Date: Thu, 10 Aug 2000 09:09:56 -0700

Author: Ron Ebert

Subject: Re: Shadow Projection

Post:

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At 08:35 AM 08/10/2000 -0700, you wrote:

>Hi All,
> We have a new demo that shows the relationship of simple harmonic
> motion to that of uniform circular motion. This demo needs to be shadow
> projected in our large lecture halls, but I haven't been able to find a
> satisfactory light source as yet. I would appreciate any recommendations
> for light sources you might have.
>
>Thanks,
>Wayne Easterling
>Arizona State University

A an old slide projector is what we use for this demo. You might be able to
pick one up at government surplus. Ours had a small sliding cartridge that
was used to hold slides. With it removed, you get a bright focused projection.


Ron Ebert
UCR Physics Department
ron.ebert@ucr.edu
http://phyld.ucr.edu
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At 08:35 AM 08/10/2000 -0700, you wrote:

Hi All,


        We have a new demo that shows the relationship of simple harmonic motion to that of uniform circular motion.  This demo needs to be shadow projected in our large lecture halls, but I haven't been able to find a satisfactory light source as yet.  I would appreciate any recommendations for light sources you might have.



Thanks,

Wayne Easterling

Arizona State University