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

 "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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