Lighting or illumination is the deliberate use of light to realize a practical or aesthetic effect. Lighting contains using both synthetic light sources like lamps and lighting fixtures, as well as pure illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is usually used as the main supply of light throughout daytime in buildings. This will save energy in place of using synthetic lighting, which represents a significant component of energy consumption in buildings. Correct lighting can improve process performance, enhance the looks of an space, or have constructive psychological results on occupants.
Indoor lighting is usually achieved using lighting fixtures, and is a key a part of inside design. Lighting can also be an intrinsic component of panorama projects.
With the invention of fireside, the earliest form of synthetic lighting used to illuminate an space have been campfires or torches. As early as four hundred,000 BCE, hearth was kindled within the caves of Peking Man. Prehistoric people used primitive oil lamps to illuminate surroundings. These lamps have been constituted of naturally occurring materials comparable to rocks, shells, horns and stones, have been filled with grease, and had a fiber wick. Lamps usually used animal or vegetable fats as fuel. A whole lot of these lamps (hollow worked stones) have been discovered within the Lascaux caves in modern-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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