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The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; [1] SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, [2] is a unit of length in the International System of Units (SI) equalling 1 × 10 −6 metre (SI standard prefix "micro-" = 10 −6); that is, one millionth of a metre (or one thousandth of a ...
A micrometer, sometimes known as a micrometer screw gauge (MSG), is a device incorporating a calibrated screw widely used for accurate measurement of components [1] in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers.
Micrometer can mean: Micrometer (device), used for accurate measurements by means of a calibrated screw; Micrometre, a millionth of a metre
Micro (Greek letter μ, mu, non-italic) is a unit prefix in the metric system denoting a factor of 10 −6 (one millionth). [1] It comes from the Greek word μικρός (mikrós), meaning "small".
10 μm – mean longest dimension of a human red blood cell [citation needed] 5–20 μm – dust mite excreta [94] 10.6 μm – wavelength of light emitted by a carbon dioxide laser; 15 μm – width of silk fibre [citation needed] 17 μm – minimum width of a strand of human hair [25] 17.6 μm – one twip, a unit of length in typography
In the metric system, a microgram or microgramme is a unit of mass equal to one millionth (1 × 10 −6) of a gram.The unit symbol is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg.
More than 100 Reddit communities have banned users from posting links to X in protest at owner Elon Musk's controversial arm gesture at a rally celebrating Donald Trump's return to office.
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic.Each prefix has a unique symbol that is prepended to any unit symbol.