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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2009:_Hertzsprung-Russell_Diagram&amp;diff=159086</id>
		<title>2009: Hertzsprung-Russell Diagram</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2009:_Hertzsprung-Russell_Diagram&amp;diff=159086"/>
				<updated>2018-06-21T05:25:58Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2009&lt;br /&gt;
| date      = June 20, 2018&lt;br /&gt;
| title     = Hertzsprung-Russell Diagram&lt;br /&gt;
| image     = hertzsprung_russell_diagram.png&lt;br /&gt;
| titletext = The Hertzsprung-Russell diagram is located in its own lower right corner, unless you're viewing it on an unusually big screen.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a RED GIANT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
The {{w|Hertzsprung–Russell diagram}} is a scatterplot showing absolute luminosities of stars against its effective temperature or color. It's generally used to understand a star's age.&lt;br /&gt;
&lt;br /&gt;
The axes are labeled in {{w|Kelvin}} (degrees {{w|Celsius}} above {{w|absolute zero}}) for {{w|effective temperature}} and, in a unlike many Hertzsprung–Russell diagrams, {{w|Watts}} for {{w|luminosity}}. While most Hertzsprung–Russell diagrams are labelled in units of {{w|solar luminosity}} or {{w|absolute magnitude}}, all three are perfectly valid measures of {{w|luminosity}}, which refers to the total power emitted by the star (or other body). {{w|Effective temperature}} refers to temperature of a blackbody with the same surface area and luminosity. This is meant to provide an estimate of the surface temperature of the object.&lt;br /&gt;
&lt;br /&gt;
Regular Hertzsprung–Russell diagrams cover ranges of about 1,000K to 30,000K, and what is labeled on this diagram as 10&amp;lt;sup&amp;gt;21&amp;lt;/sup&amp;gt; to 10&amp;lt;sup&amp;gt;33&amp;lt;/sup&amp;gt; watts&amp;amp;mdash;i.e. the upper-left corner. Extended diagrams increase the luminosity range only to include the &amp;quot;Brown Dwarfs&amp;quot;. This diagram has been extended to much lower magnitudes on both axes. The joke comes from the absurdity of a diagram meant for stars including much smaller objects, such as planets ... and astronomers.&lt;br /&gt;
&lt;br /&gt;
Though not included in the diagram, the title text notes that the screen displaying the diagram would probably be plotted somewhere in the lower right corner due to its (relatively) low brightness and heat output. Bigger screens have a higher power output (in terms of luminosity) and are thus positioned further towards the diagram's top corner. An &amp;quot;unusually big screen&amp;quot; would have to be something like a JumboTron for its luminosity to put it outside of the lower right corner.&lt;br /&gt;
==Table==&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
!Item&lt;br /&gt;
!Effective Temperature&lt;br /&gt;
!Luminosity&lt;br /&gt;
!Explanation / Comments&lt;br /&gt;
|-&lt;br /&gt;
|Betelgeuse&lt;br /&gt;
|3200 K&lt;br /&gt;
|1.6 * 10&amp;lt;sup&amp;gt;31&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Vega&lt;br /&gt;
|10,000 K&lt;br /&gt;
|1.8 * 10&amp;lt;sup&amp;gt;28&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Sun&lt;br /&gt;
|5800 K&lt;br /&gt;
|3.6 * 10&amp;lt;sup&amp;gt;26&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Proxima Centauri&lt;br /&gt;
|2700 K&lt;br /&gt;
|2.0 * 10&amp;lt;sup&amp;gt;23&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|HD 189733b&lt;br /&gt;
|2100 K&lt;br /&gt;
|4.8 * 10&amp;lt;sup&amp;gt;21&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Interior of a hydrogen bomb during detonation&lt;br /&gt;
|~10&amp;lt;sup&amp;gt;8&amp;lt;/sup&amp;gt; K&lt;br /&gt;
|~10&amp;lt;sup&amp;gt;20&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Jupiter&lt;br /&gt;
|285 K&lt;br /&gt;
|1.2 * 10&amp;lt;sup&amp;gt;18&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Venus&lt;br /&gt;
|330 K&lt;br /&gt;
|5.0 * 10&amp;lt;sup&amp;gt;17&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|It appears that this might have been misplaced on the temperature axis, being far too closely placed to France and to Earth. In fact Venus is at 735K where Earth has a mean of 287K.&lt;br /&gt;
|-&lt;br /&gt;
|Earth&lt;br /&gt;
|300 K&lt;br /&gt;
|3.0 * 10&amp;lt;sup&amp;gt;17&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Mars&lt;br /&gt;
|255&lt;br /&gt;
|2.0 * 10&amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Moon&lt;br /&gt;
|300 K&lt;br /&gt;
|1.2 * 10&amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Nuclear Fireball&lt;br /&gt;
|8000 K&lt;br /&gt;
|2.0 * 10&amp;lt;sup&amp;gt;14&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|France&lt;br /&gt;
