ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Charliss

Our 'Liquid Nitrogen Show' uses directly and indirectly (pouring, boil off 
etc) 2L. It is a 30 minute show.

We use approx 25L per week and thus could manage with one 30L dewar. However 
this is heavy and so we also have a second 10L dewar which we use to 
transport to our theatre. Transfering to the 10L dewar also creates loss, 
especially if the 10L is ever emptied completely.

Regards
Glen

----- Original Message ----- 
From: "Charliss Fenton" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, June 09, 2009 11:10 PM
Subject: Liquid Nitrogen


ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related 
institutions.
*****************************************************************************

Hey all,

We're looking to get set up with liquid nitrogen for demos and had some 
questions:  How much do you typically use for one demonstration (and how 
long is your demonstration)?  Do you have a storage dewar on site; if so, 
what size works best for you?

Thanks!
Charliss

---

Charliss Fenton
Gallery Scientist
Connecticut Science Center



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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

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