Vertical Force Variometer by Watts, 1931

Made:
1931 in England
maker:
E. R. Watts and Son Limited
and
Cambridge Scientific Instrument Company Limited

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Vertical force magnetometer (variometer) and reflecting head by E.R. Watts & Son Ltd, and recording apparatus with mercury thermometer by Cambridge Scientific Instrument Co., 1931.

Details

Category:
Terrestrial Magnetism
Object Number:
1935-540 Pt1
Materials:
aluminium alloy, brass (copper, zinc alloy), cork, glass, mercury, plastic (unidentified), rubber (unidentified), water and wood (possibly)
Measurements:
overall (assembled): 580 mm x 310 mm x 250 mm, 6.65kg
type:
magnetometer (vertical force)
taxonomy:
  • measuring devices
  • measuring devices
credit:
E. R. Watts & Son