micrometer: Quick Facts

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Facts

Also Known As	micrometer caliper

Photos

aluminum foil and micrometer

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Topics

filar micrometer length measurement tool range finder odometer caliper divider surveyor’s chain distance-measuring equipment hand tool radiation measurement machine tool psychological testing

Key People

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George Dollond

British optician

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Jean de Hautefeuille

French physicist

barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure

Fun Facts of Measurement & Math