Zhang Heng's achievement is probably the result of his grandfather's excellent gene atavism. Zhang Kan, Zhang Heng's grandfather, was a military wizard with a smart mind and a real personality. Zhang Heng idolizes his grandfather since he was a child and is determined to be such a person. History has proved that shine on you is better than blue, and it is stronger after wave!
Zhang Heng left the most indelible contribution to future generations, that is, he pioneered the study of geography in China, and even invented the seismograph, a magical machine that even modern people can't copy! It is said that all the seismographs restored now are only superficial, and there is no function of Zhang Heng's original seismograph to accurately judge the earthquake orientation.
In astronomy, Zhang Heng summed up his theory of "Huntian" based on years of observation, and made a more accurate and sophisticated Huntian instrument (a mechanical calendar) on the basis of Qian Gengshou's "Huntian Instrument".
In mathematics, Zhang Heng once wrote a book Calculation Theory, but it was lost in the Tang Dynasty. The book mainly calculates the volume problem, and at the same time roughly calculates the value of pi. Although it is only accurate to four decimal places, it is the first time that a recorded person in China has calculated the value of pi.
Although Zhang Heng is a great scientist, he is not weak in liberal arts. In literature, he can write fu and draw pictures. Representative works include Erjing Fu, Sixuan Fu and Guitian Fu. Although his paintings have not been passed down to this day, some people have seen his paintings in the Tang Dynasty and gave them a high evaluation.
If Zhang Heng, a genius, was not born more than 2000 years ago, it is estimated that it would be easy to win several Nobel Prizes and win glory for the Chinese people!