A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 104
THE HAND-TKUCK. … A COMPOUND LEVEE. Thus, in Fig. 96, which represents a compound lever formed of three sim-ple ones, let the long arm of each lever be three times the length of its shortarm; then 1 pound at P will balance 27 pounds at W, because1 pound X3X3X3 = 27 pounds X 1 X 1 X 1. 214. Levees of the Second…
Physics
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