Uploaded February 2013 | Updated September 2026, 1 week ago

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12,000 Volts ring three Swiss cowbells in Lego frame.

This tiny Lego-technic model is just a one-step improvement over the often-seen electrostatic "pendulum and two soda cans". The background Swiss cowbell is charged with a positive potential of 12KVolts while the two bells in the foreground are electrically grounded.

The bells are deliberately spaced far enough from the aluminum-bead pendulum to demonstrate that not only humans but machines too, can sometimes hesitate before making a decision...

Watch electrostatic experiment producing random motion:
youtube.com/playlist?list=PLCbYhDNjOviH1-VtkL89zoZVc8kMfLVTH

#electrostaticmotor #cowbell #cowbells #electrostaticexperiment #HighVoltagePhysics #chargedparticles