.162.221.95]] 21:48, 6 March 2019 (UTC)
: You must've stopped in the middle of the lesson, because the optic nerves split so that both brain halves get a copy of each eye. Your own link points it out in the figure as the "Optic chiasm".--[[User:Henke37|Henke37]] ([[User talk:Henke37|talk]]) 13:09, 7 March 2019 (UTC)
:: If you look closer, you can see how the left half of each eye (retina) goes only to the left half of the brain, and same for the right, even though both eyes do go to both sides. The split is by what is seen, not which eye sees it, which specially maps to the left side or right side of the eyeball. [[Special:Contributions/162.158.79.185|162.158.79.185]] 19:03, 7 March 2019 (UTC)

:I think the "right side of your brain controls the left side of your body" is NOT accurate, it's just closer to truth than the reverse. Some parts of perception and motor control are divided that way, but unless you have corpus callosotomy the high-level control is centralized and/or distributed regardless the side. Would be hard to synchronize both hands if not. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 02:05, 7 March 2019 (UTC)

Having survived an ischemic stroke on the left side of my brain, which temporarily paralyzed the right side of my body, this comic speaks to me like none other.

Is it possible that the title text is a reference to the whole "magnetic north is actually south" thing?

1973: Star Lore

2018-03-29T00:56:31Z

162.158.78.208: /* Explanation */

{{comic
| number = 1973
| date = March 28, 2018
| title = Star Lore
| image = star_lore.png
| titletext = That one is a variable star which pulses every 30 seconds. Its name comes from a Greek word meaning "smoke alarm."
}}

==Explanation==
{{incomplete|Created by a BOT running on a COMPUTER with TOO MANY STATUS LEDs - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

Computers, chargers, and other electronic items often have status lights in various colors. In a dark room, these lights appear as pinpricks of light, similar to constellations. Presumably Randall's room has many such items, though this may be like [[My Hobby]] in the sense that his room doesn't really look like that but he claims it does for humor value. It's also not clear whether this refers to Randall's bedroom (typical US usage of "my room" refers to one's bedroom) or some other room Randall spends a good deal of time in.

The comic's narrator is explaining how some of his lights remind him of stars, which gives him an opportunity to show off his knowledge of astronomic trivia. "The Five Sisters" is a reference to a pentagon-shaped constellation from Isaac Asimov's book ''Foundation's Edge'', though it could not have been 'known to the ancients' since it was less than 100 years old. It could also be in reference to the cluster of 5 lights next to the speech bubble, which is reinforced by the next bubble talking specifically about the red light in the cluster.

Interestingly, there are some green stars. Stars might look green due to a neighbouring star, but {{w|Green star (astronomy)|green stars are actually impossible}} due to the principle of black body radiation.

In the title text, the narrator describes his {{w|smoke alarm}} status light as a pulsing variable star. A smoke alarm is a device that detects smoke, which would indicate a fire. These are commonly placed in houses as a safety precaution. Typically, many smoke alarms have a status light that blinks to ensure that they are still functioning.

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

:[Assorted dots of various colors scattered around the panel, with two speech bubbles placed in the panel.]
:Speech bubble 1: That cluster was known to the ancients as the Five Sisters.
:The red one was a supergiant and will probably explode within the next million years.
:Speech bubble 2: Wow!

:[Caption below the panel:]
:There are too many status LEDs in my room.

{{comic discussion}}

[[Category:Comics with color]]

1865: Wifi vs Cellular

2017-08-18T15:42:13Z

162.158.78.208: /* Explanation */

{{comic
| number = 1865
| date = July 19, 2017
| title = Wifi vs Cellular
| image = wifi_vs_cellular.png
| titletext = According to the cable company reps who keep calling me, it's because I haven't upgraded to the XTREME GIGABAND PANAMAX FLAVOR-BLASTED PRO PACKAGE WITH HBO, which is only $5 more per month for the first 6 months and five billion dollars per month after that.
}}

==Explanation==
{{incomplete|First version... Links to X-finity and blast? Do NOT delete this tag too soon.}}

