Zeleny, Anthony, 1870-1947, Erikson, Henry A. (Henry Anton), b. 1869, joint author · New York [etc.] McGraw-Hill book company · leaf 25
EANS OF A SPHE-ROMETER Apparatus.—A spherometer; a piece of plate glass; a sheet of paper; dividers;metric scale; a sphericalsurface. The spherometer consistsof a screw with a microm-eter head. This screwturns in a nut which issupported by three legs atequal distances from eachother. The screw and… … Fig. 5. MECHANICS Determine the following quantities: 1. Length of a division on the vertical scale. 2. Pitch of the screw. 3. Value of a division on the micrometer head.Method and Manipulation.—The gpherometer is placed on the plate glass, and the micrometer head isturned until the screw just…
Physics
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