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Is it possible to create a large hollow structure then vacuum all the air out so that it displaces enough atmospheric air to float? For example a giant glass sphere weighing 1E5 kg that displaces 1.5E5 kg of air. The only limitation I can think of is unless it's so large that it extends beyond our atmosphere.

2007-02-13 02:35:59 · 5 answers · asked by AaronX 2 in Science & Mathematics Engineering

5 answers

You mean, I assume, float in air.

I don't think so. Air is just too light, and air pressure too strong. If you took all the air out of a hollow ball, you could have one of two results.

(1) The shell material is so heavy, that the ball does not float on air.

(2) The shell material is so weak, that the air pressure crushes it.

But maybe someone will invent a super-light, super-strong material any day now.....

2007-02-13 02:41:41 · answer #1 · answered by morningfoxnorth 6 · 1 0

It would be a very good way to do it,it would be smaller than a helium balloon.
The only problem is,making a sphere that could with stand the pressures trying to collapse it.

2007-02-13 10:51:05 · answer #2 · answered by Billy Butthead 7 · 0 0

in netherlands this teqneque is use where som places are flooded in winter so houses and bridges are too light and filled with polymers and at flood they float

2007-02-13 10:55:46 · answer #3 · answered by koki83 4 · 0 0

yes

2007-02-13 10:38:51 · answer #4 · answered by booge 6 · 0 0

yes...but why would you need to?

2007-02-13 10:40:33 · answer #5 · answered by Anonymous · 0 0

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