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Article #1998Re: Do You Know?
From: Lowell Herr
Date: Mon, 03 May 1993 12:39
Date: Mon, 03 May 1993 12:39
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> > The one demonstration I recall from freshman physics at Clarkson > University was one similiar to the previous discussion about dropping > a magnet down a long pipe. The difference in this demo is that the > pipe was supercooled with liquid nitrogen. This caused the magnet to > move very slowly through the pipe (almost stopping). At the time, I > thought it was an interesting demonstration, and I think it would get > students thinking about what happens. I did not even need to supercool my Cu pipe - the first time I set up this demo. I used a standard IRON metal clamp to attach the pipe to the lab table. The magnet never did hit the floor! <grin> Fortunately I was doing this BEFORE the students came into the room. Lowell
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 16cfd8,6005348f9bf728de X-Google-Attributes: gid16cfd8,public X-Google-ArrivalTime: 1993-05-03 06:47:59 PST Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU Path: arc1-ca.pugleaf.net!gmd.de!ira.uka.de!howland.reston.ans.net!paladin.american.edu!auvm!CATSEQ.CATLIN.EDU!HERR Return-Path: <@AUVM.AMERICAN.EDU,@PSUVM.PSU.EDU:owner-physhare@PSUVM.PSU.EDU> Return-Path: <@PSUVM.PSU.EDU:herr@CATSEQ.CATLIN.EDU> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Message-ID: <Pine.2.27-experimental.9305030635.A28484@catseq.catlin.edu> Newsgroups: bit.listserv.physhare Date: Mon, 3 May 1993 06:39:36 -0600 Sender: Sharing resources for high school physics <PHYSHARE@PSUVM.BITNET> From: Lowell Herr <herr@CATSEQ.CATLIN.EDU> Subject: Re: Do You Know? In-Reply-To: <9305031153.AA28244@catseq.catlin.edu> Lines: 15