Electrostatic machine of the ‘winter’ type
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An electrostatic generator, or electrostatic machine, is a mechanical device that produces static electricity, or electricity at high voltage and low continuous current. In case of the ‘winter’ type a glass disk is rubbed and it charges. Metallic combs transfer the charges to a insulated conductor. Electrostatic generators operate by using manual (or other) power to transform mechanical work into electric energy.