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FunctionThe cosine galvanometer measures strong electrical currents with a vertical coil, movable about a horizontal axis.
Historical AttributesProbably made and used by John Trowbridge, a Harvard Physics professor.
ProvenanceFrom the Department of Physics, Harvard University, 01/04/1957.
Related WorksJohn Trowbridge, "A New Form of Galvanometer," American Journal of Science (1871): 118-120. [Includes a diagram of the instrument and measurements that match those given in this record.]