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Βιβλία Βιβλία 91 - 100 από 187 για These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the....
" These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. "
A Practical Treatise on Arithmetic ...: Combining the Useful Properties of ... - Σελίδα 246
των George Leonard (jr.) - 1841 - 340 σελίδες
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Ohio Educational Monthly, Τόμοι 1-2

1852
...conceptions of the nature of power, and what it is to which we apply that term. For instance, we speak of the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge and the Screw as " Mechanical Powers." And although no one, who stops to think carefully upon...

The Practical Draughtsman's Book of Industrial Design: Forming a Complete ...

Armengaud (aîné, Jacques-Eugène), William Johnson, Charles A. Armengaud, Jules Amouroux - 1853 - 196 σελίδες
...elevate loads, or to evercome resistances. The simple machines are generally considered to be six — the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. A much more scientific and comprehensive arrangement of the elementary machines, is that lately suggested...

A Theoretical and Practical Arithmetic: Designed for Common Schools and ...

Daniel Leach - 1853
...breadth at the beam ? MECHANICAL POWERS. SECTION XLVI. 394. THERE are six mechanical powers, viz., the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. What is the government rule for finding the tonnage of vessels ? How many mechanical powers are there...

The principles of mechanical philosophy applied to industrial mechanics ...

Thomas Turner Tate - 1853 - 342 σελίδες
...the number of times that the weight is greater than the power. There are six mechanical powers, — the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. THE LEVER. 114. A lever is a rigid rod, moveable about a fixed point, called...

The Principles of Dynamics: An Elementary Text-book for Science Students

Richard Wormell - 1876 - 252 σελίδες
...simple machines are called mechanical powers. They are usually considered to be six in number; namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. (i.) A lever is an inflexible rod moveable only about a fixed axis, which is...

The Kinematics of Machinery: Outlines of a Theory of Machines

Franz Reuleaux - 1876 - 622 σελίδες
...on this subject. We may give a few specimens of them : — Poppe, Maschinenkunde (1821), p. 81 : — "The lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw are included under the name simple machines, simple engines (Ruttzeuge) or mechanical...

Dynamics: Or Theoretical Mechanics

James Thomson Bottomley - 1877 - 142 σελίδες
...form excellent examples of the application of the liplcs of statics. The six mechanical powers are.— the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. Of these the wheel and axle is only a modification of the lever, and the wedge...

Elementary Text-book of Physics

Joseph David Everett - 1877 - 314 σελίδες
...applications of the foregoing principles; and we shall begin with the so-called "mechanical powers," namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. 58. Problems relating to the lever are usually most conveniently solved by taking...

The Kinder-garten: Principles of Froebel's System and Their Bearing on the ...

Emily Anne Eliza Shirreff - 1880 - 112 σελίδες
...ILLUSTRATE THE MECHANICAL POWERS. A Box of Working Models, of the Six Simple Mechanical Powers : namely, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw ; with Description, Experiments, and Engravings. (These models are accurately...

Elementary Treatise on Natural Philosophy, Τόμος 1

Augustin Privat-Deschanel - 1880
...applications of the foregoing principles; and we shall begin with the so-called "mechanical powers," namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. 56. Lever. — Problems relating to the lever are usually most conveniently solved...




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