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From: vallath@ucbcad.UUCP (Vallath Nandakumar)
Newsgroups: net.physics
Subject: Re: Re: speed
Message-ID: <28@ucbcad.UUCP>
Date: Tue, 11-Jun-85 02:09:53 EDT
Article-I.D.: ucbcad.28
Posted: Tue Jun 11 02:09:53 1985
Date-Received: Thu, 13-Jun-85 01:42:53 EDT
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Organization: UC Berkeley CAD Group, Berkeley, CA
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> > I've heard the twin paradox ...
> 
> The paradox is that *each* twin
> ages faster than the other (depending on your point of reference).
>... 

I have a followup question.  Excuse the imprecise language.

If the universe is closed (I mean space is of the type where
all straight lines meet), wouldn't the twins be able to meet
without either of them having undergone acceleration?
Who would then be older?
Or does all this need the addtional math of general
relativity?  Or isn't our universe closed anyway?  Or should I
just go home and sleep it off?

Vallath Nandakumar
ucbvax!ucbesvax!vallath,  esvax.vallath@berkeley.arpa