
	Where results make sense

Topic: Dust devil

Related Topics

Mars (planet)

Meteorological phenomenon

Tornado

Funnel cloud

Memorial Day tornado outbreak

Tornado myths

Jupiter (planet)

Waterspout

Tropical cyclone

Fire tornado

Lightning

Meteorology

Birmingham Tornado

Emergency Alert System

Cumulonimbus

In the News (Thu 31 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Dust Devils, Alaska Science Forum (Site not responding. Last check: 2007-10-16)
		Dust devils form most frequently in desert areas where the sun beats down on the poorly conducting sand surface.
		And so a dust devil is formed; it is an almost self-sustaining whirlwind that maintains a funnel-like chimney through which hot air moves both upward and circularly.
		Dust devils tend to form in groups; a large dust devil is sometimes seen to have little, shorter-lived devils traveling along behind it.
	www.gi.alaska.edu /ScienceForum/ASF2/227.html (383 words)

	Dust devil - Wikipedia, the free encyclopedia
		Dust devils form as an updraft under sunny conditions during clear to fair weather, rarely coming close to the intensity of a tornado.
		The underlying factor and sustainability of a dust devil is the extreme difference in temperature between the near surface air and atmosphere.
		Dust devils also occur on Mars, and were first photographed by the Viking orbiters in the 1970s.
	en.wikipedia.org /wiki/Dust_devil (1075 words)

	VtM - Fiction: Dust Devil
		Dust Devil had been the only real witch during the Inquisition and he'd used his powers to lead the men of the church to the chalices of innocent blood that damned them.
		Dust Devil's thin lips showed white with rage through his shadow of whiskers, and his eyes were chunks of backlit red glass.
		Dust Devil was still smoking, a fork of lightning struck him and a new head glowed on his shoulders.
	vampirerpg.free.fr /Fiction/Dust-Devil.html (3727 words)

	Dust Devil...Meteoroloo.com
		A dust devil is a rotating updraft, 1000 meters high or more and tens of meters in diameter.
		Dust devils are often observed in times of atmospheric turbulence, especially common in the San Luis Valley of Colorado.
		In 1997, the Mars Pathfinder lander detected a dust devil passing over it.Martian dust devils can be up to fifty times as wide and ten times as high as terrestrial dust devils, and large ones may pose a threat to terrestrial technology sent to Mars.
	www.meteoroloo.com /dustdevil.html (313 words)

	SPACE.com -- Delving into Dust Devils
		The exact physics of martian dust devils remain to be pinned down, since only a handful have been photographed and none have been studied in detail.
		Dust devils are gentler, with winds typically matching freeway speed limits, and they have a completely different origin.
		Dust devils contribute greatly to the global makeup of Mars, which is so dry and dusty that it is sometimes engulfed by global dust storms.
	www.space.com /scienceastronomy/051003_dust_devils.html (759 words)

	Mars Exploration: Multimedia
		Dust devils are spinning columns of wind that move across the landscape, pick up dust, and look somewhat like miniature tornadoes.
		Dust devils are a common occurrence in dry and desert landscapes on Earth, as well as Mars.
		Dust Devil Streaks in Terra Sirenum: A dust devil can be seen in action in southwestern Terra Sirenum near 63°S, 168°W, an area that has seen the activity of so many dust devils that it looks like a plate of dark gray spaghetti.
	mars.jpl.nasa.gov /gallery/duststorms (430 words)

	Spaceflight Now \| Breaking News \| Changes in rainfall patterns affect plants, carbon in U.S.
		Convective air and dust devils are a known hazard for aviation -- up to 10 percent of accidents with light aircraft, sailplanes, helicopters and blimps are caused by gusts associated with these convective winds.
		That is, as puny as Earth's dust devils are by comparison to martian dust devils, if they were on Mars, they would generate long-lived, charged particles powerful enough to trigger electrical discharges in the martian atmosphere.
		Rather than trying to deploy their sensitive instruments where dust devils are seen forming, they will station themselves and their instruments at the chosen location and gather data as individual dust devils sweep through.
	spaceflightnow.com /news/n0205/21dustdevil (1266 words)

