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Micrometer, unit of measure |
A micrometre (American spelling: micrometer, symbol µ) is an SI unit of length equal to one millionth of a metre, or about a tenth of the size of a droplet of mist or fog. It is also commonly known as a micron. The micrometre is a common unit of measurement for wavelengths of infrared radiation. Some people (especially in astronomy and the semiconductor business) use the old name micron and/or the solitary symbol µ (both of which were official between 1879 and 1967) to denote a micrometre. This practice persists in the face of official discouragement, perhaps to help disambiguate between the unit of measurement and the micrometer, a measuring device. |
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Convert micrometer to: meter, exameter, petameter, terameter, gigameter, megameter, kilometer, hectometer, dekameter, decimeter, centimeter, millimeter, micron, nanometer, picometer, femtometer, attometer, megaparsec, kiloparsec, parsec, light year, astronomical unit, league, nautical league (UK), nautical league (international), league (statute), mile, nautical mile (UK), nautical mile (international), mile (statute), mile (US survey), mile (Roman), kiloyard, furlong, furlong (US survey), chain, chain (US survey), rope, rod, rod (US survey), perch, pole, fathom, fathom (US survey), ell, yard, foot, foot (US survey), link, link (US survey), cubit (UK), hand, span (cloth), finger (cloth), nail (cloth), inch, inch (US survey), barleycorn, mil, microinch, angstrom, a.u. of length, X-unit, fermi, arpent, pica, point, twip, aln, famn, caliber, centiinch, ken, Russian archin, Roman actus, vara de tarea, vara conuquera, vara castellana, cubit (Greek), long reed, reed, long cubit, handbreadth, fingerbreadth, Planck length, Electron radius (classical), Bohr radius, Earth's equatorial radius, Earth's polar radius, Earth's distance from sun, Sun's radius
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