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Updated: July 20, 2025
There also you will find one of Heinke and Davis's magneto-electric exploders. I leave it entirely to your own judgment which apparatus to use. All sorts are admirable in their way; quite fresh, and in good working order. Have you anything to say to me before I go?" "All right, sir," replied Joe, in his sprawly hand; "I'll attend to orders. When do you start, and when do you expect to be back?"
I should not be surprised, then, if, in the arc formed by the alternating currents of magneto-electric machines, there should pass only one current of the same direction, and which would be the one formed by the superposition of direct currents, and if the reverse currents should cause return discharges in the midst of the generating bobbins at the moment the direct currents were generated. Th.
Faraday's first paper on Magneto-electric Induction, which I have here endeavoured to condense, was read before the Royal Society on the 24th of November, 1831. On January 12, 1832, he communicated to the Royal Society a second paper on Terrestrial Magneto-electric Induction, which was chosen as the Bakerian Lecture for the year.
Something magneto-electric eh? Forgive one question, Lefevre. I can see you look anxious: is Mary's condition very serious? most serious? I can bear to be told the complete truth." The doctor was touched by the old gentleman's emotion. He took his hand.
In 1856 he invented the Siemens' magneto-electric dial instrument giving alternate currents.
J. Van Malderem has demonstrated that the attraction of solenoids with the currents, not straight, of magneto-electric machines is almost as great as that of the same solenoids with straight currents; and it is very likely that the difference which may then exist should be so much the less in proportion as the induced currents have more tension.
To bring a magnet pole up toward a coil of wire is a process which can only last a very limited time; and its recession from the coil also cannot furnish a continuous current since it is a process of limited duration. In the earliest machines in which the principle of magneto-electric induction was applied, the currents produced were of this momentary kind, alternating in direction.
There was absolute cessation of all natural respiratory efforts, complete unconsciousness, total abolition of reflex action and motion, and galvanism with the ordinary magneto-electric machine failed to induce muscular contractions. The urine and fæces had been passed involuntarily during or immediately subsequent to the act of suspension.
The Bell telephone is virtually a small magneto-electric generator of electricity, and when two are joined in circuit we have a system for the transmission of energy. As the voice is the motive power, its talk, though distinct, is comparatively feeble, and further improvements were made before the telephone became as serviceable as it is now.
So he searched farther still, and with the aid of one of the shabby little books on electricity that he had purchased for a quarter from Williams's tiny showcase, he evolved the magneto-electric call bell such as we use to-day. This answered every purpose and nothing has ever been found that has supplanted it.
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