Marconi radio apparatus

Marconi radio apparatus

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Credit: HUMANITIES & SOCIAL SCIENCES LIBRARY/NEW YORK PUBLIC LIBRARY/SCIENCE PHOTO LIBRARY

Caption: Marconi radio equipment on a ship. The equipment includes headphones and a Morse code key (lower centre). The equipment is labelled (left-right): continuous wave transmitter; direction finder; receiver; spark transmitter (all on left wall); emergency transmitter (right wall). Marconi patented his radio equipment in 1896. His initial aim had been to allow communication with those at sea. He achieved the first trans-Atlantic radio signal in 1901. Photographed for The March of Commerce (1927), volume 4 of The Pageant of America: A Pictorial History of the United States, a 15-volume series that commemorated 150 years since the founding of the USA in 1776.

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Keywords: 1900s, 20th century, american, apparatus, black-and-white, boat, clock, code, communication, communications, continuous wave, direction finder, emergency transmitter, equipment, historical, history, history of science, marconi apparatus, marine, monochrome, morse key, radio, receiver, ship, spark transmitter, tapper, technological, technology, telecommunicaitons, telecommunication, the march of commerce, the pageant of america, transmitter, us, wireless

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