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| Keywords: Electrophorus.png electrophorus a simple manual electrostatic generator invented in 1762 by Swedish professor Johan Carl Wilcke The electrophorus consists of a flat cake of dielectric material such as pitch or wax and a metal plate with an insulated handle that sits on top of it The cake is first charged by rubbing it with fur right and the plate is set on top of it The charge of the cake causes the charges in the metal plate to separate due to electrostatic induction; if the cake is charged positively the top of the plate aquires a positive charge and the bottom acquires a negative charge Then the top of the plate is grounded by touching it with a finger shown The positive charges on top of the plate drain off to ground Then the plate with its remaining negative charge is lifted off the cake 1891 Retrieved 2008-08-08 from http //books google com/books id Wf0-AAAAYAAJ pg PA190 Amédée Guillemin 1891 Electricity and Magnetism revised by Sylvanus P Thompson MacMillan New York p 190 fig 105 on Google Books Creator Amédée Guillemin Public domain - Guillemin died 1893 PD-old-100 Uploaded with UploadWizard Electrophorus device Domestic cat fur-skins | ||||
