3 ms·If you can’t maintain altitude without losing significant airspeed, you’re just falling.by Retric 8mo agoIf you can’t maintain altitude without losing significant airspeed, you’re just falling.behehebd 8mo agoEven if you maintain both you can still be falling (orbits!)Retric 7mo agoGravitational orbits lose energy over time. Not really relevant on human timescales but interesting trivia if nothing else.behehebd 7mo agoDue to friction? Or is it other physics?Retric 7mo agoGravitational waves, though in the vast majority of case they are extremely weak. https://en.wikipedia.org/wiki/Gravitational_wave https://en.wikipedia.org/wiki/Gravitational_wave