posted on May, 31 2011 @ 10:19 AM
Originally posted by Corruption Exposed
I would like an applicable explanation on how humidity in the atmosphere can change so drastically in such a short distance that would cause the
trails to appear and disappear over and over again.
A cloud starts and stops in a very small distance. Some clouds have very well defined edges.
All a cloud is is a region of air where there is so much moisture that the air can't hold it all, so it condenses out into the cloud of tiny water
droplets (or snow/ice), depending on the temperature.
If the sky was even in humidity, you'd just see either blue sky, or a solid sheet of cloud. But you don't. Sometimes you see big clouds, sometimes
little clouds. Sometimes many, sometimes just a few. Sometimes scattered randomly, sometimes in regular patterns and rows.
Now when there are NO clouds, the atmosphere still has the same variation, but just not enough moisture to form clouds by itself. There are still
regions of more or less water, and like the clouds some are big, some are small, sometimes there's lots of them, sometimes just a few. Sometimes the
regions will be random, sometimes in regular patterns. Kind of like invisible clouds.
Then a plane comes alone, flies through those regions, spraying out water in the exhaust, and it reveals those regions, painting in the bits of the
invisible clouds as it flies through them.
edit on 31-5-2011 by Uncinus because: (no reason given)