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<font size=5px>''Welcome to the '''explain [[xkcd]]''' wiki!''</font>
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We currently have [[:Category:Comics|'''{{#expr:{{PAGESINCAT:Comics}}-3}}''' comic explanations]]. Come and [[List of all comics|add yours]]!
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We have collaboratively explained [[:Category:Comics|'''{{#expr:{{PAGESINCAT:Comics}}-9}}''' xkcd comics]],
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and only {{#expr:{{LATESTCOMIC}}-({{PAGESINCAT:Comics}}-9)}}
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== New here? ==
 
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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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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.
  
 
* If you're new to wikis like this, take a look at these help pages describing [[mw:Help:Navigation|how to navigate]] the wiki, and [[mw:Help:Editing pages|how to edit]] pages.
 
* If you're new to wikis like this, take a look at these help pages describing [[mw:Help:Navigation|how to navigate]] the wiki, and [[mw:Help:Editing pages|how to edit]] pages.
  
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* Discussion about various parts of the wiki is going on at [[Explain XKCD:Community portal]]. Share your 2¢!
  
* [[List of all comics]] contains a complete table of all xkcd comics so far and the corresponding explanations. The red links ([[like this]]) are missing explanations. Feel free to help out by creating them!
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* [[List of all comics]] contains a complete table of all xkcd comics so far and the corresponding explanations. The red links ([[like this]]) are missing explanations. Feel free to help out by creating them! '''[[Help:How to add a new comic explanation|Here's how]]'''.
  
 
== 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.
  
 
If you need assistance from an admin, feel free to leave a message on their personal discussion page. The list of admins is [[Special:ListUsers/sysop|here]].
 
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Revision as of 21:16, 24 March 2013

Welcome to the explain xkcd wiki!

We have collaboratively explained Expression error: Unrecognised punctuation character ",". xkcd comics, and only Expression error: Unrecognised punctuation character ",". (Expression error: Unrecognised punctuation character ",".%) remain. Add yours while there's a chance!

Latest comic

Go to this comic explanation

Altitude
"TURN OFF THE LASER GUIDE STAR" "WHY" "STAR CATS"
Title text: "TURN OFF THE LASER GUIDE STAR" "WHY" "STAR CATS"

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: '

In this comic, Randall is making fun of how oxygen deprivation can lead to reduced mental acuity. In this case, mental state of the researchers devolves as they approach the high altitude telescope, and reaches such a poor state when they arrive as to lead to juvenile (almost intoxicated) behavior. While "dizziness" and "lightheadedness" are common symptoms, the other behavior is not.

It must be also noted that the phrase "low oxygen" is technically incorrect, as the oxygen concentration remains constant regardless of the altitude and therefore this situation can not be termed as "low oxygen". The altitude sickness is caused by lowered atmospheric pressure which leads to smaller amount of oxygen actually delivered ("pushed") into bloodstream, while the amount of available oxygen in the air does not change with altitude.

The title text refers to a device used to make artificial reference points in the sky for astronomical observation. The reference points are created by shooting a powerful laser into the sky. The concern of the astronomer in the comic is that an imagined "star cat" may be attracted to the laser in the same way cats on Earth playfully chase laser beams projected on surfaces.

Transcript

Commentary: Because of low oxygen, astronomers working at high altitude telescopes may need to write down their plans ahead of time while at sea level.
[Some astronomers are inside a sea-level research facility]
Astronomer #1: Ok, let's head up to the observatory.
[The astronomers drive uphill]
Astronomer #1: When we reach the summit, we'll check the iodine cell and do a general calibration.
Astronomer #2: Sounds good.
[The astronomers have reached the high-altitude observatory]
Astronomer #1: My head feels funny.
Astronomer #2: Look at those telescope domes. I hope they don't roll away.
Astronomer #3: Maybe we should tape them down.
[The astronomers are inside one of the domes]
Astronomer #1: Haha, look at this mirror! My face is huge!
Astronomer #2: I see your face in the telescope! I discovered you!
Astronomer #3: Let's make out!



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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 complete table of all xkcd comics so far and the corresponding explanations. The red links (like this) are missing explanations. Feel free to help out by creating them! Here's how.

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, feel free to leave a message on their personal discussion page. The list of admins is here.

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