Lighting or illumination is the deliberate use of light to achieve a sensible or aesthetic effect. Lighting contains the use of both synthetic light sources like lamps and lighting fixtures, as well as natural illumination by capturing daylight. Daylighting (utilizing windows, skylights, or light shelves) is sometimes used as the primary supply of light throughout daytime in buildings. This may save energy in place of utilizing synthetic lighting, which represents a serious part of energy consumption in buildings. Proper lighting can improve process performance, enhance the appearance of an area, or have constructive psychological results on occupants.
Indoor lighting is normally completed utilizing lighting fixtures, and is a key part of inside design. Lighting can be an intrinsic part of panorama projects.
With the discovery of fire, the earliest type of synthetic lighting used to illuminate an area have been campfires or torches. As early as 400,000 BCE, fireplace was kindled within the caves of Peking Man. Prehistoric people used primitive oil lamps to illuminate surroundings. These lamps have been constructed from naturally occurring materials equivalent to rocks, shells, horns and stones, have been full of grease, and had a fiber wick. Lamps usually used animal or vegetable fats as fuel. Hundreds of these lamps (hollow worked stones) have been found within the Lascaux caves in trendy-day France, relationship to about 15,000 years ago. Oily animals (birds and fish) have been also used as lamps after being threaded with a wick. Fireflies have been used as lighting sources. Candles and glass and pottery lamps have been also invented
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