> A friend in chemistry asked me recently about uses of topology that have > found their way into the "real" world. I was hard pressed to give > examples. > > Can you help?
Someone once developed a vidoe game that was supposed to be like a 3-d version of Tetris. It was played on a spherical planet that was laid out in a checkerboard. You could rotate the sphere left, right, up, and down, and you always saw this checkerboard pattern in front of you.Topologically, this is impossible on a shpere! How did the game developers solve this problem???
(PS The answer is a perfect real-world application of topology.)