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You put on your shoes, tie them as firmly as possible, but soon after the laces come undone.
Now scientists think they know what causes one of life's knotty problems.
[...] The researchers say an understanding of shoelaces can be applied to other structures, such as DNA.
[...] They found that when running, your foot strikes the ground at seven times the force of gravity.
Responding to that force, the knot stretches and then relaxes.
As the knot loosens, the swinging leg applies an inertial force on the free ends of the laces, leading to rapid unravelling in as little as two strides.
related stories:
Untangling the Mechanics of Knots
Useful Dead Technologies Redux
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Remember Darwin; building a better mousetrap merely results in smarter mice.
(Score: 0) by Anonymous Coward on Thursday April 13 2017, @11:24PM
Dr Zog's Shoelace Wax!