The World's Fastest Shoelace Knot

By: Pedro Corá Shoelaces (also shoestrings, shoe laces or boot laces) are the system used to secure shoes. The shoelace can be untied and loosened, permitting the shoe to open wide to admit the wearer's foot; it can then be tightened and knotted into a bow shaped knot. Shoelaces did not become widely popular until the 20th century. Previously shoes were slip-on, buckled, or buttoned. Buttoned shoes used a special tool, a button hook, to close the buttons, but this was slow and difficult. -- Entry by Wikipedia.org