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dust devil |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.06 sec. |
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dust devil: see whirlwind whirlwind, revolving mass of air resulting from local atmospheric instability, such as that caused by intense heating of the ground by the sun on a hot summer day. ..... Click the link for more information. . dust devil [′dəst ‚dev·əl] (meteorology) A small but vigorous whirlwind, usually of short duration, rendered visible by dust, sand, and debris picked up from the ground; diameters range from about 10 to 100 feet (3 to 30 meters), and average height is about 600 feet (180 meters). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Dust devils dance like whirling dervishes not far from our camp, driven by rising thermals. New research suggests that those electric fields help the whirlwind lift material off the ground, enabling dust devils to pump enough dust into Earth's atmosphere to possibly affect climate (SN: 9/29/01, p. He said this technology might also have an application to flight on Mars where dust devils have been observed. |
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