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Jan 12, 2022 at 15:04 comment added Emre now if you combine the two and make a hot helium ship (filled with not just regular helium, but really hot helium) then you'd get a tiny bit more lift. Maybe almost enough to offset the cost of heating elements and power source... just maybe.
May 30, 2019 at 23:36 comment added Bob Jacobsen If you replace a mole of air with a mole of helium, you get about 12gm of lift not matter what altitude you’re at. The issue is how far an equal-pressure balloon can expand before it can no longer contain the volume of gas.
S May 30, 2019 at 21:35 history suggested Ryan Jensen CC BY-SA 4.0
Removed inappropriate commas, changed incorrect form of "weight"
May 30, 2019 at 21:30 review Suggested edits
S May 30, 2019 at 21:35
Jul 19, 2018 at 19:19 vote accept Árpád Szendrei
Jul 19, 2018 at 14:19 comment added V.F. @CriglCragl Looks like it has best performance in fiction.
Jul 19, 2018 at 13:03 comment added CriglCragl even if the weight of the gas inside a balloon was zero Like for en.m.wikipedia.org/wiki/Vacuum_airship
Jul 19, 2018 at 11:29 history answered V.F. CC BY-SA 4.0