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" Powers, are certain simple instruments, commonly employed for raising greater weights, or overcoming greater resistances, than could be effected by the natural strength without them. These are usually accounted six in number, viz. the Lever, the Wheel... "
Scientific Dialogues: Intended for the Instruction and Entertainment of ... - עמוד 75
מאת Jeremiah Joyce - 1829
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A Plain and Familiar Introduction to the Newtonian Philosophy

Benjamin Martin - 1754 - 200 דפים
...Gravity in the Syjlem of the Heavenly Bodies, the .Principles of Mechanics explained i of the Several Mechanical Powers ; -the Lever, the Wheel, and Axle,...Pulley, the inclined "Plane, 'the Wedge, and the Screw ; the ftrongeft Arch to build upont the D.oBrine of Wheel Carriages, £?V. 137 A Plain and Familiar...
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A Plain and Easy Introduction to the Newtonian Experimental Philosophy ...

Benjamin Martin - 1765 - 202 דפים
...Gravity in the Syjtem of the Heavenly Bodies ; the Principles of Mechanics explained ; of the federal Mechanical Powers* the Lever, the Wheel and Axle,...Pulley, the inclined Plane, the Wedge, and the Screw ; the ftrongeft Arch to build upon -, ibe Doftrine of Wheel Carriages, &V, 137 I. . A Plain and Familiar...
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Elements of General Knowledge: Introductory to Useful Books in the ..., כרך 2

Henry Kett - 1805 - 340 דפים
...; and by their combination, all machines, however complicated, are constructed. Their names are—. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. However small the strength of man, considered in itself, may appear, his ingenuity has supplied him...
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A Course of Mathematics in Two Volumes for the Use of Academies as Well as ...

Charles Hutton - 1807 - 464 דפים
...eifected by the natural strength without them. These are usually accounted counted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw, 158. Mechanics, is the science of forces, and the effects they produce, when applied to machines, in...
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An Academy for Grown Horsemen; Containing the Completest Instructions for ...

Henry William Bunbury - 1808 - 192 דפים
...riding, of the principles of mixed mathematics. Consider, Mr. Gambado, the six mechanical powers! I he lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw; and reflect with what advantage all these may be applied to the uses of Horsemanship. By means of a...
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An Introduction to the Theory and Practice of Mechanics: In Five Books ...

William Marrat - 1810 - 512 דפים
...because, of these six, all the more compounded machines arc composed : — the mechanic powers are the LEVER, the WHEEL AND AXLE, the PULLEY, the INCLINED PLANE, the WEDGE, and the SGEEW. 125. WEIGHT and POWER, when opposed to each other, signify the body to be moved, and the body...
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A Course of Mathematics: In Three Volumes : Composed for the Use of the ...

Charles Hutton - 1811 - 494 דפים
...effected by the natural strength without them. These are usually accounted six in number, number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. 158. Mechanics, is the science of forces, and the effects they produce, when applied to machines, in...
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English 18th Century Dances, כרך 1

1812 - 356 דפים
...velocity is greater. The mechanical powers which are used in aid of the wants and weakness of man, are, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. THE LEVER Is the first and simplest of the mechanical powers. It is a straight inflexible bar, supposed...
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Elements of General Knowledge: Introductory to Useful Books in the Principal ...

Henry Kett - 1812 - 500 דפים
...mechanical'powers; and by their combination, all machines, however complicated, are constructed. Their names are — the lever, the -wheel and axle, the pulley, the inclined plane, the "wedge, and the screwHowever small the strength of man, considered in itself, may appear, his ingenuity has supplied...
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A Short System of Polite Learning: Being an Epitome of the Arts and Sciences ...

Daniel Jaudon - 1814 - 234 דפים
...of the machine applied to the weight or resistance. Q. How many mechanic powers are there ? A. Six? the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. Q. Please to describe each of them î A. The lerer is an inflexible bar, turning on я supportin»...
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