Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 80
sh the friction. A needle or pointeris fixed to the beam, and oscillates with it in front of a graduated arc :when the beam is perfectly horizontal the needle points to the zero of thegraduated arc (fig. 57). Since two equal forces in a lever of the first kind cannot be in equi-librium unless their… … edges, and rest on similar edges at the ends of the beam. In this manner thescale-pans are in effect supported on mere points, which remain unmovedduring the oscillations of the beam. This mode of suspension is representedin fig. 53. 74. Conditions to be satisfied by a balance.—A good balance ought…
Physics
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