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Updated: June 17, 2025
Added to the efforts of these able engineers was the work of Prof. Michael I. Pupin, of Columbia University, whose brilliant invention of the loading coil some ten years before had startled the scientific world and had increased the range of telephonic transmission through underground cables and through overhead wires far beyond what had formerly been possible.
Perhaps he had not anticipated that Orme would hail it; the probability was that he had wished Maku's assistance without a definite idea of what that assistance should be; but the use of the car by Orme fell in nicely with his plans. He had assumed readily enough the direction the car would take, and getting promptly into telephonic communication with Arima, had arranged this meeting on the road.
Three of her friends, congenial in age and sex, were out of town for the summer; two had been ascertained, by telephonic inquiries, to be taking commanded siestas; and neither the other one nor Florence had yet forgotten that yesterday, although they were too religious to commit themselves to a refusal to meet as sisters in the Great Beyond, they had taken the expurgated oath that by Everything they would never speak to each other again so long as they both should live.
"So far as I am concerned, I have had your house unobtrusively watched for the protection of the inmates, I hope you understand and I arranged also that anything unusual in the shape of telegrams or telephonic messages" here he glanced amusedly at Theydon "should be communicated to the Yard. I heard, therefore, of Mrs.
The two electrodes, the gauze, and the coil are connected, as shown, to a receiving telephone, T. Upon the application of heat, as from the flame of a spirit lamp placed below, a thermo-electric current is set up throughout the circuit; in this condition the apparatus becomes a very perfect microphone, and when the pressure between the electrodes is properly adjusted it is a very efficient telephonic transmitter, transmitting articulate speech and musical sounds with remarkable clearness and fidelity.
Chadwick, after a moment's thought, "and I believe that I am the only man in the world employed with radio telephonic problems who knows of it." "Why can't you use it, then?" asked Jack. "Because there are almost insurmountable difficulties in the way. There is a substance chemically known Z. 2.
Now listen in for telegraphic signals or telephonic speech or music; when you hear one or the other slide the secondary coil in and out of the primary coil until the sounds are loudest; now move the contact switch over the points forth and back until the sounds are still louder, then move the slider to and fro until the sounds are yet louder and, finally, turn the knob of the condenser until the sounds are clear and crisp.
He agreed to take part of the royalties in stock, when any local company preferred to pay its debts in this way. And he took steps toward standardizing all telephonic apparatus by controlling the factories that made it. These various measures were part of Vail's plan to create a national telephone system.
Military automobile service has reached a high degree of perfection . . . all our military units have telephonic appliances." More details are given, and the writer says: "It is important that Russian public opinion be conscious that the country is prepared for all possibilities." Yougourieff had given October as the date when "we should be ready for our great war."
And he persisted, in spite of a considerable deal of ridicule, in maintaining that the telephone was destined to connect cities and nations as well as individuals. Four months after he had prophesied the "grand telephonic system," he encouraged Charles J. Glidden, of world-tour fame, to build a telephone line between Boston and Lowell. This was the first inter-city line.
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