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The great velocities and the most uniform pressures by the use of smokeless powder have been attained with this Palliser bullet. A great many stories have been told about the noiselessness of smokeless powder. But there is no such thing as a noiseless gunpowder.
Along this shot a strange traffic of narrow rubber-shod vehicles, great single wheels, two and four wheeled vehicles, sweeping along at velocities of from one to six miles a minute. Railroads had vanished; a few embankments remained as rust-crowned trenches here and there. Some few formed the cores of Eadhamite ways.
21st July from the experiments and observations we were enabled to make with rispect to the comparative velocities of the courants of the rivers Mississippi Missouri and Plat it results that a vessel will float in the Mississippi below the entrance of the Missouri at the rate of four miles an hour. in the Missouri from it's junction with the Mississsippi to the entrance of the Osage river from 51/2 to 6 from thence to the mouth of the Kanzas from 61/2 to 7. from thence to the Platte 51/2 while the Plat is at least 8. The Missouri above the junction of the river plat is equal to about 31/2 miles an hour as far as the mouth of the Chyenne where its courant still abates and becomes equal to about three miles an hour from information it dose not increase it's volocity for
Moreover, these electrified molecules animated with extremely rapid velocities correspond, according to the theory verified in the celebrated experiment of Rowland on convection currents, to a true electric current, and can be deviated by a magnet.
Calhoun threw the overdrive switch and the Med Ship flicked back into that questionable state of being in which velocities of some hundreds of times that of light are possible. The sensation of going into overdrive was unpleasant. A moment later, the sensation of coming out was no less so. Calhoun had experienced it often enough, and still didn't like it.
This simple contrivance permits the use of curves which would otherwise be entirely impracticable. Such a track does not admit of high speeds, and its very use implies the existence of natural obstacles which prevent the acquirement of great velocities.
The displacement of lines does not tell us whether the motion is in the star, the earth, or both. The displacement of the lines being measured, we can calculate the rate of approach or recession in miles per second. In 1868 Huggins succeeded in thus measuring the velocities of stars in the direction of the line of sight. This last observation was suggested by Zollner.
Because of the difference in the velocities of Mercury and the earth in their revolutions around the sun, one synodic revolution of Mercury, i.e., from one inferior conjunction to the next, requires nearly one hundred and sixteen days.
Two directions of vibration are open to such waves: the ether particles can vibrate parallel to the axis or perpendicular to it. They do both, and hence immediately divide themselves into two systems propagated with different velocities. Double refraction is the necessary consequence. By means of Iceland spar cut in the proper direction, double refraction is capable of easy illustration.
Professor Holden aptly compared the sun to "a vast whirlpool where the velocities of rotation depend not only on the situation of the rotating masses as to latitude, but also as to depth beneath the exterior surface."
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