 | Charles Hutton - 1811 - 494 σελίδες
...body being freely suspended, it will rest in any position. OP THE LEVER. 162. A LEVER is any mflexible rod, bar, or beam, which serves to raise weights,...are three kinds of levers. 163. A Lever of the First kind has the prop c between the weight w and the power P. And of this kind are balances, scales, crows,... | |
 | Charles Hutton - 1811 - 442 σελίδες
...certain point, on which a body being freely suspended, it will rest in any position. OF THE LEVER. 162. A LEVER is any inflexible rod, bar, or beam, which...fulcrum or prop, which is the centre of motion. The levef is supposed to be void of gravity or weight, to render tht demonstrations easier and simpler.... | |
 | Jeremiah Joyce - 1815 - 680 σελίδες
...is generally called the first mechanical power. The Lever, is any inflexible bar of wood, iron, &c. which serves to raise weights, while it is supported at a point by a prop or fulcrum, on which, as the centre of motion, all the other parts turn. AB (Plate in. Fig. 17.)... | |
 | Jeremiah Joyce - 1815 - 268 σελίδες
...is generally called the first mechanical power. The lever is an inflexible bar of wood, iron, &c., which serves to raise weights, while it is supported at a point by a prop or fulcrum, on which, as the centre of motion, all the other parts turn. AB (Plate Iir, Fig. 17)... | |
 | Charles Hutton - 1822 - 680 σελίδες
...point, on which a bocljr being freely suspended, it will rest in any position. "'Vl J OF THE LEVER. 162. A LEVER is any inflexible rod, bar, or beam^ which...demonstrations easier and simpler. There are three kinds ^ levers* 165. A Lever of the Third kind has the power between the weight and the prop. Such as tongs,... | |
 | Levi Washburn Leonard - 1827 - 398 σελίδες
...and the momentum of each is equal. The lever is any inflexible bar of iron, wood, or other material, which serves to raise weights, while it is supported at a point by a prop or fulcrum, on which, as the centre of motion, all the other parts turn. There are three different... | |
 | E. S. Norman Campbell - 1830 - 304 σελίδες
...the apparent level, except the point of contact, is higher than the true level. LEVER. In Mechanics, is any inflexible rod, bar, or beam which serves to raise weights, while it is supported at a point called the fulcrum or prop, which is the centre of motion. There are four kinds of levers. The first,... | |
 | Levi Washburn Leonard - 1830 - 350 σελίδες
...and the momentum of each is equal. The lever is any inflexible bar of iron, wood, or other material, which serves to raise weights, while it is supported at a point by a prop or fulcrum, on which, as the centre of motion, all the other parts turn. There are three different... | |
 | Frederick Emerson - 1834 - 300 σελίδες
...signify the body to be moved and the body that moves it. THE LEVER. A lever is any inflexible bar, which serves to raise weights, while it is supported at a point, which is the centre of its motion, by a fulcrum or prop. There are several kinds of lever used in mechanics;... | |
 | Jeremiah Joyce - 1838 - 398 σελίδες
...is generally called the first mechanical power. The lecer is any inflexihle har of wood, iron, &c. which serves to raise weights, while it is supported at a point hy a prop or fulcrum, on which, as the centre of motion, all the other parts turn, ah will represent... | |
| |
A LEVER is any inflexible rod, bar, or beam, which, serves to raise weights, while it is supported at a point by a fulcrum or prop, which is the centre of motion. The lever is supposed to be void of gravity or weight, to render the demonstrations easier... 
