We tie our shoes, we put on neckties, we wrestle with power cords. Yet despite deep familiarity with knots, most people cannot tell a weak knot from a strong one by looking at them, new Johns Hopkins University research finds.
Researchers showed people pictures of two knots and asked them to point to the strongest one. They couldn’t.
They showed people videos of each knot, where the knots spin slowly so they could get a good long look. They still failed.
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