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Βιβλία Βιβλία 81 - 90 από 186 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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A THEORETICAL AND PRACTICAL ARITHMETIC

DANIEL LEACH, WILLIAM D. SWAN - 1851
...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. 395. The lever is a bar, supposed to be inflexible, movable upon a fulcrum. 396. To find what weight...

A Compendium of Natural Philosophy: Adapted to the Use of the General Reader ...

Denison Olmsted - 1851 - 456 σελίδες
...friction? What ftre the methods of diminishing friction ? Specify the comparative amount of friction in the lever, the wheel and axle, the pulley, the inclined plane. the friction evidently exceeds the resistance ; otherwise they would not retain their position. 171. Friction...

Young Scientist: A Practical Journal for Amateurs, Τόμος 1

1851
...simple arrangements of which all machinery is compounded. Of these, six are generally distinguished: the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. All these, however, may strictly be reduced to two — the lever and the inclined...

Science simplified and philosophy natural and experimental made easy: Second ...

1851 - 128 σελίδες
...branch denominated Statics will be the subject of the present inquiry. The mechanical powers are six: the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The lever is the most powerful, because there is no limit to the difference of...

Principles and Practice of Statics and Dynamics: Embracing a Clear ...

Thomas Baker - 1851 - 148 σελίδες
...change the direction of any force. The mechanical powers are usually considered six in number ; — the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. The first three, when in a state of equilibrium, may be reduced to the lever...

Principles and Practice of Statics and Dynamics: Embracing a Clear ...

Thomas Baker - 1851 - 148 σελίδες
...change the direction of any force. The mechanical powers are usually considered six in number ; — the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. The first three, when in a state of equilibrium, may be reduced to the lever...

Iconographic Encyclopaedia of Science, Literature, and Art, Τόμος 1

Johann Georg Heck - 1851
...simple arrangements of which all machinery is compounded. Of these, six are generally distinguished : the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. All these, however, may strictly be reduced to two — the lever and the inclined...

Village science; or, The laws of nature explained, by the author of 'Peeps ...

E W. P - 1851
...mechanical powers now, mamma ?" " Yes, I believe you may refer all sorts of mechanical contrivances to the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw, either separately or combined." "I will notice, mamma, and then whether I am...

The principles and practice of statics and dynamics: embracing a clear ...

Thomas Baker - 1851 - 148 σελίδες
...change the direction of any force. The mechanical powers are usually considered six in number ; — the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. The first three, when in a state of equilibrium, may be reduced to the lever...

Norris's Hand-book for Locomotive Engineers and Machinists

Septimus Norris - 1852 - 302 σελίδες
...raise, through a less space, aweight heavier than itselfPower is gained at the expense of space, by the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screwLEVER Case 1- — When the fulcrum of the lever is between the power and the weightRULE...




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