Lighting or illumination is the deliberate use of light to realize a practical or aesthetic effect. Lighting includes using both artificial mild sources like lamps and lighting fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or mild cabinets) is typically used as the principle supply of light during daytime in buildings. This may save vitality in place of using artificial lighting, which represents a major part of vitality consumption in buildings. Correct lighting can enhance activity efficiency, improve the appearance of an area, or have positive psychological effects on occupants.
Indoor lighting is usually accomplished using lighting fixtures, and is a key part of inside design. Lighting will also be an intrinsic part of landscape projects.
With the discovery of fire, 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 within the caves of Peking Man. Prehistoric individuals used primitive oil lamps to illuminate surroundings. These lamps have been produced from naturally occurring materials equivalent to rocks, shells, horns and stones, have been crammed with grease, and had a fiber wick. Lamps sometimes used animal or vegetable fat as fuel. A whole bunch of these lamps (hole labored stones) have been found within the Lascaux caves in fashionable-day France, dating 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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