If an atmosphere is made of hydrogen then hydrogen will not be lighter than
hydrogen. A vacuum, would work if you had a diamonoid shell that would be
stiff enough to hold the vacuum.
Gina "Nanogirl" Miller
http://www.nanoindustries.com
http://www.nanogirl.com
> I've been thinking about blimps.
> Consider Jupiter....a gas giant....now if for some reason we wanted to
float
> a "city" in jupiter's atmosphere....(or saturn's or uranus or neptune's)
> which have an atmosphere of (mostly) hydrogen......what would be used?
> Hot hydrogen or a vacumn?
> Evmick
> Effingham Illinois
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