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Sign in to savethumb|alt=A common spherometer.|A common spherometer. A spherometer is an instrument used for the precise measurement of the radius of curvature of a curved surface. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens.
Wikidata facts
- Instance of
- measuring instrument
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- described by source
- Encyclopædia Britannica 11th edition
- Commons category
- Spherometers
Sources (1)
via Wikidata · CC0