Haha it’s not practical by any means as you point out, but a scaled down version might be…
Yitaek Hwang
11

Charge your car with something that is 45% efficient? And then there are eddy currents in the car metal.

A better way for lots of these things is the approach that Apple took with it’s power connector: Magnetic coupling. If you forget to unplug, it just jerks out. Internally on big power items like cars, the ends have relay switches internally so that the ends aren’t live until there is a doubled magnetic field.

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