Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 15
asily about a knife-edge at E. This is usually a sharpsteel edore resting^ on a steelor an agate plate. The bear-ings at C and D are madewith very little friction, sothat the beam turns veryfreely. A long pointer Pextends downwards fromthe middle of the beam, andits lower end moves over ascale 0.… … Fig. 8.—a simple and convenient balance. Whenin equilibrium the pointer P stands at zero onthe scale 0. The nut n is for adjusting thebalance and the small weights, fractions of agram, are obtained by sliding the rider r alongthe beam which is graduated. The weight IT, ifsubstituted for the pan A,…
Physics
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