Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 73
n at the other. 57. The Earth Flattened at the Poles. — Degrees on themeridian have been measured in various parts of the earth,and it has been found that they invariably increase in length ASTRONOMY. 56 as we proceed from the equator towards the pole : hencethe earth must curve less and less… … Fig. 68. turned towards the sun is illumined, and the other side is indarkness. As the planet rotates on its axis, successive por-tions of it will be turned towards the sun. As viewed froma point in space between it and the sun. it will presentlight and dark portions, which will assume different…
Astronomy
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