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" ... and apparatus generate no force, but simply yield up the power communicated to them by natural forces — falling water, moving wind, or by the muscles of men and animals. After this law had been established by the great mathematicians of the last... "
The Correlation and conservation of forces - Page 206
by Edward Livingston Youmans - 1868 - 438 pages
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The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art

1858 - 448 pages
...established by the great mathematicians of the last century, a perpetual motion, which should only make use of pure mechanical forces, such as gravity, elasticity,...decision of this question marks the progress of modern physics. In the case of the air-gun, the work to be accomplished in the propulsion of the ball was...
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The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 9

1859 - 448 pages
...established by the great mathematicians of the last century, a perpetual motion, which should only make use of pure mechanical forces, such as gravity, elasticity,...decision of this question marks the progress of modern physics. In the case of the air-gun, the work to be accomplished in the propulsion of the ball was...
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The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 9

1859 - 448 pages
...there are still other natural forces which are not reckoned among the purely moving forces, — hcut, electricity, magnetism, light, chemical forces, all...remained open ; the decision of this question marks tho progress of modern physics. In the case of the air-gun, the work to be accomplished in the propulsion...
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Popular Lectures on Scientific Subjects

Hermann von Helmholtz - 1873 - 432 pages
...by the great mathematicians of the last century, a perpetual motion, which should make xise solely of pure mechanical forces, such as gravity, elasticity,...decision of this question marks the progress of modern physics, regarding which I promised to address you. In the case of the air-gun, the work to be accomplished...
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Popular lectures on scientific subjects, tr. by E. Atkinson. [1st], Volume 1

Hermann Ludwig F. von Helmholtz - 1873 - 424 pages
...nevertheless stand in manifold relation to mechanical processes. There is hardly a natural process to he found which is not accompanied by mechanical actions,...decision of this question marks the progress of modern physics, regarding which I promised to address you. In the case of the air-gun, the work to be accomplished...
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Popular lectures on scientific subjects, tr. by E. Atkinson. [1st]

Hermann Ludwig F. von Helmholtz - 1881 - 390 pages
...established by the great mathematicians of the last century, a perpetual motion, which should make use solely of pure mechanical forces, such as gravity, elasticity,...decision of this question marks the progress of modern physics, regarding which I promised to address you. In the case of the air-gun, the work to be accomplished...
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Popular Lectures on Scientific Subjects

Hermann von Helmholtz - 1883 - 432 pages
...there are still other natural forces which are not reckoned among the purely moving forces,—heat, electricity, magnetism, light, chemical forces, all...decision of this question marks the progress of modern physics, regarding which I promised to address you. In the case of the air-gun, the work to be accomplished...
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Magnetism and a New Cosmography

Geoorge W. Holley - 1894 - 312 pages
...among the purely moving forces—heat, electricity, magnetism, light, chemical forces, all of which stand in manifold relation to mechanical processes....or from which mechanical work may not be derived." The agency of heat in nature is almost universal, and it either primarily occasions or materially influences...
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The Library of Original Sources: 1833-1865

Oliver Joseph Thatcher - 1907 - 494 pages
...spring, which is accomplished when we wind up our clocks and watches. yeight or to iftfnt «.. four hours, the original force being thus slowly consumed...decision of this question marks the progress of modern physics. In the case of the air-gun, the work to be accomplished in the pro-' pulsion of the ball was...
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The Library of Original Sources, Volume 9

Oliver Joseph Thatcher - 1907 - 482 pages
...there are still other natural forces which are not reckoned among the purely moving forces—heat, electricity, magnetism, light, chemical forces, all...decision of this question marks the progress of modern physics. In the case of the air-gun, the work to be accomplished in the propulsion of the ball was...
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