A short course in astronomy and the use of the globes (1871)
Kiddle, Henry, 1824-1891 · New York, Chicago, Ivison, Blakeman, Taylor & co. · leaf 178
and S O a ray of light, entering thewater at O. Instead of keeping on in thedirection S O, it is bent toward the per-pendicular A B, and thus passes less obliquely. 284. As the earths atmosphere is not of uniformdensity, but grows more and more dense toward the sur- 283. Why are not the ohserved… … 176 BE FRA CTI OX. face of the earth, the rays of light which proceed fromany body are constantly bent more and more toward aperpendicular direction; and since we see an object inthe direction in which the ray of light strikes the eye, theapparent altitude of the body will be increased. Suppose E…
Astronomy
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