This book focuses on Hamilton's Ricci flow, beginning with a detailed discussion of the required aspects of differential geometry, progressing through existence and regularity theory, compactness theorems for Riemannian manifolds, and Perelman's noncollapsing results, and culminating in a detailed analysis of the evolution of curvature, where recent breakthroughs of Bohm and Wilking and Brendle and Schoen have led to a proof of the differentiable 1/4-pinching sphere theorem.

Jeremy Berg writes, directs and produces this horror starring Angela DiMarco and Kate Alden. When sisters Abby and Rebecca (DiMarco and Alden) return home after a long time away, they decide to revist a place from their childhood. As they walk through the woods to a beautiful lake they notice a small, spherical object lying on the ground. Tentatively, the sisters take the item home but when terrifying things begin to happen to them they start to regret ever having found it...