how do mirages form

Greetings StealGoalzz,
In short Mirages form because of a sudden shift in air density within
the atomosphere.

"On a sunnier day, the light heading straight toward you acts just
like it usually does -- it doesn't move through different layers of
air density, so it doesn't bend much. But some of the light that would
normally hit the ground actually bends in midair because it moves from
the cooler, denser air level into the hotter, less dense air right
above the ground."

http://science.howstuffworks.com/mirage2.htm

A more detailed explanation (with lots of nice pictures) can be found at 

How Stuff Works "How Mirages Work"
http://science.howstuffworks.com/mirage.htm

Other sites containing information on mirages that you might be interested in...

Wikipedia - Mirage
http://en.wikipedia.org/wiki/Mirage

Atmospheric Optical Mirages
http://www.geocities.com/TheTropics/Beach/7002/mirage.htm

Artic Mirages
http://www.gi.alaska.edu/AtmosSci/Links.mainpage/optical_effects/opt01.arctic.mirages.html

Have a great evening and thank you for using Google Answers!

Best,
djbaker-ga

Search Strategy:

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thanks its perfect