ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************
I would also suggest that you make several announcements when
demonstrating potentially dangerous demos that they should never be
attempted at home. You'd be surprised at how many folks do, and in
some cases come back to blame (read "sue") you. You can't stress
safety enough!
Beryl
>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>We have done this demo for large groups many times but never in
>doors. We also keep visitors at least 50 feet or more away
>(depending on the size of the bottle we use and how much liquid
>nitrogen. As long as people are far enough away from the bucket
>there should little chance of anything going wrong. Our motto is
>always "Safety First!"
>
>Max Scharfenberger
>VP Programs
>Odyssium
>11211 142 Street
>Edmonton, AB T5M 4A1
>phone: 780-452-9100
>fax: 780-455-5882
>[log in to unmask]
>
>
>-----Original Message-----
>From: Informal Science Education Network
>[mailto:[log in to unmask]]On Behalf Of Jonah Cohen
>Sent: Wednesday, January 26, 2005 1:12 PM
>To: [log in to unmask]
>Subject: Re: Large Assembly Programs
>
>
>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>I love a good kaboom as much as the next guy (ok, more than the next guy),
>but I must ask: isn't the demo below pushing the envelope of safety?
>
>Jonah Cohen
>Outreach & Public Programs Manager
>Science Center of Connecticut
>
>"The difference between genius and stupidity is that genius has limits."
> -Albert Einstein
>
>-----Original Message-----
>From: Fisher, Martin [mailto:[log in to unmask]]
>Sent: Monday, January 24, 2005 10:13 AM
>To: [log in to unmask]
>Subject: Re: Large Assembly Programs
>
>3) A little liquid N2 poured into a small plastic container, screw-on the
>cap, toss it into a strong metal bin filled w/ water. The nitrogen changes
>into a gas, pressure increases and the bottle will explode. Move way and
>make sure that you're not near the audience. Small bottles (shampoo bottles
>from hotels) work well. The bigger the bottle (soda bottles), the bigger the
>explosion and the danger. Wear gloves, goggles and ear muffs.
>
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>More information about the Informal Science Education Network and the
>Association of Science-Technology Centers may be found at http://www.astc.org.
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--
Beryl Rosenthal, Ph.D.
Director of Exhibitions and Public Programs
MIT Museum
265 Massachusetts Ave.
Cambridge, MA 02139
Tel: 617-452-2111
Fax: 617-253-8994
[log in to unmask]
"A great place to explore ideas, invention, and innovation:
http://web.mit.edu/museum"
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More information about the Informal Science Education Network and the
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