Poynting, J. H. (John Henry), 1852-1914, Shakespear, Gilbert Arden, ed, Barlow, Guy, joint ed · Cambridge, University Press · leaf 91
ram-framework and the bearing of the rotating rod withinthe case are both supported, independently of the ease, from the ceihng. Atfirst they were supported respectively on the central pillar of the balanceand on the case; but when the increase of optical sensitiveness enabled meto detect small… … Kg. 6. Lifting-rods to raise or lower riders (half size). rod transmitted great and continual vibration. The rod and the frameworkwith the Ufting-levers were, therefore, supported by iron rods coming downfrom the ceiHng through holes in the top of the case, large pieces of cardboardstretching from…
Poynting, J. H. (John Henry), 1852-1914 · Physics
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