Dust - Reference

Dust is a general name for minute solid particles of diameters less than 500 micrometers (otherwise see sand or granulates) and, more generally, for finely divided matter. On Earth, dust occurs in the atmosphere from various sources: soil dust lifted up by wind, volcanic eruptions, and pollution are some examples; airborne dust is considered an aerosol and can have a strong, local radiative forcing on the atmosphere and significant effects on climate. In addition, if composed of a flammable substance (suc ...

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• Dust - House dust
• Dust - Dust in outer space
• Dust - Reference

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The dust which collects in houses is composed of atmospheric dust combined with dust generated by the inhabitants, mostly from sloughed skin cells and fibers from clothing and coverings. It can be removed with a broom, dusting cloth, or vacuum cleaner. House dust mites, often found in fibers like carpets and beds, feed on the organic components of house dust. Their feces, in turn, become part of house dust and can pr ...

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Dust, Dust - House dust, Dust - Dust in outer space, Dust - Reference

Read more here: » Dust: Encyclopedia II - Dust - House dust

Dust is also widely present in outer space, where gas and dust clouds are primary precursors for planetary systems. The zodiacal light, seen in the sky at night, is produced by sunlight reflecting off particles of dust in orbit around the Sun. The tails of comets are produced by emissions of dust and ionized gas from the body of the comet. Dust also covers planetary bodies, and great dust storms are produced on Mars that can cover nearly the entire planet. Interstellar dust is found between the stars, pro ...

See also:

Dust, Dust - House dust, Dust - Dust in outer space, Dust - Reference

Read more here: » Dust: Encyclopedia II - Dust - Dust in outer space