Zeleny, Anthony, 1870-1947, Erikson, Henry A. (Henry Anton), b. 1869, joint author · New York [etc.] McGraw-Hill book company · leaf 28
a scale on whichthe distance between the central knife-edge and theedge supporting the scale pan is usually divided intoten major parts. Smaller divisions, if present, are usu-ally not used. Over this scale hangs a rider whichcan be placed at any point on the scale. This riderweighs ten milligrams… … Fig. 7. denominations ranging from the largest down to onegram. For fractions of a gram down to .01 gram or tenmilligrams, platinum or aluminum weights are used. 10 MECHANICS Less than ten milligrams is obtained by means of therider. Method and Manipulation.—Release the beam care-fully, and if it…
Physics
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