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" The lever, the pulley, the wheel, and axle, the inclined plane, the wedge, and the screw. "
Documents of the Assembly of the State of New York - Страница 58
написао/ла New York (State). Legislature. Assembly - 1834
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Philosophia Britannica: Or, A New & Comprehensive System of the Newtonian ...

Benjamin Martin - 1747 - 398 страница
...commonly 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,...
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The economy of nature explained and illustrated on the principles of modern ...

George Gregory - 1798 - 630 страница
...machines or powers, of which all the more complex engines are conftrufted ; and thefe are the lever, the pulley , the wheel and axle, the inclined plane, the wedge, and the Jcrew. It has been remarked by fome authors, that thefe fix machines may in fact be refolved into two,...
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The Panorama of Science and Art: Embracing the Sciences of ..., Том 1

James Smith - 1815 - 684 страница
...consist, are 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...
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Conversations on Natural Philosophy: In which the Elements of that Science ...

Mrs. Marcet (Jane Haldimand) - 1821 - 350 страница
...they are six 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...
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A Discourse, on the Importance of Character and Education, in the United ...

John Griscom - 1823 - 84 страница
...during half an 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, however...
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Conversations on Natural Philosophy: In which the Elements of that Science ...

Mrs. Marcet (Jane Haldimand) - 1826 - 286 страница
...WEIGHT. MRS. B. WE may now proceed to examine the mechanical powers ; they are six in number : The lever, the pulley, the wheel and axle, the inclined plane, the wedge and the serez«;\one or more of which enters into the composition of every machine. A mechanical power is an...
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The Literary and Scientific Class Book: Embracing the Leading Facts and ...

Levi Washburn Leonard - 1827 - 398 страница
...resistances as 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...
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Annual Report of the Directors of the New York ..., Том 9,Делови 1828-1835

New-York Institution for the Instruction of the Deaf and Dumb - 1828 - 518 страница
...are indebted to England ; its utility will point the inventor out as a benefactor of the human race. By the same. THE MECHANICAL POWERS. These powers are...accomplish several kinds of labor. The names of the thiee to which the six mechanical powers are reduced, are, first, the lever, including the lever and...
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The Literary and Scientific Class Book: Embracing the Leading Facts and ...

Levi Washburn Leonard - 1830 - 350 страница
...resistances as 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...
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Natural Philosophy: With an Explanation of Scientific Terms, and an Index, Том 2

1832 - 640 страница
...They are six 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...
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