 | Edgar Flandreau Van Buskirk, Edith Lillian Smith - Science - 1919 - 440 pages
...the crank and axle. Many books state that the simple machines are six in number, the lever, the crank and axle, the pulley, the inclined plane, the wedge, and the screw. If we reduce them to their very lowest terms, however, we find that the first three are all forms of... | |
 | Delos Fall - Science - 1920 - 438 pages
...matter how complex, are only combinations of a few very simple machines. These simple machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The lever. The crowbar is a good example of a lever, the most commonly used of all machines. Notice... | |
 | Edgar Alden Bedford - Project method in teaching - 1921 - 436 pages
...combination of a large number of simple machines which can easily be understood. These simple machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. Problem 4. How the lever is used in doing work. — 1. Let us suppose that a heavy rock must be lifted,... | |
 | Frederic Delos Barber, Merton Leonard Fuller, John Lossen Pricer, Howard William Adams - Science - 1921 - 564 pages
...expressed in numbers. 562. Simple and Compound Machines. — Six SIMPLE MACHINES are generally recognized: The LEVER, the WHEEL and AXLE, the PULLEY, the INCLINED PLANE, the WEDGE, and the SCREW. Most machines are COMPOUND MACHINES, ie, they are combinations of two or more of the simple machines.... | |
 | Thomas Edward Finegan - Encyclopedias and dictionaries - 1922 - 502 pages
...<Ä°Ä struments or elements of which every machine, however complicated, must be constructed ; they are the lever, the wheel and axle, the pulley, the inclined plane, the wedge and screw. See those terms. МррЪятПРЧ (me-kan'ikz), the term JUeuilUUbS originally used to denote... | |
 | William Henry Snyder - Science - 1925 - 648 pages
...strength many-fold by the contrivance and use of simple tools and machines. The simple machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. A general statement of the law of all these machines is that what is gained in power is lost in speed,... | |
 | Baptists - 1861 - 714 pages
...is evident from the fact that all mechanical powers can be reduced to six archetypal principles — the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The same thing may be said of crystallography, as is evident from the fact that all crystals, however... | |
 | Rob Beamish - Division of labor - 1992 - 218 pages
...resistances, than could be effected by the natural strength without them. They are usually accounted six in number, viz. the lever, the wheel and axle,...pulley, the inclined plane, the wedge, and the screw. (174, 175) (HuUon A Course of Mathematics.)" The reference to Hutton is misleading. Marx either recorded... | |
 | Jennifer Lawson - Lesson planning - 2001 - 72 pages
...machines, no matter how complex, are made up of one or more simple machines. There are six simple machines: the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. Gears are wheeland-axle mechanisms with teeth that fit together to change the direction of movement.... | |
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MECHANICAL POWERS are certain simple instruments employed in raising greater weights, or overcoming greater resistance than could be effected by the direct application of natural strength. They are usually accounted six in number; viz. the Lever, the... 
