Date: Wed, 29 Aug 2001 13:30:47 -0400 (EDT)

Author: Richard Berg

Subject: Re: Pendulum Waves demonstration


I use it as a way to use physics terms to describe SHM and its weird
results. With this demo you can talk about how the pendula become out or
in phase, how they change phase with respect to each other, etc. Sort of
like using Lissajous figures to discuss SHM, frequency, phase, etc. and
use the terms so that the students become more familiar with the whole

Actually, I made the one in the video because a professor went to Moscow
State University about 20 years ago, came back with a video of it, and
asked me if I could make one. Couldn't say no. I don't know if he ever
uses it.

Dick Berg

On Wed, 29 Aug 2001, Karl I. Trappe wrote:

> Just out of curiosity: Does the pendulum wave demo fit into the
> introductory course sequence? I realize it shows lots of sqrt(g/l)
> samples, but are some of you covering phases differences of pendula
> in the introductory text? If so, where do you fit it in? (an example
> of the text chapter and subsection would help me get a sense of how
> to sell this enjoyable demonstration.) Karl
> --
> Dr. Karl I. Trappe Desk (512) 471-4152
> Lecture Demonstration Office Office (512) 471-5411
> Physics Department, Mail Stop C-1600 Home (512) 264-1616
> The University of Texas at Austin
> Austin, Texas 78712-1081

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