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Updated: May 25, 2025
In the work of introducing his propellers good progress was made, especially in boats built for use on the Great Lakes, so that by 1844, when the U.S.S. "Princeton" went into commission, there were in use some twenty-five vessels with the screw-propeller as a means of propulsion.
Giffard, inventor of the steam injector, had already made balloon ascents when he turned to aeronautical propulsion, and constructed a steam engine of 5 horsepower with a weight of only 100 lbs. a great achievement for his day.
Sorrow and joy have each their peculiar narrowness; and a religious enthusiasm like Savonarola's which ultimately blesses mankind by giving the soul a strong propulsion towards sympathy with pain, indignation against wrong, and the subjugation of sensual desire, must always incur the reproach of a great negation.
Then the gray sedan lifted smoothly upwards to a height of twenty feet, turned sharply in mid-air, lifted again, and seemed to make a smooth landing on top of a huge garage building! There had been no roar of jets and no evidence of any means of propulsion. The patrol car went on down the Avenue, heading for the diner. The officers inside apparently had missed the whole affair.
These latter consisted of two elbowed pipes issuing from the sides of the vessel and capable of pivoting in the exhaust ports in such a way as to each turn its mouth downward at will, backward or forward. The water expelled by the elbowed pipes reacted through pressure, as in the hydraulic tourniquet of cabinets of physics, and effected the propulsion of the vessel.
To the whale, his tail is the sole means of propulsion. Scroll-wise coiled forwards beneath the body, and then rapidly sprung backwards, it is this which gives that singular darting, leaping motion to the monster when furiously swimming. His side-fins only serve to steer by.
He saluted me, and together we descended the broad boulevard between the widely separated lustres that became more crowded as they massed like a progressive deepening of color into the eddying splendors of the City itself. "Again I realized how swift is motion in Mars. We wished to reach the City, and we glided to it by the rapid propulsion of desire.
By the incoming of the European to inland China a transformation is being wrought, not the natural growth of a gradual evolution, itself the result of propulsion from within, but produced, on the contrary, by artificial means, in bitter conflict with inherent instincts, inherited traditions, innate tendencies, characteristics, and genius, racial and individual.
The handiness of these short and effective guns, which were capable of being loaded and fired nearly twice as quickly as the long small-bore guns, gave England the victory in many a naval battle, where the firing was close and quick, yardarm to yardarm. But Mr. Miller's greatest claim to fame arises from his endeavours to introduce steam-power as an agent in the propulsion of ships at sea. Mr.
Of steam applied to propulsion, she had no knowledge, until steamboats of foreign construction appeared in her waters and roused the wonder of the oblique-eyed natives by their mysterious powers. An English house placed a boat on the route between Canton and Macao, and advertised it to carry freight and passengers on stated days.
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