Pierre Vernier
Pierre Vernier
1584-1638
French military engineer who invented the Vernier caliper or Vernier scale for measuring small angles and lengths. The instrument, sometimes simply called the vernier, consisted of a large stationary scale for measuring whole numbers, along with a smaller, movable scale for measuring fractions. Originally used in astronomy, it replaced the much more complicated astrolabe; ultimately, however, the vernier would gain even wider use among surveyors.
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Scale , scale1 / skāl/ • n. 1. each of the small, thin horny or bony plates protecting the skin of fish and reptiles, typically overlapping one another. 2. s… Earthquake Magnitude , earthquake magnitude (earthquake intensity) The magnitude of an earthquake can be estimated from its destructiveness using the Mercalli scale. As thi… vernier , ver·nier / ˈvərnēər/ • n. a small movable graduated scale for obtaining fractional parts of subdivisions on a fixed main scale of a barometer, sextan… scale insect , scale in·sect • n. a small insect (suborder Homoptera) with a protective shieldlike scale. It spends most of its life attached by its mouth to a sing… Scale (measurement) , scales1 an instrument for weighing, originally a simple balance (a pair of scales); the notion of a soul's good and evil deeds being weighed after de… Caliper , Caliper
A caliper is an instrument used for measuring linear dimensions that are not easily measured by devices such as meter sticks or rulers. Two e…
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Pierre Vernier