Dust

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Dust is a general name for minute solid particles with diameters less than 20 thou (500 micrometers). Particles in the atmosphere arise from various sources such as soil dust lifted up by wind, volcanic eruptions, and pollution. Dust in homes, offices, and other human environments consist primarily of human skin cells, but also contain small amounts of plant pollen, human and animal hairs, textile fibers, paper fibers, minerals from outdoor soil, and many other materials which may be found in the local environment.

For more information about Dust, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with dust

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Scientist uncovers relics of ancient cosmos

Scientist uncovers relics of ancient cosmos

Space & Earth / Space Exploration

created Dec 14, 2009 | popularity 4.5 / 5 (18) | comments 3

(PhysOrg.com) -- A University of Manchester scientist, working as part of an international team, has uncovered an unexpectedly rich trove of relicts from the ancient cosmos.


Rear Wheel Trouble Continues

Spirit Rover: Rear Wheel Trouble Continues

Space & Earth / Space Exploration

created Dec 10, 2009 | popularity 4.8 / 5 (5) | comments 0

(PhysOrg.com) -- Results of diagnostic tests on Spirit's right-rear wheel on Sol 2109 (Dec. 8, 2009) continue to indicate a troubled wheel, which may leave the rover with only four operable wheels.


Spitzer Unveils Biggest Milky Way View at Adler Planetarium

Spitzer Unveils Biggest Milky Way View at Adler Planetarium

Space & Earth / Space Exploration

created Dec 04, 2009 | popularity 5 / 5 (2) | comments 3

(PhysOrg.com) -- The world's largest image of our Milky Way galaxy, taken by NASA's Spitzer Space Telescope, went on display this week at the Adler Planetarium in Chicago.


Blushing dusty nebula

Blushing dusty nebula

Space & Earth / Astronomy

created Dec 01, 2009 | popularity 4.5 / 5 (2) | comments 1

On Earth, we tend to find dust nothing more than a nuisance that blankets our furniture and causes us to sneeze. Cosmic dust can also be a hindrance to astronomers because cameras using visible light cannot ...


The Energy Sources of Ultraluminous Galaxies

The Energy Sources of Ultraluminous Galaxies

Space & Earth / Astronomy

created Nov 27, 2009 | popularity 4.7 / 5 (20) | comments 3

(PhysOrg.com) -- Ultraluminous infrared galaxies ((ULIRGs) are galaxies whose luminosity exceeds that of a trillion suns; for comparison, the Milky Way galaxy has a typical (and much more modest) luminosity ...


Yellow dust blowing over Seoul

SKorea to plant trees in China to reduce 'yellow dust'

Space & Earth / Environment

created Nov 04, 2009 | popularity not rated yet | comments 0

The Seoul city government will help fund a tree-planting project in a Chinese desert to reduce the amount of harmful "yellow dust" blowing over South Korea, officials said Wednesday.


Texas A&M prof to predict weather on Mars

Space & Earth / Space Exploration

created Nov 04, 2009 | popularity not rated yet | comments 0

Is there such a thing as "weather" on Mars? There are some doubts, considering the planet's atmosphere is only 1 percent as dense as that of the Earth. Mars, however, definitely has clouds, drastically low temperatures and ...


Artist concept of Stardust.

'Ultra-primitive' particles found in comet dust

Space & Earth / Space Exploration

created Nov 02, 2009 | popularity 4.9 / 5 (9) | comments 2

Dust samples collected by high-flying aircraft in the upper atmosphere have yielded an unexpectedly rich trove of relicts from the ancient cosmos, report scientists from the Carnegie Institution. The stratospheric ...


Answering that age-old lament: Where does all this dust come from?

Answering that age-old lament: Where does all this dust come from?

Space & Earth / Environment

created Oct 28, 2009 | popularity 4.4 / 5 (7) | comments 1

Where does it come from? Scientists in Arizona are reporting a surprising answer to that question, which has puzzled and perplexed generations of men and women confronted with layers of dust on furniture and ...


Orionids Meteor Shower Lights Up the Sky

Orionids Meteor Shower Lights Up the Sky

Space & Earth / Space Exploration

created Oct 21, 2009 | popularity 4 / 5 (4) | comments 0

Earth is currently passing through a stream of debris from Halley's Comet, lighting up the night sky with the "fireworks" of the annual Orionids meteor shower.


Astronomers seek to explore the cosmic Dark Ages

Space & Earth / Astronomy

created Oct 15, 2009 | popularity 4.9 / 5 (9) | comments 1

No place seems safe from the prying eyes of inquisitive astronomers. They've traced the evolution of the universe back to the "Big Bang," the theoretical birth of the cosmos 13.7 billion years ago, but there's still a long ...


Moon crash: Public yawns, scientists celebrate (AP)

Moon crash: Public yawns, scientists celebrate

Space & Earth / Space Exploration

created Oct 10, 2009 | popularity 3.9 / 5 (19) | comments 11

(AP) -- NASA's great lunar fireworks finale fizzled. After gearing up for the space agency's much-hyped mission to hurl two spacecraft into the moon, the public turned away from the sky Friday anything but ...


NASA to moon: Get ready because here we come (AP)

NASA probes hit moon twice (Update 2)

Space & Earth / Space Exploration

created Oct 09, 2009 | popularity 4.4 / 5 (7) | comments 11

NASA's Lunar Crater Observation and Sensing Satellite, or LCROSS, created twin impacts on the moon's surface early Friday in a search for water ice. Scientists will analyze data from the spacecraft's instruments ...


Electrostatic surface cleaning

Electrostatic surface cleaning

Technology / Engineering

created Oct 07, 2009 | popularity not rated yet | comments 0

It's often the little things that count in industrial manufacturing processes. Particles less than half the diameter of a hair in size can significantly impair quality in production. For example, there should ...


Largest Ring Around Saturn

Largest Ring Around Saturn Discovered

Space & Earth / Astronomy

created Oct 07, 2009 | popularity 4.7 / 5 (32) | comments 12

(PhysOrg.com) -- NASA's Spitzer Space Telescope has discovered an enormous ring around Saturn -- by far the largest of the giant planet's many rings.