What have scientists said about shoelaces coming untied?



2017-04-12T07:16:58.015Z
2017-04-12T07:16:58.015Z

Why do laces come untied according to scientists?

Scientists at University of California Berkeley have analysed the forces on laces during walking, and found that the force of the shoe hitting the ground stretches and relaxes the knot, while the swinging of the leg pulls the ends of the laces, like an invisible hand.

Sources

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