Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 73
ription of the Balance. But the method of equal-arm balance is the one mostcommonly used for the determination of equal masses.Fig. 42 shows a common form of the balance,1 whichconsists of a metal beam A B, supported at the centre onthe knife-edge C, usually a three-cornered steel barpassing… … Fig. 42. knife-edges placed at E and F near the ends of thebeam and at equal distances from its centre. A pointer,p, which moves over a graduated scale, is attached to thecentre of the beam, as shown in the figure. Whenunloaded, or when the pans are equally weighted, thebalance should rest in…
Physics
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