A mobile is an abstract sculpture made chiefly out of sheet metal, steel rods, wire and wood. Some or all of these elements move, propelled by electric motors, wind, water or by hand.
History was a trash bag of random coincidences torn open in a wind. Surely, Watt with his steam engine, Faraday with his electric motor, and Edison with his incandescent light bulb did not have it as their goal to contribute to a fuel shortage some day that would place their countries at the mercy of Arab oil.
The fuel cell is just a fundamentally inferior way of delivering electrical energy to an electric motor than batteries.
One has the feeling of enormous safety. You don't have the torque from the propeller. You have no noise; it's almost like little electric motors humming inside, and you feel sort of safe.
Like my father, I would never as a child throw anything away, keeping old toys, electric motors and bits of broken machines under my bed in what I called my Box of Useful Things.
Everybody recognizes that if you can make very efficient electric motors, you can make a quantum leap forward.