In this comic [[Randall]] remarks on how recent changes in {{w|Wi-Fi}} and {{w|Cellular network|Cellular data}} reliability have impacted his behavior. Wi-Fi technology has had several advantages over cellular data transmission due to Wi-Fi antennas' more ubiquitous distribution and ability to focus on high data transmission rates instead of broad signal coverage. However, as Wi-Fi has become more popular it is increasingly common to encounter Wi-Fi networks using outdated hardware, poorly organized or overburdened networks, and competition for bandwidth with other Wi-Fi devices. Meanwhile due to continued commercial investment in upgrading and expanding cellular networks and the more frequent consumer replacement of cellular handsets, the reliability of cellular data has continued to increase.

Randall notes that prior to 2015 he found that he could improve his internet connection by connecting to a Wi-Fi network instead of using cellular data. After 2015 however, he finds that in many cases he is able to get a stronger connection by disengaging his Wi-Fi connection and getting his data over a cellular connection. Prior to around 2008 he apparently didn't have a data plan -- so between around 1999 when he probably first got a {{w|smartphone}} (or possibly an earlier more primitive phone with a rudimentary browser) capable of transferring data, and up to around 2008, wifi was his only option for doing data on his phone.

Anything larger than a few kilobytes would previously require someone to switch off network data and connect to a wireless network. However, for a couple of years, cellular networks' data transmission rates have often become more reliable (albeit usually costlier for larger amount of data usage) while home Wi-Fi has remained fairly constant, meaning the cellular network is often the best choice to download a file.

Randall says it is ''weird from a networking point of view'', but in fact modern {{w|LTE (telecommunication)|LTE}} connections via the cellular network are faster ({{w|List_of_LTE_networks#USA, US Territories, Canada & Bolivia (FCC band plan)|up to 300 Mbit/s}}) than the common used Wi-Fi standards like 802.11b/g and 802.11n ({{w|IEEE_802.11#Protocol|54-150 Mbit/s}}). Faster Wi-Fi standards do exist but they are very rarely supported.

In the title text Randall takes a moment to rail against the often misleading promotional rates offered by cable internet providers. Such providers often attempt to up-sell consumer on internet packages with additional features. Here Randall juxtaposes several descriptors that might feature in a cable ad with several that refer to other things entirely. Xtreme Gigaband is a plausible internet package name, but might also be a reference to {{w|Comcast|Comcast's}} often derided "{{w|Xfinity}}" promotions. And while {{w|Panamax}} sounds like it may be a film term, it is actually a ship classification that denotes the maximum size ship that can safely pass through the {{w|Panama canal}}. (This could also be referencing the title text of [[1632: Palindrome]].) Seeing as the title text mentions the cable company, implying that they're also Randall's Internet Service Provider, being "with {{w|HBO}}" would mean including HBO in the cable channel line-up, and most likely include being able to stream TV shows made by HBO. Since HBO shows include {{w|Game of Thrones}}, whose 7th season started only 3 days earlier, it's plausible that this comic might have been inspired by Randall attempting to stream the season premiere. Flavor-Blasted is a food term often used in hyperbolic television food ad, but also could be a reference to Comcast Cable's "Blast!" internet packages. Pricing mentioned in title text is exaggerated with only $5 more during first six months, but costing 5 billion after, which is a reference to how service providers would often advertise a lower temporary price, while if you read the fine print the plan is much more costly once the limited time offer runs out, and {{w|discounting}} is simply used for marketing purposes. What's worse, these discounted periods (typically six months) often come with a much longer contract (typically two years) which imposes cancelation fees.

==Transcript==
:[A graph with two curves that cross each other. The two areas beneath the curve at the top, and down to either the X-axis or the other curve are shaded with vertical gray lines. The Y-axis has no label, but represents reliability, the X-axis is a timeline, with labels indicating years beneath the axis, without any ticks. The two curves are labeled with text interrupting the curves, in the second case using two lines for the text. In the left shaded area there is a label inside and the right shaded area the label is beneath the curves with an arrow pointing to the area. All this text and the arrow is gray. Above the curves there is a caption also in gray font:]
:To get something to load on my phone, sometimes I have to...

