Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 48
Fig. 24. Fijr. 25. The art of balancing, in which circus-riders and rope-dancers areso expert, consists in skillfully keeping the centre of gravity sup-ported. If a body has three supports not in a straight line, it willbe in equilibrium when the centre of gravity lies on a ver-tical drawn through…
Physics
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