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20 km tall dust devil
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April 10th 12, 11:41 PM posted to rec.aviation.soaring
Bob
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20 km tall dust devil
http://www.sciencenews.org/view/gene...0%99_ surface
Space exploration can be interesting sometimes. BIG lift on Mars!
Some of our recent lousy lift in competitions could use a bit of this
here on Earth. Hang on! Vario is pegged!
Bob
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