Contrails are long thin artificial (man-made) clouds that sometimes form behind aircraft. Their formation is most often triggered by the water vapor in the exhaust of aircraft engines, but can also be triggered by the changes in air pressure in wingtip vortices or in the air over the entire wing surface. Like all clouds, contrails are made of water, in the form of a suspension of billions of liquid droplets or ice crystals.
Depending on the temperature and humidity at the altitude the contrail forms, they may be visible for only a few seconds or minutes, or may persist for hours and spread to be several miles wide. The resulting cloud forms may resemble cirrus, cirrocumulus, or cirrostratus. Persistent spreading contrails are thought to have a significant effect on global climate.
While this might be true, Chemtrails are made up of known aluminum and we really do not know the effects it has on our health, yet we see these white lines in the sky daily that stay all day.Watch this documentary to learn more.
http://www.youtube.com/watch?v=XREsFIMX7g4
CONTRAIL:
CHEMTRAIL:
Contrail information from Wikipedia.
No comments:
Post a Comment