IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This clear plastic circular ...
Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...
An angle is the amount of turn between two lines. An angle is measured in degrees (°). Angles are a way of describing the space between 2 lines that begin at the same point. They are a measure of how ...
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