Earlier this year I attended a study day in Bristol run by the West of England Costume Society. The theme of the day was “Knitting Yarns Unravelled” and included a talk by a Dr Jo Turney of Bath Spa University. She mentioned crochet chaos and at the time I made a note but did not research the reference. Today I had a look and found that it referred to a project by scientists at Bristol University’s engineering mathematics department. The Lorenz equations describe chaotic systems such as the weather or a turbulent river and the work was part of the development of a computer model to describe complex surfaces. You can view a video of the result here.