Lighting or illumination is the deliberate use of light to achieve a sensible or aesthetic effect. Lighting includes the usage of both artificial mild sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (utilizing windows, skylights, or mild cabinets) is sometimes used as the primary source of light during daytime in buildings. This may save energy in place of utilizing artificial lighting, which represents a serious part of energy consumption in buildings. Correct lighting can enhance task performance, improve the looks of an space, or have positive psychological results on occupants.
Indoor lighting is usually accomplished utilizing light fixtures, and is a key part of interior design. Lighting may also be an intrinsic part of landscape projects.
With the discovery of fire, the earliest type of artificial lighting used to light up an space 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 light up surroundings. These lamps have been constructed from naturally occurring materials similar to rocks, shells, horns and stones, have been full of grease, and had a fiber wick. Lamps typically used animal or vegetable fat as fuel. Tons of of these lamps (hollow labored stones) have been discovered 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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