If (big IF) this turned out to be real, could we use these on helicopters instead of blades? Or are blades more efficient?
Also would it make the hoverboard feasible, or does it require way too much energy?
Also would it make the hoverboard feasible, or does it require way too much energy?
This inefficiency would still be great in space because you don't have to carry reaction mass with you. (and hovering on earth would mean sustained 1g acceleration in space, which is fantastic.) But if you're swimming through reaction mass anyway, then just push it as efficiently as possible.