Sorry, I'm not making it clear. There are both persistent and non-persistent contrails known to exist. One of them dissipates in about a minute. The other lasts indefinitely. Any guesses as to which is which?
Typical contrails are condensation, cold air meeting a hot engine. The same process occurs when you walk into a warm room wearing a pair of glasses after standing in freezing temperatures, your glasses fog up. Condensation.
At altitudes of 50,000 feet, it is -50 degrees and humidity is extremely low. The condensation behind the plane freezes and creates the white trail however, with the humidity being so low, the tiny ice crystals disappear very fast through a process called sublimation. Solid turning to a gas.
If you leave an ice cube in your freezer long enough it will get smaller until it is gone, solid to gas process is sublimation. This is standard physics, and no amount of conjecture can change the laws of physics. It there are persistent lines from an aircraft traveling at 50,000 altitude, there is a solid substance present.
I did and you said it's wrong haha. Persistent contrails and Non-Persistent contrails. The old fashioned kind almost always dissipated at a distance you could see behind the plane therefore they were Non-Persistent contrails. I asked my mom about it when I was a kid. Why are there those white marker lines that disappear going behind the jets sometimes?
Okay, now we are getting somewhere concrete. Roughly when (what decade) do you think these nefarious trails that dont evaporate within seconds first started showing up?
That understanding is wrong, even according to cloud books from as long back as 1957. They can last for hours and sometimes even become clouds.
https://www.youtube.com/watch?v=8D0kX3O0anY
Sorry, I'm not making it clear. There are both persistent and non-persistent contrails known to exist. One of them dissipates in about a minute. The other lasts indefinitely. Any guesses as to which is which?
If you claim there are two different kinds of contrails, go ahead and tell me which is which.
Typical contrails are condensation, cold air meeting a hot engine. The same process occurs when you walk into a warm room wearing a pair of glasses after standing in freezing temperatures, your glasses fog up. Condensation.
At altitudes of 50,000 feet, it is -50 degrees and humidity is extremely low. The condensation behind the plane freezes and creates the white trail however, with the humidity being so low, the tiny ice crystals disappear very fast through a process called sublimation. Solid turning to a gas.
If you leave an ice cube in your freezer long enough it will get smaller until it is gone, solid to gas process is sublimation. This is standard physics, and no amount of conjecture can change the laws of physics. It there are persistent lines from an aircraft traveling at 50,000 altitude, there is a solid substance present.
I did and you said it's wrong haha. Persistent contrails and Non-Persistent contrails. The old fashioned kind almost always dissipated at a distance you could see behind the plane therefore they were Non-Persistent contrails. I asked my mom about it when I was a kid. Why are there those white marker lines that disappear going behind the jets sometimes?
Okay, now we are getting somewhere concrete. Roughly when (what decade) do you think these nefarious trails that dont evaporate within seconds first started showing up?