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those planes that leave a trail in the sky...

L

Lorax

Golden Member
you know, when you look up into the sky on a clear day, and you see a far off plane leaving a vapor trail. what are these, really?

as a kid i used to think they were rockets. now i know better, but i don't really know what they are.

i'm thinking jet plane.
 
ah thanks, how come it seems like some of the planes are going upwards then? do they really climb at such a steep angle?
 
now you know.

oh and not just jets makes contrails. watch some WWII footage of bombers on their way to germany and you will see thousands of contrails.
 
Originally posted by: Lorax
ah thanks, how come it seems like some of the planes are going upwards then? do they really climb at such a steep angle?
Click to expand...

they are not going up. they are flying straight and level at their cruising altidude.
 
When I worked at NRL my office mate was doing research on contrails. They are actually pretty interesting and there is now research showing that they may actually lead to cloud formation in some cases I think.
 
Originally posted by: Linflas
When I worked at NRL my office mate was doing research on contrails. They are actually pretty interesting and there is now research showing that they may actually lead to cloud formation in some cases I think.
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i remember a Mr. Wizard segment on how they lead to cloud formations.

Mr. Wizard FTW
 
Originally posted by: Lorax
you know, when you look up into the sky on a clear day, and you see a far off plane leaving a vapor trail. what are these, really?

as a kid i used to think they were rockets. now i know better, but i don't really know what they are.

i'm thinking jet plane.
Click to expand...

They are the ones flushing their tiolets. OH FORGOT Watch out for the frozen turds!
 
Originally posted by: WHAMPOM
Originally posted by: Lorax
you know, when you look up into the sky on a clear day, and you see a far off plane leaving a vapor trail. what are these, really?

as a kid i used to think they were rockets. now i know better, but i don't really know what they are.

i'm thinking jet plane.
Click to expand...

They are the ones flushing their tiolets. OH FORGOT Watch out for the frozen turds!
Click to expand...

The frozen turds are a bluish color from the stuff they put in the septic system on airplanes.
 
Originally posted by: Lorax
you know, when you look up into the sky on a clear day, and you see a far off plane leaving a vapor trail. what are these, really?

as a kid i used to think they were rockets. now i know better, but i don't really know what they are.

i'm thinking jet plane.
Click to expand...
Text

 
Originally posted by: Rastus
Chemtrails.
Click to expand...


From the link: "Possibilities include atmospheric and weather modification and biowarfare. Many theorize that it s part of a clandestine operation to implement the New World Order (NWO) by eliminating society s "useless eaters" and the infirm and/or to reduce the population to a support level for the "elite"."

*sigh*
 
Originally posted by: zanieladie
Originally posted by: Rastus
Chemtrails.
Click to expand...


From the link: "Possibilities include atmospheric and weather modification and biowarfare. Many theorize that it s part of a clandestine operation to implement the New World Order (NWO) by eliminating society s "useless eaters" and the infirm and/or to reduce the population to a support level for the "elite"."

*sigh*
Click to expand...

morons.
 
Originally posted by: Lorax
you know, when you look up into the sky on a clear day, and you see a far off plane leaving a vapor trail. what are these, really?

as a kid i used to think they were rockets. now i know better, but i don't really know what they are.

i'm thinking jet plane.
Click to expand...


I used to think they were rockets too when I was a kid. At that age, I never really considered that the trail I was seeing wasn't vertical. Kind of disappointing to eventually find out they were just from airplanes, gradually increasing their altitude.
 
Contrails actually cool the earth's surface by blocking the amount of light and UV that reaches the Earth's surface....this is called Global Dimming. When 9/11 caused all the planes in the US to be grounded, it was noted that there was a sharp increase in average temp in the US and this was the first time there had ever been such a severe change....because it wasn't just in one city or state. So it goes to show that Global warming is actually worse than what we originally thought.....so break out your sun tan lotion and smoke em if you got em.
 
Originally posted by: jtvang125
Why do some planes make it while others don't? Is it dependent on altitude and weather?
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It's dependent on altitude and contrast of temp of the exhaust and air at a given altitude. Increased moisture can cause them at lower altitudes....when there is moisture in the air, the contrails will seem more fluffy...if it's drier, they'll be a lot smaller/finer.
 
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