Poggendorf 1821 elliptical-coil magnetic multiplier (replica)
date: label: Date made
content: 1962
name: label: maker
content: Smithsonian Institution
notes: label: Description (Brief)
content: Replica of a device made in 1821 by Johann Poggendorf (1796-1877, Germany). A 6" square back plate with two elliptical coils mounted on horizontal supports. A compass is set on a plate between the coils. Two brass mercury cups on the base provide contacts for battery leads. Former Acc# 244394, cat# 321588. Reference: Chipman, Robert A. The earliest electromagnetic instruments. Bulletin of the United States National Museum. Contributions from the Museum of History and Technology 38, 123-135. Smithsonian Institution, 1964. https://repository.si.edu/bitstream/handle/10088/21310/USNMB-240_38_1964_472.pdf.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.3033.01
label: nonaccession number
content: 2001.3033
objectType: label: Object Name
content: Demonstration Device
label: Other Terms
content: Demonstration Device; Magnetic Devices
physicalDescription: label: Measurements
content: overall: 6 in x 6 in x 5 in; 15.24 cm x 15.24 cm x 12.7 cm