| Benjamin Martin - 1747 - 398 էջ
...call'd MECHANICAL POWERS or MACHINES : They are Six in Number, as follow, viz. The Lever, the Pulley, the Wheel and Axle, the Inclined Plane, the Wedge, and the Screw. They are call'd Mechanical Powers, becaufe they increafe our Power of moving or raifing heavy Bodies,... | |
| James Smith - 1815 - 684 էջ
...called, by way of distinction, the Mechanical Powers. They are six in number, viz. the LEVER, the PULLEY, the WHEEL AND AXLE, the INCLINED PLANE, the WEDGE, and the SCREW. Some authors arc of opinion that we ought only to reckon two simple machines, the lerer and the inclined... | |
| Mrs. Marcet (Jane Haldimand) - 1821 - 366 էջ
...in number, one or more of which enters into the composition of every machine. The lever, the pulley, the wheel and axle, the inclined plane, the wedge, and the screw. In order to understand the power of a machine, there are four things to be considered. 1st. The power... | |
| John Griscom - 1823 - 84 էջ
...hour or an hour, boys may become acquainted with the nature and properties of the lever, the pulley, the wheel and axle, the inclined plane, the wedge and the screw ; and it cannot but surprise and delight them to learn that the multiform operations of machinery,... | |
| Levi Washburn Leonard - 1827 - 398 էջ
...his natural strength could never effect without them. They are six in number, the lever, the pulley, the wheel and axle, the inclined plane, the wedge, and the screw, one or more of which enters into the composition of every machine. In order to understand the power... | |
| New-York Institution for the Instruction of the Deaf and Dumb - 1828 - 518 էջ
...resistances than the power of man could perform. These contrivances are the simple lever and the pulley, the wheel and axle, the inclined plane, the wedge and the screw, and all are much used for the purpose of varying the velocity of the power by those arrangements so... | |
| Levi Washburn Leonard - 1830 - 350 էջ
...his natural strength could never effect without them. They are six in number, the lever, the pulley, the wheel and axle, the inclined plane, the wedge, and the screw, one or more of which enters into the composition of every machine. In order to understand the power... | |
| 1832 - 642 էջ
...number, one or more of which enters into the composition of every machine. The ¡ever, the pulley, the wheel and axle, the inclined plane, the wedge, and the screw. In order to understand the power of a machine, there are four things to be considered. 1st. The power... | |
| New York (State). Legislature. Assembly - 1834 - 944 էջ
...resistances than the power of man could perform. These contrivances are the simple lever and the pulley, the wheel and axle, the inclined plane, the wedge and the screw, and all are much used for the purpose of varying the velocity of the power by those arrangements so... | |
| Ireland commissioners of nat. educ - 1835 - 398 էջ
...LESSON IV. ON THE MECHANIcAL POWERS. There are six mechanical powers, viz : the lever, the pulley, the wheel and axle, the inclined plane, the wedge and the screw. One or more of these enters into the composition of every machine. In order to understand the power... | |
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