Sentences with phrase «dust devil»

A number of infinitesimally small, dust devil — like energy vortices called quarks and photons collectively make up the structure of the atom.

Dust devil winds carry the small, negatively charged particles high into the air, while the heavier, positively charged particles remain near the base of the dust devil.

Dust devil tracks and wind streaks in the north polar region of Mars: A study of the 2007 Phoenix Mars lander sites N. B. Drake, L. K. Tamppari, R. D. Baker, B. A. Cantor, and A. S. Hale Geophysical Research Letters 33, L19S02, doi: 10.1029 / 2006GL026270, 8 September 2006.

NASA's Mars Opportunity rover has captured a rare image of a Martian dust devil traveling across the surface of the Red Planet.

On any day, about one dust devil pops up per square kilometre of surface, at an average size of 13 metres across (arxiv.org/abs/1708.00484).

Golombek, who was the chief scientist of the Pathfinder mission and is another member of the rover science team, told New Scientist: «We wait for months to see a dust devil and finally catch one and there's this big power boost within a day of it?

The two images of the same dust devil show that it was moving at an average speed of 3 metres per second.

A dust devil or whirlwind is either a large rotating updraft, anywhere from 1000 meters high or more and tens of meters in diameter, to a small vortex a few meters high.

All around us, they say, atmospheric currents tumble in cyclonic or anticyclonic patterns that remain hidden until a dust devil paints them brown.

Then our luck turns — in a tall, filmy, swirling pillar that is either a dust devil or a mirage.

At the northern edge of the study site, José Verdasca and Eduardo Sebastián Martínez of the Centro de Astrobiología, a public research laboratory in Madrid, are testing dust devil detection equipment they have designed to fly on NASA's next Mars mission — a car - size ranging rover called Curiosity, to be launched in fall 2011.

So far, no dust devil has harmed any spacecraft there.

«Another,» Oz says as the dust devil travels more or less northwest through the study area.

A dust devil photographed by Tim Michaels creates a vortex that sucks sand tons of meters into the air.

Martin describes this particular dust devil in coded terminology as a «tiny faint short.»

That means it appeared to be less than two meters in diameter, contained so little dust as to remain virtually transparent, and lasted just slightly longer than five seconds, which is the low - end cutoff duration for logging a dust devil in a day's record of observations.

We have been able to confirm the presence of a sand - skirt — the bottom part of the dust devil with high concentration of larger sand grains — and most particles were only lifted within the first metre.

Essentially, we cover a 5 - metre aluminium pipe with double sided sticky tape and run into an active dust devil.

We hold the boom upright in the path of a dust devil and wait until the dust devil passes over the boom.

The average dust devil, which lasts for a few hours at most during the hottest part of the Martian day, is slow - moving but may carry several tons of dust within its height of 1.2 miles (two kilometers).

The Mommy Vortex describes the tornado - like whirlwind that sucks moms - to - be up into the world of Babyland, in contrast to the dust devil swirling around dads - to - be.

Entertainment: Language of Flowers -LCB- audio book -RCB-, Kitchen House -LCB- audio book -RCB-, dodging dust devils, and hunting for parking spots that don't require us to show off how talented we are at backing up a truck and trailer.

On Earth, dust devils are relatively small features that form on open fields during the heat of the afternoon.

Although there aren't yet anemometers on the Martian surface to measure wind speed, the camera captured huge dust devils — much like our tornadoes — and provided evidence that the sand dunes on Mars are still being shaped by winds.

Martian dust devils may be a major transporter of the fine, pinkish dust that gives the sky its unearthly brownish color, which was observed by the Mars Pathfinder and Viking landers.

For years, scientists have noticed rapidly varying electric fields inside dust storms and dust devils, the dirty whirlwinds that skitter across many desert areas.

Such rotation may be the driving force behind small tornadoes and waterspouts seen near plumes, which would form in the same way as dust devils around a thunderstorm.

Related sites NASA interview with Ken Edgett of Malin Space Science Systems Photo gallery of martian dust storms and dust devils More images from Mars Orbiter Camera

The Viking orbiters saw dust devils in the mid-1970s, but researchers weren't sure how much dust they threw into the atmosphere.

But friendly dust devils have been a huge help to keeping rovers» panels clean.

Dust devils might affect Mars's atmosphere by whipping particles to high altitudes, where the fine aerosols help control the planet's dry climate.

SAN FRANCISCO — Dust devils might not cause the giant dust storms that envelop Mars, but there are enough of them to cast a hazy pall over the red planet, according to reports here on 6 December at a meeting of the American Geophysical Union.

Dust devils arise in the martian spring and summer when sunlight heats the ground, forcing warm cells of air to rise.

The satellite sees only a fraction of the millions of whirlwinds on Mars, he notes, so dust devils might inject as much dust aloft as a few raging storms.

Dust devils on Mars weave intricate tracks on the surface (left) and climb the walls of craters (right).

Although some scientists thought dust devils might trigger the occasional dust storms that can shroud the entire planet, Cantor's analysis revealed no correlation.

This wind shear is capable of producing small tornadoes or dust devils which can also dart around erratically, damage or destroy houses and buildings, and quickly spread the fire to areas outside the central area of the fire.

Its camera captured huge dust devils — much like our tornadoes — and provided evidence that the sand dunes on Mars are still being shaped by winds.

Dust devils were one of those scientific mysteries no one on Earth bothered to study until we figured out that they may control Mars's weather

The Mars Reconnaissance Orbiter has documented landslides and dust devils on the Martian surface.

Dust devils greet Mars lander; Carbon nanotubes measure spiciness; Autism linked to schizophrenia... and more

The study by Raack and an international team of collaborators gives important insights into the contribution of dust devils to mineral aerosols in planetary atmospheres.

The researchers took samples of grains lifted by dust devils at different heights, studied tracks left by dust devils on the surface and measured physical and meteorological properties of dust devils.

As terrestrial dust devils act very similarly to those on Mars, Raack and colleagues have carried out multiple field campaigns over the past five years to study dust devils in three different deserts on Earth, in China, Morocco and the USA.

Swirling columns of sand and dust, known as dust devils, are a feature of desert areas on Mars and on Earth.

About half of the dust lifted into the martian atmosphere each year is thought to come from dust devils.

Further analysis of the datasets will include meteorological measurements of the dust devils that will be used to interpret data obtained by landers and rovers on Mars, including the Curiosity rover and the upcoming ExoMars and InSight lander missions.

The size distribution of particles within the dust devils seems to correspond to the distribution of grain sizes in the surface they passed over.

«We found that the dust devils we measured have a very similar structure, despite different strengths and dimensions.

In the terrestrial dust devils, the team found that around 60 - 70 % of all the fine dust particles (with diameters up to three hundredths of a millimetre) appear to stay in suspension.