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From: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Newsgroups: sci.electronics,comp.periphs
Subject: Re: Re: MOTOR puzzle
Message-ID: <7846@polya.Stanford.EDU>
Date: 18 Mar 89 05:40:57 GMT
References: <18167@gatech.edu> <842@sering.cwi.nl> <9915@bloom-beacon.MIT.EDU>
Sender: Marc T. Kaufman <kaufman@polya.Stanford.EDU>
Reply-To: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Followup-To: sci.electronics
Organization: Stanford University
Lines: 18

In article <9915@bloom-beacon.MIT.EDU> yphotons@athena.mit.edu writes:
>What would be the best strategy in solving the following problem:

>Given 2 small rectangular magnets, approx 5 feet of wire, 2 thumb
>tacks, 2 paper clips, and a small block of wood (about 4"X2"x.5") How
>would one built a motor so that it can at least reach 2600 rpm. Only
>these items can used, the use of glue, tape, etc will disqualify you.
>NOTE only these items can used in thethe motor but you can use a drill
>to make holes or a saw to cut the wood in building the motor etc.

Get the Wolf or Bear Cub Scout handbook from ca. 1950.  There was a lovely
motor project using just those parts... Maybe you can earn your gold arrow
point for it.

BTW: Tape is useful to hold the wire that becomes the commutator.  I guess
that disqualifies me.

Marc Kaufman (kaufman@polya.stanford.edu)