In honor of Zhang's achievements in science and know-how, his Buddy Cui Ziyu (Cui Yuan) wrote a memorial inscription on his burial stele, that has been preserved inside the Guwen yuan.[eight] Cui said, "[Zhang Heng's] mathematical computations exhausted (the riddles of) the heavens as well as earth. His inventions were https://heng36532087.widblog.com/86686980/little-known-facts-about-heng365