MadSci Network: Physics

Subject: Balloon lift calculations with different gases...

Date: Mon Jul 13 13:24:09 1998
Posted by John McCormick
Grade level: undergrad
School: Chemeketa Community College
City: Salem State/Province: Oregon
Country: USA
Area of science: Physics
ID: 900354249.Ph

How do you calculate the lift generated by hydrogen, helium, or 
(theoretically) a vacuum in a balloon (probably mylar)?  How high 
could such balloons rise, given an ideal situation and a standard 
mylar or similar balloon material?  What difference does a hot gas 
make over a cold gas?  What other gases could provide lift in our 
atmosphere (i.e. are lighter than air)?

Re: Balloon lift calculations with different gases...

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