|300 K&lt;br /&gt;
|2.0 * 10&amp;lt;sup&amp;gt;14&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|This is part of Earth (and more precisely a part of Europe), the same temperature as Earth, but less luminous in proportion to its surface area. Including this may be a joke referencing the two possible meanings of ‘Europa’ (see the next entry).&lt;br /&gt;
|-&lt;br /&gt;
|Europa&lt;br /&gt;
|90 K&lt;br /&gt;
|3.5 * 10&amp;lt;sup&amp;gt;14&amp;lt;/sup&amp;gt; W&lt;br /&gt;
|While this term could refer to Europe (a part of Earth, of which France (the previous entry) is a further part), the temperature and luminosity are both too small for that, so it must refer to the moon of Jupiter instead.&lt;br /&gt;
|-&lt;br /&gt;
|Lightning Bolt&lt;br /&gt;
|30,000 K&lt;br /&gt;
|30 GW&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Ivanpah Solar Plant Salt Tank&lt;br /&gt;
|1200 K&lt;br /&gt;
|1.2 GW&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Medium-sized Lava Lake&lt;br /&gt;
|800 K&lt;br /&gt;
|32 MW&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Cruise Ship&lt;br /&gt;
|325 K&lt;br /&gt;
|30 MW&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Campfire&lt;br /&gt;
|870 K&lt;br /&gt;
|7.0 kW&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Blue Whale&lt;br /&gt;
|280 K&lt;br /&gt;
|78 kW&lt;br /&gt;
|(Must be average surface temperature as whales are warm-blooded @ ~100F, also the power seems high compared to what I can find)&lt;br /&gt;
|-&lt;br /&gt;
|Arc Lamp&lt;br /&gt;
|65,000 K&lt;br /&gt;
|150 W&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|Lightbulb&lt;br /&gt;
|4800 K&lt;br /&gt;
|75 W&lt;br /&gt;
|The temperature value here refers to colour temperature, not physical temperature.&lt;br /&gt;
|-&lt;br /&gt;
|LED Bulb&lt;br /&gt;
|5800 K&lt;br /&gt;
|8 W&lt;br /&gt;
|The temperature value here refers to colour temperature, not physical temperature.&lt;br /&gt;
|-&lt;br /&gt;
|Astronomer&lt;br /&gt;
|310 K&lt;br /&gt;
|100 W&lt;br /&gt;
| The body temperature of a human (astronomer or otherwise) is about 310K (37°C)&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
[A scatter plot is shown, with the x-axis labeled Effective Temperature (in degrees Kelvin, and the y-axis Luminosity (watts).]&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2009:_Hertzsprung-Russell_Diagram&amp;diff=159085</id>
		<title>Talk:2009: Hertzsprung-Russell Diagram</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2009:_Hertzsprung-Russell_Diagram&amp;diff=159085"/>
				<updated>2018-06-21T05:24:22Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
How the heck is a lava cake more luminous than a campfire? {{unsigned ip|108.162.219.28}}&lt;br /&gt;
:It's Lava Lake, as in a large puddle of lava.[[User:Cgrimes85|Cgrimes85]] ([[User talk:Cgrimes85|talk]]) 15:45, 20 June 2018 (UTC)&lt;br /&gt;
:: Now the real question is, Why isn't lava cake included on the diagram?!?! [[User:Veleek|Veleek]] ([[User talk:Veleek|talk]]) 23:54, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
As it's a logarithmic scale, is it more correct to say the plot been expanded to 1 on both axes? [[User:Cgrimes85|Cgrimes85]] ([[User talk:Cgrimes85|talk]]) 15:47, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
It seems Randall thinks an astronomer is about as bright as a lightbulb, probably due to the Hertzsprung-Russell diagram itself! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 15:52, 20 June 2018 (UTC)&lt;br /&gt;
:A daily food consumption of average human is about 100W when spread out over 24 hours&lt;br /&gt;
::It might actually be about that bright, but in the infrared spectrum. http://elte.prompt.hu/sites/default/files/tananyagok/InfraredAstronomy/ch01s04.html [[Special:Contributions/108.162.246.89|108.162.246.89]] 20:54, 20 June 2018 (UTC)&lt;br /&gt;
:But they are no where near as hot!&lt;br /&gt;
::You seem to overestimate the attractiveness of most lightbulbs. I've only seen a few that I would consider really hot.&lt;br /&gt;
[[Special:Contributions/172.69.198.10|172.69.198.10]] 20:57, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
While wattage is used as an informal proxy for bulb brightness, there is not a 1-to-1 relationship between power consumption and light output. Incandescent bulbs in the United States were commonly labeled with both watts consumed and lumens output to aid consumers in choosing efficient bulbs.&lt;br /&gt;
&lt;br /&gt;
{{w|Ivanpah Solar Power Facility|Ivanpah}} doesn't have a salt tank. Presumably he meant the boiler, and/or was confusing it with {{w|Crescent Dunes Solar Energy Project|Crescent Dunes}}.&lt;br /&gt;
[[User:Wwoods|Wwoods]] ([[User talk:Wwoods|talk]]) 17:29, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the explanation, but what's the joke?&lt;br /&gt;
