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From: throopw@rtp47.UUCP (Wayne Throop)
Newsgroups: net.sf-lovers
Subject: Re: FTL, imaginary mass, etc.
Message-ID: <156@rtp47.UUCP>
Date: Thu, 22-Aug-85 12:47:42 EDT
Article-I.D.: rtp47.156
Posted: Thu Aug 22 12:47:42 1985
Date-Received: Sun, 25-Aug-85 06:16:02 EDT
References: <2702@topaz.ARPA> <1622@orca.UUCP> <813@ncoast.UUCP> <436@utastro.UUCP> <154@iitcs.UUCP> <840@ncoast.UUCP>
Organization: Data General, RTP, NC
Lines: 11

> Now, we all know that FTL implies traveling backwards in time...
>
> Therefore, tachyons just might be identical to antimatter.  What kind of mass
> does an antiparticle have?

Nope.  Tachyons are particles with a space-like world-line (and have
never been observed).  Antiparticles have a time-like world-line, but it
is (or may be) "going" pastwards relative to particles.  Antiparticles
have good old regular, ordinary, positive mass.
-- 
Wayne Throop at Data General, RTP, NC
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