Thermopile. 19th century illustration of a Gulcher thermopile, an electronic device that converts thermal energy into electrical energy. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Bildagentur-online / TH Foto |
Taille de l’image : | 5166 px × 3444 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |