Funky Looking Motor is Powered by Static Electricity

Hackaday

Corona Motor (Electrostatic Drive)

[Steven Dufresne] of Rimstar.org is at it again with another very functional science experiment. This week he’s showing us how he made a large electrostatic motor, also known as a Corona Motor.

A Corona motor makes use of a cool
phenomenon called the Corona discharge, which is the ionization of a fluid
(in this case, air) surrounding a conductor that is energized. He’s done other high voltage experiments that take advantage of this, like his Ion Wind propelled Star Trek Enterprise!corona_motor_electrostatic_atmospheric_motor_diagram

The motor works by using an even number of electrodes on the motor, each electrically charged; positive, negative, positive, negative, etc.

Because each electrode is the opposite charge, they want to repel each other — but since the cylinder is electrically insulated, the charges have no where to go — instead the cylinder begins to rotate as the charges attract back and forth — when a positive charge on the…

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