What about helium? Last time I checked, helium was getting way more expensive th... | Hacker News

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		Florin_Andrei on Jan 17, 2013 \| parent \| context \| favorite \| on: I sent a balloon up to capture 360x180 degree imag... What about helium? Last time I checked, helium was getting way more expensive than before, and it was actually kind of hard to find.

stilldavid on Jan 17, 2013 [–]

Hydrogen is a great substitute - it's abundant, cheap, provides a bit more lift and if you're aware of the risks and handle it properly it's quite safe.

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