Incandescent light bulb filament. Glowing tungsten filament (centre) inside an incandescent light bulb. A light bulb produces light from a heated tungsten filament,which glows as an electric current is passed through it | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / MARK SYKES |
Bildgröße: | 3798 px × 4860 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |