“Most often it is the case that people know that something big can be manipulated with it [i. e., the screw], but not how and in what way it is connected to time, and that untold time, and finally such force of machines, wheels, and shafts is necessary as cannot be produced nor be had.”

Jacob Leupold (1724); as cited in: Helmut Müller-Sievers (2012) The Cylinder: Kinematics of the Nineteenth Century. p. 146

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Jacob Leupold 3
German multidisciplinary scientist 1674–1727

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