Back Twist-Knoten (Mathematik) German Nó de torção Portuguese Скрученный узел Russian Скручений вузол Ukrainian
In knot theory, a branch of mathematics, a twist knot is a knot obtained by repeatedly twisting a closed loop and then linking the ends together. (That is, a twist knot is any Whitehead double of an unknot.) The twist knots are an infinite family of knots, and are considered the simplest type of knots after the torus knots.