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The projector is normally set at 90°, although 71° 31' may be used, in relation to the terrain. The projector consists of a 430-watt incandescent bulb set in a weatherproof housing. Inside the housing are two mirrors; the first, above the bulb, reflects the light downwards to the second mirror, that then reflects the light upwards to the ...
A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction. It is usually constructed so that it can be swiveled about.
Sky Trackers is a 26-part science-based [1] Australian children's television adventure series, and a stand-alone children's television movie of the same name, which feature the adventures of children who live at space-tracking stations in Australia.
In 1897, Carlisle & Finch offered a hand-powered dynamo, capable of lighting a ten candle power, ten volt incandescent bulb, or to run several electrical toys simultaneously. They also offered a water-powered version, which produced a similar amount of electrical power from a water faucet supplying 50 psi (340 kPa) of pressure and could be used ...
This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...
15 kW xenon short-arc lamp used in IMAX projectors High-speed, slow-motion video of a xenon flashtube recorded at a speed of 44,025 frames per second.. A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.
The 200 cm searchlight was deployed at the center of a triangle formed by the 150 cm searchlights. The smaller searchlights deployed at a distance of about 2.5 kilometres (1.6 mi) from the larger central "master" searchlight. The master searchlight would find the target, and the 150 cm lights would cone the target, providing solid triangulation.
Searchlight Control, SLC for short but nicknamed "Elsie", was a British Army VHF-band radar system that provided aiming guidance to an attached searchlight.By combining a searchlight with a radar, the radar did not have to be particularly accurate, it only had to be good enough to get the searchlight beam on the target.