Revolving Magnet
date: label: date made
content: around 1900
name: label: maker
content: Ziegler Electric Company
notes: label: Description
content: The American scientist, Charles Grafton Page, devised this type of revolving magnet in the late 1830s. Daniel Davis, Jr., in Boston, described it as a magneto-electric machine in its most simple form. Later examples were to be had from other instrument makers.This example was used at Vassar College. The “ZIEGLER ELEC / MFRS. / BOSTON” inscription refers to a firm that began in business as such in 1894.
label: Description
content: Ref: “Page’s Revolving Magnet, as a Magneto-Electric Machine” in Daniel Davis, <i>Manual of Magnetism</i> (Boston, 1842), pp. 171-172.
label: Description
content: Benjamin Pike, Jr., <i>Pike’s Illustrated Descriptive Catalogue of Optical, Mathematical, and Philosophical Instruments</i> (New York, 1856), vol. 2, pp. 30-31.
label: Description
content: Robert C. Post, <i>Physics, Patents & Politics: A Biography of Charles Grafton Page</i> (New York, 1976).
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Boston
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1980.0318.06
label: accession number
content: 1980.0318
label: catalog number
content: 1980.0318.06
objectType: label: Object Name
content: revolving magnet
physicalDescription: label: Measurements
content: overall: 10 3/4 in x 4 1/4 in x 5 in; 27.305 cm x 10.795 cm x 12.7 cm