Object Details
- Gambey, Henri Prudence
- Description
- A declinometer measures the horizontal angle between the geographic and magnetic poles of the earth (also known as the declination, or variation, of the magnetic needle). This form was introduced by H. P. Gambey of Paris in the 1830s and remained popular in France throughout the century. This example was purchased in France and probably produced there as well. It consists of a heavy stone base, a bar magnet supported by a thread, and microscopes at either end to read the magnet's position.
- Ref: E. Mascart, Traite; de Magnetism Terrestre (Paris, 1900), p. 189-190.
- Location
- Currently not on view
- ca 1830-1845
- ID Number
- 1982.0668.01
- accession number
- 1982.0668
- catalog number
- 1982.0668.01
- Object Name
- declinometer
- Physical Description
- metal (overall material)
- marble (base material)
- Measurements
- overall: 19 1/4 in; x 48.895 cm
- overall: 2 in x 24 in x 9 3/4 in; 5.08 cm x 60.96 cm x 24.765 cm
- Place Made
- France: Île-de-France, Paris
- See more items in
- Medicine and Science: Physical Sciences
- Measuring & Mapping
- National Museum of American History
- Subject
- Science & Scientific Instruments
- Record ID
- nmah_1029287
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a8-d8e1-704b-e053-15f76fa0b4fa
