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From: weemba@brahms.BERKELEY.EDU (Matthew P. Wiener)
Newsgroups: net.physics
Subject: Re: The death of bogus physics
Message-ID: <12699@ucbvax.BERKELEY.EDU>
Date: Thu, 27-Mar-86 01:00:40 EST
Article-I.D.: ucbvax.12699
Posted: Thu Mar 27 01:00:40 1986
Date-Received: Fri, 28-Mar-86 05:49:19 EST
References: <12603@ucbvax.BERKELEY.EDU> <2049@brl-smoke.ARPA>
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: weemba@brahms.UUCP (Matthew P. Wiener)
Organization: University of California, Berkeley
Lines: 13

In article <2049@brl-smoke.ARPA> gwyn@brl.ARPA writes:
>In answer to the fellow who wanted to know what the difference is
>between space and space-time:  When one diagonalizes the symmetric
>part of the metric (the only part considered in normal general
>relativity) using real coordinate mappings, one of the four
>diagonal elements will have different sign than the other three.
>In the transformed (local Lorentz) frame, that coordinate will be
>associated with the direction of time while the other three are
>spatial.

I don't believe this.  The fellow asked for laymen's terms only.

ucbvax!brahms!weemba	Matthew P Wiener/UCB Math Dept/Berkeley CA 94720