An alien creature that defends itself through psychoanalysis. Webcomic The Secret Knots collects strange ideas from universes just askew from ours. The Secret Knots, by Juan Santapau, is a rather ...

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 ...