Re: Science Olympiad anyone?

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1 total messages Started by Van E. Neie Tue, 08 Mar 1994 02:47

#1731

Author: Van E. Neie
Date: Tue, 08 Mar 1994 02:47

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I judged this contest at our Regional a couple of years ago and saw a really
clever braking system.  The front axle was a threaded rod containing a fairly
loose nut that was bottom weighted so it wouldn't turn.  The nut was originally
at one end of the rod and as the axle turned, the nut moved across the rod and
eventually jammed against the wheel.  Of course the pitch of the threads had
to be selected carefully to get the right number of turns before stopping.

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Van E. Neie                                      ven@physics.purdue.edu
Purdue University                                neie@purccvm.bitnet
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