&lt;br /&gt;
The title text says &amp;quot;The Hertzsprung-Russell diagram is located in its own lower right corner, unless you're viewing it on an unusually big screen.&amp;quot; But it's clearly on the top left corner... Am I missing something? [[Special:Contributions/108.162.219.106|108.162.219.106]] 18:47, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
:Why would it be at the top left...? The diagram itself is not particularly luminous, so would not be at the top, and its apparent temperature is quite low, so it would not be on the left.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Why is a blue whale considered more luminous than a campfire? Blue whales don't generate any light.&lt;br /&gt;
&lt;br /&gt;
In one of the interesting parts of this diagram not that many mundane objects (or at least smaller than earth objects) are much hotter than most stars (surface temperature)... Not mentioned now.--[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 20:33, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think the current explanation is still taking some of the graph too literally, thereby missing some of the jokes. After all, Randall creates comics, sometimes using innuendo or subtlety to make a point. I still think some of the items on the graph are plotted using luminosity as a measure of &amp;quot;brightness&amp;quot; in the sense of smartness. No offense intended, but he must have had a reason for including France below the planets and the blue whale above the astronomer. Furthermore, the title text is likely talking about the actual HR diagram not being very &amp;quot;bright&amp;quot; in the same way the astronomer is in the lower-right corner of the graph, except when it is displayed on a jumbotron. If you're an astronomer, you might not like hearing this, but the meaning of the HR diagram is difficult to grasp correctly. To leave out any mention of smartness is likely missing the most significant jokes in the comic. Please feel free to disagree, but remember it's still just a comic! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 00:37, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
: More specifically to my point, this part of the explanation&lt;br /&gt;
:: &amp;quot;the title text notes that the screen displaying the diagram would probably be plotted...&amp;quot;&lt;br /&gt;
: is not correct. The title text states the diagram itself would probably be plotted in the lower-right corner, not the screen displaying it - the screen was only related to the second part of the title text! This IS the primary joke in the comic and likely why Randall is making fun of it in the first place. This is also likely the reason for the astronomer to ALSO be plotted in this corner - I doubt that is just a coincidence. Maybe Randall was too subtle for his point to get through to readers! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 04:37, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
: Just in case I'm also being too subtle, I think Randall is saying that the HR diagram is neat to look at (as in really cool) but also stupid (as in not very bright), putting it in the lower-right corner of itself (cool and dim)! There, I said it! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 04:45, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
How come this diagram says an LED bulb is hotter than a lightbulb, and both are hotter than a campfire? That doesn't seem right. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 01:49, 21 June 2018 (UTC)&lt;br /&gt;
:The confusion is coming from the fact that the arrow at the top is pointing toward lower temperatures. I'm not sure if this is intentional, or if it is a mistake, but seems to be confusing a lot of people (including myself until I read the actual numbers)[[User:Probably not Douglas Hofstadter|Probably not Douglas Hofstadter]] ([[User talk:Probably not Douglas Hofstadter|talk]]) 03:09, 21 June 2018 (UTC)&lt;br /&gt;
:: I noticed that the arrow was pointing in a confusing direction, but LED bulb is to the left of the campfire. The diagram clearly says it's hotter. I'm very confused by this comic. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 05:22, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
: The location of the LED and Lightbulb temperatures may be related to the actual light source points of these objects (diode junction and wire filament) rather than the outer shells that we can touch. I don't know enough about their internal temperatures to say for sure, but that might explain their positions. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 05:05, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
