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From: seltzer@lebeef.DEC
Newsgroups: net.space
Subject: Twin Paradox
Message-ID: <2609@decwrl.UUCP>
Date: Tue, 11-Jun-85 09:40:20 EDT
Article-I.D.: decwrl.2609
Posted: Tue Jun 11 09:40:20 1985
Date-Received: Thu, 13-Jun-85 01:40:59 EDT
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Organization: DEC Engineering Network
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"accelerated (non-inertial) reference frames don't count in special
relativity"

But the Earth, revolving around the Sun, is an accelerated reference
frame.  Isn't it?

So what does count?  Has a human being ever been anywhere that would
be considered an inertial reference frame?