 | 1858 - 448 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...by the muscles of men and animals. After this law had been established by the great mathematicians of the last century, a perpetual motion, which should... | |
 | 1859 - 448 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...by the muscles of men and animals. After this law had been established by the great mathematicians of the last century, a perpetual motion, which should... | |
 | John Timbs - 1860 - 432 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm in throwing it." We may here relate a curious wager, which Sir Robert Moray, at the request of Charles II., brought... | |
 | John James Drysdale, Robert Ellis Dudgeon, Richard Hughes, John Rutherfurd Russell - 1870 - 842 pàgines
...illustrations of mechanical equivalence from machinery driven by various powers, Helmholtz* says :—" From these examples you observe, and the mathematical...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... | |
 | 1859 - 448 pàgines
...compressed into so short a time, a much greater velocity is imparted to tho ball than would be possible to communicate to it by the unaided effort of the arm...examples you observe, and the mathematical theory lias corroborated this for all purely mechanical, that is to say, for moving forces, that all our machinery... | |
 | Hermann von Helmholtz - 1873 - 432 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...by the muscles of men and animals. After this law had been established by the great mathematicians of the last century, a perpetual motion, which should... | |
 | Hermann Ludwig F. von Helmholtz - 1873 - 424 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...by the muscles of men and animals. After this law had been established by the great mathematicians of the last century, a perpetual motion, which should... | |
 | Hermann von Helmholtz - 1883 - 432 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...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... | |
 | Oliver Joseph Thatcher - 1907 - 494 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...by the muscles of men and animals. After this law had been established by the great mathematicians of the last century, a perpetual motion, which should... | |
 | William S. Knickerbocker - 1927 - 410 pàgines
...compressed into so short a time, a much greater velocity is imparted to the ball than would be possible to communicate to it by the unaided effort of the arm...by the muscles of men and animals. After this law had been established by the great mathematicians of the last century, a perpetual motion, which should... | |
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... communicated to it. And while we have pumped for perhaps a quarter of an hour to charge the gun, the force is expended in a few seconds when the bullet is discharged; but because the action is compressed into so short a time, a much greater velocity... 
