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Updated: May 4, 2025
As yet they had not succeeded in making an iron accumulator; if they could, they would get about six or seven times the energy for the same weight of material, or could reduce the weight proportionately for the same power, and in that way they might eventually get 70 horse power in a boat of that size, because the weight of the motor was not great.
IT is more than a hundred years since the elementary principle of the storage battery or "accumulator" was detected by a Frenchman named Gautherot; it is just fifty years since another Frenchman, named Plante, discovered that on taking two thin plates of sheet lead, immersing them in dilute sulphuric acid, and passing an electric current through the cell, the combination exhibited the ability to give back part of the original charging current, owing to the chemical changes and reactions set up.
Now, these characteristics of the attention of genius could not be evoked by an "interesting" teacher, however subtle his art; nor could any accumulation of passive experiences become such an accumulator of psychical energies.
This "secondary" or reacting current is evidently due to the polarisation of the foils that is to say, the electro- positive and electro-negative gases collected on them. Professor Groves constructed a gas battery on this principle, the plates being of platinum and the two gases surrounding them oxygen and hydrogen, but the most useful development of it is the accumulator or storage battery.
While slandered as the accumulator of thousands by illicit means, Colonel Hamilton had wasted in the public service great part of the property acquired by his previous labours, and had found himself compelled to decide on retiring from his political station.
The interval had permitted time to recharge the discharged accumulator, and the fleet had been badly treated. Of the six ships, four had been brought down in rapid succession, and the remaining two ships had fled. When the first city had been wiped out, with a loss of life well in the hundreds of thousands, the other cities had, to limit of their abilities, set up the protective apparatus.
"A bibliognoste, from the Greek, is one knowing in title-pages and colophons, and in editions; the place and year when printed; the presses whence issued; and all the minutiæ of a book." "A bibliographe is a describer of books and other literary arrangements." "A bibliomane is an indiscriminate accumulator, who blunders faster than he buys, cock-brained and purse-heavy."
This gives rigidity to the rod, and hinders it from binding when the accumulator is taken out of its case. The copper piece which surmounts it is fitted at its base with an iron cramp, which is fixed in the lead, and above which is a wide furrow with two grooved parts, which being immersed in the lead hinders the copper from slipping round under the action of the screw.
"Keep an eye on things for a while, Nadia," he instructed, as soon as she could handle the controls, "and don't use any more power than is absolutely necessary. We'll need it all, and besides, they can probably detect anything we can use. There's probably enough leakage from the ruptured accumulator cells to mask quite a little emission, but don't use much.
The apparatus that we illustrate herewith offers some arrangements that are all its own as regards the process of concentrating the light. It is lighted, in fact, by a small incandescent lamp of 2 candle-power, placed within the apparatus and supplied by an accumulator.
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