Joseph Wilson Swan, British physicist and chemist, demonstrating electromagnetism, 1889. Swan (1828-1914) was the inventor of bromide paper for photography and of an incandescent light bulb. He is shown here at a Royal Society Conversazione, on 8 May 1889, demonstrating that a metal ring wound with a coil of wire rotates in the Earth's magnetic field when a small electric current is applied. From The Illustrated London News. (London, 1889). (Coloured black and white print). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / HERITAGE IMAGES / THE PRINT COLLECTOR |
Bildgröße: | 3744 px × 4661 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |