Date: Tue, 19 Nov 2002 06:35:23 -0700

Author: "Zigmund J. Peacock"

Subject: Re: Galileo Galilei

Post:


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Paul, I used 1/32 latex membrane, it is a available from McMaster-Carr.
They are on the web at "http://www.mcmaster.com/", the other good
news.
They will now take personal credit cards and ship direct to you
using
if you use the web. Zig

paul fechtmeister wrote:

>
>
> Hey Zig,
>
> what kind of rubber/plastic do you use for the membrane for your
> vortex/smoke ring cannon thingy? I'm sure it's McMaster Carr but I'm
> thinking of making mine out of a standard metal trash can......I just
> want to get the rubber right.....
>
> I sat in on your clinic at the Boise AAPT meeting..... enjoyed the
> demos.....
>
> Regards
>
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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Paul, I used 1/32 latex membrane, it is a available from McMaster-Carr.

    They are on the web at  "http://www.mcmaster.com/",
the other good

news.

    They will now take personal credit cards and ship
direct to you using

if you use the web.    Zig

paul fechtmeister wrote:


 

Hey Zig,

what kind of rubber/plastic  do you use for the membrane for your
vortex/smoke ring cannon thingy?  I'm sure it's McMaster Carr but
I'm thinking of making mine out of a standard metal trash can......I just
want to get the rubber right.....

I sat in on your clinic at the Boise AAPT meeting..... enjoyed the demos.....

Regards



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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