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From: depolo@eniac.seas.upenn.edu (Jeff DePolo)
Newsgroups: sci.physics,sci.electronics
Subject: Re: PUZZLE
Message-ID: <8954@netnews.upenn.edu>
Date: 20 Mar 89 09:23:12 GMT
References: <24615@pbhya.PacBell.COM> <9916@bloom-beacon.MIT.EDU> <6237@bsu-cs.UUCP>
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In article <6237@bsu-cs.UUCP> dhesi@bsu-cs.UUCP (Rahul Dhesi) writes:
>In article <9916@bloom-beacon.MIT.EDU> yphotons@athena.mit.edu writes:
>>Have any ideas??????
>[about making a DC electric motor out of magnets, paper clips,
>thumbtacks, wire, and wood]
>
>Check the early issues of Popular Science (circa 1958-1968).  One of
>them shows you how to make an electric motor out of six tacks, a cork
>from a bottle, wire, and magnets.
>-- 
>Rahul Dhesi         UUCP:  <backbones>!{iuvax,pur-ee}!bsu-cs!dhesi
>                    ARPA:  dhesi@bsu-cs.bsu.edu

This sounds like my final project in highschool physics.  All we got was
some varnished wire, a 6V dry cell, a cork, paper clips, and a metal
rod to use as an axel.  We had to get it to run for 30 seconds straight
in order to pass.  No instruction was given.  Pretty good idea for a
practical test of physics skill/knowledge.  Note that that wasn't the
whole final.  Nothing could be THAT easy  :-)

						--- Jeff


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