A World Map on a Regular Icosahedron by Gnomonic Projection

ROFESSIONAL cartographers wrote indignant protests to New York Times concerning its editorial of February 2I, I943, which said of Mercator projection that the time has come to discard it for something that represents continents and directions less deceptively. The cartographers were right; so was New York Times. The time most certainly has not come for discarding Mercator as a working chart for navigators, but time has come for discarding it as standard world map for millions to look at as a means of visualizing world relationships. Especially in our schools should distortions of Mercator projection be rectified; for it is at school age that we form geographical images to be carried through life. The icosahedral projection described in this article attempts to remedy this situation by providing a flat world map (P1. II) that can be folded quickly and easily into a shape resembling a sphere. It has been stated in language terse and effective, that best way of judging a world projection is to look at it.' The icosahedral map, folded or flat, in its several regions looks right to eye-whether eye of layman or of professional user of maps. Certainly layman will appreciate verisimilitude and be content with approximations of scale, direction, and area

Algorithm · Cartography · Geography · Projection (relational algebra · World map · Historical Geography and Cartography · Mathematics

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