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Updated: June 25, 2025
Probably the most successful attempt at propulsion by this method was that of a French locksmith named Besnier. Over two hundred years ago he made for himself a pair of light wooden paddles, with blades at either end, somewhat similar in shape to the double paddle of a canoe. These he placed over his shoulders, his feet being attached by ropes to the hindmost paddles.
The application of steam to the propulsion of machinery, and the discovery of engines capable of competing with the human hand, led to the substitution of machine-made fabrics for clothing, in place of homespun articles of domestic manufacture.
It wants first to sense them, or as Froebel would say "to make the outer inner"; it wants to play with them, to construct with them, and along the line of this inward propulsion the educational process has to act. In the same way, vocation is having great influence upon the higher terminal stages of education.
The checking of such terrific speed would be impossible, were it not for the water in these canals. We had covered several hundred miles without propulsion, and our speed had not decreased perceptibly, when, moving a lever at his side, Reon turned the aerenoid slightly downward.
In comment on these figures, it should be added that there were half a hundred large ships available from the merchant service, and also that pinnaces and other small craft still combined oar and sail. In England the superiority of sail propulsion was soon definitely recognized, and discussion later centered on the relative merits of the medium-sized galleon and the big "great-ship."
Then with our superior knowledge of propulsion we could forever settle the perplexing problem of aerial navigation. These exceptional people, living in such terrible fire, wear pieces of garments made of the finest texture. The hair-like threads are composed of metallic substances far more enduring than gold or platinum.
The finest and fastest boats were side-wheelers, but a large wheel at the stern, or two stern wheels, side by side, capable of independent action, were common modes of propulsion.
He fixed two tentacles upon the tantalizing prey; then the other tentacles straightened out, and with a sharp jet of water from his propulsion tube he essayed to dart back to his lair. To his amazement, the prey refused to come. In some mysterious way it managed to hold itself or was held just where it was. Amazement gave way to rage.
Bud, who was familiar with ion propulsion for spaceships, wrinkled his brow in a puzzled frown. "A goofy idea just occurred to me, but I think it may work out," Tom replied. He seized a pencil and began explaining what he had in mind. The drive unit would take water into itself, separate the ionized molecules, and expose them to an electric field. Thus a stream of water would be forced out.
I think it was a certain tone, depending upon the possibility of sorrow morbidezza, perhaps. She never smiled." "I am not sure about your physics, Mr. Smith," said the doctor. "If she had no gravity, no amount of muscular propulsion could have given her any momentum. And again, if she had no gravity, she must inevitably have ascended beyond the regions of the atmosphere."
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