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File:Dust Devils.jpg

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Description Dust devils form when extremely hot air near the surface rises quickly through a small pocket of cooler low pressure air above it. If conditions are just right, the air may begin to rotate. As more hot air rushes in toward the developing vortex to replace the air that is rising, the spinning effect becomes further intensified and self-sustaining. A dust devil, fully formed, is a funnel-like chimney through which hot air moves both upwardly and circularly. Eventually the hot air will cool and descend back through the center of the vortex. This cool air returning acts as a balance against the spinning hot air outer wall and keeps the system stable. (from <a href="http://en.wikipedia.org/wiki/Dust_devils">wikipedia</a>)
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Source originally posted to Flickr as Dust Devils Dance
Author Steve Jurvetson
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This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 24 September 2009, 11:59 by Bidgee. On that date, it was confirmed to be licensed under the terms of the license indicated.
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current11:59, 24 September 2009Thumbnail for version as of 11:59, 24 September 20092,901 × 2,736 (3.34 MB)Flickr upload bot (talk | contribs)Uploaded from http://flickr.com/photo/44124348109@N01/888064641 using Flickr upload bot

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