Re: Is the universe spatially infinite?
From: Dale Trynor (dalet_at_nbnet.nb.ca)
Date: 08/08/04
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Date: Sun, 08 Aug 2004 19:21:24 GMT
Joseph Lazio wrote:
> Sam Wormley's already covered much of this, but let me through in my
> $0.01 as well.
>
>
>>>>>>"d" == dkomo <dkomoNoSpam@cris.com> writes:
>
>
> d> I was trying to get a verification of the following quotes:
>
> d> "But if the universe is spatially infinite, there was already an
> d> infinite spatial expanse at the moment of the big bang. At this
> d> initial moment, the energy density soared and an incomparably large
[snip]
> d> large-scale structure of spacetime."
>
> d> Greene, p. 250
>
> d> So what I got was a bunch of conflicting information in this
> d> thread.
>
> Welcome to Usenet. Everybody claims to be an expert. The best you
> can do is keep reading, and try to judge by the references that people
> give or their other posts.
[snip]
Dale Trynor wrote:
About time I threw my 2 cents in.
Its simpler than you think but for brevity I will avoid re posting the
gedankens and experimental approaches in support of this alternative theory.
Try asking yourself what might happen if the sort of time dilation one
gets around a black hole could be shown to contract matter, what I mean
is for an object just starting its free fall near one so that we don't
have to deal with speed etc. and its related Lorentz contractions.
Say if a time dilation of 1000 times was to contract your meter stick by
1000 times and this includes any and all references on length, then what
do you think measuring the orbit around the same black hole would become
for our close up observer. You would be right if you say that he will
measure an orbit 1000 times longer than he had expected it would be
before he arrived at that level.
To skip by a lot of details here now try asking what would happen from
the prospective of distant point particles in two neutron stars as they
merged into becoming a black hole and how our outside observer would
insist that all those particles would have seen the same time dilation
effects at the same time or rather simultaneously for the prospective of
our external observer.
Note that an infinite time dilation will result in an infinite space
expansion and that from our particles points of view their neutron stars
area has instantly gone from a few kms across to light years across.
Note how this resembles inflation theory. Note how our point particles
must now be limited to the speed of light in their ability to measure
the newly created size of the space now available to them. For example
in 1 second they will only have been able to measure the area around
themselves depending on how far light will have had time to travel in
that 1 second. However I may be ignoring something a bit like frame
dragging to distort this a bit.
A lot more to this theory but its really worth your time if you really
want an intuitively understandable mechanism for the creation of space
time and want to know if we are inside of another universe etc.
Post would otherwise be way to long to cover even the superficial
details that I have now.
Dale.
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