3480038 Gauss and Weber\'s mirror galvanometer, 1897; (add.info.: Gauss and Weber\'s mirror galvanometer (Gottingen; 1833). 1897. A galvanometer is an electromechanical instrument for detecting and measuring electric current. The most common use of galvanometers was as analog measuring instruments; called ammeters; used to measure the direct current (flow of electric charge) through an electric circuit.); Universal History Archive/UIG; out of copyright.
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