Museum of Indian Arts and Culture - Ropes with knots woven from yucca leaves. This knotted cord is similar to those used by Pueblo runners to help coordinate and communicate during the
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0.8mm Knot-It! Chinese Knotting Cord - White - 15m - Beads And Beading Supplies from The Bead Shop Ltd UK
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newtonian mechanics - Which is stronger, a rope without knots or a rope with knots? - Physics Stack Exchange
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