Object Details
- Dover
- Description
- This is a Kew pattern unifilar magnetometer that is marked "Dover, Charlton Kent No. 145" and that belonged to the Survey Branch of the U.S. Navy Hydrographic Office. While the "Dover, Charlton Kent" inscription was used between 1859 and 1920, the serial number suggests a date of around 1900. The U.S. Coast and Geodetic Survey repaired, cleaned, adjusted, and calibrated this instrument around 1950, and transferred it to the Smithsonian in 1959.
Ref: J. E. H. Gordon, A Physical Treatise on Electricity and Magnetism (London, 1880), vol. I, pp. 166-177.
- Location
- Currently not on view
- Credit Line
- U.S. Department of Commerce, Coast & Geodetic Survey
- ID Number
- PH.316506
- accession number
- 225703
- catalog number
- 316506
- Object Name
- magnetometer
- Physical Description
- wood (overall material)
- metal (overall material)
- Measurements
- overall: 21 1/8 in x 11 1/4 in x 11 3/4 in; 53.721 cm x 28.575 cm x 29.845 cm
- overall; tube: 50 in x 1 1/4 in; 127 cm x 3.175 cm
- overall; box: 11 1/2 in x 21 1/4 in x 11 7/8 in; 29.21 cm x 53.975 cm x 30.1625 cm
- Place Made
- United Kingdom: England, London, Charlton
- See more items in
- Medicine and Science: Physical Sciences
- Science & Mathematics
- Measuring & Mapping
- National Museum of American History
- Subject
- Science & Scientific Instruments
- Science & Scientific Instruments
- Record ID
- nmah_1029277
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a8-f9b9-704b-e053-15f76fa0b4fa
