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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1714:_Volcano_Types&amp;diff=127876</id>
		<title>1714: Volcano Types</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1714:_Volcano_Types&amp;diff=127876"/>
				<updated>2016-09-27T17:49:29Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.79.49: /* Joke volcanoes */   Added reference to Moomins character and corrected some grammar.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 1714&lt;br /&gt;
| date      = August 1, 2016&lt;br /&gt;
| title     = Volcano Types&lt;br /&gt;
| image     = volcano_types.png&lt;br /&gt;
| titletext = It's hard living somewhere with antlions, because every time you find one of their traps, you feel compelled to spend all day constructing a tiny model of Jabba's sail barge next to it.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This comic presents a table of 12 different types of volcano. Split into 3 rows, the first 4 are authentic types of volcano; while the remaining 8 are parodies, one not even trying to represent a volcano but shows a real animal in its inverted trap cone.&lt;br /&gt;
&lt;br /&gt;
Volcanoes have featured in many xkcd comics, [http://www.explainxkcd.com/wiki/images/d/d5/1608_Entire_Volcano_plateau_zoom_out_extra.png most prominently] in the left part of the world (the Lord of the Rings section) of [[1608: Hoverboard]]. This comic's volcano looks like it could soon turn into a Somma volcano...&lt;br /&gt;
&lt;br /&gt;
===Real volcanoes===&lt;br /&gt;
* {{w|Cinder cone}}: small, steep-sided volcano formed of {{w|scoria}} and ash.&lt;br /&gt;
* {{w|Shield volcano}}: wide, rounded volcano formed of solidified lava flow.&lt;br /&gt;
* {{w|Stratovolcano}}: large volcano formed of layers (strata) from multiple eruptions.&lt;br /&gt;
* {{w|Somma volcano}}: new volcanic cone in the middle of an old collapsed volcanic crater.&lt;br /&gt;
&lt;br /&gt;
===Joke volcanoes===&lt;br /&gt;
* Metasomma volcano: nested layers of somma volcanos i.e. a whole set of new volcanoes (three in this situation) formed inside of old ones. &amp;quot;Meta&amp;quot; is a prefix that often denotes recursion.&lt;br /&gt;
* {{w|Waffle cone}}: type of pastry that ice cream is served in, related to volcano cones only insofar as they are the same shape, but typically the waffle cones are turned the other way up to keep the ice cream inside... If the tip of the waffle cone is not filled with solid chocolate or similar, then the contents may very well melt and run out the bottom like the smoke coming out at the very tip of the Waffle cone volcano.&lt;br /&gt;
* Science fair cone: common elementary science experiment that is often used as a project for science fairs. A structure is built to resemble a model volcano and is filled with a mix of baking soda, vinegar, and sometimes food coloring. The reaction between baking soda and vinegar quickly produces a large amount of carbon dioxide, creating a foam that overflows and mimics a volcanic eruption. In this picture, there are people running away from the volcano that are much smaller than it. This is likely a reference to [[1611: Baking Soda and Vinegar]], either the scale-model people on the first volcano, or real people running from the baking soda supervolcano (in this case two [[Cueball]]-like guys and [[Megan]]).&lt;br /&gt;
* Doot cone: This may likely be a reference to the meme of the [http://knowyourmeme.com/memes/skull-trumpet skull-trumpet] where the trumpet playing skull [https://www.reddit.com/r/OutOfTheLoop/comments/39xnk2/what_is_this_doot_thing_with_the_skeletons/cs7jdsa produces the sound Doot] as a large part of the meme.  Doot is also a fart sound, a doot cone could be just ejecting farts instead of lava.&lt;br /&gt;
