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Updated: May 28, 2025
Figs. 3 and 4 show the armature of the continuous current dynamo, with the coils on one side of the rim, half way between the coils on the other side, so as to give a more continuous current. In the alternating current machine the slots on the opposite faces are face to face.
A dynamo is thus a machine so adjusted that when mechanical motion is supplied to it the energy of motion is converted into electricity; while an electromotor, on the other hand, is a piece of apparatus so designed that when electricity is applied to it, it is converted into motion. A steam engine, again, is designed to convert potential or passive energy into active energy.
The Jeannette was being fitted out, and Edison told De Long that he would make and present him with a small dynamo machine, some incandescent lamps, and an arc lamp. While the little dynamo was being built all the men in the laboratory wrote their names on the paper insulation that was wound upon the iron core of the armature.
It seemed to tremble slightly. There appeared to be a movement to the hundred pound weight which rested on the ground. It was as if it was tugging to get loose. "There it goes! There it goes!" cried Mark, joyfully. "Hurrah!" shouted Jack. "There she rises!" "It suttinly am projectin' itself skyward!" yelled Washington, coming from the dynamo.
We went out with arms in our hands, and hewed out spaces in savagery for homes. You don't seem to see it; but you are straining every nerve merely to shift people from many places to one, and there to exploit them. You wind your coils about an inert mass, you set the dynamo of your power of organization at work, and the inert mass becomes a great magnet.
Then he hurried back into the rear compartment, knocked to pieces the bearings and valves of the Deisel engine, tangled up the wiring of the storage batteries and the dynamo, beat off her brushes, disrupted the clutch on the crank shaft. It was shocking to Madden to see Caradoc smash and destroy such delicate and costly machinery.
But the instant the plate moved the galvanometer was influenced, and by revolving the plate quickly the needle could be deflected ninety degrees or more." This rotating disk was really a dynamo electric machine in miniature, the first ever constructed, but whose direct descendants are the ordinary dynamos.
The apparatus is one of the few successful practical applications of static electricity. Other electric gas-lighters consist of metal points placed on the burner, so that the electric spark from a small induction coil or dynamo kindles the jet.
For instance up to about two hundred miles a storage battery and induction coil are sufficient to produce the necessary ether disturbance, but when a greater distance is to be spanned an engine and a dynamo are necessary to supply energy for the electric waves.
And Azuma-zi was practically a savage still; the veneer of civilisation lay no deeper than his slop suit, his bruises, and the coal grime on his face and hands. His father before him had worshipped a meteoric stone, kindred blood it may be had splashed the broad wheels of Juggernaut. He took every opportunity Holroyd gave him of touching and handling the great dynamo that was fascinating him.
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