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. This is a Marconi type 31 crystal receiver for ships. Marconi patented his radio equipment in 1896, founding a company in 1897 to build the new equipment. Marconi's initial aim had been to allow communication with those at sea. He achieved the first trans-Atlantic radio signal in 1901. Crystal radio receivers were first built around 1900, and used crystalline minerals to detect radio signals. 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, communication, communications, crystal receiver, equipment, historical, history, history of science, marconi apparatus, marconi crystal receiver, monochrome, number 31, radio, receiver, technological, technology, telecommunication, telecommunications, the march of commerce, the pageant of america, type 31, us, wireless

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