Date: Mon, 13 Dec 2004 10:45:27 -0500

Author: jfeliciano@notes.cc.sunysb.edu

Subject: Re: Pocket watch impulse demo

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Thanks to all who responded to this thread. Thanks to Zig for finding a
source for an almost obsolete watch. They are getting harder and harder
to find.

Joe



"Zigmund J. Peacock"
Sent by: owner-tap-l@listproc.appstate.edu
12/09/2004 11:25 AM
Please respond to
tap-l@listproc.appstate.edu


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Subject
Re: Pocket watch impulse demo






Joe, it was Doug Johnson at Denver, and I still need to set one up here.
Zig

jfeliciano@notes.cc.sunysb.edu wrote:

Hi Tappers,


I think it was at the Rochester, New York AAPT meeting that someone
demonstrated impulse using a pocket watch with a main-spring movement.
They glued a small mirror on the glass and pointed a laser into the
mirror. The laser spot was projected from the mirror to the wall of the
lecture hall as the watch reacted to the main-spring movement. It was a
very nice demo. I am sorry to say that I don't remember who brought that
demo to the workshop, please forgive me for that oversight, but I would
like to know if that person would be willing to share a write-up of that
demo. Thanks in advance.

Joe

--
Zigmund J. Peacock
WWW.physics.utah.edu/people/staff/peacock.html
University of Utah/Physics peacock@physics.utah.edu
115 SOUTH 1400 EAST #201 Tel 801 581 6602
SALT LAKE CITY UT 84112-0830 Fax 801 581 4801

"We sleep safely in our beds because rough men stand
ready in
the night to do violence to those who would do us harm"
-- George Orwell

"All that is necessary for the triumph of evil is that
good
men do nothing!"
-- Edmund Burke


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Thanks to all who responded to this
thread.  Thanks to Zig for finding  a source for an almost obsolete
watch.  They are getting harder and harder to find.  



Joe

"Zigmund J. Peacock" <peacock@physics.utah.edu> Sent by: owner-tap-l@listproc.appstate.edu 12/09/2004 11:25 AM Please respond to tap-l@listproc.appstate.edu

To tap-l@listproc.appstate.edu cc Subject Re: Pocket watch impulse demo

Joe, it was Doug Johnson at Denver, and I still need to
set one up here. Zig



jfeliciano@notes.cc.sunysb.edu
wrote:



Hi Tappers,





I think it was at the Rochester, New York AAPT meeting that someone demonstrated
impulse using a pocket watch with a main-spring movement.  They glued
a small mirror on the glass and pointed a laser into the mirror.  The
laser spot was projected from the mirror to the wall of the lecture hall
as the watch reacted to the main-spring movement.  It was a very nice
demo.  I am sorry to say that I don't remember who brought that demo
to the workshop, please forgive me for that oversight, but I would like
to know if that person would be willing to share a write-up of that demo.
 Thanks in advance.



Joe



--

Zigmund J. Peacock           WWW.physics.utah.edu/people/staff/peacock.html

University of Utah/Physics              
    peacock@physics.utah.edu

115 SOUTH 1400 EAST #201              
      Tel 801 581 6602        

SALT LAKE CITY UT 84112-0830            
    Fax 801 581 4801



               
"We sleep safely in our beds because rough men stand ready in

the night to do violence to those who would do us harm"

       -- George Orwell



               
"All that is necessary for the triumph of evil is that good

men do nothing!"

        -- Edmund Burke




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From papirio@physics.umass.edu Mon Dec 13 12:06:13 2004