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Updated: May 19, 2025
"I am free to confess that the loss of these seventy-eight inventions has left a sore spot in me that has never healed. They were important, useful, and valuable, and represented a whole lot of tremendous work and mental effort, and I had had a feeling of pride in having overcome through them a great many serious obstacles, One of these inventions covered the multipolar dynamo.
"It is what the dancing pithballs of Franklin's time were to the multipolar, high-frequency dynamo. But if we could control this force and handle it on a large scale we could do anything with it destroy the world, drive a car against gravity off into space, shift the axis of the earth perhaps!"
This was followed by the projecting in New York of the present Duane Street station, employing boilers of 200 pounds pressure, triple and quadruple expansion engines of the marine type, and direct-connected multipolar dynamos. Almost immediately thereafter, the station in Atlantic Avenue, Boston, somewhat on the same general design so far as contents is concerned, was erected.
It will be seen that the Thury armature resembles, in the system of winding, those of the Siemens machines and their derivatives. But it differs from these, however, in the details connected with the coupling of the wires, from the very fact that the features of a two-pole machine are not found exactly in a multipolar one.
This same intelligence structure, in the main, is in place today facing a multipolar world, where any number of power structures-whether they be states, international organizations, or even small groups of individuals-must be monitored with an understanding that extends to their leadership, culture, economic direction, and military capability.
Final Thoughts The implications of the ongoing revolution in telecommunications and information processing as it applies to our national security interests dictate that we need new imaginative concepts of operation to ensure the efficacy of our international leadership in a multipolar world.
We have not entered into specific descriptions of the many other forms of dynamo machines invented by Edison, such as the multipolar, the disk dynamo, and the armature with two windings, for sub-station distribution; indeed, it is not possible within our limited space to present even a brief digest of Edison's great and comprehensive work on the dynamo-electric machine, as embodied in his extensive experiments and in over one hundred patents granted to him.
The retina alone comprises three layers of nervous elements multipolar cells, bipolar cells, visual cells each of which has its individuality and is undoubtedly a very complicated organism: so complicated, indeed, is the retinal membrane in its intimate structure, that no simple description can give an adequate idea of it.
"Come and look at this, Jervis," said he. I wanted no second bidding, being on tenterhooks of curiosity, but came over and applied my eye to the instrument. "Well, what is it?" he asked. "A multipolar nerve corpuscle very shrivelled, but unmistakable." "And this?" He moved the slide to a fresh spot. "Two pyramidal nerve corpuscles and some portions of fibres." "And what do you say the tissue is?"
The engineers of that station, while recognizing the high value of the distributing system, went back to Edison's original scheme of a compact direct-connected steam and electric generator, but with dynamos of the multipolar type designed and built by Siemens & Halske, of Berlin, the engines being of vertical marine type.
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