	SPACE.com -- Dust Devils Reshape Mars
		Dust devil vortices form when the air is fairly calm and the ground is heated by sunlightthis heats the air immediately above ground.
		All that extra dust on the ground means that the dust devils leave tracks behind them where they have either picked up dust or disturbed the dust lying about on the surface.
		More amazing to us, sometimes the dust devils are so big that you can see them with the wide-angle cameras meaning that they are wide enough to cover a couple football fields and stand several kilometers high.
	www.space.com /scienceastronomy/solarsystem/dust_edgett_010702-1.html (850 words)

	Dust Devils
		Dust devils are often observed in times of atmospheric turbulence, especially common in the San Luis Valley of Colorado.
		Dust devils also have smaller counterparts by the same name that reach only a few meters or tens of meters in height, forming commonly in hot dry weather, most observably in fields or dusty flats, where the soil makes them visible, and which may be shorter-lived.
		Dust devils also occur on Mars, and were first photographed by the Viking orbiters in the 1970s.
	www.crystalinks.com /dustdevils.html (373 words)

	Martian dust devils finally caught on camera
		But dust devils occur only in the midday sunlight, he notes, so it may have simply been a strong breeze that cleaned the rover.
		The two images of the same dust devil show that it was moving at an average speed of 3 metres per second.
		If more pictures are found that show dust devils, it might be possible to gather meaningful statistics on their frequency and duration.
	www.infowars.com /articles/science/martian_dust_devils_on_camera.htm (400 words)

	What is a Dust Devil? - Southland WX
		Dust devils are a common wind phenomenon that occurs over the deserts of southern California.
		Dust devils form in areas of strong surface heating and usually occur under sunny skies and light winds, when the ground can warm the air to temperatures well above the temperatures just above the ground.
		The dust devil, once formed, is a funnel-like chimney through which hot air moves both upward and circularly.
	www.southlandwx.com /dustdevil.html (401 words)

	Dust Devils (Site not responding. Last check: 2007-10-16)
		Dust devils typically occur in open areas where large quantities of air are heated.
		There may even be multiple small dust devils within the mass, but as the rush of air towards the uplifting vortex increases, a single dust devil emerges.
		The edges of this dust devil appear more heavily laden with debris due to the fact that the central region of the rising column is relatively clear of dust.
	www.gc.maricopa.edu /earthsci/imagearchive/dust_devils.htm (461 words)

	JPL.NASA.GOV: Mars Exploration Rovers
		Dust devils often occur when the Sun heats the surface of Mars.
		By comparing the separate images from the rover's different cameras, team members estimate that the dust devils moved about 500 meters (1,640 feet) in the 155 seconds between the navigation camera and hazard-avoidance camera frames; that equates to about 3 meters per second (7 miles per hour).
		The dust devils appear to be about 1,100 meters (almost three-quarters of a mile) from the rover.
	www.jpl.nasa.gov /missions/mer/images.cfm?id=1582 (300 words)

	Spaceflight Now \| Breaking News \| Mars Global Surveyor spots a mid-summer's dust devil
		Dust devils are spinning, columnar vortices of wind that move across the landscape, pick up dust, and look somewhat like miniature tornadoes.
		Usually, such tracks are darker than the surroundings, in this case the light tone might indicate that the dust being removed by the passing dust devil is darker than the surface underneath the thin veneer of dust.
		The shadow cast by the dust devil goes off the edge of the image, but the length shown here (about 1.5 km) indicates that the dust devil was a bit more than 1 km (0.62 mi) in height.
	www.spaceflightnow.com /news/n0105/28dustdevil (570 words)

