by John on (#6E7D8)
I was flipping through Gravitation [1] this weekend and was curious about an illustration on page 309. This post reproduces that graph. The graph is centered at Cairo, Egypt and includes triangles whose side lengths are the distances between cities. The triangles are calculated using only distances, not by measuring angles per se. The geometry [...]The post Curvature at Cairo first appeared on John D. Cook.