magnetometer
Datecirca 1908
Inventory Number0162a,b,c
ClassificationMagnetometer
Subject
Maker
American
?
User
Department of Physics, Harvard University
founded 1884
Cultural Region
Place of Use
Dimensions51 × 22.5 × 24.5 cm (20 1/16 × 8 7/8 × 9 5/8 in.)
Material
DescriptionSuspended U-shaped magnet with mirror within a heavy cylinder of brass. Cylindrical brass case with viewing mirror near bottom. Probably had a horizontal scale attached at the level of the magnet.
Horizontal scale missing.
Horizontal scale missing.
Signedunsigned
Curatorial RemarksIdentical to 0161a-c.
FunctionFor the experimental determination of M/H (magnetic fields) by the method of Gauss. A meter stick should be attached to two of the (4) support rods and a bar magnet provided (65mm long , 6 mm square).
The angle of declination would be determined by watching the reflection of the scale on the mirror with a scope.
The angle of declination would be determined by watching the reflection of the scale on the mirror with a scope.
ProvenanceFrom Harvard University physics department.
Emile Gallemaerts
Date: circa 1911
Accessories: rule; loose screw (see curatorial remarks)
Object number: DW0398
James White
Date: 1884
Object number: 0430a,b
Fr. J. Berg
Date: circa 1900
Accessories: not complete (missing several acessories) has spare needle, leather strap
Object number: 5132
Leeds & Northrup Company
Date: circa 1910
Accessories: detachable brass support for telescope and paper scale
Object number: 0268
See also/See also