:Worked it out, it's referring to the colour temperature. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 05:24, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
I'm pretty sure there shouldn't be a table in the transcript? I've moved it, but now the table needs to be filled and the transcript needs some work. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 03:10, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
Venus' temperature is correct. Randall is using planetary equilibrium temperature &amp;lt;ref&amp;gt;https://en.wikipedia.org/wiki/Planetary_equilibrium_temperature&amp;lt;/ref&amp;gt; [[User:Astronorn|Astronorn]] ([[User talk:Astronorn|talk]]) 04:56, 21 June 2018 (UTC)&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2009:_Hertzsprung-Russell_Diagram&amp;diff=159084</id>
		<title>Talk:2009: Hertzsprung-Russell Diagram</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2009:_Hertzsprung-Russell_Diagram&amp;diff=159084"/>
				<updated>2018-06-21T05:22:24Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
How the heck is a lava cake more luminous than a campfire? {{unsigned ip|108.162.219.28}}&lt;br /&gt;
:It's Lava Lake, as in a large puddle of lava.[[User:Cgrimes85|Cgrimes85]] ([[User talk:Cgrimes85|talk]]) 15:45, 20 June 2018 (UTC)&lt;br /&gt;
:: Now the real question is, Why isn't lava cake included on the diagram?!?! [[User:Veleek|Veleek]] ([[User talk:Veleek|talk]]) 23:54, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
As it's a logarithmic scale, is it more correct to say the plot been expanded to 1 on both axes? [[User:Cgrimes85|Cgrimes85]] ([[User talk:Cgrimes85|talk]]) 15:47, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
It seems Randall thinks an astronomer is about as bright as a lightbulb, probably due to the Hertzsprung-Russell diagram itself! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 15:52, 20 June 2018 (UTC)&lt;br /&gt;
:A daily food consumption of average human is about 100W when spread out over 24 hours&lt;br /&gt;
::It might actually be about that bright, but in the infrared spectrum. http://elte.prompt.hu/sites/default/files/tananyagok/InfraredAstronomy/ch01s04.html [[Special:Contributions/108.162.246.89|108.162.246.89]] 20:54, 20 June 2018 (UTC)&lt;br /&gt;
:But they are no where near as hot!&lt;br /&gt;
::You seem to overestimate the attractiveness of most lightbulbs. I've only seen a few that I would consider really hot.&lt;br /&gt;
[[Special:Contributions/172.69.198.10|172.69.198.10]] 20:57, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
While wattage is used as an informal proxy for bulb brightness, there is not a 1-to-1 relationship between power consumption and light output. Incandescent bulbs in the United States were commonly labeled with both watts consumed and lumens output to aid consumers in choosing efficient bulbs.&lt;br /&gt;
&lt;br /&gt;
{{w|Ivanpah Solar Power Facility|Ivanpah}} doesn't have a salt tank. Presumably he meant the boiler, and/or was confusing it with {{w|Crescent Dunes Solar Energy Project|Crescent Dunes}}.&lt;br /&gt;
[[User:Wwoods|Wwoods]] ([[User talk:Wwoods|talk]]) 17:29, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the explanation, but what's the joke?&lt;br /&gt;
&lt;br /&gt;
The title text says &amp;quot;The Hertzsprung-Russell diagram is located in its own lower right corner, unless you're viewing it on an unusually big screen.&amp;quot; But it's clearly on the top left corner... Am I missing something? [[Special:Contributions/108.162.219.106|108.162.219.106]] 18:47, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
:Why would it be at the top left...? The diagram itself is not particularly luminous, so would not be at the top, and its apparent temperature is quite low, so it would not be on the left.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Why is a blue whale considered more luminous than a campfire? Blue whales don't generate any light.&lt;br /&gt;
&lt;br /&gt;
In one of the interesting parts of this diagram not that many mundane objects (or at least smaller than earth objects) are much hotter than most stars (surface temperature)... Not mentioned now.--[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 20:33, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think the current explanation is still taking some of the graph too literally, thereby missing some of the jokes. After all, Randall creates comics, sometimes using innuendo or subtlety to make a point. I still think some of the items on the graph are plotted using luminosity as a measure of &amp;quot;brightness&amp;quot; in the sense of smartness. No offense intended, but he must have had a reason for including France below the planets and the blue whale above the astronomer. Furthermore, the title text is likely talking about the actual HR diagram not being very &amp;quot;bright&amp;quot; in the same way the astronomer is in the lower-right corner of the graph, except when it is displayed on a jumbotron. If you're an astronomer, you might not like hearing this, but the meaning of the HR diagram is difficult to grasp correctly. To leave out any mention of smartness is likely missing the most significant jokes in the comic. Please feel free to disagree, but remember it's still just a comic! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 00:37, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
