Zeleny, Anthony, 1870-1947, Erikson, Henry A. (Henry Anton), b. 1869, joint author · New York [etc.] McGraw-Hill book company · leaf 26
e scale and micro-meter at the former posi-tion gives the zero reading. The spherometer is thenplaced on the sphericalsurface. The micrometerhead is again turneduntil the four points touchthe surface. The scaleand micrometer are read,and the distance a ofFig. 6, through which thescrew moved from… … Fig. 6. 8 MECHANICS paper. By aid of dividers and scale, the average dis-tance DB between the legs and the point of the screwis determined The radius of curvature is calculated from the dis-tances a and DB. Suggestion.—The vertical scale usually has the zeromark at the center. This is liable to…
Physics
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