Date: Wed, 13 Apr 2005 13:48:41 -0700

Author: Tim Cook

Subject: RE: New Automated Pendulum Wave Display at Arizona State

Post:

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Thanks Jerry, Wayne and Gary really did a great job for us. It was sent
out for anodization.

=20

Tim=20

_____=20=20

From: owner-tap-l@listproc.appstate.edu
[mailto:owner-tap-l@listproc.appstate.edu] On Behalf Of Gerald Zani
Sent: Wednesday, April 13, 2005 11:44 AM
To: tap-l@listproc.appstate.edu
Subject: Re: New Automated Pendulum Wave Display at Arizona State

=20

Tim,

That is a great design and masterful machining.
Did you have it anodized in house?

It is worth publishing in the PIRA news and also submitting for
publication in the TPT. -- JZ

At 01:49 PM 4/13/2005, you wrote:



Wow!! A thing of beauty ...
=20
Cliff

----- Original Message -----=20

From: Tim Cook =20=20

To: tap-l@listproc.appstate.edu=20

Sent: Wednesday, April 13, 2005 12:09 PM

Subject: New Automated Pendulum Wave Display at Arizona State

Hello Everyone:

=20

I'd like to announce our automated Pendulum Wave display which we
recently unveiled in our lobby display cases. This was Wayne
Easterling's project and he did an outstanding job. Thanks to him I
believe it's the finest thing we've ever produced. I helped some and it
was built by a master, Gary Jarrette, in our Mechanical Instrument Shop.
It has been a big hit for us. Check it out by clicking on the thumbnail
in the PIRT News sidebar on our web site at http://pirt.asu.edu/ . There
are 29 images, including action and assembly images.

=20

We are indebted to the information published by Dick Berg and others
listed below. Many thanks to all of these! Also thanks to Jim Krider
here for putting it up on the web for us so nicely.

=20=20

* Richard E. Berg, Pendulum Waves, A Demonstration of Waves Using
Pendula, AJP 59, 186-187 (1991).=20
* James A. Flaten and Kevin A. Parendo, Pendulum waves: A lesson
in aliasing, AJP 69, 778-782 (2001).=20


=20

=20

Tim Cook

=20

Tim Cook, Team Leader, Physics & Astronomy Instructional Resource Team

Arizona State University, Department of Physics & Astronomy

PO Box 871504, Bldg. PS Rm F470, Tempe, Arizona 85287-1504

480-727-8398;fax 480-965-7954; tim.cook@asu.edu; http://pirt.asu.edu/

=20


Gerald Zani e-mail: Gerald_Zani@brown.edu
Manager of Demonstrations phone: (401) 863-3964
Department of Physics FAX: (401) 863-2024
Brown University Providence, RI 02912-1843 USA
=20
http://www.physics.brown.edu/physics/demopages/demo/
http://www.physics.brown.edu/physics/userpages/staff/Gerald_Zani/index.h
tml
=20
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.=20
Now's your chance.

Henry David Thoreau, Journal entry, 1850.


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