Universal Magnetometer with Earth Inductor
date: label: Date made
content: 1914
name: label: maker
content: Carnegie Institution of Washington. Department of Terrestrial Magnetism
notes: label: Description
content: This instrument is marked "DEPARTMENT OF TERRESTRIAL MAGNETISM Carnegie Institution of Washington E.I. - M N<sup>o</sup> 26." It was designed and produced by the Department of Terrestrial Magnetism of the Carnegie Institution of Washington. Unlike the Carnegie's original universal magnetometer, this one is equipped with an earth inductor to determine dip. It was completed in 1914, compared with standard magnetic instruments at the Kew and Greenwich observatories in England, and at the U.S. Coast and Geodetic Survey observatory at Cheltenham, Md., and used in many locations around the world.
label: Description
content: Ref: J. A. Fleming and J. A. Widner, "Description of the C.I.W. Combined Magnetometer and Earth Inductor," <i>Terrestrial Magnetism</i> 18 (1913): 105-110.
label: Description
content: Carnegie Institution of Washington. Department of Terrestrial Magnetism. <i>Land Magnetic Observations, 1911-1913</i> (Washington, D.C., 1915), pp. 9-12.
label: Location
content: Currently not on view (Tripod at Fullerton)
label: Location
content: Currently not on view
place: label: Place Made
content: United States: District of Columbia, Washington
topic: label: Subject
content: Science & Scientific Instruments
label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Science & Mathematics
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Department of Commerce, Coast & Geodetic Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.320627
label: accession number
content: 2003.0312
label: catalog number
content: 320627
objectType: label: Object Name
content: universal magnetometer with earth inductor
physicalDescription: label: Physical Description
content: metal (overall material)
label: Measurements
content: overall (instrument case): 7 1/4 in x 21 1/4 in x 15 3/4 in; 18.415 cm x 53.975 cm x 40.005 cm
label: Measurements
content: overall: 7 in x 15 1/2 in x 21 1/4 in; 17.78 cm x 39.37 cm x 53.975 cm