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Author Topic:   Cosmology Principle vs the actual center of the Universe
hotjer
Member (Idle past 4545 days)
Posts: 113
From: Denmark
Joined: 04-02-2010


(1)
Message 4 of 38 (562251)
05-27-2010 8:52 AM
Reply to: Message 1 by ramoss
05-26-2010 8:44 AM


Well, the simplest way you probably can falsify that concept is to think about the that fact that both the earth and our galaxy are moving in specific patterns and therefore they cannot be the center of a static universe nor an expanding universe.
The strongest evidence of us, the earth , nor any point in the universe, not being the center of universe must be the observartion of cosmic microwave background radiation (CMB). To put it simple; the only explanation to how an uniform cooling of the univserse could occur is that the universe experiences a metric expansion.
Sources to get an accurate understanding of what I am saying.
http://arxiv.org/PS_cache/astro-ph/pdf/0012/0012222v1.pdf
Just a moment...

This message is a reply to:
 Message 1 by ramoss, posted 05-26-2010 8:44 AM ramoss has replied

Replies to this message:
 Message 5 by cavediver, posted 05-27-2010 11:53 AM hotjer has replied
 Message 7 by ramoss, posted 06-08-2010 5:49 PM hotjer has replied

  
hotjer
Member (Idle past 4545 days)
Posts: 113
From: Denmark
Joined: 04-02-2010


Message 6 of 38 (562286)
05-27-2010 5:04 PM
Reply to: Message 5 by cavediver
05-27-2010 11:53 AM


Do you mind giving me some sources/links?

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 Message 5 by cavediver, posted 05-27-2010 11:53 AM cavediver has not replied

  
hotjer
Member (Idle past 4545 days)
Posts: 113
From: Denmark
Joined: 04-02-2010


Message 8 of 38 (564177)
06-08-2010 7:49 PM
Reply to: Message 7 by ramoss
06-08-2010 5:49 PM


I tried to search around the Internet and I found out scientists are getting some useful results from LHC and generally, they are still producing consistent prediction about the universe. I also saw a paper from 2010, 9 march, that says the universe is 20 billion years old using hot and warm spots on the CMB to calculate this stuff. They still need to solve a lot of mysteries though. In any case,, I highly doubt we are the center of the universe.
Btw thanks for the link. It was interesting reading material.

This message is a reply to:
 Message 7 by ramoss, posted 06-08-2010 5:49 PM ramoss has not replied

Replies to this message:
 Message 9 by greentwiga, posted 06-09-2010 2:02 AM hotjer has replied

  
hotjer
Member (Idle past 4545 days)
Posts: 113
From: Denmark
Joined: 04-02-2010


Message 10 of 38 (564236)
06-09-2010 6:29 AM
Reply to: Message 9 by greentwiga
06-09-2010 2:02 AM


quote:
This is not so. We see to 5% in every direction.
Which indicates the universe is homogenous and isotropic and therefore the universe does not have a center.
The Little Book of Time - Klaus Mainzer - Google Books
And an experiment:
http://www.physorg.com/news148885058.html
Of course, nothing is conclusive (yet, if it ever will be that), but what you said support a no-center-universe.

This message is a reply to:
 Message 9 by greentwiga, posted 06-09-2010 2:02 AM greentwiga has replied

Replies to this message:
 Message 12 by greentwiga, posted 06-10-2010 1:44 AM hotjer has replied

  
hotjer
Member (Idle past 4545 days)
Posts: 113
From: Denmark
Joined: 04-02-2010


Message 15 of 38 (564367)
06-10-2010 6:44 AM
Reply to: Message 12 by greentwiga
06-10-2010 1:44 AM


Is there an end on a Mbius strip? Is there a centre on the surface of a sphere? They are finite so there must be centre, right? Of course the answer is no, however, I understand why you think like this, since the way modern physics and astronomers think of the universe are in abstract mathematic thoughts which we cannot visualize because of our limitation to only see three spatial dimensions and not a fourth. Because I had a project about the fourth-spatial dimension I started to have a pretty good idea of how the fourth dimension is like and therefore I can understand why they, physics and astronomers, think of the universe as with more dimension than just the three we can see as human beings. The best I can do is telling you a lot of analogies, but of course, the problem with analogies are they catch some of the point but also miss some of the point, they are never are never perfect. The most popular, and probably also the best, is to use two dimensional analogies. If you have any kind of interest in such thing I either recommend you to search through the Internet and/or read the book Flatland: A Romance of Many Dimensions by Edwin Abbott Abbott from 1884. Here we can read how flatlanders trying to understand phenomena that does not make sense in a two dimensional world, as they live in, and the idea of a new dimension, that they cannot see but must be there, to explain the phenomena.
In any case; we still do not know the exact shape of the universe, but it is very likely that it has no centre at least.

This message is a reply to:
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