:Label left area: ...Connect to WiFi
:Label right area: ...Turn off WiFi

:Label curve one: Home WiFi reliability
:Label curve two: Cellular data reliability

:Year labels: 2000 2005 2010 2015 2020

:[Caption below the panel:]
:It seems weird from a networking point of view, but sometime in the last few years this flipped for me.

{{comic discussion}}

[[Category:Line graphs]]
[[Category:Timelines]]

Talk:1809: xkcd Phone 5

2017-03-11T21:05:50Z

162.158.78.208:

Darn, I was almost fast enough to get the cot-caught merger explanation in there. That being said, now I really want a phone with a Zelda style hook shot. [[User:Andyd273|Andyd273]] ([[User talk:Andyd273|talk]]) 14:02, 10 March 2017 (UTC)
--I just came to say the same. I want the hookshot! [[Special:Contributions/172.68.78.100|172.68.78.100]] 14:05, 10 March 2017 (UTC)

It's way more likely that this refers to the Zelda hook shot, as it looks like a little tube where some sort of grappling hook could potentially shoot out from. It doesn't look like it could shoot out basketballs, though. [[Special:Contributions/108.162.238.17|108.162.238.17]] 15:28, 10 March 2017 (UTC)

It looks like "Hook Shot" is a clever suggestion for a feature name: the lens attaches to the camera with a 'hook' so you can take great 'shot's. [[User:Schnitz|Schnitz]] ([[User talk:Schnitz|talk]]) 18:01, 10 March 2017 (UTC)

It's worth noting that most of the Loran-C system (which presumably is what would be used on a phone) has been decommissioned in the last decade or so, including all the stations operated by the US and Canadian governments. [[Special:Contributions/162.158.62.201|162.158.62.201]] 15:52, 10 March 2017 (UTC)

'''Notice''' the new [[what if?]] ''{{what if|156|Electrofishing for Whales}}'' released the day before this comic! Only 9 days between releases... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:33, 10 March 2017 (UTC)
:OFF TOPIC: Can you imagine how much Randall must have been laughing while looking at all those funny electrofishing sources he is citing... ROFL--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:44, 10 March 2017 (UTC)

LORAN -- I was under the impression that the US LORAN base stations were turned off in 2010. Perhaps a few years later in some other parts of the world. So a LORAN reciever is of less use than a chocolate teapot.--[[Special:Contributions/162.158.62.21|162.158.62.21]] 18:08, 10 March 2017 (UTC)

I understand "Can Feel Pain" as the next step up for Siri (or Google or Alexa or...) to become conscious. [[Special:Contributions/108.162.219.160|108.162.219.160]] 18:18, 10 March 2017 (UTC)

The phone is slightly round. What could this mean? It's not like Galaxy Edge.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:44, 10 March 2017 (UTC)

I think part of the joke of "Squelch knob" is that a lot of people simply don't know what a squelch knob does. May as well put this mysterious knob on a phone, too. Does anyone else agree? [[Special:Contributions/162.158.106.18|162.158.106.18]] 01:36, 11 March 2017 (UTC)

;Layout question
We have five xkcd phone explanations. Three of them are using a bullet list and two (including this) use a table. I prefer the bullets, not only because it's easier for editors. A table cell where the text needs a couple of lines is either bad text or bad layout. I think it's the layout. What do you think?--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:57, 10 March 2017 (UTC)
:I like the table but I do not wish to use the time to change any of these explanations. Also it is not important to me but I would prefer the five explanations used the same layout. So I would not object if all where made into bullets lists. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 08:14, 11 March 2017 (UTC)

It was really funny for me personally that this comic came out this Friday as right before I came home and saw the new xkcd phone I had just picked up my new smartphone. It was "just" a Samsung so great I didn't see this first because then I would have been disappointed by the few features my new phone has. But at least it is now easier to make such a comment like this on the phone --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:17, 11 March 2017 (UTC)

