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 Celtic knot — a pattern of interlocking lines — is centuries old, carved into ancient stones all over Ireland. But that tattoo on your biceps? Like the fortune cookie, American born and bred.

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 ...

Some Celtic gardens make use of popular Celtic design patterns, like crosses and knots. Others feature sculptures of animals, druids, and goddesses.