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From: nemo@rochester.UUCP
Newsgroups: net.space
Subject: Correction
Message-ID: <6903@rochester.UUCP>
Date: Thu, 28-Feb-85 14:52:57 EST
Article-I.D.: rocheste.6903
Posted: Thu Feb 28 14:52:57 1985
Date-Received: Mon, 4-Mar-85 04:14:42 EST
Sender: nemo@rochester.UUCP
Organization: U. of Rochester, CS Dept.
Lines: 8

From: Richard Newman-Wolfe  


Whoops.  The little dohicky with the paddles actually rotates the *other*
way in a *partial* vacuum due to a totally different effect.  Namely the
dark side absorbs more photons and heats up, transfers the heat to the gas
near the surface, which then expands, pushing the paddle away.  
Ne (face radiating a good deal of heat) mo