Topology is the study of properties of geometrical objects that remain invariant as the object is bent, twisted, or otherwise continuously deformed. It has been

Topology is the study of properties that remain unchanged under bending, twisting, and stretching of a system. Long important in other areas of physics, topolog

Precise illustrations demonstrate each step. DVD features Lefty Kreh tying 30 of his favorite knots and reinforcing techniques in the text.

Learn the ropes of erotic bondage with a discreet knot-tying guide featuring a playful ribbon-tie closure. Follow the step-by-step illustrations and discover ho

This book brings together twenty essays on diverse topics in the history and science of knots. It is divided into five parts, which deal respectively with knots