"파일:프톨레마이오스의 굴절광학.jpg"의 두 판 사이의 차이
'''프톨레마이오스의 굴절광학'''. Each quadrant of the disk is graduated into 90˚. α is the angle of incidence, β the angle of refraction.
imported>Zolaist ('''프톨레마이오스의 굴절광학'''. Each quadrant of the disk is graduated into 90˚. α is the angle of incidence, β the angle of refraction.) |
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