快猫短视频

UNDER what circumstances does a suspect鈥檚 confession increase the chance that they are innocent? What is the smallest fence you can build around a square patch of land to stop someone seeing across it? Is it possible to build a maze composed of rules and instructions rather than yew bushes? These are just some of the 鈥渕athematical explorations鈥� 鈥� some serious, others delightfully trivial 鈥� tackled by Cows in the Maze, a collection of 21 stand-alone chapters that originally appeared as columns in Scientific American.

Be warned: this is not a book you can casually flick through. To get to grips with the underlying mathematics 鈥� usually explained in detail with illustrations 鈥� requires serious mental effort, not to mention a pen and paper or counters. But if you like a challenge, or happen to have a lightning-fast brain, you will be rewarded.