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Chemicals sprayed on Yorkshire people today

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Author Topic: Chemicals sprayed on Yorkshire people today  (Read 1589 times)
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seneca bond
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« on: September 20, 2011, 12:27:39 pm »

OK, lets discuss this further, can I ask you a question? I would like an answer too. Look at this picture, I have circled a plane in red in the far distance. Why hasn't it got a contrail like the other planes? Also, the big fat trail on the left, it comes to an end where I have marked in blue and red. How can a contrail come to a sudden end? Did the plane turn its engines off or disappear?

contrails and threir distant relatives vortex plumes have to have the right conditions. Atmospheric pressure, temperature and so on-for insdtance the ammount of moisture in the atmosphere and so on. It's perfectly feasible and quite common for them to stop and start-a minor alteration to altitude, or entry into a band of different atmospheric atmospheric pressure, even a change to the settings on an aircraft's engines.

High altitudes equal high winds, it's normal qand very common for con trails to disperse this way.

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