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Dictionary.com · The American Heritage® Dictionary
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The condensation trail left behind jet aircrafts are called contrails. Contrails form when hot humid air from jet exhaust mixes with environmental air of low vapor pressure and low temperature. The mixing is a result of turbulence generated by the engine exhaust.
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A JET MADE A SWING VERY LOW OVER OUR HOME,AND, LEFT TWO TRAILS NOT VERY HIGH ABOVE US , WHICH ARE ON OUR 35 mm CAMERA TO BE DEVELOPED . THERE WAS SEVERAL PLANES IN THE AIR AT THAT TIME , WHICH LEFT 5 CONTRAILS AT ONE TIME . OUR SKIES WERE SATURATED VERY HEAVY .
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FRONT PAGE CORE TRANSLATIONS ... Albuquerque August 1999 ... ; The Grand Canyon; Ideal Weather Conditions, March 26, 2005...
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Scientific Studies Regarding Aircraft Contrails and Cloud Formation;Michael Theroux ... CONTRAILS ; by ; 2-15-99; Updates and Links below ... Persistence of contrails is neither an indication that they contain some kind of chemical, nor that it is some kind of spray. As a matter of fact, sailors have known for years to...
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Information and pictures. Chemtrails vs contrails controversy. Government conspiracy theories. ... Black Spheres, Odd-Shaped Objects In Contrails, Disappearing Craft...
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Contrails form through the injection of water vapor into the atmosphere by exhaust fumes from a jet engine. If there is sufficient mixing between the cold upper tropospheric air and the hot exhaust gases to produce a state of saturation, ice crystals will develop.
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What are contrails? ... Where do contrails form? ... Contrails are clouds of ice particles formed around the small particles (aerosols) which are in aircraft exhaust. When these persist after the passage of the plane they are of great interest to researchers. Under the right conditions, clouds initiated by passing aircraft...
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The long thin cloud streaks that dominate the above satellite photograph of Georgia are contrails, cirrus clouds created by airplanes. The exhaust of an airplane engine can create a contrail by saturating the surrounding air with extra moisture.
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The central premise of the claim that contrails are sprayed chemicals is that "normal contrails" dissipate within seconds. Therefore, contrails that persist or expand and blend with others into a haze are not mere water-vapor condensation but are instead composed of some kind of nonevaporating substance.
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