Talk:1365: Inflation - Revision history

108.162.221.45 at 01:08, 26 June 2014

2014-06-26T01:08:21Z

Davidy22 at 06:46, 13 May 2014

2014-05-13T06:46:41Z

108.162.219.33 at 21:28, 12 May 2014

2014-05-12T21:28:18Z

Run, you clever boy: Axis of evil relevant to comic explanation?

2014-05-10T01:07:13Z

Axis of evil relevant to comic explanation?

Condor70 at 05:54, 9 May 2014

2014-05-09T05:54:48Z

108.162.237.218 at 05:16, 9 May 2014

2014-05-09T05:16:57Z

108.162.221.61 at 01:18, 9 May 2014

2014-05-09T01:18:39Z

Davidy22 at 04:18, 8 May 2014

2014-05-08T04:18:39Z

173.245.53.85 at 23:13, 7 May 2014

2014-05-07T23:13:24Z

Someone Else 37: Added a reply and a holographic note

2014-05-07T22:12:03Z

Added a reply and a holographic note

← Older revision		Revision as of 01:08, 26 June 2014
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	Is the so-called Axis of Evil relevant here? The gist is that the CMB is spuriously (?) aligned with the ecliptic plane. See Wikipedia for overview (http://en.wikipedia.org/wiki/Copernican_principle#Ecliptic_alignment_of_cosmic_microwave_background_anisotropy), Sabine Hossenfelder's Backreaction blog for details (http://backreaction.blogspot.com/2006/12/anomalous-alignments-in-cosmic.html), and consider adding this png to explanation, please (http://www.phys.cwru.edu/projects/mpvectors/images/paper3/map_teg_3.png). Also, the AoE has a basketball like appearance. [[User:Run, you clever boy\|Run, you clever boy]] ([[User talk:Run, you clever boy\|talk]]) 01:07, 10 May 2014 (UTC)		Is the so-called Axis of Evil relevant here? The gist is that the CMB is spuriously (?) aligned with the ecliptic plane. See Wikipedia for overview (http://en.wikipedia.org/wiki/Copernican_principle#Ecliptic_alignment_of_cosmic_microwave_background_anisotropy), Sabine Hossenfelder's Backreaction blog for details (http://backreaction.blogspot.com/2006/12/anomalous-alignments-in-cosmic.html), and consider adding this png to explanation, please (http://www.phys.cwru.edu/projects/mpvectors/images/paper3/map_teg_3.png). Also, the AoE has a basketball like appearance. [[User:Run, you clever boy\|Run, you clever boy]] ([[User talk:Run, you clever boy\|talk]]) 01:07, 10 May 2014 (UTC)
		+
		+	The joke is that in a lot of descriptions of the Big Bang for laymen, the initial inflationary period is all too often described as growing from subatomic size to about "the size of a basketball". In Randall's comic, they discover that apparently it was a basketball. For countless examples of the overused "size of a basketball" description, do a Google search for the following (include the quotes exactly as written): "big bang" inflation "size of a basketball"
		+	[[Special:Contributions/108.162.221.45\|108.162.221.45]] 01:08, 26 June 2014 (UTC)

@@ Line 24: / Line 24: @@
 What's a basketball? (explain like i'm five &lt;duck>) [[User:Ralfoide|Ralfoide]] ([[User talk:Ralfoide|talk]]) 14:19, 7 May 2014 (UTC)
-:Quack, quack, quack, quack, quack!
+:Quack, quack, quack, quack, quack! {{unsigned ip|108.162.219.33}}
 Megan is not looking at the "actual image captured by the BICEP2 instrument", because BICEP2 has only a 20 degree field of view (targed at the "Southern Hole") http://www.caltech.edu/content/building-bicep2-conversation-jamie-bock {{unsigned ip|173.245.54.73}}

← Older revision		Revision as of 21:28, 12 May 2014
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	What's a basketball? (explain like i'm five <duck>) [[User:Ralfoide\|Ralfoide]] ([[User talk:Ralfoide\|talk]]) 14:19, 7 May 2014 (UTC)		What's a basketball? (explain like i'm five <duck>) [[User:Ralfoide\|Ralfoide]] ([[User talk:Ralfoide\|talk]]) 14:19, 7 May 2014 (UTC)
		+	:Quack, quack, quack, quack, quack!

