Nicola Pugno, at the University of Trento in Italy, has succeeded in making by far the toughest material in the world -- by taking a conventional piece of fiber... and tying it in a slip knot. This ...

In surgical procedures, the last knot of a suture is crucial because it must hold the wound firmly in place to allow proper ...

A knowledge and mastery of tying knots is essential for anyone who spends time in the outdoors. And, sure, when faced with certain tasks that require knot-tying, you might be able to get away with ...