Uploaded December 2013 | Updated September 2026, 1 week ago

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Watch this LEGO-built electrostatic motor reverse direction as rotating neodymium magnets collide elastically with fixed magnets on the frame.

The motor’s direction is influenced by a subtle rebound force, triggered when aluminum balls align with brass electrodes—an inherently unstable configuration.

The six-pole induction motor features a stator of six brass balls, with a 17 kV potential difference between adjacent electrodes. Magnetic repulsion acts as a conservative force, akin to an ideal spring, and is modeled as an elastic collision.

Explore the complete set of electrostatic motor demos:
youtube.com/playlist?list=PLCbYhDNjOviH-AcYF29fK5nk8UB3CJZ06

#ElectrostaticMotor #LegoClockEscapement #legoescapement #legoclockmechanism #simpleharmonicmotion