Electric torch. Simulated X-ray of an electric torch. It contains three batteries (across centre) for supplying electrical power to the bulb. This bulb (centre left) is at the centre of a reflector,a bowl-shaped (parabolic) mirror that reflects light from the bulb and throws it forward,focusing it as a narrow beam of light for better visibility. The switch to turn the torch on and off is between the bulb and the battery compartment | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / MARK SYKES |
Bildgröße: | 5071 px × 3373 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |