Jones, H. Spencer (Harold Spencer), 1890- · London E. Arnold & co. · leaf 34
orsion BalanceMethod of Determiningthe Mass of the Earth. THE EARTH 21 surrounding the apparatus serves to prevent disturbancesarising from air currents. An improved form of this experiment was performed byBoys in 1895, the apparatus being made more deKcate andreduced in size. The attracting… … Fia. 7.—Cavendishs Apparatus. hh, torsion rod hung by wire Ig; x, x, attracted balls hung from its ends ; W, W, attracting mas&es. masses were placed at the corresponding levels. The attractedmasses x, x were of gold, 5 mm. in diameter, weighing about1-3 gms., and were suspended by quartz…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
