In honor of Zhang's achievements in science and know-how, 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 said, "[Zhang Heng's] mathematical computations exhausted (the riddles of) the heavens plus the earth. His inventions ended https://heng36576420.shoutmyblog.com/31014979/top-latest-five-heng365-urban-news