Zhang Heng is one of the representatives of Huntian theory in the middle Eastern Han Dynasty. He pointed out that the moon itself does not shine, and moonlight is actually a reflection of sunlight; He also correctly explained the cause of the eclipse, and realized the infinity of the universe and the relationship between the speed of planetary motion and the distance from the earth.
2. Zhang Heng observed and recorded 2,5 stars, created the world's first leaky-turned-celestial instrument that can accurately perform astronomical phenomena, the first instrument for testing earthquakes-the seismograph for waiting for the wind, and also made a south car, an automatic drum car, a wooden bird flying for miles and so on.
3. Zhang Heng * * * has written 32 works on science, philosophy and literature, among which astronomical works include Ling Xian and Ling Xian Tu.
In order to commemorate Zhang Heng's achievements, people named a crater on the back of the moon "Zhang Heng Crater Mountain" and asteroid 182 "Zhang Hengxing"
4. Later generations called Zhang Heng "Kesheng".
5. Zhang Heng was once regarded as a great painter in the Eastern Han Dynasty by people in the Tang Dynasty. He worked as an official, so he also had a lot of research on history. He also studied the knowledge of written exegesis and wrote a book "Zhou Guan Exegesis". He is also a great writer, and his "Erjing Fu" is beautiful and well-known, which satirizes and criticizes the luxurious life of the ruling group at that time. His Poem of Four Sorrow was highly praised by Zheng Zhenduo, a literary historian, calling it an "uncommon masterpiece". There is a long passage in his "Si Xuan Fu" describing that he rose to the sky and wandered among the stars, which can be said to be an elegant science fiction poem. There are still more than 2 works left over to this day, such as "Hot Springs Fu" and "Guitian Fu", all of which are masterpieces with excellent words and meanings.
6 famous saying: a gentleman does not suffer from disrespectful position, but from disdainful morality; Don't be ashamed of Lu's lack of cooperation, but be ashamed of knowing nothing. "These two words of hit the floor show his noble sentiment of pursuing morality and wisdom instead of snobbery.
7 Spirit: Zhang Heng, as a scientist, is eager for knowledge and dares to fight against social ignorance that despises knowledge. He has his political ideals and ambitions. He insists on the principle of seeking truth from facts as a scientist's distinctive character.
8 stories; When Zhang Heng was very young, Xiao Zhang Heng was grandma's little tail. No matter where grandma went, there was always a shadow of Xiao Zhang Heng behind her. He is always pestering his grandmother to tell him stories. The old man seems to have endless stories, and he likes this clever grandson very much, so whenever Xiao Zhangheng asks to hear stories, grandma will tell him. Among these stories, Xiao Zhangheng likes the legend of the Big Dipper and the moon best. He always looks up at the blinking stars in the sky while listening to his grandmother, and sometimes asks her: Why don't the stars fall like apples? Are the stars afraid of rain? ..... For the wise grandson's question, of course, grandma couldn't answer it, which made him feel that there would be countless treasures in the vast night sky, and at the same time, countless curious question marks were buried in his young mind. Unable to get the answer from grandma, Xiao Zhangheng eagerly studied, hoping to find the answer he wanted from the book.
when he was ten years old, his grandmother and father died one after another. My uncle sent Zhang Heng to the library to study. He knows how hard it is for him to study, so he works very hard. Soon, Xiao Zhangheng began to write poems. His poems are often praised by teachers. In order to increase knowledge, Xiao Zhangheng read widely. One day, he saw a book called Guanzi, and was deeply attracted by the four sentences in the book that set the season according to the big dipper. From then on, he often looked up at the starry sky and observed the changes of the Big Dipper. Over time, he found that the Big Dipper was turning around a center and turning once a year. He said to himself, "Ah, I finally understand what the big dipper is all about!" "