** There has been some discussion about if this is likely, with someone referencing the [https://www.amazon.com/Florida-DOT-Approved-Traffic-Cone/dp/B009RUTKZA DOT cones], traffic cones approved by DOT or the {{w|Department of transportation}} in the US.&lt;br /&gt;
** Also there have been mention of ''{{w|Dot-com}}'' coming close to ''Doot cone''. The {{w|Dot-com bubble}} could be said to burst, just like this  volcano bursts/erupts.&lt;br /&gt;
* {{w|Antlion}}: a burrowing insect that digs a conical hole to catch prey at the larval stage. Maybe a reference to {{w|Formica Leo}}, a small volcanic crater in the Reunion island named after the antlion. Also, a boss villain in the video game Final Fantasy II at the bottom of a large cone of sand. Also appears in the [https://en.wikipedia.org/wiki/List_of_Moomin_(1990)_episodes Moomin (1990) TV series], as a literal black lion.&lt;br /&gt;
* Inverse Volcano: as the name implies, a regular volcano but reversed. A real volcano consists of solid rock on the outside, magma on the inside and spewing lava from the top.&lt;br /&gt;
* Ghost Vent: cone with ghosts coming out of it. It may be a reference to {{w|Scientology}}, where part of the faith states that the souls of aliens were stored in a volcano from which they later escaped, as described in the story of {{w|Xenu}}. The ghosts could also refer to the {{w|Pac-Man}} video game.&lt;br /&gt;
* Pedant's Bane: the joke is that people sometimes confuse magma and lava, which are different names for the same heated liquid rock. Magma becomes lava when it emerges from a volcano. The Pedant's Bane volcano is therefore impossible by definition, but if it were possible, then a {{w|pedant}} would have met his [https://en.wiktionary.org/wiki/bane#Etymology_1 bane] (i.e. his downfall), because when he corrected someone's description of this volcano, the pedant would actually be wrong. Alternatively, the illustration itself could be Pedant's Bane because a pedant would be lured into pointing out how wrong it is. This is a direct reference to the pedant in [[1405: Meteor]].&lt;br /&gt;
&lt;br /&gt;
The title text refers to a famous scene in ''{{w|Star Wars: Episode VI - Return of the Jedi}}'' where {{w|Jabba the Hutt}}  intends to feed {{w|Luke Skywalker}} to the {{w|Sarlacc|sarlacc}}, an underground creature that builds a huge funnel trap similar to that of an antlion. [[wikia:c:starwars:Khetanna|Jabba's distinctive sail barge]] features prominently in that scene, and when Randall comes upon an antlion he can't help himself starting to build a scale model next to the antlions inverted cone. Given how small antlions are, this will be very difficult to do, see for instance [[878: Model Rail]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Twelve drawings in four rows of different &amp;quot;volcano&amp;quot; types, the first four real, and some not even volcanoes of any sort, real or fake. Below each panel is a caption with the name of the drawn volcano. Some of the volcanoes have labels or sound written inside the panel. Each of the volcanoes has a baseline for the ground going straight a short distance over the bottom of each panel. All 11 volcanoes lie on top of this line, but some show the inside of the volcano going further into the ground.]&lt;br /&gt;
&lt;br /&gt;
:[Standard cone shaped volcano, with straight sides sloping up to a triangular shape, but with the tip of the cone cut off to form the central jagged edged crater. White smoke rises straight up and then drifts to the left forming three separate clouds.]&lt;br /&gt;
:Cinder Cone&lt;br /&gt;
&lt;br /&gt;
:[Flat rounded shaped volcano, as a part of a circle. There is not a real crater visible but from the center a thin plume of smoke rises up, drift drifts to the left and forms a small white cloud.]&lt;br /&gt;
:Shield Volcano&lt;br /&gt;
&lt;br /&gt;
:[This is the largest volcano. The tip of this volcano is similar to the first volcano, but with more uneven slopes and a bit smaller. The tip is clearly separated from the bottom section by a thin jagged line, and below the sides of the volcano decreases their slope, so they are less steep than the tip. Black smoke rises straight up from the crater and then drifts to the left in four thin lines.]&lt;br /&gt;
:Stratovolcano&lt;br /&gt;
&lt;br /&gt;
:[A wide volcano spans the entire panel, with a large central crater, with a bottom baseline far above the ground level. Just left of the middle of this crater is a standard smaller volcano cone, very similar to the shape of the tip in the previous panel. Even the smoke from this cones small crater is similar to the previous panels.]&lt;br /&gt;
