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 127
the fourth 27 ; and let each pinion have 9 teeth. Then (leaving frictionout of account) a power of 2 pounds will balance a weight of 72 pounds. For 2 X 18 X 18 X 27 X 27 = 472392 9X9X9X9 = 6561 472392 divided by 6561 = 72 279. Kinds of Toothed Wheels. — There are threekinds of toothed wheels ;… … which one wheel may be made to move another ? 277. What are Pinions ? Whatare the teeth of pinions called ? 278. What is Gearing? When are wheels said to bein gear t When are they said to be out of gear ? What does Fig. 129 represent ?With such a train, how do you find how great a weight will be…
Physics
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