"Mechanical subjects are treated in the writings of Aristotle. The great peripatetic had grasped the notion of the parallelogram of forces for the special case of the rectangle. He attempted the theory of the lever, stating that a force at a greater distance from the fulcrum moves a weight more easily because it describes a greater circle. He resolved the motion of a weight at the end of the lever into tangential and normal components. The tangential motion he calls according to nature; the normal motion contrary to nature. ...the expression contrary to nature applied to a natural phenomenon is inappropriate and confusing."
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A History of Physics in its Elementary Branches
A History of Physics in its Elementary Branches including the Evolution of Physical Laboratories by Florian Cajori was first published in 1899. It was written with the hope to improve science teaching, which Cajori felt at the time, was not sutticiently historical.
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