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 117
112 WELLSS NATURAL PHILOSOPHY. Fig. 97. … •where the arm of the crank is horizontal, the powerfrom the rod acts with tlie greatest advantage, anat the extremity of a lever. But when the rodwhich communicates motion stands perpendicularwith the arm of the crank, as in No. 2, which isthe case twice during every revolution, the power,however…
Physics · Science · Technology
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