Birdwatch Note Rating
2024-03-19 11:48:56 UTC - HELPFUL
Rated by Participant: F82C778A4B306674BC7A6549776837809CD5E05851527BCBCABDEF47A4F6244B
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Original Note:
First reports of contrails were shortly after World War I when aircraft were finally able to reach the altitudes required for contrail formation. Early contrail formation was observed during the flight of the pilot Zeno Diemer in 1919, when he reached altitudes of 30,500 ft. https://www.globe.gov/web/s-cool/home/observation-and-reporting/contrails/history-of-contrails-and-contrail-research2 https://www.space.com/what-are-contrails
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