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 95
s enables himto hoist the load by pulling down upon a rope, and when pulling down hisweight aids his strength. 3. Machinery enables us touse other motive powers besidesour own strength. A horse without machinery can not lifta weight; but he does it readily with theaid of the simple apparatus shown… … tion ? Show that perpetual motion is impossible. 198. If no additional power is gen-erated by machinery, why is it used ? What is the first advantage of using machine-ry? Give an example. If, with machinery, 10 men can do the work of 1,000, howlong comparatively will it take them ? In some pieces…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
