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    Jonah..... I think the balloons you are thinking of are called
"airship" balloons. That is the only type I can think of that we used for
the demos that we did. Good Luck on your search.

  Terry Nixon - National Air and Space Museum

On Thu, 9 Oct 2003, Jonah Cohen wrote:

> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> OK, perhaps someone can help me.
>
> Think of the following experiments: you drop a piece of burning paper
> into
> an Erlenmeyer flask, then put a balloon over the top which gets pushed in
> by
> air pressure. Or you use liquid nitrogen to shrink a whole bunch of
> balloons
> into a beaker, they re-expand when you take them out to warm up. Both of
> these demos require hot dog shaped latex balloons. Not round ones, not
> the
> super skinny type used for balloon animals... hot dog shaped balloons.
>
> Where in the heck can one find these things???
>
> Help!
> Jonah Cohen
> Outreach & Public Programs Manager
> Science Center of Connecticut
>
>
> "To announce that there must be no criticism of the President, or that we
> are to stand
> by the President, right or wrong, is not only unpatriotic and servile,
> but is morally
> treasonable to the American public."
>         -Theodore Roosevelt
>
>
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