	Chasing Dust Devils
		Dust devils typically form during late spring and summer and can be found at all latitudes.
		No dust devils have been imaged yet at the Spirit site, Gusev Crater, but mission scientists continue to look in the mid-afternoon for rising, circulating air that might be compared with a dusty pattern on the horizon.
		Martian dust includes magnetic, composite particles, with a mean size of one micron--the equivalent to powdered cement or fluor in consistency.
	www.spacedaily.com /news/mars-dust-04b.html (1151 words)

	NASA on Martian Dust Devils— “They’re Electrified!”
		The luminosity of the apparent discharge activity at the base is compelling and confirms the earlier claim of Electric Universe advocates that the dark tracks left by the tornado-like whirlwinds on Mars are due to electric discharge.
		Scientists exploring Martian dust devils are forced to locate the “cause” of the electrical discharges in solar heating and the resulting mechanical energy of air convection.
		The towering dust devils on Mars help to force the issue because they are too big and too powerful to be explained by the popular idea of mechanical charge separation.
	www.thunderbolts.info /tpod/2006/arch06/060410dustdevils.htm (1163 words)

	Amazon.com: Dust Devil: Video: John Matshikiza,Robert John Burke,Terri Norton,Chelsea Field,Rufus Swart,William ... (Site not responding. Last check: 2007-10-16)
		According to locals, the Dust Devil is a demon, enabling Stanley's abiding interest in world folk religions to weigh heavily in on the plot, especially when the town's witch doctor visits the beyond to unlock mysteries, or when the Dust Devil displays a box containing his victims' fingers.
		Dust Devil is not in any way a perfectly realized film and Stanley describes himself in a DVD interview various ways where censorship, the budget, shooting schedule problems, and other factors, kept this from being quite what he originally intended, even now with this newly reconstructed 2006 version.
		Dust Devil was originally released in a severely edited version by its producers and distributors and with no marketing to speak of, quickly left cinemas and went straight onto video.
	www.amazon.com /Dust-Devil-John-Matshikiza/dp/6302884802 (3109 words)

	Planetary Landscapes
		"Dust Devil" creates a small-scale, dust-filled tornado similar to natural dust devils, spinning, low-pressure vortices that draw up dust from the ground they travel over.
		Dust devils are common on Earth, particularly in deserts and other regions relatively free of obstructions.
		By stopping the vortex, people can observe the particles slowly drifting and settling out of the solution just as real dust particles are swept into the atmosphere by dust devils.
	www.chabotspace.org /vsc/exhibits/planetlands/dustdevil (218 words)

	Field Trip to Mars - Kids - Dust Devils
		The bright dust devil itself does not look like a column because the picture was taken from a camera looking straight down on it.
		Dust devils are spinning, columnar vortices of wind that move across the landscape, pick up dust, and look somewhat like miniature tornadoes.
		When dust devils land in tall grass or fields of growing crops they flatten their stalks in a swirling pattern as they bounce through the field.
	www.kidscosmos.org /kid-stuff/kids-dust.html (674 words)

	BBC NEWS \| England \| Wiltshire \| Sports interrupted by dust devil
		Races had to be halted at a Wiltshire school sports day when a dust devil picked up a bale of straw and flung it on top of children and spectators.
		Two further dust devils later appeared during what was the first sports day at the newly built Sherston School.
		Dust devils may be several metres wide and extend 100 metres into the air but they are fairly weak.
	news.bbc.co.uk /go/em/fr/-/1/hi/england/wiltshire/4705219.stm (270 words)

	Mars Global Surveyor MOC2-281 Release
		Usually when the camera is looking down the dust devil will appear as a circular, fuzzy patch with a straight shadow indicating its columnar shape.
		Usually, such tracks are darker than the surroundings, in this case the light tone might indicate that the dust being removed by the passing dust devil is darker than the surface underneath the thin veneer of dust.
		The shadow cast by the dust devil goes off the edge of the image, but the length shown here (about 1.5 km) indicates that the dust devil was a bit more than 1 km (0.62 mi) in height.
	www.msss.com /mars_images/moc/extended_may2001/dustdevil (430 words)

