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Updated: June 29, 2025
The perfecting of the 'Coastal' and N.S. types of airship, together with the extension of wireless telephony between airship and cruiser or other warship, in all probability will render the use of the kite balloon unnecessary in connection with naval scouting.
To-day's commercial world uses old systems of wireless telegraphy and telephony which were known and done with thousands of years ago but 'we' have the sound-ray the light which carries music on its wings and creates form as it goes." Here he released her hands.
This chapter is of necessity brief in its reference to many extremely interesting points and details; and to some readers it may seem incomplete in its references to the work of other men than Edison, whose influence on telephony as an art has also been considerable.
"Well, then I'll try to explain to you, in simple language, the general principles of radio telephony," said Mr. Chadwick. "In the first place you know, of course, from your wireless studies, that an electric wave sent into the air will travel till it strikes something, such as an aërial."
Just as the telephone was more complex than the telegraph, and the wireless telegraph than the telephone, so the apparatus used in wireless telephony is even more complex and technical. Working with the intricate mechanisms and delicate apparatus, one part after another was improved and adapted to the task at hand.
The aerial wire is precisely the same for either wireless telegraphy or wireless telephony. The transmitter of a wireless telegraph set generally uses a spark gap for setting up the electric oscillations, while usually for wireless telephony a vacuum tube is employed for this purpose.
China, Japan, and France have sent delegations to New York City "the Mecca of telephone men," to learn the art of telephony in its highest development. Even Russia has rescued the telephone from her bureaucrats and is now offering it freely to men of enterprise. In most foreign countries telephone service is being steadily geared up to a faster pace.
It was almost thirty years since he had been called in to create the business structure of telephony, and to shape the general plan of its development. Since then he had done many other things. The one city of Buenos Ayres had paid him more, merely for giving it a system of trolleys and electric lights, than the United States had paid him for putting the telephone on a business basis.
In the developing countries, it is unlikely that Internet connections will use traditional phone lines, as there are other technological solutions. The developing countries' equipment rate for digital lines is equivalent to the rate of industrialized countries. The growth in mobile telephony is also spectacular. The solution could be brought by cellular radiotelephony and satellite connection.
Dom Pedro of Brazil, who befriended Bell at the Centennial, introduced telephony into his country in 1881; but it has not in thirty years been able to obtain ten thousand users. Canada has exactly the same number as Sweden one hundred and sixty-five thousand. Mexico has perhaps ten thousand; New Zealand twenty-six thousand; and Australia fifty-five thousand.
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