Mick West said:Well smoke is essentially a "fine powder", and it creates skywriting that looks initially like a contrail. But you can't make the mile wide and 50 mile long trails we see. And something that actually starts out as a powder (like in the powder contrail generator) would probably have a particle size too large to stay up very long. But then I've never seen a trail of powder as far as I know. Maybe there's some aerial application that uses powder?
A current CT claim is that it is "nano-particles" which are being "sprayed" an it is that which creates what WE call contrails, which THEY call "chemtrails". It got me wondering whether that has any merit. Can the mere introduction of condensation nuclei trigger a contrail?
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