Posts posted by JillSwift
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Good memory. That thread was from @2008 on the posts I checked. I wonder if size somehow makes a difference. It has always baffled me that zeppelins like the Hindenburg appear to have had heavy steel frames and a heavy payload. I suppose that's my subjective impression though, so I should go google it. Thanks for posting the link to the old thread.
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Lighter than air ships have been made to float using light gasses such as hydrogen and helium. Hot air balloons reduce the density of air by heating it. I wonder if it would be possible to make an air ship float by emptying the air out of it instead of replacing that air with light gas.
This rings a bell. I think it's been tried before...
As I recall, a "vacuum balloon" would be significantly more efficient (in the 7-10% range or so) than a helium or hydrogen balloon, except for the weight penalty incurred by the need for a rigid envelope.
Oh, right here on these forums:
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Hello there!

Hey. I'm just a gal of limited education with experience in information technology and working with and around psychology based programs (from whence my interest in psychology stems).
People say I'm very intelligent and I say for everyone's sake that I hope not

Here's to science! Woohoo!
Political Humor
in Politics
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Edited by JillSwift
Oh my gaWD I love The Onion.