In honor of Zhang's achievements in science and technological know-how, his Pal Cui Ziyu (Cui Yuan) wrote a memorial inscription on his burial stele, which has been preserved from the Guwen yuan.[8] Cui mentioned, "[Zhang Heng's] mathematical computations exhausted (the riddles of) the heavens plus the earth. His inventions ended https://cesarktbgm.izrablog.com/32218452/top-latest-five-heng365-urban-news