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A micrometer is a measurement device incorporating a calibrated screw used widely for precise measurement of small distances in mechanical engineering and machining as well as most mechanical trades. The first micrometer was developed by Jean Laurent Palmer of Paris in 1848.
Micrometers and nanometers are two metric units of measurement. Both of these units are smaller than a millimeter and are often used in chemistry and biology. Many online calculators can complete a conversion between these two units for...