Philosophical instructor, or, Webster's elements of natural philosophy : subdivided into principles and illustrations ; intended for academies, medical schools, and the popular class-room (1824)
Eaton, Amos, 1776-1842, Webster, John, fl. 1804-1824 · Albany : Printed by Websters and Skinners ... · leaf 51
48 THE PULLEY. … When the sheaves are not fasteued together in thelower block, but act upon each other, and the weightis fastened to the lowest, the power will be greatlyincreased. If one end of the cords which pass through thefour pullies, be fastened to abeam, and the other to the blockof the adjoining pulley,…
Physics
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