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our planet at night
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Our Planet At Night

As artificial lighting has improved, especially after the Industrial Revolution, night time activity has increased and become a significant part of the economy in most places. Many establishments, such as nightclubs, bars, convenience stores, fast-food restaurants, gas stations, distribution facilities, and police stations now operate 24 hours a day or stay open as late as 1 or 2 a.m. Even without artificial light, moonlight sometimes makes it possible to travel or work outdoors at night. The phrase "The night is young" refers to the period when the sun is below the horizon and not the period before midnight.
Cultural aspects
Night is often associated with danger and evil, because of the psychological connection of night's all-encompassing darkness to the fear of the unknown and darkness's obstruction of a major sensory system (the sense of sight). Humans are and had been daylight creatures for at least several million of years, and nighttime is naturally associated with the vulnerability and danger for human physical survival. Criminals, animals, and other potential dangers can be concealed by darkness. Midnight has a particular importance in human imagination and culture.

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Filename:454935.jpg
Album name:Earth & Universe
Rating (1 votes):55555
Keywords:#our #planet #night
Filesize:37 KiB
Date added:Feb 13, 2012
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