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All of the parts of this transmitting set are the same as for the 500 mile transmitter just described except the motor generator and while this develops the same plate potential, i.e., 1,000 volts, it must have an output of 500 watts; it will cost you in the neighborhood of $175.00.
There will be a segment dam, with flood gates; about an eighth of a mile of piping; a Pelton wheel, boxed in; a generator speeded down; a two-horse-power storage battery; wiring and connections made with present lighting system in house; lodge; stables and garage; and the thing is done if it works smoothly.
Thus the deity was both generator and destroyer, one face showing benevolence and kindness, the other violence and rage. In many of the deities both male and female principles were represented in one, an Androgyne deity which was an ideal frequently attempted.
As, however, an understanding of the how and the why of the dynamo-electric machine or generator is the very A B C of electrical engineering, an exposition of the fundamental principles of the mechanical production of electric currents demands an important place in the current science of the day.
Then the professor, glancing aloft, saw what had happened, and hastened to his helper. "Quick, Washington!" he shouted. "Start the gas generator at full speed! We must pump lots of the gas in to keep us afloat! We are in great danger!" "Why not try the machine gun on the eagles?" shouted Jack. "Good idea!" exclaimed the inventor. "You two boys work it!"
The first electric light was very brief and brilliant and was made by accident. Sir Humphrey Davy, in 1809, in pulling apart the two ends of wires attached to a battery of two thousand small cells, the most powerful generator that had been made to that time, produced a brief and brilliant spark, the result of momentarily imperfect contact.
"Simply that our friend Barker is shut up in the pilot-house, from which he cannot now escape, and Lady Olivia has just cut off the flow of vapour at the generator; in consequence of which the engines have stopped, for one thing, and, for another, Barker may now play as much as he pleases with the levers and valves in the pilot-house without doing any mischief," answered von Schalckenberg.
The Flying Mermaid was about a ton lighter than it would be when fully fitted out, but to make up for this the professor had left in the ship a lot of tools and surplus machinery so that the craft held as much weight as it would under normal conditions. If the gas lifted it now it would at any other time. "Start the generator," said Mr. Henderson, to Mark.
"By a device geared to the rear axle," answered Tom. "It runs a sort of dynamo, though it would be difficult for you to understand it if I went into details. It's something like the ordinary generator and turns a constant stream of 'juice' into the storage batteries that, in turn, feed the engines."
Edison, familiar with batteries in telegraphy, could not bring himself to believe that any substitute generator of electrical energy could be efficient that used up half its own possible output before doing an equal amount of outside work. Undaunted by the dicta of contemporaneous science, Mr. Edison attacked the dynamo problem with his accustomed vigor and thoroughness.
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