Gates named his mansion "Xanadu 2.0." Bill Gates reveals why he can't bear to part with his sprawling $130 million mansion: ...

Sophie Brooks wrote and directed the film that also stars Logan Lerman, Geraldine Viswanathan, and John Reynolds.

Simply put, pi is a mathematical constant that expresses the ratio of a circle's circumference to its diameter. It figures into numerous formulas used in physics, astronomy, engineering and other ...