: More specifically to my point, this part of the explanation&lt;br /&gt;
:: &amp;quot;the title text notes that the screen displaying the diagram would probably be plotted...&amp;quot;&lt;br /&gt;
: is not correct. The title text states the diagram itself would probably be plotted in the lower-right corner, not the screen displaying it - the screen was only related to the second part of the title text! This IS the primary joke in the comic and likely why Randall is making fun of it in the first place. This is also likely the reason for the astronomer to ALSO be plotted in this corner - I doubt that is just a coincidence. Maybe Randall was too subtle for his point to get through to readers! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 04:37, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
: Just in case I'm also being too subtle, I think Randall is saying that the HR diagram is neat to look at (as in really cool) but also stupid (as in not very bright), putting it in the lower-right corner of itself (cool and dim)! There, I said it! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 04:45, 21 June 2018 (UTC)&lt;br /&gt;
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How come this diagram says an LED bulb is hotter than a lightbulb, and both are hotter than a campfire? That doesn't seem right. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 01:49, 21 June 2018 (UTC)&lt;br /&gt;
:The confusion is coming from the fact that the arrow at the top is pointing toward lower temperatures. I'm not sure if this is intentional, or if it is a mistake, but seems to be confusing a lot of people (including myself until I read the actual numbers)[[User:Probably not Douglas Hofstadter|Probably not Douglas Hofstadter]] ([[User talk:Probably not Douglas Hofstadter|talk]]) 03:09, 21 June 2018 (UTC)&lt;br /&gt;
:: I noticed that the arrow was pointing in a confusing direction, but LED bulb is to the left of the campfire. The diagram clearly says it's hotter. I'm very confused by this comic. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 05:22, 21 June 2018 (UTC)&lt;br /&gt;
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: The location of the LED and Lightbulb temperatures may be related to the actual light source points of these objects (diode junction and wire filament) rather than the outer shells that we can touch. I don't know enough about their internal temperatures to say for sure, but that might explain their positions. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 05:05, 21 June 2018 (UTC)&lt;br /&gt;
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I'm pretty sure there shouldn't be a table in the transcript? I've moved it, but now the table needs to be filled and the transcript needs some work. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 03:10, 21 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
Venus' temperature is correct. Randall is using planetary equilibrium temperature &amp;lt;ref&amp;gt;https://en.wikipedia.org/wiki/Planetary_equilibrium_temperature&amp;lt;/ref&amp;gt; [[User:Astronorn|Astronorn]] ([[User talk:Astronorn|talk]]) 04:56, 21 June 2018 (UTC)&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2009:_Hertzsprung-Russell_Diagram&amp;diff=159063</id>
		<title>Talk:2009: Hertzsprung-Russell Diagram</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2009:_Hertzsprung-Russell_Diagram&amp;diff=159063"/>
				<updated>2018-06-21T01:49:14Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
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&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
How the heck is a lava cake more luminous than a campfire? {{unsigned ip|108.162.219.28}}&lt;br /&gt;
:It's Lava Lake, as in a large puddle of lava.[[User:Cgrimes85|Cgrimes85]] ([[User talk:Cgrimes85|talk]]) 15:45, 20 June 2018 (UTC)&lt;br /&gt;
:: Now the real question is, Why isn't lava cake included on the diagram?!?! [[User:Veleek|Veleek]] ([[User talk:Veleek|talk]]) 23:54, 20 June 2018 (UTC)&lt;br /&gt;
