The Electromechanical Charge Shuttle: Electrostatics in Action

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Scientific Paper
Title The Electromechanical Charge Shuttle: Electrostatics in Action
Author(s) Reg Hackshaw
Keywords do-it-yourself, electromechanical charge shuttle, electrostatic toy, reciprocating motors
Published 2004
Journal Electric Spacecraft Journal
Number 37
Pages 25-26

Abstract

The theme of a charge carrying sphere oscillating between two capacitor plates maintained at a potential difference was incorporated into a variety of popular toys and instructional demonstrations in the 18th and 19th centuries. On the basis of how the charges are transported from the sphere to the plates, the apparatus presented in this article originally was termed a ?reciprocating motor,? and more recently an ?electromechanical charge shuttle.? A functional description and general instructions for assembling this interesting apparatus from inexpensive materials is followed by a brief sketch of a laboratory exercise.