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From: al@ames.UUCP (Al Globus)
Newsgroups: net.space
Subject: Re: Light Sails
Message-ID: <821@ames.UUCP>
Date: Thu, 28-Feb-85 13:33:59 EST
Article-I.D.: ames.821
Posted: Thu Feb 28 13:33:59 1985
Date-Received: Mon, 4-Mar-85 08:15:26 EST
References: <595@mordor.UUCP> <129@uwvax.UUCP>
Organization: NASA-Ames Research Center, Mtn. View, CA
Lines: 9

> I is only an ameteur, so bear with me.
> 
> I am under the impression that a Light Sail would get its propulsion from
> the solar wind, a stream of protons and neutrons that are expelled from
> the sun constantly (and cause the Aurora Borealis, I think).  It seems to
> me that the "light pressure" from photons would be insufficient for any
> substantial thrust.

Yer wrong.  Thrust is from reflecting photons.