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As it's a logarithmic scale, is it more correct to say the plot been expanded to 1 on both axes? [[User:Cgrimes85|Cgrimes85]] ([[User talk:Cgrimes85|talk]]) 15:47, 20 June 2018 (UTC)&lt;br /&gt;
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It seems Randall thinks an astronomer is about as bright as a lightbulb, probably due to the Hertzsprung-Russell diagram itself! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 15:52, 20 June 2018 (UTC)&lt;br /&gt;
:A daily food consumption of average human is about 100W when spread out over 24 hours&lt;br /&gt;
::It might actually be about that bright, but in the infrared spectrum. http://elte.prompt.hu/sites/default/files/tananyagok/InfraredAstronomy/ch01s04.html [[Special:Contributions/108.162.246.89|108.162.246.89]] 20:54, 20 June 2018 (UTC)&lt;br /&gt;
:But they are no where near as hot!&lt;br /&gt;
[[Special:Contributions/172.69.198.10|172.69.198.10]] 20:57, 20 June 2018 (UTC)&lt;br /&gt;
&lt;br /&gt;
While wattage is used as an informal proxy for bulb brightness, there is not a 1-to-1 relationship between power consumption and light output. Incandescent bulbs in the United States were commonly labeled with both watts consumed and lumens output to aid consumers in choosing efficient bulbs.&lt;br /&gt;
&lt;br /&gt;
{{w|Ivanpah Solar Power Facility|Ivanpah}} doesn't have a salt tank. Presumably he meant the boiler, and/or was confusing it with {{w|Crescent Dunes Solar Energy Project|Crescent Dunes}}.&lt;br /&gt;
[[User:Wwoods|Wwoods]] ([[User talk:Wwoods|talk]]) 17:29, 20 June 2018 (UTC)&lt;br /&gt;
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I understand the explanation, but what's the joke?&lt;br /&gt;
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The title text says &amp;quot;The Hertzsprung-Russell diagram is located in its own lower right corner, unless you're viewing it on an unusually big screen.&amp;quot; But it's clearly on the top left corner... Am I missing something? [[Special:Contributions/108.162.219.106|108.162.219.106]] 18:47, 20 June 2018 (UTC)&lt;br /&gt;
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:Why would it be at the top left...? The diagram itself is not particularly luminous, so would not be at the top, and its apparent temperature is quite low, so it would not be on the left.&lt;br /&gt;
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Why is a blue whale considered more luminous than a campfire? Blue whales don't generate any light.&lt;br /&gt;
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In one of the interesting parts of this diagram not that many mundane objects (or at least smaller than earth objects) are much hotter than most stars (surface temperature)... Not mentioned now.--[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 20:33, 20 June 2018 (UTC)&lt;br /&gt;
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I think the current explanation is still taking some of the graph too literally, thereby missing some of the jokes. After all, Randall creates comics, sometimes using innuendo or subtlety to make a point. I still think some of the items on the graph are plotted using luminosity as a measure of &amp;quot;brightness&amp;quot; in the sense of smartness. No offense intended, but he must have had a reason for including France below the planets and the blue whale above the astronomer. Furthermore, the title text is likely talking about the actual HR diagram not being very &amp;quot;bright&amp;quot; in the same way the astronomer is in the lower-right corner of the graph, except when it is displayed on a jumbotron. If you're an atronomer, you might not like hearing this, but the meaning of the HR diagram is difficult to grasp correctly. To leave out any mention of smartness is likely missing the most significant jokes in the comic. Please feel free to disagree, but remember it's still just a comic! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 00:37, 21 June 2018 (UTC)&lt;br /&gt;
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How come this diagram says an LED bulb is hotter than a lightbulb, and both are hotter than a campfire? That doesn't seem right. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 01:49, 21 June 2018 (UTC)&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1997:_Business_Update&amp;diff=157552</id>
		<title>Talk:1997: Business Update</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:1997:_Business_Update&amp;diff=157552"/>
				<updated>2018-05-24T04:55:15Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
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&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
