Wireless officer sending a message by morse code from on board a ship, 1916. Wireless telegraphy at sea was made possible by the type of sending and receiving station built by Marconi at Poldhu in Cornwall in 1901. Cover of All about Discoveries and Inventions, a book by F A Talbot. (London, 1916). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Ann Ronan Picture Library |
Bildgröße: | 2781 px × 3767 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |