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Catalog Data

Maker:
Edelmann, Max Thomas  Search this
Physical Description:
metal (overall material)
Measurements:
overall: 42 in; 106.68 cm
Object Name:
variometer
Place Made:
Germany: Bavaria, Munich
Date made:
ca 1906
Description:
This instrument measures slight changes in the horizontal intensity of the earth's magnetic field. It is based on a design introduced by Hermann Ebert, a professor of physics in Munich, and Ebert tested it before it left Edelmann's shop. This example is marked "Physikalisch-mech. Institut. Von PROF. DR. TH. EDELMANN MÜNCHEN." The Department of Terrestrial Magnetism of the Carnegie Institution of Washington bought it for $94.69 in 1906.
Ref: M. Th. Edelmann, "On the Construction of Earth-Magnetic Instruments," <i>Weather Bureau Bulletin</i> 11 (1893): 511-539.
M. Th. Edelmann, <i>Catalogue</i> 26, item 300.
Location:
Currently not on view
Subject:
Science & Scientific Instruments  Search this
Science & Scientific Instruments  Search this
Credit Line:
Carnegie Institution of Washington
ID Number:
1983.0039.06
Accession number:
1983.0039
Catalog number:
1983.0039.06
See more items in:
Medicine and Science: Physical Sciences
Science & Mathematics
Measuring & Mapping
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a8-ca9a-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_1029379