Maps & Spherical Geometry

The Earth is round, and that changes the rules of geometry. Repeat Eratosthenes' measurement of the planet, find your way with latitude and longitude, discover why flight paths curve, meet triangles whose angles add up to more than 180°, plan a great-circle flight on a Mercator map, and learn why Greenland looks as big as Africa on many maps, and what other projections do instead.