:Somma Volcano&lt;br /&gt;
&lt;br /&gt;
:[The central part of this volcano is the same shape as the previous panel. This could be a zoom out, revealing that the large crater, is at the center on an even larger crater, which again is at the center of a crater that spans the panel. A plume of black smoke rises from the centeral cones crater, and drifts left as five white clouds.]&lt;br /&gt;
:Metasomma Volcano&lt;br /&gt;
&lt;br /&gt;
:[A perfect cone-shape, triangular and steep, with checkered ice cone waffle texture, even with a line indicating where the waffle has been a folded. It looks like a road up the volcano. Black smoke drift up from the sharp tip, no crater, and drifts left forming a small cloud separated from the rest of the smoke lines.]&lt;br /&gt;
:Waffle Cone&lt;br /&gt;
&lt;br /&gt;
:[Standard cone as in the first, but zoomed in so it fills the panel from left to right. The volcano's top has been cut much further down leaving a wide crater from which lava is pouring down the sides in large rivers of different width and length. To the left one long river has almost reached the ground. Cueball is running down the left side, and Megan is running after another Cueball with his arms up on the right side. There is a label with an arrow pointing to the lava:]&lt;br /&gt;
:Label: Baking soda and vinegar&lt;br /&gt;
:Science Fair Cone&lt;br /&gt;
&lt;br /&gt;
:[Standard cone like the previous, but with more jagged sloped and crater. This volcano erupts with a large explosion with fire and smoke coming out in all directions above the crater. A large sound is written above the explosion:]&lt;br /&gt;
:Sound. &amp;lt;big&amp;gt;'''Doooooot'''&amp;lt;/big&amp;gt;&lt;br /&gt;
:Doot Cone&lt;br /&gt;
&lt;br /&gt;
:[This is not a volcano, but the inverse, a cone down into the ground, the ground level no above the center of the panel. The slope down into this cone hole is straight, the ground above is more jagged. At the bottom of the hole sits a small animal with six legs and an open mouth piece sticking up out of the hole. Its fat body is hidden under the ground along with its legs.]&lt;br /&gt;
:Antlion&lt;br /&gt;
&lt;br /&gt;
:[Standard volcano cone like the previous volcano. It erupts and the central part shows how the erupting material comes up from below ground level (below the line at the bottom in which the cone it self stands). The erupting material is white rocks on black background. At the top several rocks is blown out of the crater top. The sides of the volcano is filled with blobs small and large, and stones rolling down the sides. There are two labels, each with two arrows. The first labels arrows points to the side of the volcano, the second labels arrows points to the erupting material inside and outside the volcano:]&lt;br /&gt;
:First label: Lava&lt;br /&gt;
:Second label: Solid rocks&lt;br /&gt;
:Inverse Volcano&lt;br /&gt;
&lt;br /&gt;
:[Standard cone like the doot cone, with a crater that bends down in the middle. From this crater eight white ghosts with two black eyes are rising, like the smoke, drifting left. The highest ghost is just reaching the edge at the top left of the panel. The lowest ghost is still inside the crater with its wavy lower parts.]&lt;br /&gt;
:Ghost Vent&lt;br /&gt;
&lt;br /&gt;
:[A standard cone like the doot cone. At the top there is lave over the outer edges, some of it running down the side. The inside of the volcano has been drawn like in the inverse volcano, so it is clear that the magma inside the volcano comes up from below ground level (below the line at the bottom in which the cone it self stands). There are two labels that contradicts the description above. The top label outside the volcano points to the lava with an arrow, and the bottom label inside the volcano points to the magma:]&lt;br /&gt;
:Top label: Magma&lt;br /&gt;
:Bottom label: Lava&lt;br /&gt;
:Pedant's Bane&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Food]] &amp;lt;!-- Waffle cone--&amp;gt;&lt;br /&gt;
