ISEN-ASTC-L is a service of the Association of Science-Technology Centers
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The performance of VDG is dominated by humidity. If your atmosphere is very 
humid you will have problems with all models. We built our own 
http://cedirsd.uow.edu.au/science/pictures/P1000026.JPG

Glen


----- Original Message ----- 
From: "Robert Schmitt" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, June 06, 2009 6:55 AM
Subject: Van de Graaff models?


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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Hello everyone,

We just purchases a large Van de Graaff from Sargent-Welch 
(http://sargentwelch.com/large-van-de-graaff-generator/p/IG0038102/) made by 
Science First. I've worked very little with Van de Graaff's in the past and 
I am uncertain as to how the performace of this model matches up with 
others. What are your thoughts on this model if you have used it before? 
Would we be better off returning it and seeking a different model? Any input 
would be very helpful!

Thank you,
Robert

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

Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.

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