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Originally posted by leaualorin
reply to post by dsm1664
watch this you ignorant and shameless "byp"
Originally posted by leaualorin
reply to post by exroyalnavy
I'm not gonna tire not even a bit with you guys :
a contrail DOES NOT stay in the sky for hours!
ok?....
...Thank you all and I don't really need your answers ; I ALREADY KNOW IT!
edit on 16-2-2011 by leaualorin because: (no reason given)
Originally posted by leaualorin
reply to post by exroyalnavy
I'm not gonna tire not even a bit with you guys :
a contrail DOES NOT stay in the sky for hours!
ok?
IT GOES AWAY IN MINUTES!
SO : when x jets move s..it around ALL THE CONTRAILS FROM THOSE "X" JETS SHOULD DISSAPEAR IN MINUTES AFTER THEIR PASS!
OK THIS TOO?
Well then , maybe you all can explain me why these "so called contrails" keep lurking in the sky , even "TRANSFORM THEMSELVES " IN STRANGE CLOUDS OR THAT MILKY MIST THAT REALLY COVERS THE BLUE OF THE SKY?
Thank you all and I don't really need your answers ; I ALREADY KNOW IT!
edit on 16-2-2011 by leaualorin because: (no reason given)
Originally posted by ZombieJesus
Contrail formation occurs because of two primary reasons(there are other factors, but we'll start with the basics), temperature and relative humidity. Jet engines run on a purified kerosene based fuel, the main emissions being carbon dioxide an di-hydrogen monoxide. At altitude(26,000 feet and above) the air can be, and usually is very cold (-20 celsius and colder). The relative humidity varies, but can be as high as 100%.
As the di-hydrogen monoxide exits the engine, it is supercooled via a process called sublimation. This turns the di-hydrogen monoxide in to ice. If the the relative humidity is high enough, the ice acts as a nucleus for the existing moisture in the atmosphere.
At this point, the condensation that has formed will create a vapor trail. If it is cold enough, the vapor trail will persist into a cirrus cloud, if there is not enough moisture, the vapor trail will evaporate, and dissipate.
Here is the Appleman Chart:
If you go to this site, you can find the atmospheric sounding for your area, and plot them in the graph to see for yourself.
If you find any discrepancies in my explanation, please let me know.
Originally posted by leaualorin
reply to post by dsm1664
watch this you ignorant and shameless "byp"
What in the World Are They Spraying? (Full Length)
www.youtube.com...