In honor of Zhang's achievements in science and technological innovation, his Pal Cui Ziyu (Cui Yuan) wrote a memorial inscription on his burial stele, that has been preserved while in the Guwen yuan.[8] Cui mentioned, "[Zhang Heng's] mathematical computations exhausted (the riddles of) the heavens as well as earth. His https://heng36522086.actoblog.com/32267275/top-guidelines-of-heng365