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<big>''Welcome to the '''explain xkcd''' wiki!''
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<font size=5px>''Welcome to the '''explain [[xkcd]]''' wiki!''</font>
We already have [[:Category:Comics|'''{{#expr:{{PAGESINCAT:Comics}}-3}}''' comic explanations]]!</big>
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(But there are still {{#expr:{{LATESTCOMIC}}-({{PAGESINCAT:Comics}}-3)}} to go. Come and [[List of all comics|add yours]]!)
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We have an explanation for all [[:Category:Comics|'''{{#expr:{{PAGESINCAT:Comics|R}}-13}}''' xkcd comics]],
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    as well as [[List of all comics]] and the pages it has been split across, which are obviously not comic pages.
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and only {{PAGESINCAT:Incomplete articles|R}}
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({{#expr: {{PAGESINCAT:Incomplete articles|R}} / {{LATESTCOMIC}} * 100 round 0}}%) [[:Category:Incomplete articles|are incomplete]]. Help us finish them!
 
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Feel free to sign up for an account and contribute to the explain xkcd wiki!  We need explanations for comics, characters, themes, memes and everything in between. If it is referenced in an [http://www.xkcd.com xkcd] web comic, it should be here.
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<div style="float:right; margin: 0 0 1em 1em">{{Special:ContributionScores/10/7/nosort,notools}}<div style="font-size:0.85em; width:25em; font-style:italic">[[Special:ContributionScores|Lots of people]] contribute to make this wiki a success. Many of the recent contributors, listed above, have just joined. You can do it too! Create your account [[Special:UserLogin/signup|here]].</div></div>
  
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*[[List of all comics]] contains a table of most recent xkcd comics and links to the rest, and the corresponding explanations. There are incomplete explanations listed [[:Category:Incomplete articles|here]]. Feel free to help out by expanding them!
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== Rules ==
 
== Rules ==
Don't be a jerk. There are a lot of comics that don't have set in stone explanations, feel free to put multiple interpretations in the wiki page for each comic.
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Don't be a jerk. There are a lot of comics that don't have set in stone explanations; feel free to put multiple interpretations in the wiki page for each comic.
  
 
If you want to talk about a specific comic, use its discussion page.
 
If you want to talk about a specific comic, use its discussion page.
  
Please only submit material directly related to&mdash;and helping everyone better understand&mdash;xkcd... and of course ''only'' submit material that can legally be posted (and freely edited.)  Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users posting such are at risk of being blocked.
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Please only submit material directly related to —and helping everyone better understand— xkcd... and of course ''only'' submit material that can legally be posted (and freely edited). Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users who repeatedly post such content will be blocked.
 
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Revision as of 03:05, 4 September 2013

Welcome to the explain xkcd wiki!

We have an explanation for all 1 xkcd comics, and only 0 (0%) are incomplete. Help us finish them!

Latest comic

Go to this comic explanation

Local News
Will there ever be a physics term greater than 'tachyonic antitelephone?' According to this message from the future, the answer is 'no.'
Title text: Will there ever be a physics term greater than 'tachyonic antitelephone?' According to this message from the future, the answer is 'no.'

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: More detail on quantum mechanics needed.

Typical news broadcasts are divided into local, national, and global news segments. The broadcast in this comic has been broken into real local, (about city council election) and a new type of news; nonlocal. Rather than focusing on national or global news, the nonlocal segment deals with news of a nonlocality nature; more likely dealing with causal nonlocality.

A "tachyon" is a theoretical or thought-experiment particle which travels faster than the speed of light. It has many strange properties, including being able to go back in time. This is how the newscaster is able to send a beam back in time to kill her past self. The comic does not explain the paradox of how someone who died in the past could still be alive. This is just one of many paradoxes that arises as soon as some kind of time travel is involved, a recurring theme in xkcd. Alternatively, it could be referring to a message from the future, where the newsanchor kills a version of her after the present but before the tachyon beam is created.

A Tachyonic antitelephone is a theoretical device which would allow messages to be sent to the past. The title text, itself a message sent to the past, informs us that physics will indeed never have a term greater than "Tachyonic antitelephone".

Transcript

[A blonde[citation needed] female news anchor is sitting behind a table with her arms resting on the tabletop.]
Newscaster: In local news, city council elections were held today.
Newscaster: In nonlocal news, I killed my past self with a tachyon beam.


Is this out of date? Clicking here will fix that.

New here?

Last 7 days (Top 10)

Lots of people contribute to make this wiki a success. Many of the recent contributors, listed above, have just joined. You can do it too! Create your account here.

You can read a brief introduction about this wiki at explain xkcd. Feel free to sign up for an account and contribute to the wiki! We need explanations for comics, characters, themes, memes and everything in between. If it is referenced in an xkcd web comic, it should be here.

  • List of all comics contains a table of most recent xkcd comics and links to the rest, and the corresponding explanations. There are incomplete explanations listed here. Feel free to help out by expanding them!
  • If you see that a new comic hasn't been explained yet, you can create it: Here's how.
  • We sell advertising space to pay for our server costs. To learn more, go here.

Rules

Don't be a jerk. There are a lot of comics that don't have set in stone explanations; feel free to put multiple interpretations in the wiki page for each comic.

If you want to talk about a specific comic, use its discussion page.

Please only submit material directly related to —and helping everyone better understand— xkcd... and of course only submit material that can legally be posted (and freely edited). Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users who repeatedly post such content will be blocked.

If you need assistance from an admin, post a message to the Admin requests board.

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