The bowline, clove hitch, and square are knots familiar to campers who might need to, say, tie down a tent with rope. But there are naturally occurring knots, too—ones that can be found on the ...

The hypnotic Celtic knot might not be as complicated as it seems. Fourth-year math major Benjamin Liu, from Northampton, Mass., has broken the Celtic knot into 12 standard segments that can be ...

Three figure-eight knots tied into strings may be the first word from the ancient Inca in centuries. While the Incan empire left nothing that would be considered writing by today's standards, it did ...

In Clive Cussler’s thriller Inca Gold, a crucial clue in an international treasure hunt is encoded in an ancient tangle of knotted, colored strands. Using a computer to identify patterns, an expert ...