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Originally posted by coyotepoet
Of course there have been contrails as long as there have been planes. My question is whether or not those contrails spread out across the sky and stayed there for hours like "contrails" do today. Of course, your pictures don't show that and so are proof of nothing but the fact that there are contrails, which we already knew. Find me some time lapse photographs showing those trails spreading out across the sky over the course of an hour and then you might have something. Right now all you have are pictures of contrails at a moment in time that may or may not have gone away within minutes of the photo being taken.
Originally posted by coyotepoet
Of course there have been contrails as long as there have been planes. My question is whether or not those contrails spread out across the sky and stayed there for hours like "contrails" do today.
The second German sighting occurred on May 9, 1919, when a pilot flying over Berlin at about 26,000 feet noticed the generation of a cloud stream that extended for about forty miles behind his plane. This stream eventually spread out to form a cloud layer that was about 3,000 feet thick. The pilot saw a similar phenomenon two days later.
www.bbc.co.uk... Short contrails do not produce intricate patterns.
A few months later I witnessed the Battle of Britain taking place over my head in the July, August and September 1940. Being in SE London we had a grandstand view of the titanic struggle going on day aftr day with the intricate patterns of the contrails the most evident witness to the dog fights taking place.
So an airplane at great heights leaves behind it, stretching for endless miles, a visible "wake" composed of ice particles so tiny that they do not fall as snow but remain suspended in the air.
Photo taken by Jerry Cole, combat aerialphotographer in the 390th Bomb Group at Framlingham Air Base in England. He is looking for a print from the original negative he shot around January 1944 or before. It shows contrails of P-47's crossing each other in the background and a B-17 in the foreground.
Daily, for example, hundreds of jet planes crisscross the nation or great parts of it, often leaving fluffy contrails of water vapor, manmade clouds, as a signature of their passage.
Some contrails soon dissapate. Others turn into or are soon followed by high cirruse clouds that can and do influence the earth's heat balance with the sun.
The spreading out of jet contrails into extensive cirrus sheets is a familiar sight. Often, when persistent conditions exist from 25,000 to 40,000ft, several long contrails increase in number and gradually merge into an almost solid interlaced sheet.
Henry Wadsworth Hinkle, hired man down on the farm with Uncle Clarence and Aunt Martha, looked skyward a few days ago and was awed by the multiplicity of "vapor trails," as he called them. That's the old name. Now they are called contrails-short for condensation trails-resulting from the condensation of heat flowing from high-flying jet engines.
Source He didn't follow jets, he followed contrails. You can't follow a short contrail.
A 43-year-old novice sailor said today that he followed jet contrails over the Atlantic to help him navigate after his sextant was smashed six days out of Pymouth, England.
Then there is the matter of cloudiness. The familiar contrails often left by high-flying planes might persist for a long time under some conditions.
Often, after several clear days, high flying jets begin leaving condensation trails in the sky. These "contrails" are the result of the condensation of water vapor that accompanies engine combustion at high altitudes.
He occasionally looked out the window at the earth and noted geographical locations. "We're coming over Europe and I've never seen so many jet plane contrails in my life," he reported
www.pitch.com... Contrails have to be around for a while to be "blown-out".
Shore was no naïf; he recognized the irony of many of his images. One of the cleverest is "U.S. 97, South of Klamath Falls, Oregon, July 21, 1973," which depicts a desolate spot of road where a billboard displays a snowcapped-mountain scene — against actual mountains in the distance. The billboard image seems to emerge from the land itself. Along with a cattle gate and a sky with blown-out contrails, the billboard is a tired and shabby advertisement for America itself.
Originally posted by firecircle
I'm sorry but are you saying that mainstream science is real. Let me run that by you again you are saying that a bunch of people who's livelyhood depends on supporting the given paradigm is real. Let's reitirate that one more time you are trying to debunk observation by quoting the party line- hold on a second.............. hey mary you've got to come and read this!