Tennessee proposes bill forbidding the release of particles/chemicals in the atmosphere, like cloud seeding. BBC publishes attack article denying cloud seeding exists, portraying it as 'chem-trail' bill, while repeating insults about Bigfoot/conspiracies.

submitted by SoCo from (bbc.com)

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[–]In-the-clouds 5 insightful - 2 fun5 insightful - 1 fun6 insightful - 2 fun -  (2 children)

It's just condensed water vapor, they say.

What would be the explanation for why an aircraft would suddenly stop producing a trail mid-flight? Doesn't it look like their chemical load was depleted? Or someone pushed the button to turn it off?

[–]ID10T 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

Contrails are the product of atmospheric conditions, the lack of which will cause them to stop. This article has a pretty good explanation: https://www.bbc.com/future/article/20220823-what-makes-up-a-planes-contrails

"Three things are needed for them to form: water vapour, cool air and particles on which the water vapour can condense. Water vapour is produced by planes as the hydrogen in its fuel reacts with oxygen in the air. In cold conditions (typically below around -40C (-40F)) it can condense, typically on the soot particles also emitted from aircraft engines, to a fog of droplets, which then freeze to form ice particles. The process broadly resembles frozen breath on a cold winter's day, says Schumann."

[–]Questionable 2 insightful - 2 fun2 insightful - 1 fun3 insightful - 2 fun -  (0 children)

Amazing! Question! Why does one engine stop producing vapor before the other one? How come it's so sudden on such a clearly humid day?