If you like the asymmetric look of the half Windsor, but also want a slightly longer shaped, and a little bigger sized knot, then the Cavendish is a perfect choice. It was “invented” by two Cambridge University professors (Thomas Fink and Yong Mao) that are most well known for their research on necktie knots, and for publishing the book titled “85 Ways to Tie a Tie“. The Cavendish knot is named after the Cavendish Laboratories – the Department of Physics at Cambridge where Frank and Mao studied and taught.