Re:The US military is testing stratospheric balloons that ne...
by ProblemFactory on Sunday November 18, 2018 @08:45AM
(#18480336)
> Loon balloons are helium, and helium gas is famously hard to contain
It's not like there are any better options? The only two practical lifting gases are hydrogen and helium. Hydrogen leaks even more than helium and is flammable, even though it is much cheaper and abundant.
It's not like there are any better options? The only two practical lifting gases are hydrogen and helium. Hydrogen leaks even more than helium and is flammable, even though it is much cheaper and abundant.