...instruments or elements of which every machine, however complicated, must l>e constructed : they aro the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. MELTING POINT. That point of the thermometer which indicates the heat at which...

...Former Annuals, contains, by Tables and Easy Rules, free from Algebraic Formula:, the Calculations of the Lever, the Wheel and Axle, the Pulley, the inclined Plane, the Wedge and the Screw, the Gravitating Property of Bodies, the Centres of Gravity, Gyration, and Percussion,...

...than, without their aid, could be effected by mere natural strength ; they are seven in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, the Screw, and the Funicular Machine. The Lever has already been described. In the Wheel and...

...are certain instruments employed for supporting weights, and giving motion to bodies, are six, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw : all the latter, however, are but different modifications of the lever. * BALBEC,...

...are certain instruments employed for supporting weights, and giving motion to bodies, are six, viz. the lever, the -wheel and axle, the pulley, the inclined plane, the wedge, and the screw : all the latter, however, are but different modifications of the lever. * BALBEC,...

...applications to increase force and overcome resistance. They are usually accounted six in number, viz. The Lever — The Wheel and Axle— The Pulley— The Inclined Plane — The Wedge — and the Screw. LEVER. To make the principle easily understood, we must suppose the lever...

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

...the other. 2. The simple machines, or those of which all others are constructed, are usually reckoned six: the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. To these the funicular machine is sometimes added. THE LEVER. 4. A lever is an...

...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 * Lord Brougham. wedge and the screw, how astonishing are the forces exerted, and the effects produced,...

...help of the machine. The simple machines, usually called mechanic powers, are six in number, namely, the Lever, the "Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. There are three kinds of levers, caused by the different situations of the weights,...