The most common mistake when tying your shoelaces is accidentally making a weaker granny knot instead of the stronger square knot. Now, physics can help you tie the perfect knot that stays tight no matter what.
While it is well-known that any knot’s strength depends on its configuration, nobody really understands specifically why this should be the case. With a recent paper in Physical Review Letters, a team of physicists has taken an important step forward in unraveling this mystery, boiling it all down to a single equation that predicts the strength and shape of a simple knot.
via Gizmodo
