Quick Time Video at the bottom of the page :
http://graphics.ethz.ch/publications/papers/paperMar10.php
Awesome ! So, we may live enough to see a computer simulation of a real knot …
Real-Time Knot Tying Simulation
http://robotics.stanford.edu/~latombe/papers/knotmaking/paper.pdf
Analytical modeling of synthetic fiber ropes
http://archimer.ifremer.fr/doc/2007/publication-2595.pdf