Lighting or illumination is the deliberate use of sunshine to realize a sensible or aesthetic effect. Lighting consists of the use of both artificial 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 primary supply of sunshine during daytime in buildings. This may save power rather than using artificial lighting, which represents a serious element of power consumption in buildings. Proper lighting can improve activity efficiency, improve the looks of an area, or have positive psychological effects on occupants.
Indoor lighting is usually achieved using lighting fixtures, and is a key a part of interior design. Lighting can also be an intrinsic element of landscape projects.
With the invention of fireplace, the earliest form of artificial lighting used to illuminate an area have been campfires or torches. As early as 400,000 BCE, fire was kindled in the caves of Peking Man. Prehistoric individuals used primitive oil lamps to illuminate surroundings. These lamps have been comprised of naturally occurring supplies equivalent to rocks, shells, horns and stones, have been full of grease, and had a fiber wick. Lamps typically used animal or vegetable fats as fuel. A whole bunch of these lamps (hole labored stones) have been found in the Lascaux caves in trendy-day France, courting 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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