A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 352
COINCIDENCES. 321 thread passing around the horizontal pins ab and hi.The diameter of these pins should be exactly the same,and not over 1 cm. Their length should be about 10 cm,The upper pin (aJ) is driven through a fixed support;the lower pin should pass as nearly as possible throughthe centre of… … Fig. 153. Fig. 154. also attached to the cylinder, and in this disc are madetwo V shaped holes (g and /). Opposite the lowerhole (y) may be placed an opening (/c), in a shield,through which instantaneous views of objects be-hind the pendulum may be obtained at regular in-tervals. A small wire loop…
Physics
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