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 108
casesthe power is capable of acting in only one particular di-rection. Any arrangement of machinery, therefore, which^ill enable us to render power more available, by apply-ing it in the most advantageous direction, is as convenientand valuable as one which enables a small power to balance or… … accomplish directl}, since the horse exerts hisstrength mamly, and to the best advantage, indrawmg horizontally; but by changing the di-rection of the power of the horse, by an ar-rangement of fixed pulleys, as is representedin Fig. 81, the weight is lifted most readily,and the horse exerts his…
Physics · Science · Technology
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