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Originally posted by Imagewerx
The mysterious black beams are contrail shadows on the clouds below.
You'll find that shadows aren't the product of a secret military operation but have been part of nature since our sun first burnt in the sky.
By the way I've been looking at the sky for over 40 years now (I had quick look this morning) and see this quite often and don't find anything to lose sleep over.edit on 26-2-2012 by Imagewerx because: (no reason given)
Originally posted by DaTroof
reply to post by Kester
Did you see the aircraft that left this trail?
I thought at first it could be from a fire, but the smoke would have disbursed, and I see no signs of that.
The black beam went ahead of a white trail many miles into the distance.
Originally posted by wigit
Those black beams are shadows and that's a great video of one. I have some pics of them but that beats them all.
They used to puzzle me too but they're easily explained.
black beam shadowsedit on 26-2-2012 by wigit because: (no reason given)
Originally posted by Chadwickus
reply to post by Kester
Did they look like any of the pics in this LINK?
Originally posted by Kester
For a few minutes this morning I also saw a huge black beam running East West.
Originally posted by wigit
What was different about what you saw that's missing from the pics in that link? They're good examples of dead straight black beams in a clear blue sky.
Originally posted by Uncinus
It's conceptually a difficult thing to wrap your head around. Took me a while.
Originally posted by Kester
Originally posted by Uncinus
It's conceptually a difficult thing to wrap your head around. Took me a while.
What's difficult to understand is how a beam stretching into the far distance at altitude could be described as a volumetric shadow.