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Updated: May 11, 2025


They had fixed for all time essential elements of the art, and had set up a standard of attainment in pure form which no subsequent architecture has ever been able to reach. The Erechtheum was an exception. See Delphi, by Dr. Frederick Poulsen, p. 52.

Try them again, Central. Hello, hello, Central " Kennedy stopped the machine. "It must be further along on the disc," he remarked. "This, by the way, is an instrument known as the telegraphone, invented by a Dane named Poulsen. It records conversations over a telephone on this plain metal disc by means of localised, minute electric charges."

Besides these the names of Popoff, Jackson, Armstrong, Orling, Lepel, and Poulsen stand high in the wireless world.

Historical note on the Marconi-Stille steel tape recording machine. At the beginning of the century Professor Poulsen, one of radio's earliest pioneers, discovered that a magnetic impression could be made on a moving length of wire which remained on the wire even after it had been rolled up. He used his machine to record the Morse code only, that is magnetism 'on' and 'off'. In 1924 Dr.

Thus in 1903 it was found by Poulsen, elaborating on a principle first discovered by Duddell, that an oscillatory current may be derived from an electric arc maintained under certain conditions and that undamped high frequency waves so produced were suitable for wireless telegraphy.

To them he was in their ice-bound home what Father Damien was to the stricken lepers in the South seas, and Dr. Grenfell is to the fishermen of Labrador. Hans Poulsen Egede, the apostle of Greenland, was a Norwegian of Danish descent. He was born in the Northlands, in the parish of Trondenäs, on January 31, 1686.

Try them again, Central. Hello, hello, Central " Kennedy stopped the machine. "It must be further along on the disc," he remarked. "This, by the way, is an instrument known as the telegraphone, invented by a Dane named Poulsen. It records conversations over a telephone on this plain metal disc by means of localised, minute electric charges."

"What is it?" whispered Halsey, as if fearful of being overheard. "A telegraphone," replied Constance, shutting it off for a moment. "A telegraphone? What is that?" "A machine for registering telephone conversations, dictation, anything of the sort you wish. It was invented by Valdemar Poulsen, the Danish Edison. This is one of his new wire machines.

Rust has no effect. The record lasts as long as steel lasts." Craig continued to tinker tantalizingly with the machine which had been invented by a Dane, Valdemar Poulsen. He had scarcely finished testing out the telegraphone, when the laboratory door opened and a clean-cut young man entered.

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