Had a thought, would it be possible to use solar power on top of a hydrogen filled balloon?, with a couple of motors that can push it in a direction of choice...
But, the catch is, the circuitry would have a way of converting say 100ml of onboard water into hydrogen to keep the balloon up and floating, but then i have no idea how much hydrogen could be produced by small solar cells
Idea being that these drones could hover above crowds supplying wifi/mobile data to the crowd (which could be focused from a tower by a bi-directional beam laser/wifi etc km's away)
But, the catch is, the circuitry would have a way of converting say 100ml of onboard water into hydrogen to keep the balloon up and floating, but then i have no idea how much hydrogen could be produced by small solar cells
Idea being that these drones could hover above crowds supplying wifi/mobile data to the crowd (which could be focused from a tower by a bi-directional beam laser/wifi etc km's away)
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