Middle of winter in the Colorado high country can be a daunting place. Lately, frigid cold has slid down the mountains and ...

There are thousands upon thousands of these kinds of conceptual tangles in a bewildering corner of mathematics known as knot theory, but even there Conway’s discovery was special—not so much for what ...

A visitor chooses various kinds of Chinese knots displayed in a showroom in Honghua town. [Photo provided to CHINA DAILY] ...

Visit the homepage for more information. The story of the Devotion to Mary, Untier of Knots begins with the German nobleman Wolfgang Langenmantel (1568-1637). For some years, he had been married to ...