	Megan is not looking at the "actual image captured by the BICEP2 instrument", because BICEP2 has only a 20 degree field of view (targed at the "Southern Hole") http://www.caltech.edu/content/building-bicep2-conversation-jamie-bock {{unsigned ip\|173.245.54.73}}		Megan is not looking at the "actual image captured by the BICEP2 instrument", because BICEP2 has only a 20 degree field of view (targed at the "Southern Hole") http://www.caltech.edu/content/building-bicep2-conversation-jamie-bock {{unsigned ip\|173.245.54.73}}

← Older revision		Revision as of 01:07, 10 May 2014
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	This could also be a joke on the {{w\|Holographic Principle}}, where everything inside a volume (such as the universe or the interior of a basketball) can be encoded into a surface surrounding that volume. Here, Randall seems to propose that WMAP has seen through the universe to its surface, and revealed its true nature. --[[User:Someone Else 37\|Someone Else 37]] ([[User talk:Someone Else 37\|talk]]) 22:12, 7 May 2014 (UTC)		This could also be a joke on the {{w\|Holographic Principle}}, where everything inside a volume (such as the universe or the interior of a basketball) can be encoded into a surface surrounding that volume. Here, Randall seems to propose that WMAP has seen through the universe to its surface, and revealed its true nature. --[[User:Someone Else 37\|Someone Else 37]] ([[User talk:Someone Else 37\|talk]]) 22:12, 7 May 2014 (UTC)
		+
		+	Is the so-called Axis of Evil relevant here? The gist is that the CMB is spuriously (?) aligned with the ecliptic plane. See Wikipedia for overview (http://en.wikipedia.org/wiki/Copernican_principle#Ecliptic_alignment_of_cosmic_microwave_background_anisotropy), Sabine Hossenfelder's Backreaction blog for details (http://backreaction.blogspot.com/2006/12/anomalous-alignments-in-cosmic.html), and consider adding this png to explanation, please (http://www.phys.cwru.edu/projects/mpvectors/images/paper3/map_teg_3.png). Also, the AoE has a basketball like appearance. [[User:Run, you clever boy\|Run, you clever boy]] ([[User talk:Run, you clever boy\|talk]]) 01:07, 10 May 2014 (UTC)

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 :Because of the curving lines like a basketball on the image. [[User:Fizzle|Fizzle]] ([[User talk:Fizzle|talk]]) 06:17, 7 May 2014 (UTC)
 ::Added the reasoning for choosing a basketball to represent the universe [[User:Condor70|Condor70]] ([[User talk:Condor70|talk]]) 08:46, 7 May 2014 (UTC)
-::I have never heard of the Basketball version - in DK I have mainly heard of it like a balloon. The link is to a book - could someone find a link to a short article where this analogy is used? Also I agree that if you do not know a basketballs lines you would never think of that from the image - as it much more looks like an American football due to the shape. Of course the Space Jam/Michael Jordan title text makes it clear that it is a basketball. [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:11, 7 May 2014 (UTC)
+:::I have never heard of the Basketball version - in DK I have mainly heard of it like a balloon. The link is to a book - could someone find a link to a short article where this analogy is used? Also I agree that if you do not know a basketballs lines you would never think of that from the image - as it much more looks like an American football due to the shape. Of course the Space Jam/Michael Jordan title text makes it clear that it is a basketball. [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:11, 7 May 2014 (UTC)
-:::The only other reference I could find is [http://csep10.phys.utk.edu/astr162/lect/cosmology/inflation.html]. I remember the analogy from a Discovery Channel program.[[User:Condor70|Condor70]] ([[User talk:Condor70|talk]]) 15:31, 7 May 2014 (UTC)
+::::The only other reference I could find is [http://csep10.phys.utk.edu/astr162/lect/cosmology/inflation.html]. I remember the analogy from a Discovery Channel program.[[User:Condor70|Condor70]] ([[User talk:Condor70|talk]]) 15:31, 7 May 2014 (UTC)
 :This is no basketball! The lines on a basketball are different. On a basketball every line intersects exactly 4 times with other lines. {{unsigned ip|141.101.97.203}}
 ::Looks like a basketball (example [http://tf3dm.com/imgd/l20568-official-nba-spalding-basketball-86751.jpeg]). Remember that the Mollweide projection distorts the lines.[[User:Condor70|Condor70]] ([[User talk:Condor70|talk]]) 15:31, 7 May 2014 (UTC)
 :::Person two comments above is correct.  Take either the east or west hemisphere (according to the orientation of the globe as presented in this comic) and then rotate it 90 degrees (on the globe, not on the silly eliptical projection) and ''then'' you have the basketball I grew up with.  Has it changed in the last 20 years?  Condor70's linked image doesn't show enough of the ball's surface to be conclusive on this point.  Images on Wikipedia seem to indicate the rib/seam pattern may vary by ball manufacturer; the “official” NBA/Spalding ball image there doesn't show enough of the ball's surface either.  — Vid the Kid [[Special:Contributions/108.162.216.77|108.162.216.77]] 17:07, 7 May 2014 (UTC)
 Should the image not be updated to the current one on XKCD? Then this image could be saved on XKCD and linked to from the explanation on the error. [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:09, 7 May 2014 (UTC)

