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 81
main-tain its upright position, and by moving theball may be made to rock up and down. 165. Effect of Rotary Mo-tion.—Rotary Motion, that is, mo-tion round an axis, may keep a body from falling, evenwhen its line of direction falls outside of its base. Thus, ifa boy tries to balance his top on its… … ROCKING-HORSE. scribe the tower of Pisa, and the materials of which it is built. 164. How is the sta-bility of a body further increased ? Show how a needle may be balanced on its pointby applying this principle. Describe the Eocking Horse, and explain the principleinvolved. 165. What is meant by…
Physics
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