Parabolic mirrors were described and studied in classical antiquity by the mathematician diocles in his work on burning mirror.Ptolemy conducted a number of experiments with curved polished in his optics.parabolic mirrors were also described by the physicist ibn sahl in 10th CE , and ibn al-haytham discussed concave and convex mirrors in both cylindrical and spherical geometries carried out a number of experiments wth mirrors and solved the problem of finding the point on a convex at which a ray coming from one point is reflected to another point. By 11th CE clear glass mirrors were being produced in Moorish Spain.
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