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Rotating Universe, or a Stationary Infinite?

The-Voice-of-Truth
Posts: 9,465
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1/6/2015 1:35:47 PM
Posted: 2 years ago
I have no opinion on this topic; I just want to see what other people think.
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Smithereens
Posts: 6,974
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1/7/2015 5:34:39 AM
Posted: 2 years ago
Why not Neither?
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Accipiter
Posts: 1,598
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1/8/2015 12:41:21 AM
Posted: 2 years ago
I don't think a universe can rotate because that would mean it has an axis. The universe can't have an axis because it has no center or reference point from which things can be measured.
Among competing hypotheses, the one with the fewest assumptions should be selected. - William of Ockham
Clovis
Posts: 191
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1/8/2015 2:00:39 PM
Posted: 2 years ago
At 1/8/2015 12:41:21 AM, Accipiter wrote:
I don't think a universe can rotate because that would mean it has an axis. The universe can't have an axis because it has no center or reference point from which things can be measured.

Agreed, if we are assuming the universe to be infinite there can be no center point or axis on which to rotate around.
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Sidewalker
Posts: 3,749
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1/8/2015 7:29:39 PM
Posted: 2 years ago
At 1/6/2015 1:35:47 PM, The-Voice-of-Truth wrote:
I have no opinion on this topic; I just want to see what other people think.

The only way something can rotate is in spatial reference to something else....it is meaningless to say the universe is rotating.
"It is one of the commonest of mistakes to consider that the limit of our power of perception is also the limit of all there is to perceive." " C. W. Leadbeater
drewr
Posts: 4
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1/8/2015 10:35:56 PM
Posted: 2 years ago
At 1/8/2015 7:29:39 PM, Sidewalker wrote:
At 1/6/2015 1:35:47 PM, The-Voice-of-Truth wrote:
I have no opinion on this topic; I just want to see what other people think.

The only way something can rotate is in spatial reference to something else....it is meaningless to say the universe is rotating.

Anything can rotate as long as it contains more than one point and has mass - like a rotating planet which will still have an equatorial bulge even without a universe. There are some theories that say that the bulge is dependent on a universe, but nothing certain and really no known way to check.
chui
Posts: 545
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1/9/2015 6:26:19 AM
Posted: 2 years ago
A rotating universe would not be isotropic so this would show up in the cosmic microwave background radiation. With the latest images of the CMBR this can be tested and some evidence has pointed to a rotating universe. Apparantly this helps to explain the big cold spot in WMaP.

http://www.earlyuniverse.org...
Let's hope "the truth is out there" cos there is bugger all round here.
Accipiter
Posts: 1,598
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1/9/2015 10:01:01 AM
Posted: 2 years ago
At 1/8/2015 7:29:39 PM, Sidewalker wrote:
At 1/6/2015 1:35:47 PM, The-Voice-of-Truth wrote:
I have no opinion on this topic; I just want to see what other people think.

The only way something can rotate is in spatial reference to something else....it is meaningless to say the universe is rotating.

Only if the universe is infinite.
Among competing hypotheses, the one with the fewest assumptions should be selected. - William of Ockham
Accipiter
Posts: 1,598
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1/9/2015 10:13:10 AM
Posted: 2 years ago
If the universe is rotating that implies that there is a point (at it's axis) from which things can be measured.

If that were the case the speed of light could only be measured from that point.

What we have found is that the speed of light is always the same no matter where you measure it from.
Among competing hypotheses, the one with the fewest assumptions should be selected. - William of Ockham
Sidewalker
Posts: 3,749
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1/12/2015 8:12:50 PM
Posted: 2 years ago
At 1/8/2015 10:35:56 PM, drewr wrote:
At 1/8/2015 7:29:39 PM, Sidewalker wrote:
At 1/6/2015 1:35:47 PM, The-Voice-of-Truth wrote:
I have no opinion on this topic; I just want to see what other people think.

The only way something can rotate is in spatial reference to something else....it is meaningless to say the universe is rotating.

Anything can rotate as long as it contains more than one point and has mass - like a rotating planet which will still have an equatorial bulge even without a universe. There are some theories that say that the bulge is dependent on a universe, but nothing certain and really no known way to check.

There needs to be a external frame of reference, is this a God thing? What is the nature of the coordinate system in which the universe can be rotating? Are you contending that there is an absolute frame of reference in relation to which the universe is rotating?
"It is one of the commonest of mistakes to consider that the limit of our power of perception is also the limit of all there is to perceive." " C. W. Leadbeater