This short episode covers the life of one of the great mathematicians, astronomers, and engineers of ancient China: Zu Chongzhi. In his life from 429-500 CE, he will re-create an ancient precursor to the compass that had been lost for centuries, calculate the motions of the celestial objects with a degree of accuracy in excess of 99.9%, design a comprehensive new calendar system, and derive the value of π to a degree of accuracy that would not be surpassed the world over for another millennium. For information regarding your data privacy, visit acast.com/privacy