A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 114
age number of turns andthousandths of a turn actually made by the screw.Dividing the average diameter of the balls (from thehydrostatic method) by the corresponding number ofturns of the screw, we have finally the distancethrough which the micrometer screw advances ineach revolution. This is called… … 1[51.] ZERO READING OF A SPHEEOMETER. 83 EXPERIMENT XX. TESTING A SPHBROMETER. IT 51. Determination of the Zero Reading of a Spher-ometer. A spherometer (Fig. 38) is essentially a mi-crometer Csee IT 50, II.) supportedby three legs (c?,/, g^. The verti-cal screw (ce) has a head (5) di-vided into a…
Physics
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