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Theatrical smoke and fog, also known as special effect smoke, fog or haze, is a category of atmospheric effects used in the entertainment industry.The use of fogs can be found throughout motion picture and television productions, live theatre, concerts, at nightclubs and raves, amusement and theme parks and even in video arcades and similar venues.
Before the introduction of FIDO, fog had been responsible for losses of a number of aircraft returning from operations. Often large areas of the UK would be simultaneously fog-bound and it was recommended procedure in these situations for the pilot to point the aircraft towards the sea and then, while still over land, for the crew to bail-out by parachute, leaving the aircraft to subsequently ...
Cirrus clouds and ice fog are made of ice crystals. [ 1 ] [ 16 ] Cirrus clouds are often the sign of an approaching warm front , where warm and moist air rises and freezes into ice crystals. [ 17 ] [ 18 ] Ice crystals rubbing against each other also produces lightning .
Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. [1] [2] Fog can be considered a type of low-lying cloud usually resembling stratus and is heavily influenced by nearby bodies of water, topography, and wind conditions.
Tule fog is a radiation fog, which condenses when there is a high relative humidity (typically after a heavy rain), calm winds, and rapid cooling during the night. The nights are longer in the winter months, which allows an extended period of ground cooling, and thereby a pronounced temperature inversion at a low altitude.
Another way fog forms in deserts occurs when a desert is close to an ocean which has a cold current. When air is heated over desert land and blows towards the cool water in the ocean, it condenses and fog is formed. The cool fog is then blown inland by the ocean breeze. Fog is mainly formed in the early morning or after sunset. [5]
Piccadilly Circus during the Great Smog of London, 1952. Pea soup fog (also known as a pea souper, black fog or killer fog) is a very thick and often yellowish, greenish or blackish fog caused by air pollution that contains soot particulates and the poisonous gas sulphur dioxide.
[2] [3] [4] English examples include smog, coined by blending smoke and fog, [3] [5] and motel, from motor and hotel. [6] A blend is similar to a contraction. On one hand, mainstream blends tend to be formed at a particular historical moment followed by a rapid rise in popularity.
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