In article <477e656b$1@news.povray.org>, ele### [at] netscapenet 
says...
> Darren New nous apporta ses lumieres en ce 2008/01/03 23:51:
> 
> >>   Not everything gets longer. Only intergalactic space, far away from
> >> the galaxies, gets longer.
> > 
> > That's what has me curious.  How does space far from galaxies "decide"
 
> > to get larger while space between stars doesn't?
> It don't decide to get larger far from galaxies, galaxies prevent it to g
et larger.
> > 
> >>>>   AFAIK space doesn't expand inside galaxies.
> >>
> >>> OK. More weirdness. Have you heard any postulates on why that would
 
> >>> be the case? Space only expands where the gravity is sufficiently low
? 
> >>
> >> http://en.wikipedia.org/wiki/Hubble%27s_law
> >>
> >> "In using Hubble's law to determine distances, only the velocity due
> >> to the expansion of the universe can be used. Since gravitationally
> >> interacting galaxies move relative to each other independent of the
> >> expansion of the universe, these relative velocities, called peculiar
> >> velocities, need to be accounted for in the application of Hubble's
> >> law. The Finger of God effect is one result of this phenomenon
> >> discovered in 1938 by Benjamin Kenneally. In systems that are
> >> gravitationally bound, such as galaxies or our planetary system, the
> >> expansion of space is (more than) annihilated by the attractive force
> >> of gravity."
> > 
> > OK. That still doesn't make sense to me. As space expands between two
 
> > stars within a galaxy, the gravity between those stars gets *weaker*,
 
> > meaning they orbit more slowly and are less likely to hold together. 
> > Maybe that's why galaxies turn from globular clusters into spirals or
 
> > something, tho.
> The concensus is rather that galaxies start as spiral and degenerate into
 
> globular clusters.
> Usualy, spiral galaxies are relatively young, with lots of forming stars 
and 
> interstellar gases. Globular galaxies are older, have very little or no n
ew 
> stars forming and almost to totaly lack interstellar gases.
> > 
> 
Was the consensus. The problem is, they have found old galaxies and new 
that do *not* conform to those expectations. Its now thought that 
globular systems may be missing the central black hole, or some other 
factor, which would cause the tidal forces that make some galaxies spin, 
and thus form spirals. Its kind of up in the air though.

-- 
void main () {

    if version = "Vista" {
      call slow_by_half();
      call DRM_everything();
    }
    call functional_code();
  }
  else
    call crash_windows();
}

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