Johann Philipp Reis (1834-1874),German inventor of an early telephone. Reis built a prototype telephone in 1860,but he found it difficult to interest people in his invention. It was demonstrated in Germany in 1862 and in the USA in 1872. The telephone Reis had invented was rudimentary and only transmitted sound faintly. The practical development of the telephone was achieved by others,such as Alexander Graham Bell. A monument was erected in 1878 to honour the work done by Reis on his telephone. Artwork from the eighth volume (second period of 1891) of the French popular science weekly 'La Science Illustree' | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4169 px × 5043 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |