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(I can't get through at the moment <a href=" http://bridgesventures.com/cheap-tadalafil/ ">generic tadalis</a> Patrick Smith, a pilot, also dismisses the theory in his book about air travel, Cockpit C) |
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| − | + | I can't get through at the moment <a href=" http://bridgesventures.com/cheap-tadalafil/ ">generic tadalis</a> Patrick Smith, a pilot, also dismisses the theory in his book about air travel, Cockpit Confidential. “Contrails are formed when humid jet exhaust condenses into ice crystals in the cold, dry, upper-level air it’s not unlike the fog that results when you exhale on a cold day,” he says. “Contrails are clouds, you could say. Water vapor, strange as it might sound, is a byproduct of the combustion within jet engines, which is where the humidity comes from. Whether a contrail forms is contingent on altitude and the ambient atmospheric makeup - mainly temperature and something known as vapour pressure.” | |
Revision as of 18:07, 17 September 2014
I can't get through at the moment <a href=" http://bridgesventures.com/cheap-tadalafil/ ">generic tadalis</a> Patrick Smith, a pilot, also dismisses the theory in his book about air travel, Cockpit Confidential. “Contrails are formed when humid jet exhaust condenses into ice crystals in the cold, dry, upper-level air it’s not unlike the fog that results when you exhale on a cold day,” he says. “Contrails are clouds, you could say. Water vapor, strange as it might sound, is a byproduct of the combustion within jet engines, which is where the humidity comes from. Whether a contrail forms is contingent on altitude and the ambient atmospheric makeup - mainly temperature and something known as vapour pressure.”