Date: Wed, 23 Aug 2000 09:13:20 -0400 (EDT)

Author: Steve Wonnell

Subject: Re: Small angle demo



We do a very simple demonstration along these lines,
it's simply two pendulums (metal balls hanging on a string)
of the same length. You start one swinging with a small
amplitude, and the other with a large amplitude, and
within a few periods they go out of phase. If they
both have small amplitudes, then it takes much, much
longer ( >20 periods ) for them to go out of phase.

Steve W.

On Wed, 23 Aug 2000, Gerald Zani wrote:

> Date: Wed, 23 Aug 2000 08:58:10 -0400
> From: Gerald Zani
> Reply-To:
> To:
> Subject: Small angle demo
> Tappers,
> I am back from vacation and I am looking for a demo for an introductory math
> topic, the small angle approximation. Please respond if you HAVE a demo that
> you perform to show the small angle approximation.
> If you do not have a demo for this then do not feed me untried ideas. I am
> looking for someone with experience on this demo topic. Jerry
> Gerald Zani
> Manager of demonstrations
> Department of Physics
> Brown University
> Box 1843
> Providence, RI 02912
> (401)863-3964
> Do a little more of that work which you have confessed to be good,
> which you feel that society and your most Just Judge rightly demand of you.
> Cultivate the tree which you have found to bear fruit in your soil.
> If you have any experiments you would like to try, try them.
> Now's your chance.
> Henry David Thoreau, Journal entry, 1850.

Steven K. Wonnell
Physics and Astronomy Department E-Mail:
Johns Hopkins University Phone: (410) 516-4696
3400 N. Charles Street Fax: (410) 516-7239
Baltimore, MD 21218-2686 Office: 534 Bloomberg (x5468)