Smith, Hamilton Lanphere, 1819-1903. [from old catalog] · Cleveland, M. C. Younglove and company · leaf 109
nights would have been equal all over the world, for, as will beseen on reference to the figure on page 105, the sun would shinefrom pole to pole, and as it would illuminate but half the globe atonce, a spectator any where on its surface, would be just as longin passing through the unilluminated as… … Thus, a spectator at A, on the parallel of latitude B C, would bejust as long in moving through the half of the unilluminated por-tion of the earth B A, as through half the illuminated A C. Thisis the case at the equinoxes. When the sun is in either of thosepoints of his orbit which crosses the…
Astronomy · Meteorology · Geology · Paleontology
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