Earth Curvature

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“The sun is so far away that it would appear at the same angle from Philadelphia, St. Louis, and Denver, and if it were noon at one of these places, it would be noon at the others. Vertical lines at the three places would be parallel. But when it is noon at St. Louis, it is 1 P.M. at Philadelphia and 11 A.M. at Denver.” -Dryer, 1901

Galleries

Astronomy

Source

Charles R. Dryer Lessons in Physical Geography (New York, NY: American Book Company, 1901)

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