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Hi Marcia,

A friend of mine does this to explore air pressure by simply putting the student in a large heavy-duty plastic(50 gallon or so) trash bag and having them sit in the bag with their arms and legs crossed.  He then has the student hold the bag snug around their neck with the vacuum hose stuck down into the bag next to their neck.  The student can tell when it is tight enough to not allow air in so the air gets sucked (pushed) out of the bag.

Hope this helps.

Bill Schmitt, The Science Center of Inquiry

-----Original Message-----
From: Informal Science Education Network [mailto:[log in to unmask]] On Behalf Of Marcia Hale
Sent: Thursday, February 07, 2013 2:24 PM
To: [log in to unmask]
Subject: G force simulation

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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Looking for instructions on how to make a "body bag" to simulate g forces.  Have done this activity at a couple of different science centers, but have lost my schematics on how to make the bag.  Hoping someone out there has done this.  Basically it's a large body bag made out of usually 6 ml visqueen.  People get into the bag, sit on a chair and holding bag tightly closed around their neck get ready to experience "G" forces.  The bag has had an area prepared to hold a shop vac tube...the shop vac is turned on to suck air out of the bag which collapses tightly around the body.  Force is felt, giggles insue, cheap, easy....and it seems we did this all with duct tape, visqueen, a little bit of cardboard and PVC to construct the area where the vac nozzle is inserted.  Thanks in advance to anyone who can help me out with the details so I can get this made.
Marcia Hale
Washington County Museum
Hillsboro, OR


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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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