Article View: sci.physics
Article #7723Re: PUZZLE
From: Sun Warrior
Date: Sat, 18 Mar 1989 03:26
Date: Sat, 18 Mar 1989 03:26
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Have any ideas?????? A recent MIT physics (freshman) extra-credit problem: Given 2 small rectangular magnets, 2 paper clips, 2 thumb tacks, approx. 5 feet of wire, a small block of wood (4"X2"X.5") build a DC motor running of 1 1.5V that can at least reach 2600 rpm. The use of glue, tape, etc in the final product will disqualify you. Only the above mentioned items can be in the final product. The use of a drill, saw, etc. in building the motor is ok.
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arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!xanth!ukma!tut.cis.ohio-state.edu!bloom-beacon!athena.mit.edu!yphotonsReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!xanth!ukma!tut.cis.ohio-state.edu!bloom-beacon!athena.mit.edu!yphotons From: yphotons@athena.mit.edu (Sun Warrior) Newsgroups: sci.physics,sci.electronics Subject: Re: PUZZLE Message-ID: <9916@bloom-beacon.MIT.EDU> Date: 18 Mar 89 03:26:47 GMT References: <24615@pbhya.PacBell.COM> Sender: daemon@bloom-beacon.MIT.EDU Reply-To: yphotons@athena.mit.edu Organization: Massachusetts Lines: 9