Earth Inductor
name: label: maker
content: Queen and Company
notes: label: Description
content: Michael Faraday found that the magnetic force of the earth could induce electrical currents in metallic bodies in motion. Building on this idea, Charles Delezenne in France introduced an earth inductor of this sort in 1844. The inscription on the base of this example reads "JAS. W. QUEEN & CO. MAKERS PHILA."
label: Description
content: Ref: James W. Queen & Co., <i>Priced and Illustrated Catalogue of Physical Instruments</i> (Philadelphia, 1888), p. 106.
label: Description
content: Charles Delezenne, "Notions élémentaire sur les phénoménes d'induction," <i>Mémoires de la Societé; des Sciences de Lille</i> 23 (1844): 1-132, on 109-120.
label: Description
content: Adolphe Ganot, <i>Elementary Treatise on Physics</i> (New York, 1875), pp. 773-774.
label: Location
content: Currently not on view
place: label: place made
content: United States: Pennsylvania, Philadelphia
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Franklin College
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.337246
label: catalog number
content: 337246
label: accession number
content: 1979.1018
objectType: label: Object Name
content: earth inductor
physicalDescription: label: Measurements
content: overall: 17 3/4 in x 17 5/8 in x 9 15/16 in; 45.085 cm x 44.7675 cm x 25.24125 cm