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From: mff@wuphys.UUCP
Newsgroups: net.misc
Subject: Perpetual Motion
Message-ID: <247@wuphys.UUCP>
Date: Sat, 30-Mar-85 13:19:09 EST
Article-I.D.: wuphys.247
Posted: Sat Mar 30 13:19:09 1985
Date-Received: Fri, 5-Apr-85 11:31:44 EST
Distribution: net
Organization: Physics Dept., Washington Univ. in St. Louis
Lines: 35


Let's try to  shed some light on "perpetual motion".  It IS impossible for
the total sum of energy put in to a system to be greater than the total sum put
out.  But sometimes the counting can get tricky.  For instance, the total heat
generated by a "heat pump" heating unit can be greater than the amount of 
electrical energy used to run it.  This may look like you're getting more
energy out than you're putting in.  In fact, that's not the case.  There is
another source of energy around.  There is a large temperature gradient between
the outside and inside of the house.  This source of energy accounts for the
difference.

Now, I know absolutely nothing about this guy's invention.  But it is
theoretically possible to tap the energy stored in the earth's magnetic field.
Thus, you could get more energy out then you directly put in.  The difference
would be supplied by another source.  Again, let me state that I am in no way
implying that this is how this "invention" works or even if it does work, but I
don't think it should be dismissed out of hand.





						Mark F. Flynn
						Department of Physics
						Washington University
						St. Louis, MO  63130
						ihnp4!wuphys!mff

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