Main Page

Explain xkcd: It's 'cause you're dumb.
(Difference between revisions)
Jump to: navigation, search
(try DISPLAYTITLE)
(17 intermediate revisions by 5 users not shown)
Line 1: Line 1:
__NOTOC__
+
__NOTOC__{{DISPLAYTITLE:explain xkcd}}
{{DISPLAYTITLE:explain xkcd}}
+
 
+
 
<center>
 
<center>
<big>''Welcome to the '''explain xkcd''' wiki!''
+
<font size=5px>''Welcome to the '''explain [[xkcd]]''' wiki!''</font>
We already have [[:Category:Comics|'''{{#expr:{{PAGESINCAT:Comics}}-3}}''' comic explanations]]!</big>
+
  
(But there are still {{#expr:{{LATESTCOMIC}}-({{PAGESINCAT:Comics}}-3)}} to go. Come and [[List of all comics|add yours]]!)
+
We have collaboratively explained [[:Category:Comics|'''{{#expr:{{PAGESINCAT:Comics}}-9}}''' xkcd comics]],
 +
<!-- Note: the -9 in the calculation above is to discount subcategories (there are 8 of them as of 2013-02-27),
 +
    as well as [[List of all comics]], which is obviously not a comic page. -->
 +
and only {{#expr:{{LATESTCOMIC}}-({{PAGESINCAT:Comics}}-9)}}
 +
({{#expr: ({{LATESTCOMIC}}-({{PAGESINCAT:Comics}}-9)) / ({{PAGESINCAT:Comics}}-9) * 100 round 0}}%)
 +
remain. '''[[Help:How to add a new comic explanation|Add yours]]''' while there's a chance!
 
</center>
 
</center>
 
 
== Latest comic ==
 
== Latest comic ==
 
 
<div style="border:1px solid grey; background:#eee; padding:1em;">
 
<div style="border:1px solid grey; background:#eee; padding:1em;">
<span style="float:right;">[[{{LATESTCOMIC}}|'''Go to this comic''']]</span>
+
<span style="float:right;">[[{{LATESTCOMIC}}|'''Go to this comic explanation''']]</span>
 
<br clear="right">
 
<br clear="right">
 
{{:{{LATESTCOMIC}}}}
 
{{:{{LATESTCOMIC}}}}
Line 18: Line 18:
 
{{Talk:{{LATESTCOMIC}}}}
 
{{Talk:{{LATESTCOMIC}}}}
 
}}</div>
 
}}</div>
 +
 +
<small>''Is this out of date? {{Purge|Clicking here will fix that}}.''</small>
  
 
== New here? ==
 
== New here? ==
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.
+
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.
  
* Discussion about various parts of the wiki is going on at [[Explain XKCD:Community portal]]. Share your 2¢!
+
* 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!
+
* [[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.
+
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.
+
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]].
 
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]].
 
== Logo ==
 
 
Explain xkcd logo courtesy of [[User:Alek2407]].
 
  
 
[[Category:Root category]]
 
[[Category:Root category]]

Revision as of 05:35, 4 March 2013

Welcome to the explain xkcd wiki!

We have collaboratively explained 5 xkcd comics, and only 1862 (37240%) remain. Add yours while there's a chance!

Latest comic

Go to this comic explanation

Physics Confession
"You know lightning, right? When electric charge builds up in a cloud and then discharges in a giant spark? Ask me why that happens." "Why does tha--" "No clue. We think it's related to the hair thing."
Title text: "You know lightning, right? When electric charge builds up in a cloud and then discharges in a giant spark? Ask me why that happens." "Why does tha--" "No clue. We think it's related to the hair thing."

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: This is my first contribution it should be looked over by someone before the tag is removed.

A Theory of Everything is a goal of modern physics which would describe the properties of all fundamental particles and all the interactions between them. The current approach to a theory of everything is to describe how at high energies different interactions, such as electromagnetic forces and the strong and weak nuclear interactions merge. It would be possible, in principle to demonstrate how the rest of known physics can be derived from that quantum behavior. This approach, however, leaves many everyday phenomena which are not understood by modern physics, and many arguments against a theory of everything suggest that it won't ever be able to actually precisely describe everything. This comic lists several of those phenomena:

The fine detail of how ice skates work is unknown. It is known that there is a film of water between the skate and the ice that lubricates sliding, but scientists dispute how the film gets there. The commonly held belief is that it is caused by the pressure of the narrow skate; another belief is that the ice is melted by the friction of movement; but both fail to fully explain why skating continues to be possible at temperatures that are significantly below 0 Celsius. A better explanation is simply that, near the melting point of a solid, there will be a thin layer of liquid on the surface due to the dynamic equilibrium between the two phases, hence why ice is slippery. This happens regardless of the presence of skates. A more complete explanation is given in the linked article: Why is ice slippery?.

Physicists lack a clear understanding of the interactions involved in the flow of granular materials, such as sand. It is known that the behavior diverges greatly from that of a liquid, but it is unknown exactly how the flow works. PhysicsCentral:Granular Materials

Modern physics also doesn't understand what makes electrons move from one material to another when two materials are rubbed against each other (the triboelectric effect), and why the transfer takes more electrons in one direction than in the other. However, this happens, and it's the cause of static electricity, which can be seen when one rubs a latex rubber balloon against hair.

The title text mentions another common phenomenon that is poorly understood: the separation of charges in a cumulonimbus cloud. It is thought that interactions between ice and water transfer electrons, and then the different motion of ice (as hail) and water droplets in the cloud separates the charge. NOAA How lightning is created.

Randall modified the xkcd banner on July 25, 2017 to ask readers to "please tell your senators to vote against this health care bill. It will hurt people." This is accompanied by a phone number, 202-224-3121, and website, TrumpCare Ten.

https://imgs.xkcd.com/notes/call-senate.png

Transcript

[Megan is facing Ponytail and Cueball.]
Megan: I'll be honest: We physicists talk a big game about the theory of everything, but the truth is, we don't really understand why ice skates work, how sand flows, or where the static charge comes from when you rub your hair with a balloon.


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

New 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.

Personal tools
Namespaces

Variants
Actions
Navigation
Tools

It seems you are using noscript, which is stopping our project wonderful ads from working. Explain xkcd uses ads to pay for bandwidth, and we manually approve all our advertisers, and our ads are restricted to unobtrusive images and slow animated GIFs. If you found this site helpful, please consider whitelisting us.

Want to advertise with us, or donate to us with Paypal?