It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by Uncinus
Originally posted by CherubBaby
So in your opinion vertical trails might look like this,,
No, if there was a vertical trail, it's always going to look vertical, because every part of it is the same distance from you.
It's like telephone poles vs. a road. The road can look like it's going at all kinds of angles, but the telephone poles will always be straight up. Consider this photo of a road and some telegraph poles and wires:
The road and the wires are horizontal. The poles are vertical. The poles will always look vertical no matter which angle you look at them from. But the road and the wires here are at all kinds of angles. The wires on the left are at 45 degrees, the white line on the road on the right is going nearly straight up. But it's all just perspective. If you stood over the line, or under the wire then they would appear vertical.
Originally posted by CherubBaby
Cherub---- Your picture is a no brain er. That trail is not dipping due to the curve of the distant horizon. Are we diluted now to searching for "Rabbits In The Hat"? btw for a trail to dip from the curvature of the earth that trail would have to be 50-100 miles wide or more. Can get back to WHY instead of WHAT IF?
Originally posted by CherubBaby
reply to post by waynos
Zoom crop? Is that what the pics of the op are? Zoom crops? If I am disingenuous then you are prefabricating nonsense in regards to a level debate here
Originally posted by Drunkenparrot
A part of the contrail expands upwards and is swept in another direction by a higher altitude wind, possibly the jet-stream depending on your location.
Originally posted by Uncinus
Originally posted by Drunkenparrot
A part of the contrail expands upwards and is swept in another direction by a higher altitude wind, possibly the jet-stream depending on your location.
More likely a fall-streak, or virga. The contrail is essentially a cirrus cloud, in regions where the humidity is high enough it can accumulate enough ice for the larger crystals to precipitate out, which is known as virga. This falls into SLOWER regions of air, and so gets left behind. It's like a very hight altitude snow shower. it usually evaporates as it falls into drier air.
You would really need a sequence of photos to see what is actually going on here though.