Reginald Fessenden

Reginald Aubrey Fessenden ( born October 6, 1866 in East Bolton, Quebec, † July 22, 1932 in Bermuda) was a Canadian inventor. With approximately 500 patents at the U.S. Patent Office, he is one of the people with the most patents. RA Fessenden succeeded in the first decade of the 20th century, with a machine stations, as well as Valdemar Poulsen with his arc transmitter, the world's first wireless transmission of voice, which both of the two was a pioneering achievement for the wireless technology such as the development of radio.

Life

Trained as an electrician, led Fessenden his research in the United States of America, where he worked as a chemist with Thomas Alva Edison in the development of insulating materials for electrical cables. In 1892 he worked with George Westinghouse at the lighting for the World Columbian Exposition in Chicago. Fessenden was professor of electrical engineering at Purdue University and a year later Dean of Faculty of Electrical Engineering at the Western University of Pennsylvania.

On December 23, 1900, he conducted a first experiment of wireless voice transmission. There are no documents proving the intelligibility of this experiment. Finally Fessenden In 1902, with the support of two Pittsburgh entrepreneur, the National Electric Signaling Company ( NESCO ) with the aim of radio links for the Morse code between Brant rock (Massachusetts ) and various points in the U.S. to set up for the U.S. Weather Bureau.

1903 Fessenden's first machine transmitter, called a alternator a VLF transmitter, by Charles P. Steinmetz at General Electric ( GE) was built. In 1904 he gave GE the contract to build an alternator, which should be a thousand times stronger.

Two years later, in 1906, Ernst Alexanderson the finished Alexanderson alternator before, a long-wave transmitter that was installed in Fessenden's radio station in Brant rock. There resulted on Christmas Eve that year, RA Fessenden, the world's first wireless music and voice mixed content by in which he played from the Bible reading and even on the violin Silent night, holy night, while singing. The shipment was received even on ships in the Caribbean Sea.

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