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contrail |
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With jets' condensation trails eliminated from the country's skies, the temperature range days were warmer, nights were cooler was the largest swing in the past 30 years, he discovered. Condensation trails, which are also known as contrails, are formed when airplanes fly at high altitudes, where the air is extremely cold. Just one year ago, for the better part of a week, I was able to look up into the sky for the first time in my life and not see a single aircraft or the condensation trails that some aircraft leave behind, Also, missing was the engine noise that always accompanies these aircraft. |
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