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Updated: July 27, 2025
Everywhere the ether responds to the impulses of the crackling sparks, and even from the airship we soon may expect wireless messages as the few untrodden regions of our globe are explored. In no department of the application of electricity to practical work has there been a greater development than in electro- metallurgy and electro-chemistry.
In 1838, Spencer, of London, made casts of coins, and cast in intaglio from the matrices thus formed; in the same year Jacobi, of Dorpat, in Russia, made casts by electro deposit, which caused him to be put in charge of the work of gilding the dome of St. Isaac at St. Petersburg. Electrotyping for the purposes of printing originated with Mr.
"It behoves us seein' as how a tempory cloud has descended between these two establishments it behoves us, I say, to watch out for its silver lining in one form or another. Which talking of silver reminds me of electro, and I'll ask you, Palmerston, if that's the way to leave a mustard-pot and call yourself an indoor male?"
The electro connections are at the head and the inside of the right calf, the trousers being cut from the knee downward, so that a contact can be made with the bare flesh. Just back of the chair is a large closet, which conceals all of the electrical apparatus necessary to throw on or off the current at the will of the Electrician, by whose hand the condemned man is sent to eternity.
It seems at first sight that in such an instrument the directing force should be constant from the moment the electro was saturated, and it would be possible, were sufficiently thin cores used, to obtain a constancy in the directing magnetic field for relatively feeble intensities. In reality, the actions are more complex.
When a current is sent into the electro-magnet, E, the brake shoe, F, is attracted, leaves the fly wheel, and sets free the jack, which continues to revolve until the current ceases to pass into the electro. The problem, then, is reduced to sending a current into the electro and in shutting it off at the proper moment. This result is obtained very simply by means of an auxiliary Leclauche pile.
But few families have any large quantity of plate, and electro has almost entirely superseded silver; metal is not common for dishes, and is quite unknown for plates. Nor is the crockery at all a strong point even in the wealthiest houses.
When mechanical power is employed for producing a current by means of a magneto-electric or dynamo-electric machine or, to use a better expression, by means of a mechanical generator of electricity it is necessary in reality to expend a greater quantity of power than i squaredR in order to make up for losses which result either from ordinary friction or from certain electro magnetic reactions which occur.
It's called electro electro freezing or something like that." "Electrodiaphoresis?" Douglas nodded. "That sounds like it. I don't know anything about it. One of Grandfather's men did the basic work. We just follow instructions." He shrugged. "Well since you know the secret there's no sense in hiding the bodies. Come along and tell me what's wrong."
SIR, The bearer hereof, Professor Samuel F.B. Morse, of New York, Superintendent of Electro Magnetic Telegraphs for the United States, is about to visit Europe for the purpose of exhibiting to the various governments his own system, and its superiority over others now in use.
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