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Chemtrails?

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Contrails or Chemtrails
Contrails-just water vapour from jets. 77%  77%  [ 20 ]
Chemtrails-they are up to something 23%  23%  [ 6 ]
Total votes : 26

glebel
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21 Oct 2015, 9:35 am

beakybird wrote:
Fnord wrote:
Contrails: Condensation trails formed behind jet airplanes when they burn fuel in the upper troposphere where temperatures are very low and the condensation droplets rapidly freeze into ice crystals. Contrails form when water vapor in the exhaust from jet-engines freezes high in the troposphere where airliners cruise; OR when fuel containing hydrogen is burned, and then combined with oxygen in the air to form water vapor. If the ambient air is dry, contrails will evaporate almost immediately. The ambient air must be "close to saturation with water" for a condensation trail to form.


water vapor dissipates rather quickly. It does not spread slowly across the sky over the course of hours turning the sky a hazy sorta greyish blue. Regular passenger planes also do not fly in intentional criss-cross patterns across the sky for hours

They do if you're near two or more airports. I see criss-crossing contrails all the time where I live. Edwards Air Force Base is about 70 miles east of me, and LAX is over 100 miles to the south-west and I still see this.


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Nambo
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22 Oct 2015, 5:53 am

glebel wrote:
beakybird wrote:

water vapor dissipates rather quickly. It does not spread slowly across the sky over the course of hours turning the sky a hazy sorta greyish blue. Regular passenger planes also do not fly in intentional criss-cross patterns across the sky for hours

They do if you're near two or more airports. I see criss-crossing contrails all the time where I live. Edwards Air Force Base is about 70 miles east of me, and LAX is over 100 miles to the south-west and I still see this.


If you look at the pictures in the videos I have posted, you will see the trail of one aircraft that lays a trail turns around leaving a "U" then fling back again across the same area then turning again, etc etc.
I think Beakybird was referring to such.



blauSamstag
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22 Oct 2015, 7:36 pm

beakybird wrote:
Fnord wrote:
Contrails: Condensation trails formed behind jet airplanes when they burn fuel in the upper troposphere where temperatures are very low and the condensation droplets rapidly freeze into ice crystals. Contrails form when water vapor in the exhaust from jet-engines freezes high in the troposphere where airliners cruise; OR when fuel containing hydrogen is burned, and then combined with oxygen in the air to form water vapor. If the ambient air is dry, contrails will evaporate almost immediately. The ambient air must be "close to saturation with water" for a condensation trail to form.


water vapor dissipates rather quickly. It does not spread slowly across the sky over the course of hours turning the sky a hazy sorta greyish blue. Regular passenger planes also do not fly in intentional criss-cross patterns across the sky for hours


Clouds are made of water vapor. Man-made aircraft routinely fly at altitudes similar to clouds.

A single passenger aircraft does not criss-cross for no reason all day, but an airport is largely just a gas station for vehicles that fly. They come from every direction and follow whatever pattern the tower tells them to when landing or taking off.

Military bases fly whatever they feel like, near as i can tell. Those jets can cover a lot of territory in a short time and who am i to say where they are supposed to be going?

I live not far from a large civilian airport, several small civilian airports, and a very large air force base. I see a lot of contrails, and can't remember not seeing them. I've watched civilian and military aircraft make them.



Fnord
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22 Oct 2015, 7:46 pm

beakybird wrote:
Fnord wrote:
Contrails: Condensation trails formed behind jet airplanes when they burn fuel in the upper troposphere where temperatures are very low and the condensation droplets rapidly freeze into ice crystals. Contrails form when water vapor in the exhaust from jet-engines freezes high in the troposphere where airliners cruise; OR when fuel containing hydrogen is burned, and then combined with oxygen in the air to form water vapor. If the ambient air is dry, contrails will evaporate almost immediately. The ambient air must be "close to saturation with water" for a condensation trail to form.
Water vapor dissipates rather quickly. It does not spread slowly across the sky over the course of hours turning the sky a hazy sorta greyish blue.
Correct. It usually freezes first, forming ice crystals that spread slowly across the sky.

beakybird wrote:
Regular passenger planes also do not fly in intentional criss-cross patterns across the sky for hours
Correct, again. However, training flights often fly back and forth over the same area. So do mapping flights. Such flights often use planes that look similar to passenger jets from five miles up ... which is also too far to identify anything coming out of their engines without highly specialized and finely-calibrated instruments, yet there are ignorant people who believe that they can tell the chemical composition of a vapor trail with just a single glance.

:roll:



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22 Oct 2015, 8:41 pm

In the case of this conspiracy theory, I just don't think there's a shooter behind the grassy knoll.


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