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 "''The concept of an expanding universe is often explained by comparing it with a basketball''"
 : "Often" ???  I get that a basketball is used in the comic, to allow for the Space Jam joke.  But in all the explanations of an expanding universe I've ever seen, nobody has ever used a basketball.  It's always been a balloon.  Which makes a great deal more sense since a balloon, unlike a basketball, is something folks typically see actually expand.  Claiming a basketball is "often" used seems forced here, an attempt to wedge in a unneeded justification for the Comcast's punchline. [[Special:Contributions/199.27.128.84|199.27.128.84]] 17:01, 7 May 2014 (UTC)
 If I understand the basketball analogy correctly you can neiter be inside nor outside the ball, so why would it matter if the logo is reversed or not? You can't actually see the entire ball from anywhere in the universe. [[Special:Contributions/173.245.53.62|173.245.53.62]] 17:09, 7 May 2014 (UTC)

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 http://www.imdb.com/title/tt0117705/?ref_=nm_flmg_act_1
 [[Special:Contributions/173.245.63.186|173.245.63.186]] 04:54, 7 May 2014 (UTC)
 Maybe a reference to the 'SH' (for Stephen Hawking) found in WMAP data? http://www.newscientist.com/article/dn18489-found-hawkings-initials-written-into-the-universe.html [[Special:Contributions/173.245.53.85|173.245.53.85]] 23:13, 7 May 2014 (UTC)

← Older revision		Revision as of 22:12, 7 May 2014
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	If I understand the basketball analogy correctly you can neiter be inside nor outside the ball, so why would it matter if the logo is reversed or not? You can't actually see the entire ball from anywhere in the universe. [[Special:Contributions/173.245.53.62\|173.245.53.62]] 17:09, 7 May 2014 (UTC)		If I understand the basketball analogy correctly you can neiter be inside nor outside the ball, so why would it matter if the logo is reversed or not? You can't actually see the entire ball from anywhere in the universe. [[Special:Contributions/173.245.53.62\|173.245.53.62]] 17:09, 7 May 2014 (UTC)
		+	:True, but then you'd see the logo edge-on, which would make it impossible to read and ruin the joke. --[[User:Someone Else 37\|Someone Else 37]] ([[User talk:Someone Else 37\|talk]]) 22:12, 7 May 2014 (UTC)
		+
		+	This could also be a joke on the {{w\|Holographic Principle}}, where everything inside a volume (such as the universe or the interior of a basketball) can be encoded into a surface surrounding that volume. Here, Randall seems to propose that WMAP has seen through the universe to its surface, and revealed its true nature. --[[User:Someone Else 37\|Someone Else 37]] ([[User talk:Someone Else 37\|talk]]) 22:12, 7 May 2014 (UTC)