When is a knot not a knot? • Take a piece of string. Tangle it, and thread it though itself, in any way you choose. Glue the ends together. You may well have created a KNOT. • Take a piece of string. Glue the ends together, tangle it, and thread it though itself, in any […]
Tag: knot
Neckties and non-linearity avoidance
If you tie a knot in a necktie, you may have noticed that (in general) there are three major probabilities regarding the outcome. Sometimes the thin end is longer than the wide end, sometimes the wide end is longer than the thin end, and sometimes they are (roughly) equal. In 2010, Tomoyoshi Motohiro of the […]
Remove a Nail, and the Painting Falls Off the Wall
An all-star team of computer scientists has come up with better ways to remove paintings from museum (or any other) walls). The team includes Luxuriant Flowing Hair Club for Scientists (LFHCfS) member Erik Demaine [pictured here] and RSA Security co-founder Ron Rivest. Their study is: “Picture-Hanging Puzzles,” Erik D. Demaine, Martin L. Demaine, Yair N. […]