[[Category:Animals]] &amp;lt;!-- Ant lion--&amp;gt;&lt;br /&gt;
[[Category:Star Wars]]&lt;br /&gt;
[[Category:Geography]]&lt;/div&gt;</summary>
		<author><name>141.101.79.49</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1673:_Timeline_of_Bicycle_Design&amp;diff=118864</id>
		<title>Talk:1673: Timeline of Bicycle Design</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:1673:_Timeline_of_Bicycle_Design&amp;diff=118864"/>
				<updated>2016-04-27T13:10:28Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.79.49: &lt;/p&gt;
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&lt;div&gt;I have deleted the entire paragraph with the Alternatively, explanation that this could be an analogue to the process of meiosis and pregnancy... It seems extremely far fetched to me... [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:01, 27 April 2016 (UTC)&lt;br /&gt;
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Seconded. This is a bizarre comic, and there will be a bizarre explanation, but that is clearly not it. [[Special:Contributions/141.101.70.181|141.101.70.181]] 13:04, 27 April 2016 (UTC)&lt;br /&gt;
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That 1860 bike looks like the {{w|American Star Bicycle}}, but the year doesn't match. [[Special:Contributions/141.101.79.49|141.101.79.49]] 13:10, 27 April 2016 (UTC)&lt;/div&gt;</summary>
		<author><name>141.101.79.49</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1594:_Human_Subjects&amp;diff=103912</id>
		<title>Talk:1594: Human Subjects</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:1594:_Human_Subjects&amp;diff=103912"/>
				<updated>2015-10-23T17:12:05Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.79.49: &lt;/p&gt;
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&lt;div&gt;The responses in panels 1, 3, and 4 show that Megan is trying to downplay the issues despite better knowledge. This is probably done to surprise the reader of the dialogue for better dramatic effect.  Sebastian --[[Special:Contributions/162.158.91.159|162.158.91.159]] 05:59, 23 October 2015 (UTC)&lt;br /&gt;
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In the second panel, Megan makes a good point which Ponytail misses. If the control group had a high incidence of arson, while the experimental group did not (and assuming that proper protocols were followed in assigning subjects to groups), there is a possibility that the drug has the side-effect of suppressing the urge for arson [[User:Sysin|Sysin]] ([[User talk:Sysin|talk]]) 06:45, 23 October 2015 (UTC)&lt;br /&gt;
: Where is the point? &amp;quot;People where arrested for arson&amp;quot; - &amp;quot;Side effects&amp;quot; - &amp;quot;They where in the control group&amp;quot;. That's not really a point for the side-effect of surpressing the urge for arson, is it? [[Special:Contributions/162.158.114.217|162.158.114.217]] 09:01, 23 October 2015 (UTC)&lt;br /&gt;
::If only people from the control group have been arrested, it is or could be. Sebastian --[[Special:Contributions/162.158.91.213|162.158.91.213]] 10:58, 23 October 2015 (UTC)&lt;br /&gt;
:::In this case both the control and the test group must be full of arsonists and the question is why did Ponytail let them lose to commit arson in the first place. May bye a double-blind test?[[User:Jkotek|Jkotek]] ([[User talk:Jkotek|talk]]) 13:29, 23 October 2015 (UTC)&lt;br /&gt;
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did [[Danish]] cut her hair? --[[Special:Contributions/108.162.216.8|108.162.216.8]] 11:22, 23 October 2015 (UTC)&lt;br /&gt;
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also, the title text could allude to the fact that sociopaths (or successful ones at least) tend to be really adept at getting other people to write off or engage in their behaviours. that is, the IRB, despite the apparent awfulness of the actions of the subjects, on meeting them thought they were pretty cool and people should lay off. --[[Special:Contributions/108.162.216.8|108.162.216.8]] 11:28, 23 October 2015 (UTC)&lt;br /&gt;
