Ship's radio. At left is part of the tuning apparatus. At right,is the detector and the radio transmission controls and coils. Radio technology was developed in the 1890s,with the range of broadcasts increasing as the technology and antenna designs improved. The first ship-to-shore radio distress signal was made in 1899. Photograph published in 'La Telegraphie Sans Fil' (Wireless Telegraphy,1914),by the French geophysicist Alphonse Berget (1860-1934) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 6622 px × 3198 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |