In honor of Zhang's achievements in science and technological know-how, his Good friend Cui Ziyu (Cui Yuan) wrote a memorial inscription on his burial stele, which has been preserved during the Guwen yuan.[eight] Cui stated, "[Zhang Heng's] mathematical computations fatigued (the riddles of) the heavens as well as earth. His innovations had been si
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Ballet, opera and orchestral performances enthral crowds. Fireworks, concerts and carnivals appease the younger and outdated. The world’s oldest White Nights Festival is the ultimate highlight here, which shouldn’t be missed. St. Petersburg has daylight for more than 24 hrs every day all through this time. The sunsets just after midnight and ri
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