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Path: utzoo!utcs!lsuc!pesnta!amdcad!amdahl!ems
From: ems@amdahl.UUCP (ems)
Newsgroups: net.space
Subject: Re: Light Sails
Message-ID: <1227@amdahl.UUCP>
Date: Mon, 4-Mar-85 20:16:34 EST
Article-I.D.: amdahl.1227
Posted: Mon Mar  4 20:16:34 1985
Date-Received: Wed, 6-Mar-85 00:42:34 EST
References: <722@mordor.UUCP> <133@uwvax.UUCP> <349@desint.UUCP>
Organization: Circle C Shellfish Ranch, Shores-of-the-Pacific, Ca
Lines: 18

> 
> (b) Momentum and energy are two different things.  Momentum must still be
> conserved in this collision;  in this case the system (including the
> absorbed photon) must retain 1 frobozz away from the sun.  This means that
> the photon will be slowed dramatically.

Ah, I think you may have meant something else here.  Like maybe the
wavelength would change or some such.  I'm not real up on my physics, but
I thought that C was a constant... (Until the ANSI committies get done
with it ? :-)

E. Michael Smith  ...!{hplabs,ihnp4,amd,nsc}!amdahl!ems

Computo ergo sum

The opinions expressed by me are not representative of those of any
other person - natural, unnatural, or fictional - and only marginally
reflect my opinions as strained by the language.