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No. To float you would need a gas lighter than hydrogen, which isnt a thing. And powered flight (wings) without oxygen would be trickey, requiring more of a ro
by sandworm101 3y ago
No. To float you would need a gas lighter than hydrogen, which isnt a thing. And powered flight (wings) without oxygen would be trickey, requiring more of a rocket motor than an aeroplane engine.
Yes, you could use a balloon filled with vacuum, but lifting something the size of an orbital rocket in a hydrogren atmosphere would require a vacuum chamber at least the size of a city, possibly the size of a small state. It would probably be easier to build a tower.
- zuminator 3y agoSorry if I wasn't clear, but I brought up the question of floating with respect to nitrogen/CO2 atmospheres (thinking Titanlike or Venuslike) not hydrogen.
- lisper 3y agoIt's a moot point, but I still want to point out that "a gas lighter than hydrogen" is a thing: it is simply hydrogen at a higher temperature, i.e. a hot-hydrogen balloon, analogous to a hot-air balloon.
- thfuran 3y agoWell, maybe if there's no oxygen nearby.
- simcop2387 3y agoI do not want to ride in a hot hydrogen balloon :)
- eru 3y agoWhy not? Hydrogen inside a hydrogen atmosphere is perfectly safe. It's hydrogen inside an oxygen atmosphere that's the problem. (So on Jupiter, you wouldn't want to ride in an oxygen balloon, ie you wouldn't want to ride in a hot air balloon there.)
- pottspotts 3y agoHow do you "fill something with vacuum"?
- xyzzy123 3y agoWith a vacuum pump ;)
- deleted 3y ago[deleted]
- mr_toad 3y ago> No. To float you would need a gas lighter than hydrogen, which isnt a thing. The atmosphere gets denser further down. You just need a negative pressure vessel, or to heat the hydrogen, like a hot air balloon. At 1 (Earth) atmospheric pressure the gravity of most Gas giants is quite low.