yes, but unsafe, Helium is prefered. The density of hydrogen is much lower than air than helium.
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Only if the density is LESS then the other...how much is in it?
Helium Density - 0.1786 g/L
Hydrogen density - 0.08988 g/L
It should move approx 2 times faster yes.
Helium Density - 0.1786 g/L
Hydrogen density - 0.08988 g/L
It should move approx 2 times faster yes.
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probably as one filled with H2 will be 1/2 the weight of He.