Incandescent light bulbs with bayonet fittings. An electrical current passes through a thin filament inside the glass bulb,heating the filament until it produces light | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Watkins, Emmeline |
Bildgröße: | 3375 px × 5300 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |