Anonymous ID: 30c8ab Aug. 20, 2023, 4:58 p.m. No.19395647   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>5665

"This map has been prepared with the North Pole as the mathematical center. From it, distances to any part of the world may be measured. On Mercator's map of the world, the polar regions are so scattered that their relatively small area and availability for flight routes are disregarded. Today, with airplanes following great circle courses, often within the Arctic Circle, polar projection maps are indispensable to the people of this air-minded age."