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Are those &amp;quot;citation needed&amp;quot; of any use? There is already a link to Wikipedia for sociopathy. Also, the invoked reasons (&amp;quot;Is an arsonist defined as a sociopath?&amp;quot;, &amp;quot;Is a masochist the same as a sociopath?&amp;quot;, &amp;quot;Is there an agreed upon definition of 'truly sociopathic behaviour', and is this it?&amp;quot;) are not sound to me. Sociopathy is defined as &amp;quot;antisocial behavior&amp;quot;, so are arson and sadism. [[Special:Contributions/141.101.66.23|141.101.66.23]] 11:32, 23 October 2015 (UTC)&lt;br /&gt;
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: I elected to simply remove references to sociopathy. I think the comic uses the phrase &amp;quot;awful&amp;quot; people, and I don't think it is necessary to instill the article with controversy by defining the people as sociopaths or any other term. Simply describing their traits and noting that it is unusual and why should be sufficient. [[Special:Contributions/108.162.216.31|108.162.216.31]] 14:01, 23 October 2015 (UTC)&lt;br /&gt;
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I realize that this area is for discussing the subject of the comic, but of all the comic strips out there this is the last one I would ever expect to include the &amp;quot;word&amp;quot; ''snuck''. [[Special:Contributions/108.162.216.26|108.162.216.26]] 13:23, 23 October 2015 (UTC)&lt;br /&gt;
:This area is mainly for discussing the improvement of the article. Unlike Wikipedia, here we also can discuss the subject of the comic. I addressed your comment, because I never had heard the word (no scare quotes) ''snuck'', but immediatly knew it was an alternate past tense of ''sneak''. I added this: ''Snuck'' is a dialectal past tense of ''sneak''.[http://dictionary.reference.com/help/faq/language/g08.html]. [[Special:Contributions/108.162.221.17|108.162.221.17]] 13:37, 23 October 2015 (UTC)&lt;br /&gt;
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::With respect, I don't think the word &amp;quot;snuck&amp;quot; is uncommon or in any way unique to this comic. I don't think there is any valid need to include a line defining a common verb. If people don't know what the word &amp;quot;snuck&amp;quot; is, dictionary websites are aplenty, but let's not turn this site into one of those ones where every word is a link to a definition. Unless it's jargon or technical or a proper noun that needs explanation, I don't think definitions or links are really needed. [[Special:Contributions/108.162.216.31|108.162.216.31]] 14:01, 23 October 2015 (UTC)&lt;br /&gt;
:: Why use a dictionary when Conan can do it for you?  :-)   https://www.youtube.com/watch?v=PmoHSczX8pU {{unsigned ip|108.162.238.84}}&lt;br /&gt;
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This comic could be referencing the growing realization that that the subjects of almost all psychology studies are not representative of the world population at large and of the great variety of humans found in the world. The subjects in psychology experiments are usually psychology students or other undergraduate students. Thus the subjects of these experiments are WIERD (Western Educated Industrialized Rich Democratic), these subjects are not close to worldwide normal. See this [//www.scientificamerican.com/podcast/episode/psychology-studies-biased-toward-we-10-08-07/ Scientific American article] for more information. Thus this biases the results of psychology experiments in systematic ways, just as having a bunch of sociopaths as subjects would also systematically effect the results.  --[[User:Benjamin|Benjamin]] ([[User talk:Benjamin|talk]]) 15:07, 23 October 2015 (UTC)&lt;br /&gt;
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Might this comic be related to the increased effect of placebo in medical studies? The &amp;quot;awful people&amp;quot; explanation is one of the ones mentioned in the article: http://www.bbc.com/news/magazine-34572482 [[Special:Contributions/141.101.79.49|141.101.79.49]]&lt;/div&gt;</summary>
		<author><name>141.101.79.49</name></author>	</entry>

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