The geography of the heavens and classbook of astronomy; (1863)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Whitall, Henry, 1819-1887? Celestial planisphere. [from old catalog] · New York, Mason brothers; Boston, Mason & Hamlin; [etc., etc.] · leaf 300
o B without be-ing refracted. But the ray D Cstrikes the water at C obliquely;and instead of passing straightthrough to E, is refracted at C,and reaches the bottom of the water at F. If, therefore, a person were to receive tharay into the eye at P, and to judge of the place of the object from which… … 639. When light passesobliquely from a denserto a rarer medium, asfrom water into air, it isrefracted from a perpen-dicular towards a horizon-tal. Here the lamp A shines upthrough water into air. The raythat strikes the surface perpen-dicularly passes on to B withoutDeing refracted; but the other…
Constellations · Stars
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