Hermann Ludwig Ferdinand von Helmholtz, German physicist and physiologist, 1907. The inventor of the ophthalmoscope (1850), Helmholtz (1821-1894) was distinguished in a number of fields including mathematics and mathematical and experimental physics. Obverse of a commemorative medal struck to mark the International Physiological Congress in 1907. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 4223 px × 4135 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |