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#11
October 24th 05, 08:35 PM
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Visible wingtip vortex!
"Bill" wrote in message
... What causes distortions from heatwaves? Is it the differing density of the air? If so, that might start to explain it. Bill Strahan I've never heard any "official" explanation from an expert, but that's been my understanding. Different air density bending light waves differently than the surrounding air. Jim 
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