Electrical spark. 19th-century illustration of a photograph taken of a spark from the positive pole of an electrode. This illustration is from 'Physique Populaire' (Emile Desbeaux, 1891). | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3373 px × 5189 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |