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A light pillar or ice pillar is an atmospheric optical phenomenon in which a vertical beam of light appears to extend above and/or below a light source. The effect is created by the reflection of light from tiny ice crystals that are suspended in the atmosphere or that compose high-altitude clouds (e.g. cirrostratus or cirrus clouds). [1]
The history of electric light is well documented, [11] and with the developments in lighting technology the profession of lighting developed alongside it. The development of high-efficiency, low-cost fluorescent lamps led to a reliance on electric light and a uniform blanket approach to lighting, but the energy crisis of the 1970s required more design consideration and reinvigorated the use of ...
A street light, light pole, lamp pole, lamppost, streetlamp, light standard, or lamp standard is a raised source of light on the edge of a road or path. Similar lights may be found on a railway platform .
[2] [3] An account of the monastical church of Durham, written in 1593, says " Also there is standinge in the south pillar of the Quire doore of the Lanthorne, in a corner of the said pillar, a four-squared STONN, which hath been finely wrought, in every square a large fine Image, whereon did stand a four- square stone above that, which had ...
Tribute in Light as seen from Jersey City in 2020 The Pentagon's Tribute in Light seen from the White House in 2021 Tribute in Light as seen from Brooklyn in 2014. The Tribute in Light is an art installation created in remembrance of the September 11 attacks. [1]
HID lamps are typically used when high levels of light over large areas are required, and when energy efficiency and/or light intensity are desired. These areas include gymnasiums, large public areas, warehouses, movie theatres, football stadiums, [9] outdoor activity areas, roadways, parking lots, and pathways. More recently, HID lamps have ...
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