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Βιβλία Βιβλία 111 - 120 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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Common things and elementary science in the form of object lessons

Joseph Hassell - 1883 - 384 σελίδες
...the class that all the contrivances can be grouped under one or other of six simple machines, namely, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. These are called the Mechanical Powers. Three of these are considered primary,...

Natural Philosophy, for the Use of Schools and Academies

Joseph Anthony Gillet, William James Rolfe - 1884 - 509 σελίδες
...complicated, is made up of a very few elements, called simple machines, or mechanical powers : These are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The force applied to work the machine is called the power; and the resistance...

Intermediate Lessons in Natural Philosophy

Edwin James Houston - 1884 - 199 σελίδες
...work can be done by any machine than that expended in working or moving it. The mechanical powers are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. In a lever of the first class, the fulcrum is between the power and the weight....

Mechanics, hydrostatics and pneumatics

Augustin Privat-Deschanel - 1884
...applications of the foregcing 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...

Home Culture: A Self-instructor and Aid to Social Hours at Home, Comprising ...

Thomas Hunter - 1884 - 672 σελίδες
...soon fills it to a level with that in the canal above, the boat rising with it, ready to proceed. 43. The Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge and the Screw. 44. Levers are divided into three classes: in the first class, the fulcrum is...

A Treatise on Elementary Statics

John Greaves - 1888 - 274 σελίδες
...suppose the machines perfect ones, ie with efficiency equal to unity. 133. The simple machines are, — the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Screw and the Wedge. The principle of the wheel and axle is the same as that of the lever, and the screw and wedge are identical...

Elementary Schools how to Increase Their Utility: Being Six Lectures ...

William Bousfield - 1890 - 189 σελίδες
...and modern—Matter in motion—Force, inertia, friction, energy—The simple mechanical powers, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ... ... ... 145 SCIENCE-TEACHING BY W. LANT CARPENTER, BA, B.Sc. SCIENCE-TEACHING...

Elementary Schools how to Increase Their Utility: Being Six Lectures ...

William Bousfield - 1890 - 189 σελίδες
...modern — Matter in motion — Force, inertia, friction, energy — The simple mechanical powers, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ... ... ... 145 O oq L_ CD H4 01 CD ' O O o NG B.Sc. do o H 5 O IU o (Xi • vn...

The Boy's Modern Playmate: A Book of Sports, Games, and Pastimes

John George Wood - 1891 - 816 σελίδες
...•velocities, and we find it exemplified in every machine. There are six simple machines, namely, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. They are called the Six Mechanical Powers. Every machine, however complicated,...

Object Lessons in Elementary Science: Following the Scheme Issued ..., Τόμος 3

Vincent Thomas Murché - 1894
...simple machines, can be grouped under six heads, and are spoken of as the mechanical powers. They are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The lever, the pulley, and the inclined plane are the simplest of all, and are...




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