Illustration of a voltmeter, invented by Danish physicist Hans Christian Oersted (1777-1851). Published in 1869. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Collection Abecasis |
Taille de l’image : | 3980 px × 2412 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |