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Old 14th February 2020, 03:19 AM   #11
PhantomWolf
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Join Date: Mar 2007
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Clouds would curve, but they are too small to see it. A contrail is a long trail that goes from overhead to the horizon. Clouds get smaller and closer to the horizon. It's pretty much the same mechanic, perspective making them smaller and then Earth Curve getting in the way. If you were able to stretch a cloud from the horizon to above you, you'd see the same effect as that of the Contrail.
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