&amp;quot;Our customers are experiencing rapid growth&amp;quot;&lt;br /&gt;
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Literally?&lt;br /&gt;
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[[Special:Contributions/162.158.38.184|162.158.38.184]] 18:23, 23 May 2018 (UTC)anon&lt;br /&gt;
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:Probably. Also, excited for comic 2000! [[User:StillNotOriginal|S&amp;lt;sup&amp;gt;t&amp;lt;sup&amp;gt;i&amp;lt;sup&amp;gt;l&amp;lt;sup&amp;gt;l&amp;lt;/sup&amp;gt;&amp;lt;/sup&amp;gt;&amp;lt;/sup&amp;gt;&amp;lt;/sup&amp;gt;&amp;lt;sup&amp;gt;Not&amp;lt;/sup&amp;gt;]][[User talk:StillNotOriginal|&amp;lt;sup&amp;gt;&amp;lt;sub&amp;gt;Original&amp;lt;/sub&amp;gt;&amp;lt;/sup&amp;gt;]]  18:37, 23 May 2018 (UTC)&lt;br /&gt;
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Panel 2 would suggest that they are making ice (in a fridge?) and that the thermostat glitch caused them to become liquid; additionally that the faucet in the kitchen sink has stopped running. {{unsigned|Richardelguru}}&lt;br /&gt;
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The formatting seems odd. Is it just me? (Chrome on mobile) [[Special:Contributions/162.158.103.95|162.158.103.95]] 20:16, 23 May 2018 (UTC)&lt;br /&gt;
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The title text sounds like some weird Only-in-Beret-Guy-Land variant on a Nigerian Prince scam. [[Special:Contributions/162.158.62.225|162.158.62.225]] 20:51, 23 May 2018 (UTC)&lt;br /&gt;
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&amp;quot;Beret Guy claims she has made several appearances in their video conferences, which may be possible if someone has hacked their video feed to play footage from the 2002 movie.&amp;quot;&lt;br /&gt;
Surely it's simpler than that. They're watching a video feed, and the plot of the Ring is that Samara appears in videos to tell people they're going to die. Their videoconference is cursed, not hacked. --[[Special:Contributions/162.158.38.130|162.158.38.130]] 23:42, 23 May 2018 (UTC)&lt;br /&gt;
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:I get the vibe that her contributions are nothing sentient or original, she is literally the recording from the series, and that these &amp;quot;contributions&amp;quot; are still markedly better than whatever their normal meeting fare is.[[Special:Contributions/162.158.106.48|162.158.106.48]] 01:36, 24 May 2018 (UTC)&lt;br /&gt;
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''The EU told me I'm the heir to some ancient European throne that makes me exempt from the GDPR''&lt;br /&gt;
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I wonder if this is a reference to the claim that [https://www.irs.gov/pub/irs-drop/rr-06-20.pdf Native Americans don't have to pay tax] in US? [[User:Sikachu|Sikachu]] ([[User talk:Sikachu|talk]]) 00:28, 24 May 2018 (UTC)&lt;br /&gt;
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I think when the comic talks about stocks, it's talking about shares and not pillories. Generally companies have a constant number of stocks, which only changes during some kind of financial restructuring like a split. The idea that they're producing them faster than ever before is therefore absurd. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 04:55, 24 May 2018 (UTC)&lt;br /&gt;
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Currently the explanation is a bit hard to read. Because everything in the first 2 panels is mentioned as individual sentences within a single paragraph, it makes it hard to add further details on these items. My suggestion is to transform this into a bullet point list or a table. I'd do it myself but I'm new to explainxkcd and don't want to tread on anyone's toes. [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 04:55, 24 May 2018 (UTC)&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1924:_Solar_Panels&amp;diff=148736</id>
		<title>Talk:1924: Solar Panels</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:1924:_Solar_Panels&amp;diff=148736"/>
				<updated>2017-12-05T04:09:25Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
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Sorry, but who, except the odd American, has *empty space* next to anything that belongs to him? ;-) --[[Special:Contributions/162.158.89.199|162.158.89.199]] 20:47, 4 December 2017 (UTC)&lt;br /&gt;
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And really, if it moves, just keep the diesel engine in it, or switch to hybrid if you can. Batteries that are charged from power plants running on fossile fuel are an ecological nightmare. And car batteries are usually charged overnight, when solar panels are dead. --[[Special:Contributions/162.158.89.199|162.158.89.199]] 20:54, 4 December 2017 (UTC)&lt;br /&gt;
