Illustration of Faraday showing his experiments to his wife. From 'Beginnings and Future of the Arc Lamp ' by S M Hamill, from The Engineering Magazine, Volume VII, 1894. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Photostock-Israel |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |