25.2 MB (25.0 MB compressed)
3555 x 2476 pixels
30.0 x 21.1 cm ⏐ 11.8 x 8.3 in (300dpi)
LIBRARY OF CONGRESS / SCIENCE PHOTO LIBRARY LIBRARY OF CONGRESS / SCIENCE PHOTO LIBRARY
Editorial use only.
Marconi wireless school, New York, USA. Students in around 1912 practising to become radio (wireless telegraphy) operators. Italian physicist Guglielmo Marconi (1874-1937) patented his invention in 1897, setting up companies in the UK and the USA and other countries to develop the new technology. This is a school run by the Marconi Wireless Telegraph Company of America. The students are wearing headphones to listen to the incoming signals, and using tap-button operated transmitters to send signals in Morse code. Incoming signals are also recorded as Morse code dots and dashes on ticker tape.
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