Thomas Edison's generator for electric light at his home at Menlo Park, New Jersey, USA, 1879. Behind the doors is the 80 hp engine. The two vignettes (top) are Edison's improved form of JW Trowbridge's electric dynamometer, and Lord Kelvin's mirror galvanometer. From Scientific American. (New York, 1879). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 2686 px × 3892 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |