Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect. Lighting contains the use of both artificial light sources like lamps and lighting fixtures, in addition to pure illumination by capturing daylight. Daylighting (utilizing windows, skylights, or light shelves) is sometimes used as the primary source of light throughout daytime in buildings. This will save power instead of utilizing artificial lighting, which represents a major component of power consumption in buildings. Proper lighting can improve task efficiency, enhance the appearance of an area, or have constructive psychological results on occupants.
Indoor lighting is often achieved utilizing lighting fixtures, and is a key part of inside design. Lighting may also be an intrinsic component of panorama projects.
With the invention of fire, the earliest form of artificial lighting used to illuminate an area had been campfires or torches. As early as four hundred,000 BCE, fireplace was kindled within the caves of Peking Man. Prehistoric individuals used primitive oil lamps to illuminate surroundings. These lamps had been produced from naturally occurring materials such as rocks, shells, horns and stones, had been stuffed with grease, and had a fiber wick. Lamps usually used animal or vegetable fat as fuel. A whole bunch of these lamps (hole worked stones) have been discovered within the Lascaux caves in trendy-day France, relationship to about 15,000 years ago. Oily animals (birds and fish) had been also used as lamps after being threaded with a wick. Fireflies have been used as lighting sources. Candles and glass and pottery lamps had been also invented
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