Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 56
CENTER OF GRAVITY. 51 … Fig. 23. Let A represent a coach standing on a level; B, a cart loaded with stoneson a slope; C, a wagon loaded with hay on a slope ; a a a the centers ofgravity; a b, line of direction; c d, base. Here it is obvious that the hay-wagon must upset, because the line of di-rection falls without the…
Physics · Science · Technology
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