How Tesla Will Change The World - Wait But Why: "Fire joules were hard to harness, but if you sent them into water, they’d get the water molecules to increasingly freak out and bounce around until finally those molecules would fully panic and start flying off the surface, evaporating upwards with the force of the raging fire below. You’d have successfully converted the thermal energy joules of the fire—which we didn’t know how to directly harness—into a powerful jet of steam we could control.
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