Re: The Age and Size of the Universe.

In message <m2pri3dqsph48lrdvvbrdm7eern6df4lkr@xxxxxxx>, George Dingwall <george.gdingwall@xxxxxxxxxx> writes
On Sun, 04 Nov 2007 13:48:43 +0100, Iordani <somewhere@xxxxxxxxx>
wrote:

George Dingwall wrote:

Now, assuming that the universe is expanding equally in all
directions, how do you get from the point of origin of the big bang
out to a distance of more than 75 billion lightyears in only 13.7
billion years?

There is no point of origin. (Or, all points are equally original)
Not that this answer will make it less confusing...

This stuff really confuses the hell out of me. :-)

I'd guess that Life, the Universe and Everything is equally confusing for
all who live here :)

If the origin was the bigbang when all energy and matter in the
universe occupying a volume of less than the smallest sub-atomic
particle, it either had a finite size or no size at all.

So my question is this. If they now know that it has a volume which is
150+ billion light years across, then it must have occupied a smaller
volume in the past. So how did it manage to expand from virtually
nothing to 150+ billion lightyears across in only 13.7 billion years.

Surely anything that existed shortly after the bigbang could not now
be more than 70 billion lightyears away from its original position.

The speed of light is a limit on the movement of (non-tachyonic) matter in space; however the expansion of space, which is not a movement of matter in space, is not limited by the speed of light. If you want to know more I think you have to study General Relativity.

Bye for now,

George Dingwall

Invergordon, Scotland

http://www.georgedingwall.co.uk

--
Stewart Robert Hinsley
.