China, the first mathematician in the world who worked out the correct formula for calculating the volume of a sphere, was Zu Chongzhi in the Southern Dynasties, about a thousand years earlier than Europeans. He also carefully studied the art of celestial arithmetic (astronomical mathematics) and refined the calendar of the Ming Dynasty. After his repeated requests, it was officially promulgated on 5 10. He also made bronze sundials (an instrument for measuring the time from the shadow of the sun), clepsydra and other precision observation instruments, which were adopted by later generations.
(The picture on the right shows the first person in the world to calculate the volume of a ball-Zu Chongzhi, a famous mathematician in ancient China).
Volume, the size of the space occupied by an object is called the volume of the object [1]. The international unit of volume system is cubic meters. The volume of a solid object is a numerical value that describes the space occupied by the object in three-dimensional space. One-dimensional space objects (such as straight lines) and two-dimensional space objects (such as squares) have zero volumes in three-dimensional space.