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What kind of ventilation do the presentation areas for demos with fire or hydrogen balloons have?  Seems I recall you have to have an outdoor/rooftop tank for hydrogen; is that correct? Are any science centers doing the Ruben's tube demo and, if so, what ventilation do you have for that? 

Thanks for any information!
Becky

Becky Fox Matthews
Senior Educator/Special Projects Manager
Adventure Science Center
800 Ft. Negley Blvd.
Nashville, TN 37203
615-401-5073
 
Our Mission
Adventure Science Center ignites curiosity and inspires the lifelong discovery of science. 

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