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The mechanical fan originated in 1830. Inspired by the structure of clocks, an American named james byron invented a mechanical fan which can be fixed on the ceiling and driven by a spring. The cool breeze brought by the rotating blades of this fan makes people feel cool, but it is troublesome to climb the ladder to wind up.In 1872, a Frenchman named Joseph developed a mechanical fan which was started by a clockwork turbine and driven by a gear chain device. This fan is much more refined than the mechanical fan invented by Byron, and it is more convenient to use.In 1880, American Shule first installed the blade directly on the motor, and then connected it to the power supply. The blade rotated rapidly, and a burst of cool wind came. This was the first electric fan in the world.