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    Re: Prop-walk.
    From: Fred Hebard
    Date: 2003 Apr 22, 22:40 -0400

    To extend the analogy with the fan in the room.  After you've lowered
    the ceiling (and moved the walls in also), either the fan stops or the
    room starts to spin.  In this instance, the room starts to spin.  Like
    the bowl with the Mixmaster.  We're holding the Mixmaster, or gravity,
    the boat, steady.  But, as George said, the spinning water hits one
    side of the boat, but not the other, since it's rotating around the
    boat.  So the boat moves sideways.  No need to appeal to the higher
    authority of engineering texts.
    
    
    

       
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