Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect. Lighting consists of using both artificial gentle sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or gentle shelves) is usually used as the principle supply of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a significant component of energy consumption in buildings. Proper lighting can improve process efficiency, improve the appearance of an space, or have positive psychological results on occupants.
Indoor lighting is usually achieved using light fixtures, and is a key a part of interior design. Lighting can be an intrinsic component of panorama projects.
With the discovery of fireplace, the earliest type of artificial lighting used to illuminate an space have been campfires or torches. As early as 400,000 BCE, fire was kindled within the caves of Peking Man. Prehistoric people used primitive oil lamps to illuminate surroundings. These lamps have been constructed from naturally occurring supplies reminiscent of rocks, shells, horns and stones, have been full of grease, and had a fiber wick. Lamps sometimes used animal or vegetable fat as fuel. Lots of of these lamps (hole labored 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
. Click here to see all pic