Marconi radio apparatus

Numéro d’image : 11904516
Marconi radio apparatus
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
Licence : Droits gérés
Crédit: Science Photo Library / NEW YORK PUBLIC LIBRARY / HUMANITIES & SOCIAL SCIENCES LIBRARY
Taille de l’image : 3519 px × 2480 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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