In honor of Zhang's achievements in science and technologies, his Close friend Cui Ziyu (Cui Yuan) wrote a memorial inscription on his burial stele, which has been preserved within the Guwen yuan.[eight] Cui stated, "[Zhang Heng's] mathematical computations fatigued (the riddles of) the heavens and also the earth. His innovations https://heng36598653.aioblogs.com/85001959/considerations-to-know-about-heng365