Article View: sci.physics
Article #7727Re: PUZZLE
From: Jeff DePolo
Date: Mon, 20 Mar 1989 09:23
Date: Mon, 20 Mar 1989 09:23
30 lines
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2118 bytes
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
+----------------------------------------------+------------------------------+
| Jeff DePolo [depolo@eniac.seas.upenn.edu] | o The best things in life |
| => The University of Pennsylvania <= | come in six-packs. |
| Class of 1991 - Computer Science Engineering | o Life begins at 85 MPH. |
+----------------------------------------------+ o It's not illegal if they |
| DISCLAIMER: Someone else used my account. | don't catch you. |
+----------------------------------------------+------------------------------+
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!ucbvax!tut.cis.ohio-state.edu!rutgers!netnews.upenn.edu!eniac.seas.upenn.edu!depolo 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> Sender: news@netnews.upenn.edu Reply-To: depolo@eniac.seas.upenn.edu.UUCP (Jeff DePolo) Organization: University of Pennsylvania Lines: 30