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.
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.