Original torsion balance, designed by Charles Vernon Boys, 1889. Fitted with quartz fibre suspension used to make gravitational measurements of the density of the earth.
- Object Number:
- brass (copper, zinc alloy), glass, lead, quartz, rubber (unidentified), sealing wax, textile, velvet and wood (unidentified)
box: 45 mm x 550 mm x 40 mm, ,
instrument: 610 mm x x , 175 mm,
- Boys, Sir Charles Vernon
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