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From: @S1-A.ARPA,@MIT-MC.ARPA:mcgeer%ucbkim@Berkeley
Newsgroups: net.space
Subject: Re: Re: IMAX and the Shuttle flights
Message-ID: <2524@mordor.UUCP>
Date: Fri, 5-Jul-85 23:56:59 EDT
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Posted: Fri Jul  5 23:56:59 1985
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From: Rick McGeer (on an aaa-60-s) 

	All you really need to solve the problem is two motor-driven
counter-rotating reels, one mounted adjacent to each of the film reels.
Let's call these the counter-reels.  They have some (constant) mass, so you
vary their angular momentum by varying their angular velocities
appropriately.  This can be done either by computation base on the amount of
time the camera has been operating, or can be controlled by simply measuring
the net angular momentum of the system and adjusting velocities
appropriately.