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From: @S1-A.ARPA:host.MIT-MC.ARPA
Newsgroups: net.space
Subject: Re: Speed of light
Message-ID: <1740@mordor.UUCP>
Date: Fri, 10-May-85 11:11:46 EDT
Article-I.D.: mordor.1740
Posted: Fri May 10 11:11:46 1985
Date-Received: Mon, 10-Jun-85 04:48:46 EDT
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From: Slocum@HI-MULTICS.ARPA

Organization:  Honeywell Computer Sciences Center, Bloomington MN

The speed of light is one of those things that always gets people mixed
up.  The speed of light is constant in all frames of reference.  In the
example you described, the two light beams would both be going at C, but
their wavelengths would appear different to the observer in Ship1.  The
beam from ship2 would be blue-shifted.  You would have to do some
reading to get a better explanation.  Asimov probably has something that
explains this well.  I woudl suggest Asimov's three part physics book.
I don't remember the title, but it is excellent.  It also goes through
most of modern physics in a very reasonable understandable way.

Brett Slocum
   (ARPA: Slocum@HI-MULTICS)
   (UUCP: ...ihnp4!umn-cs!hi-csc!slocum)