ABSTRACT

The Aristotelian origin of many of the ideas in the Mechanica is proved by parallels found in Aristotle's genuine writings. Cappelle refers to a genuine work of Aristotle. Cappelle observes that 'physici' differ as to whether the particular 'mechanical power' to which the wedge reduces is the lever or the inclined plane. The commonest problems of a mechanical kind are those connected with the use of the lever. It seems strange that one should be able to move a great weight by applying only a small force; yet this is possible with the help of a lever, although the lever itself adds a little more weight. The principle of the lever is made to depend on the circle. The moving weight or force will always move the weight to be moved the more easily the farther it is away from the fulcrum.