books.google.de - String theory says we live in a ten-dimensional universe, but that only four are accessible to our everyday senses. According to theorists, the missing six are curled up in bizarre structures known as Calabi-Yau manifolds. InThe Shape of Inner Space, Shing-Tung Yau, the man who mathematically proved...http://books.google.de/books/about/The_Shape_of_Inner_Space.html?id=M40Ytp8Os_gC&utm_source=gb-gplus-shareThe Shape of Inner Space
