Spontaneous knotting of an agitated string

Knot-related Computing
1

Spontaneous knotting of an agitated string

by Dorian M. Raymer and Douglas E. Smith

http://www.pnas.org/content/104/42/16432.figures-only
http://www.pnas.org/content/104/42/16432.full

" A string was placed in a cubic box and the box was rotated at constant angular velocity about a principle axis perpendicular to gravity, causing the string to tumble. We investigated the probability of knotting, the type of knots formed, and the dependence on string length."

2

http://www.youtube.com/watch?v=lNWEuMJCMEk

Spontaneous knotting of self-trapped waves
http://www.nature.com/srep/2012/121025/srep00771/full/srep00771.html