Austin, Louis W. (Louis Winslow), 1867-1932, Thwing, Charles B. (Charles Burton), 1860-1946, joint author · Boston, Allyn and Bacon · leaf 24
is sometimes added, especially ifthe barometer tube is of small diameter, for capillary depression. Theamount of this for different diameters is given in Table 13. THE MICROMETER. A still more exact instrument than the vernier formeasuring small dimensions is the micrometer, the prin-cipal forms of… … Fig. 4. other end containing an adjustable stop, S. The head ofthe screw is divided into equal parts for reading fractionsof a turn. The longitudinal scale on the frame is dividedto mms. If the distance between the threads of the screwbe ^ mm., the screw will advance 1 mm. for every twoturns. If…
Physics
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