Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 98
Fig. 21, 1 Nu-ta/tion, from Latin nutatio, nodding. THE EARTH, 93 earth at one time, its light extends both to the northand south poles. If the figure be held up-just in frontof the eyes, and be supposed to rotate about the axisfrom left to right, or, much better, if a globe be held in … Fig. 22.—The Earth and its Important Circles. this position and made to rotate, it will be seen that,since the sun is on the equator, it will rise directly eastof us at six oclock in the morning, and set directlywest of us at six oclock in the evening. Day andnight will be equal all over the earth.…
Astronomy
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