Light bulb. It produces light from a tungsten filament (upper centre),which glows as it is heated by the electric current flowing through it | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Knapton, Chris |
Taille de l’image : | 3258 px × 4529 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |