Difference between revisions of "Talk:1125: Objects In Mirror"

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(Title text: aberration?)
m (DO NOT reformat the talk page to your whims. DO NOT comment outside of chronological order.)
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== Size ==
 
 
 
Anyone else think that the smallness of this comic is unusual? I can barely read the mirror. [[User:TheHYPO|TheHYPO]] ([[User talk:TheHYPO|talk]]) 14:41, 24 October 2012 (UTC)
 
Anyone else think that the smallness of this comic is unusual? I can barely read the mirror. [[User:TheHYPO|TheHYPO]] ([[User talk:TheHYPO|talk]]) 14:41, 24 October 2012 (UTC)
 
:Agreed.  The key part of the "punchline" is the word "bluer", and it's '''really''' hard to read. [[Special:Contributions/67.51.59.66|67.51.59.66]] 18:43, 24 October 2012 (UTC)
 
:Agreed.  The key part of the "punchline" is the word "bluer", and it's '''really''' hard to read. [[Special:Contributions/67.51.59.66|67.51.59.66]] 18:43, 24 October 2012 (UTC)
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:It's probably from the viewpoint of the driver.--[[User:Castriff|Jimmy C]] ([[User talk:Castriff|talk]]) 16:49, 24 October 2012 (UTC)
 
:It's probably from the viewpoint of the driver.--[[User:Castriff|Jimmy C]] ([[User talk:Castriff|talk]]) 16:49, 24 October 2012 (UTC)
  
== Title text ==
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I think title text refers to the expansion of the universe and the speed of light.  The observable universe is viewed from light that originated in the past.  The further away the object, the further back in time we observe it.  In an expanding universe, the universe we observe today is actually how it looked in the past (smaller) and we are unable to observe it's present size (larger) due to the great distances and the time it takes for the light to arrive.  Thus, the universe is larger than it appears, no matter if you view it traveling towards or away from any object.  --[[User:Bpiltz|Bpiltz]] ([[User talk:Bpiltz|talk]]) 15:47, 24 October 2012 (UTC)
  
I think title text refers to the expansion of the universe and the speed of light.  The observable universe is viewed from light that originated in the past.  The further away the object, the further back in time we observe it.  In an expanding universe, the universe we observe today is actually how it looked in the past (smaller) and we are unable to observe it's present size (larger) due to the great distances and the time it takes for the light to arrive.  Thus, the universe is larger than it appears, no matter if you view it traveling towards or away from any object. --[[User:Bpiltz|Bpiltz]] ([[User talk:Bpiltz|talk]]) 15:47, 24 October 2012 (UTC)
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If the object in the mirror were another car overtaking this one, it would actually be redder than it appears. --[[User:Prooffreader|Prooffreader]] ([[User talk:Prooffreader|talk]]) 17:51, 24 October 2012 (UTC)
  
 
My first thought was that the title text refers to the fact that objects appear to be in different directions, as well as colors, from a moving viewpoint. So objects in front of a moving car will appear to be closer together than if the car were stopped.  
 
My first thought was that the title text refers to the fact that objects appear to be in different directions, as well as colors, from a moving viewpoint. So objects in front of a moving car will appear to be closer together than if the car were stopped.  
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But objects seen in the rear-view mirror will appear more spread out, so maybe not.  
 
But objects seen in the rear-view mirror will appear more spread out, so maybe not.  
 
<br/>[[Special:Contributions/75.36.234.236|75.36.234.236]] 18:58, 24 October 2012 (UTC)
 
<br/>[[Special:Contributions/75.36.234.236|75.36.234.236]] 18:58, 24 October 2012 (UTC)
 
== Another car ==
 
 
If the object in the mirror were another car overtaking this one, it would actually be redder than it appears. --[[User:Prooffreader|Prooffreader]] ([[User talk:Prooffreader|talk]]) 17:51, 24 October 2012 (UTC)
 

Revision as of 19:12, 24 October 2012

Anyone else think that the smallness of this comic is unusual? I can barely read the mirror. TheHYPO (talk) 14:41, 24 October 2012 (UTC)

Agreed. The key part of the "punchline" is the word "bluer", and it's really hard to read. 67.51.59.66 18:43, 24 October 2012 (UTC)
Text on the mirror is larger than it appears.
It's probably from the viewpoint of the driver.--Jimmy C (talk) 16:49, 24 October 2012 (UTC)

I think title text refers to the expansion of the universe and the speed of light. The observable universe is viewed from light that originated in the past. The further away the object, the further back in time we observe it. In an expanding universe, the universe we observe today is actually how it looked in the past (smaller) and we are unable to observe it's present size (larger) due to the great distances and the time it takes for the light to arrive. Thus, the universe is larger than it appears, no matter if you view it traveling towards or away from any object. --Bpiltz (talk) 15:47, 24 October 2012 (UTC)

If the object in the mirror were another car overtaking this one, it would actually be redder than it appears. --Prooffreader (talk) 17:51, 24 October 2012 (UTC)

My first thought was that the title text refers to the fact that objects appear to be in different directions, as well as colors, from a moving viewpoint. So objects in front of a moving car will appear to be closer together than if the car were stopped. See http://www.fourmilab.ch/cship/aberration.html But objects seen in the rear-view mirror will appear more spread out, so maybe not.
75.36.234.236 18:58, 24 October 2012 (UTC)