Re: If the universe is shaped like a cone why does the sky look round?

From: John Popelish (jpopelish_at_rica.net)
Date: 05/04/04 

Date: Tue, 04 May 2004 10:45:39 -0400

"hannu.poropudas@osakk.fi" wrote:
>
> John Popelish <jpopelish@rica.net> wrote in message news:<40835BF0.1624C5EF@rica.net>...
> > Lisa Horton wrote:
> > >
> > > Wouldn't the stars be concentrated more in certain areas of the sky?
> > >
> > > http://www.newscientist.com/news/news.jsp?id=ns99994879
> >
> > From inside this model of the universe, you supposedly cannot see (or
> > go) outside. Light approaching the boundary connects back inside
> > somewhere else and so do all paths of moving objects. Besides,
> > whether or not you can observe to any of the boundaries depends on
> > where you are, inside the universe, and how far out from that point
> > you can observe. So, to an observer inside such a universe, there are
> > only very subtle clues that this is the form. The elliptical
> > appearance of the blobs of microwave energy coming toward us from all
> > directions would be one of those clues (so they say).
>
> A.
> If I have understood right then horn-like surface represents 4D cone,
> where one space dimension is suppressed away and that dimension from
> left to right is time (t-dimension). So our expanding space is really
> expanding 3D sphere which is represented in this figure as 2D circle ?

That was my first impression when I looked at the picture in the
article, but there was nothing written that supported this first
impression and several details that contradict it. Did you read
through the article?
  

-- 
John Popelish

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