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25 to 29 of 227 glossary terms
caliper: instrument used to take dimensions. One type has two curved legs whose endpoints are used to determine the diameters of spheres.
Cardan suspension: universal mounting attributed to the 16th-century Italian philosopher and physician Girolamo Cardano which, by means of gimbals, allows the supported part to remain horizontal irrespective of the orientation of the rest of the instrument.
cardinal points: the main directions on the mariner's compass, north, south, east and west.
carpenter's rule: measuring ruler carrying one or more scales for calculating the volume of timber or the surface area of board or planking.
celestial globe: globe marked with the positions of the stars.
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