Pokemon spoiler inside (rot 13): Va rcvfbqr 16 bs gur Cbxrzba bevtvany frevrf, Nfu, Zvfgl, Oebpx, Wrffvr, naq Wnzrf, nybat jvgu gurve znal Cbxrzba, ner genccrq ba n obng. Orvat irel uhatel, gurl pbafvqre rngvat Wnzrf'f Zntvxnec, hagvy Zrbjgu ovgrf Zntvxnec...naq oernxf uvf grrgu.[[Special:Contributions/162.158.78.208|162.158.78.208]] 21:05, 11 March 2017 (UTC)

Talk:1800: Chess Notation

2017-02-17T21:14:25Z

162.158.78.208:

How did the conversation end in a draw? Was it by agreement? Was it actually "drawn" as mentioned below?[[Special:Contributions/162.158.79.185|162.158.79.185]] 20:17, 17 February 2017 (UTC)

The move to score conversations itself was probably a blunder, but it seems that, since the sentence is copied verbatim, that the move to declare your scoring of conversations to somebody else is a blunder. Because that's weird and nobody wants to hear about it. [[Special:Contributions/173.245.50.72|173.245.50.72]] 18:35, 17 February 2017 (UTC)

So... This is just a really excellent pun? "Drawn" conversation?[[Special:Contributions/162.158.75.22|162.158.75.22]] 15:59, 17 February 2017 (UTC)
:The pun gets better when you think about drawn '''and''' stalemated conversations, both of which will be scored 0.5 - 0.5. A stalemate occurs when no legal moves are possible, but the opponent isn't in check.--[[Special:Contributions/162.158.150.82|162.158.150.82]] 16:26, 17 February 2017 (UTC)

I have 2 questions does Randall know about this wiki and if there is an "incomplete" comic and I complete the explanation or other issue can I delete the incomplete notification thingy or does an admin have to do that?[[User:XFez|XFez]] ([[User talk:XFez|talk]]) 17:45, 17 February 2017 (UTC)
:Anyone can remove the incomplete tag. Likewise, anyone can add it back again if they feel the explanation can be improved. [[Special:Contributions/162.158.62.225|162.158.62.225]] 18:37, 17 February 2017 (UTC)
::My answer at the last comic:
::Hi [[User:XFez|XFez]], sorry for the late reply but this was hard to find. I don't know if Randall knows..., but maybe he does. But he does NOT support this wiki in any way -- like he does not here: [http://forums.xkcd.com http://forums.xkcd.com] (while everything is now on https that board isn't ;) ). So there is no final explanation and he says 100 points! To your second question: You are allowed to remove the "incomplete tag". But the given criteria is not enough, often that simple text covers not all. Please check also the discussion page. So, when you are not sure just change the criteria text and mention it at the discussion page. And for older comics you probably should talk to someone else here because nobody checks every comic every day.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:19, 17 February 2017 (UTC)
:::Randall knows of this page for sure. How often he goes here for a laugh is hard to say, but I would guess he would never comment on anything. But who knows if he checks here to see if has made a mistake. Sometimes errors are corrected after they get mentioned here. Often very early in Randall's time zone. Who knows if he sees this here. He has given a 100 % proof that he knows about this page in his official transcript. He actually made a direct link to Explain xkcd for a better transcript than his own. Alas there was not transcript until this year, where I made it: See this [[Payloads#Trivia|trivia]] under [[Payloads]], that I added earlier in 2017. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 19:45, 17 February 2017 (UTC)

Isn't the mouseover text saying that it was a blunder to tell white hat that he is scoring it because that will cause white hat to actively compete, instead of simply losing because he didn't know there was a game? [a guest and fan]{{unsigned ip|141.101.107.12}}

Why is the figure on the left not wearing a beret? [[Special:Contributions/162.158.78.208|162.158.78.208]] 21:14, 17 February 2017 (UTC)