Re: SCI: slow light

From: Ron Kean (ronkean@juno.com)
Date: Fri Feb 19 1999 - 22:10:08 MST


On Sat, 20 Feb 1999 13:38:29 +0000 Damien Broderick
<damien@ariel.ucs.unimelb.edu.au> writes:
>Hmm. I wonder if really spectacularly hot crushed stuff might also
>superpose and tangle into a Bose-Einstein condensate, if which case
>the
>radiation near the Big Bang might also have been very slow, and,
>and...
>what? Nothing much, probably, since the expansion of spacetime was
>happening faster than light anyway. Still...
>
>Damien Broderick
>

The Sun has a lot of 'really spectacularly hot crushed stuff' in its core
where the nuclear fusion occurs. It takes many years for photons
produced by the reactions in the core to reach the outer layers, whereas
to travel the same distance thru empty space, a photon would take only 2
seconds.

Ron Kean

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