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I think that the reference to solar panels on roads in the title text could also be talking about the disaster that is solar roadways.&lt;br /&gt;
[[Special:Contributions/108.162.221.244|108.162.221.244]] 22:50, 4 December 2017 (UTC)&lt;br /&gt;
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I don't think it's appropriate to use rooftops as an example of where solar panels should not go when the title text of the comic specifically uses rooftops as an example of a good place for solar panels. How many people have an empty field near their house? I also think it's worth mentioning [https://en.wikipedia.org/wiki/Smart_highway#Photovoltaic_pavement Solar Freakin' Roadways] [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 04:08, 5 December 2017 (UTC)&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1924:_Solar_Panels&amp;diff=148735</id>
		<title>Talk:1924: Solar Panels</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:1924:_Solar_Panels&amp;diff=148735"/>
				<updated>2017-12-05T04:08:20Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
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&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
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Sorry, but who, except the odd American, has *empty space* next to anything that belongs to him? ;-) --[[Special:Contributions/162.158.89.199|162.158.89.199]] 20:47, 4 December 2017 (UTC)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
And really, if it moves, just keep the diesel engine in it, or switch to hybrid if you can. Batteries that are charged from power plants running on fossile fuel are an ecological nightmare. And car batteries are usually charged overnight, when solar panels are dead. --[[Special:Contributions/162.158.89.199|162.158.89.199]] 20:54, 4 December 2017 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think that the reference to solar panels on roads in the title text could also be talking about the disaster that is solar roadways.&lt;br /&gt;
[[Special:Contributions/108.162.221.244|108.162.221.244]] 22:50, 4 December 2017 (UTC)&lt;br /&gt;
&lt;br /&gt;
I don't think it's appropriate to use rooftops as an example of where solar panels should not go when the title text of the comic specifically uses rooftops as an example of a good place for solar panels. How many people have an empty field near their house? [[User:YM Industries|YM Industries]] ([[User talk:YM Industries|talk]]) 04:08, 5 December 2017 (UTC)&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1097:_A_Hypochondriac%27s_Nightmare&amp;diff=9777</id>
		<title>1097: A Hypochondriac's Nightmare</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1097:_A_Hypochondriac%27s_Nightmare&amp;diff=9777"/>
				<updated>2012-08-20T06:03:24Z</updated>
		
		<summary type="html">&lt;p&gt;YM Industries: &lt;/p&gt;
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&lt;div&gt;{{comic&lt;br /&gt;
| number    = 1097&lt;br /&gt;
| date      = August 20, 2012&lt;br /&gt;
| title     = A Hypochrondiac's Nightmare&lt;br /&gt;
| image     = a hypochrondiacs nightmare.png&lt;br /&gt;
| titletext = BUT WHAT IF I REASSURE MYSELF WITH A JOKE AND THEN DON'T WORRY ABOUT THE RASH AND IT TURNS OUT TO BE DEATH MITES AND I COULD HAVE CAUGHT IT&lt;br /&gt;
| imagesize =&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
== Explanation ==&lt;br /&gt;
&lt;br /&gt;
A hypochondriac is a person who is obsessively worried about their health. This is a hypochondriac's nightmare because he always was expecting to die due to a disease, but instead he dies by slipping on a banana and falling into an airplane engine. [[Cueball]] is hating himself for wasting so many hours on WebMD worrying about a rash on his arm because he now knows how he dies.&lt;br /&gt;
&lt;br /&gt;
The title text is saying that what if he forgets about the rash, and reassures himself with a joke, but it turns out that he caught death mites. This is probably to prove that in this comic [[Cueball]] is such a hypochondriac that he isn't as worried that he is going to die than the probability that the rash might have been death mites.&lt;br /&gt;
&lt;br /&gt;
== Trivia ==&lt;br /&gt;
&lt;br /&gt;
Hypochondriac is wrongly spelled as Hypochrondiac in this comic.&lt;br /&gt;
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{{Comic discussion}}&lt;br /&gt;
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[[Category:Comics featuring Cueball]]&lt;/div&gt;</summary>
		<author><name>YM Industries</name></author>	</entry>

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