From: Anders Sandberg (asa@nada.kth.se)
Date: Thu Aug 15 2002 - 04:50:44 MDT
On Thu, Aug 15, 2002 at 05:19:12PM +0930, Emlyn O'regan wrote:
> When people talk about space expanding, do they merely mean that all the
> atoms in the universe are moving away from the center? Or is it something
> funkier than that? Anyone got a good url where the physics impaired can get
> an explanation?
It is funky. The universe doesn't have any center, so when space expands
it simply means that the distances between galaxies increase - to us it
looks like they are all moving away from us, to someone in Andromeda it
looks like they all are moving away from them. There is literally more
space appearing everywhere (we don't see it on Earth since 1) the
expansion is so small, and 2) objects keep together at the same size
even as the underlying space expands).
>
http://www.weburbia.com/physics/expanding_universe.html
has a good explanation.
-- ----------------------------------------------------------------------- Anders Sandberg Towards Ascension! asa@nada.kth.se http://www.nada.kth.se/~asa/ GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y
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