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RE: Hypothetical Illustration # 2: Cloud city part 1
Ah, ic. Floating world, not sure whether keeping it floating will have too much energy consumption.
Ah, ic. Floating world, not sure whether keeping it floating will have too much energy consumption.
Like a balloon, as long as those gas are not escaping. Then it will be effortless. Or may be require enegry to pump in oxygen when the gas volume started to decreased.
Ah, got point, with air then it can float. haha, nice one :)