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 ...

The thousand-year-old image of the Celtic Knot, characterized by thick interlocking lines that looks like rope, has quickly become the most common tattoo for wide-eyed Irish-Americans. NPR’s Ari ...

What is the most cliched tattoo you can think of? Chinese characters? A tribal armband? How about a Celtic knot? Those interlocking lines that look like ropes or basket weaving. Last week I was in ...

Scientists have devised a new molecular technique, inspired by Celtic Knots and trees, which could be used in the treatment of multiple diseases. Researchers at the Network of Excellence for ...