3 ms·
In the limit of no atmosphere, it's surely impossible. In the case of a thick, incompressible atmosphere (a body of water), even humans can do it.
by sobellian 3y ago
In the limit of no atmosphere, it's surely impossible. In the case of a thick, incompressible atmosphere (a body of water), even humans can do it.
- Intralexical 3y ago"Titan's gravity is 14% of Earth's, and its atmosphere 50% denser. So if you can generate 9% of your Earth body weight in lift, you can fly on Titan." https://xkcd.com/620/ https://xkcd.com/620/
- londons_explore 3y ago> even humans can do it. I think this is a misconception. Even in water, you cannot provide lift equal to your bodyweight. It is easier to swim (vs sink) in water because the water gives a large amount of buoyancy. However, in air and on mars, buoyancy is small enough to be negligible.
- sobellian 3y agoIt's true that buoyancy helps, but even so swimming clearly provides a greater propulsive force than doing the same motion in air despite the greater drag in water.