Re: OT: Agnoticism (WAS: Making money from Java)

On Thu, 29 Dec 2005 01:58:21 +1300, "Pete Dashwood"
<dashwood@xxxxxxxxxxxxxx> wrote:

>> Please describe what you mean when you say "space curves back on
>> itself".
>>
>It isn't so much that "space curves back on it itself"; rather that space
>itself is (roughly) spherical (and expanding...). Anything emanating from a
>point on the "edge" of it will eventually describe a great circle and return
>to the point where it originated (given all the things required to allow
>this to happen..)

It is expanding - and there are galaxies which are far enough away
from us that their current light will never reach us (we see them from
when the universe was smaller). People have played with the idea
that light from an object will eventually make it back to that object
after going around the universe, but have found no evidence to support
this idea.
.

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