Light bulb filament,coloured scanning electron micrograph (SEM). An electrical current flows through the tungsten filament (yellow) from the blue wire. The current heats the filament,which glows white hot. The green wire is a support wire. Magnification: x5 when printed at 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 2591 px × 2290 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |