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 80
ccount in building leaning towers. Thetower of Pisa, which is the most remarkable of these structures, with a heightof 150 feet, leans to such a degree that its top overhangs its base more than32 feet; yet it has stood firm for centuries. In this case, the centre of grav-ity has been brought lower… … hardest to overturn ? Why ? Illustrate this point with Figs. 66 and 67. Give somefamiliar applications of this principle. 163. Why do those who pack goods in wagonsI nee the heaviest lowest9 In what has this principle heen turned to account? De- 76 MECHANICS.
Physics
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