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Βιβλία Βιβλία 61 - 70 από 183 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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Outlines of Natural Philosophy: For the Use of Schools and Private Learners

C. List - 1846 - 162 σελίδες
...the elements of which the compound are composed. They appear in six different forms, which are called the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. These are called the Mechanical Powers. We should be careful not to adopt the...

A Technological Dictionary: Explaining the Terms of the Arts, Sciences ...

W. M. Buchanan - 1846 - 755 σελίδες
...constitutes the science of mechanics. The mechanical powers are usually divided into six classes ; the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ; but all these are reducible to two, the lever and the inclined plane Some, however,...

Higher Arithmetic: Or, The Science and Application of Numbers; Combining the ...

James Bates Thomson - 1847 - 422 σελίδες
...breadth 35 ft., and the depth 25 ft. ? MECHANICAL POWERS. 648. The Mecfianical powers are six, viz: the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. 649. When the pmtxr and weight, act perpendicularly to the arms of a straight, lever, the power is...

Welch's Improved American Arithmetic, Adapted to the Currency of the United ...

Oliver Welch - 1847 - 228 σελίδες
...through all the points. MECHANICAL POWERS. The Mechanical Powers in common use are sjx in number ; the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge and the Screw. The Weight is the body to be moved ; the Power is the body that moves it ; and...

The American Arithmetic

James Robinson (of Boston.) - 1847
...power, or to produce motion so as to save time or force. The mechanical powers are six in number, viz. : the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. The weight signifies the body to be moved, or the resistance to be overcome ;...

An Encyclopædia of Civil Engineering, Historical, Theoretical, and ..., Τόμος 1

Edward Cresy - 1847 - 1039 σελίδες
...and the several machines described for defence, show a thorough acquaintance with the properties of the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ; and Euclid's Elements, collected about 280 years before Christ, for the instruction...

Higher Arithmetic, Or, The Science and Application of Numbers: Combining the ...

James Bates Thomson - 1848 - 422 σελίδες
...breadth 35 ft., and the depth 25 ft. 1 MECHANICAL POWERS. G48. The Mechanical powers are six, viz: the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. 649. When the pi.wer and weight act perpendicularly to the arms of a straight lexer, the power is to...

Scientific Agriculture: Or, The Elements of Chemistry, Geology, Botany and ...

Miles M. Rodgers - 1848 - 296 σελίδες
...and beautiful pieces of machinery which have ever been constructed. These few elementaiy powers are, the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw. The lever is a straight bar placed upon a supporting point called a fulcrum, with...

Mensuration, Mechanical Powers and Machinery: The Principles of Mensuration ...

Daniel Adams - 1849 - 128 σελίδες
...to facilitate the moving of weights or the overcoming of resistance. They are six in number ; viz., the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In mechanical powers and in machinery, the thing to be moved, or the resistance...

The Modern Builder's Guide

Minard Lafever - 1849 - 119 σελίδες
...natural strength without them. The simple machines, called Mechanical powers, are six in number ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ; and of these all the most compound engines consist. The general principle is,...




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