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2014-09-11T12:32:24+05:30

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Parabolic mirrors were also described by the physicist Ibn Sahl in the 10th century, and Ibn al-Haytham discussed concave and convex mirrors in both cylindrical and spherical geometries, carried out a number of experiments with mirrors, and solved the problem of finding the point on a convex mirror at which a ray coming from one point is reflected to another point. By the 11th century, clear glass mirrors were being produced in Moorish Spain.However, Archimedes is the main person of using spherical glasses as he was charged of having mirrors which would burn ships by focussing the sun’s rays on the same ships and burning them to ashes.
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