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From: crummer%AEROSPACE@sri-unix.UUCP
Newsgroups: net.physics
Subject: Dean Drive Possible?
Message-ID: <12563@sri-arpa.UUCP>
Date: Fri, 20-Apr-84 14:15:09 EDT
Article-I.D.: sri-arpa.12563
Posted: Fri Apr 20 14:15:09 1984
Date-Received: Fri, 11-May-84 08:24:01 EDT
Lines: 13

From:            Charlie Crummer <crummer@AEROSPACE>

The Dean Drive first appeared in Analog in the late '50's.  Dean actually
applied for a patent.  The drive does depend on reaction mass, at least as
described in the patent disclosure.  This hare-brained contraption got all
the way to NASA where an experimental apparatus was set up and conservation
of momentum was verified to a considerable degree of accuracy.  The apparatus
proposed by Dean does not, in fact, levitate.  Speculation as to additional
terms in Newton's 2nd law are probobly irrelevant.  The most accurate
investigation of this type of phenomenon must be carried out with the theory
of relativity.

  --Charlie