All Questions
5
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Does the homogeneity and isotropy of space imply that the expansion of the universe is uniform?
I have asked this question. Now I wonder what could happen if I take a step further. If space is assumed to be BOTH homogeneous AND isotropic, can I prove that the expansion of the universe is uniform?...
- 1,335
2
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1
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164
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Does the homogeneity of space imply that the expansion of the universe is uniform?
Obviously, homogeneity implies that the density is the same everywhere at any time. However, does this imply that the expansion is uniform? By uniformity, I mean that if I pick three galaxies to form ...
- 1,335
0
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1
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161
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Is universe symmetric about a point?
We have a good amount of discussion and theories on the formation of universe.
I want to ask is universe symmetric about a point?
I think that the answer should depend upon the uniformity of ...
- 3,377
0
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60
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Is a closed universe symmetric?
Say our universe is closed, at some point in the future it will reach a maximum and then begin to contract, will it return to say the point we are now in exactly the reverse manner? For example, as ...
- 59
5
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2
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111
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Is there a proof that space expanding produces observers at all points that see what we see?
I know that galaxies are moving away from us, and so can see that it's intuitive that if space was expanding, then the astronomical observations from Earth would be the same as at all other points in ...
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