Andre-Eugene Blondel (1863-1938),a French physicist who invented the electromagnetic oscillograph,a device that device that could indicate and record electrical quantities,such as the intensity of alternating currents | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source |
Taille de l’image : | 2475 px × 3281 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|