Thread: Cosmic Horizon
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Re: Cosmic Horizon
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Re: Cosmic Horizon - 12-01-2007, 02:39 PM

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Originally Posted by Graybeard View Post
Space is expanding faster than the speed of light. The limit that applies to light and everything that started out slower than the speed of light is not placed on the expansion of space. When space expands between any two objects no 'G' force or acceleration is felt ... such as would be if either of, or both of the two objects were accelerating away or towards each other. Our acceleration is limited to less than the speed of light.

The expansion of space is not an acceleration, even tho objects are receding from each other, and therefore General Relativity places no limit on it at all.

cool bananas ... greg
One cannot compare an acceleration to a velocity; they are inherently different quantities. I know what you're saying though, Greg. Distances increase because the universe is expanding, and it looks like distant objects are moving with respect to us at speeds far exceeding the speed of light. However, it is not a physical velocity, and so relativity is not broken.


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