 ... 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 - Pàgina 206per Edward Livingston Youmans - 1868 - 438 pàginesVisualització completa - Sobre aquest llibre
 | 1858 - 448 pàgines
...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... | |
 | 1859 - 448 pàgines
...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... | |
 | 1859 - 448 pàgines
...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... | |
 | Hermann von Helmholtz - 1873 - 432 pàgines
...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... | |
 | Hermann Ludwig F. von Helmholtz - 1873 - 424 pàgines
...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... | |
 | Hermann Ludwig F. von Helmholtz - 1881 - 390 pàgines
...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... | |
 | Hermann von Helmholtz - 1883 - 432 pàgines
...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... | |
 | Geoorge W. Holley - 1894 - 312 pàgines
...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... | |
 | Oliver Joseph Thatcher - 1907 - 494 pàgines
...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... | |
 | Oliver Joseph Thatcher - 1907 - 482 pàgines
...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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