	Dust Devil
		Dust devils are a very interesting natural disaster.
		Unlike tornadoes, dust devils develop from the ground up and operate independently of clouds, usually appearing during cloudless skies.
		During a scientific count of dust devils undertaken around Tucson, Arizona, from June 23 to July 28, 1963 a total of 1,663 dust devils were spotted.
	library.thinkquest.org /03oct/01544/dustdevils.htm (228 words)

	NASA - The Devils of Mars
		Although the exact frequency and duration of Martian dust devils is unknown, photographs from Mars Global Surveyor in orbit reveal innumerable wandering tracks at all latitudes on the planet.
		Moreover, actual dust devils have been photographed from orbit--some of them as large as 1 to 2 kilometers across at their base and (from their shadows) clearly towering 8 to 10 km high.
		And after the dust devil passed over and was gone, a lasting souvenir of its passage would be an increased adhesion of dust to spacesuits, vehicles, and habitats via electrostatic cling--the same phenomenon that causes socks to stick together when pulled out of a clothes dryer--making cleanup difficult before reentering a habitat.
	science.nasa.gov /headlines/y2005/14jul_dustdevils.htm (1406 words)

	Mars Global Surveyor MOC2-220 Release
		Each dust devil would leave a dark streak by removing bright dust from the terrain in its path, revealing a darker surface underneath.
		The dust devil is less than 100 meters (less than 100 yards) wide and the picture covers an area approximately 1.5 by 1.7 kilometers (about 1 by 1 mile).
		These dust devils and streaks are the subject of an oral presentation on the afternoon of March 16, 2000.
	mars.jpl.nasa.gov /mgs/msss/camera/images/lpsc2000/3_00_dustdevil/index.html (655 words)

	Dust Devil: The Final Cut
		As with the commentary for Dust Devil, this is a very active track as Stanley has just as much to say about this film as he does about the main attraction on the disc.
		The first booklet is the Dust Devil Production Diary which ten pages of text that Stanley wrote while filming the movie preceded by an introduction, also from Stanley which explains where some of the inspiration for the film came from.
		Dust Devil has been neglected far too long, but Subversive changes all of that with this amazing set that is truly a definitive release.
	www.dvdmaniacs.net /Reviews/A-D/dust_devil_subversive.html (4030 words)

	Mars Global Surveyor MOC2-318 Release
		The dust devil was moving toward the northeast (upper right), leaving behind a dark trail where a thin coating of surficial dust was removed or disrupted as the dust devil advanced.
		Dust devils most commonly form after noon on days when the martian air is still (that is, when there isn't even a faint breeze).
		The dust devil in this image has a very short, dark shadow cast to the right of the bright column; this shadow is short because the sun was nearly overhead.
	www.msss.com /mars_images/moc/8_2002_releases/dustdevil (422 words)

	SBEAP Small Business Environmental Assistance Program Dust Information Main Page
		Dust is one of the main components of the "Brown Cloud" of air pollution that continues to hover over the Valley.
		Marciopa County rule 310 requires every construction project of.1 acre or more to submit a Dust Control Plan specifying the dust control measures to be implemented.
		As a routine SOP dust control should be covered in project's preconstruction planning and coordination meetings, as well as weekly project meetings.
	www.maricopa.gov /sbeap/dust_main.aspx (801 words)

	DEVIL AND DUST
		Reported to be rehearsed for the Devils and Dust tour on 11 Mar and 20 Apr 2005 at the Paramount Theatre, Asbury Park, NJ.
		The inspiration for reviving the solo material, Springsteen says, was a new song, "Devils and Dust," that he wrote in 2003 at the start of the Iraq War.
		The new Bruce Springsteen single, "Devils and Dust," is a stripped-down acoustic ballad in the vein of his 1995 disc, "The Ghost of Tom Joad." Although the singer hasn't yet commented on it, the song appears to deal with a crisis of faith experienced by an American soldier in Iraq.
	www.springsteenlyrics.com /lyrics/d/devilsanddust.php (721 words)

Try your search on: Qwika (all wikis)