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fortran77
on Oct 30, 2021
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Helium: South Africa strikes new 'gold'
I wonder if it's really that risky to use hydrogen for party balloons that will be outdoors. Weather balloons and other un-manned lifting platforms already use it.
https://www.fp2fire.com/hydrogen-balloon-inflation/
trevyn
on Oct 31, 2021
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Manned hydrogen ballooning is definitely still a thing.
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https://www.fp2fire.com/hydrogen-balloon-inflation/