Collins, A. Frederick (Archie Frederick), 1869- · New York, London, D. Appleton and company · leaf 108
ble. MOTHER EARTH, OLD ADAMS PLANET S7 How to Know When You Are at the North Pole.—If you should ever reach the north pole where overhead is north andevery other direction is south how would you know it? Suppose you were standing on the exact top of the worldduring one of its long polar nights,… … y Fig. 100.—Shadows at the North Pole. But if you were there during a long Arctic day, that is, inthe good old summertime, you could see the Sun making acircle, or seeming to, once in 24 hours, parallel to the horizon,and never going higher or getting lower. Explorers use a sextant to find out when…
Astronomy · Stars
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
