5. Globe Traversal

How many places are there on earth where one could walk one mile south, then one mile west, then one mile north and end up in the same spot? Assume the earth is a solid smooth sphere.
-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Echo , the dolphin

Echo, a dolphin is trying to jump through a circular hole in his enclosure to escape from the aquarium. From echo's perspective just u...

  • WHAT!!!! you must be joking
    Circle in a chess board Consider an infinite chessboard, where the squares have side length of 1. The squares are colored black and whit...
  • What will you ask?
    Problem 6: The Two Doors You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don...
  • Echo , the dolphin
    Echo, a dolphin is trying to jump through a circular hole in his enclosure to escape from the aquarium. From echo's perspective just u...