...natural strength without them. The simple machines, called Mechanical powers, are six in number ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ; and of these all the most compound engines consist. The general principle is,...

...at Alexandria in the 4th century. Its improvers were Victa, Descartes, Newton, Euler, and La Grange. The mechanical powers may be reduced to three, but...continued combination the power is twice the number of pullies, less 1. In levers, the power is reciprocally as the lengths on each side the fulcrum or centre...

...at Alexandria in the 4th century. Its improvers were Vieta, Descartes, Newton, Euler, and La Grange. The mechanical powers may be reduced to three, but...and axle, the pulley, the inclined plane, the screw, ana the wedge. In a single moveable pulley the power gained is doubled. In a continued combination...

...power. The body which receives motion from another is called the weight. The mechanical powers are six, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Screw, and the Wedge. THE LEVER. about a fixed point, called its I /\ The lever is a bar, movable fulcrum or prop. It is...

...supposed to - be perfectly rigid. The mechanical powers, sometimes described as six in number, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw, are reducible to two only, viz. the lever and the inclined plane, in each of...

...to facilitate the moving of weights or the overcoming of resistance. They are six in number; viz., the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In mechanical powers and in machinery, the thing to be moved, or the resistance...

...are supposed to be perfectly rigid. The mechanical powers, sometimes described as six in number, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw, are reducible to two only, viz. the lever and the inclined plane, in each of...

...of a few bars of thin iron ?" And when we consider that all the mechanical powers may be reduced to the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw, how astonishing are the forces exerted, and the effects produced, by their various...

...breadth at the beam ? MECHANICAL POWERS. SECTION XLVI. 394. THERE are six mechanical powers, viz., the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. 395. The lever is a bar, supposed to be inflexible, movable upon a fulcrum. 396. To find what weight...

...That branch denominated Statics will be the subject of the present inquiry. The mechanical powers are six: the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The lever is the most powerful, because there is no limit to the difference of...