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Date Posted: 08:28:23 01/21/03 Tue
Author: No name
Subject: Re: THE GIANT BUBBLING MIRAGE. EASTERN WASHINGTON DESERT..
In reply to: 's message, "THE GIANT BUBBLING MIRAGE. EASTERN WASHINGTON DESERT.." on 07:59:36 01/21/03 Tue

A mirage is a startling optical atmospheric effect. Though we associate mirages with the illusion of distant water in a desert, the phantom oasis is actually just the simplest example of this bizarre effect.
A mirage is generated by two layers of air at different temperatures. Because cold air is more dense than hot air, the boundary between the layers can refract (bend) light, especially if the light hits the boundary at an extreme angle. The oasis mirage occurs when the air just above the ground gets hot because the ground heats it.
This effect can even cause people to think they see whole cities, houses and skyscrapers. Many of these type of mirages have been documented. Regardless of all the publicity the giant lava lamp recieves, it's state of being is much like a mirage; non-existant.

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