Lighting or illumination is the deliberate use of light to attain a practical or aesthetic effect. Lighting consists of the usage of both artificial light sources like lamps and light fixtures, as well as pure illumination by capturing daylight. Daylighting (using home windows, skylights, or light shelves) is typically used as the main supply of light throughout daytime in buildings. This could save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can improve job performance, improve the looks of an area, or have constructive psychological results on occupants.
Indoor lighting is often completed using light fixtures, and is a key a 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 have been campfires or torches. As early as four hundred,000 BCE, fireplace was kindled within the caves of Peking Man. Prehistoric people used primitive oil lamps to illuminate surroundings. These lamps have been made out of naturally occurring materials comparable to rocks, shells, horns and stones, have been full of grease, and had a fiber wick. Lamps sometimes used animal or vegetable fats as fuel. Tons of of these lamps (hollow worked stones) have been found within the Lascaux caves in fashionable-day France, relationship to about 15,000 years ago. Oily animals (birds and fish) have been additionally used as lamps after being threaded with a wick. Fireflies have been used as lighting sources. Candles and glass and pottery lamps have been additionally invented
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