Contrails from a passing jet form an aircraft’s length behind the exhaust. They look like two braids hanging from the head of a rider, fraying at the ends in the breeze. If I had a mind to do it, I could tell from the length of the contrail how long the air currents take to recover from the passing of a jet.
Saturday’s sky
Don't hold your breath 
If you had a mind then you could calculate . O R if you made time for it you would have the answer. Brainy or brainless? ( Ducking now.)
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If you put your “mind to it,” you could be a published poet! I like how succinct your writing is.
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Thank you. I think I’ll pass. I like my mindless days 🙂
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