Zhang Heng s diligent and studious story, the story Zhang Heng who is diligent and inquisitive .

When Zhang Heng was very young, Xiao Zhang Heng was his grandmother's little tail, no matter how much grandma walked to **, there would always be the shadow of Xiao Zhang Heng behind. He always pestered his grandmother to tell him stories. The old man seems to have endless stories to tell, and he likes this smart grandson very much, so as long as Xiao Zhang Heng asks to listen to the story, his grandmother will tell him it.

Among these stories, Xiao Zhang Heng's favorite is the legend of the Big Dipper and the moon, he always looks up at the blinking stars in the sky, while listening to his grandmother, and from time to time asks his grandmother: Why don't the stars fall like apples? Are the stars afraid of rain?

Of course, his grandmother did not come up to the question of his clever grandson, which made him feel more and more that there would be countless treasures in the vast night sky, and at the same time, he also planted countless curious question marks in his young heart. Unable to get an answer from his grandmother, Xiao Zhang Heng eagerly read a book, hoping to find the answer he wanted from the book.

When he was ten years old, his grandmother and father died. Uncle sent Zhang Heng to study in the library. He knew how difficult it was for him to study, so he worked very hard.

Soon, Xiao Zhang Heng began to compose poems. His poems are often praised by his teachers. In order to increase his knowledge, Xiao Zhang Heng read a wide range of books.

One day, he saw a book called "Osprey Crown" and was fascinated by the four sentences in the book that determine the seasons according to the Big Dipper. Since then, he often looks up at the starry sky and observes the changes of the Big Dipper, and over time, he finds that the Big Dipper is revolving around a center, once a year. He said to himself:

Ah, I finally get it'The Big Dipper shifts'What's going on! Due to his diligence and inquisitiveness, as he grew up day by day, Zhang Heng's knowledge became richer and richer, and he finally became a scientist.

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Zhang Heng (78 139), known as Pingzi, was a scientist and writer in the Eastern Han Dynasty of China, and his birthplace was in Shiqiao Town, Nanyang County, Henan Province. His grandfather Zhang Kan was a taishou and was an honest official. His father died early, so Zhang Heng's family was very poor.

Zhang Heng has been diligent and studious since he was a child, coupled with his talent, he was famous in the township very early.

According to historical records, when he was 10 years old, he "could run through the five classics and six arts" and recite it by sight. He had a wide range of interests, dabbling in natural science readings and writing eloquently.

One day, Zhang Heng read four lines of poetry from a book of poems, describing the changes of the Big Dipper in the evening of each season: "The bucket handle points to the east, and the world is spring; Bucket handle guide, the world is summer; The bucket handle points to the west, and the world is autumn; The bucket handle points to the north, and the world is winter. "He thought it was so interesting.

The stars in the sky are shining, some are like kei, some are like buckets, some are like dogs, and some are like bears. It's simply wonderful. So Zhang Heng drew a celestial map according to the content of the poem and other books, and as long as there were no clouds every night, he silently observed the night sky carefully on the celestial chart.

How many mysteries there were in the starry sky of the desert, he observed, recorded, and pondered, his mind full of all kinds of questions, full of colorful fantasies. Later, he finally confirmed that the description in the four lines of the poem was not accurate enough, and in fact the bucket handle pointed to the northeast in early spring, but to the southeast in late spring.

The observation of the sun, moon and stars in his youth inspired Zhang Heng's determination to explore the mysteries of astronomy. Later, he served twice as the Taishi Ling, who was in charge of astronomy, and made brilliant achievements in this regard. According to the "Speech Senhai" record:

For the first time, he correctly explained that lunar eclipses are produced by the moon entering the earth's shadow; Observed and recorded 2,500 stars that can be seen in the Central Plains, and drew the first relatively complete star map in China; He created the world's first wind and ground motion instrument; Created a guide car, an automatic drum car, and a wooden bird that can fly for miles.

Zhang Heng, who was thirsty for knowledge, always felt that his knowledge was insufficient, and when he was less than 17 years old, he left his parents and went to study alone in other places. In the ancient capital of Chang'an, he visited the local places of interest and historical sites, and inspected the surrounding mountains and rivers, products and customs, and the state of the world. In Luoyang, Kyoto at that time, he met many learned friends, including Cui Ying, who was proficient in astronomy, mathematics, and calendar, and was also a very famous calligrapher.

Zhang Heng came to ask him for advice. It is precisely because of his open-minded and studious spirit that he has benefited a lot in all aspects. In addition to his outstanding achievements in astronomy, he also attracted worldwide attention in the study of science, and the wind and ground motion instrument he created was more than 1,700 years earlier than similar instruments in Europe.

He is also one of the six great painters of the Eastern Han Dynasty, and his "Erjing Fu" "Jing Si Fair, Ten Years is Completed", which is talked about by people.

In the first three years of Emperor Zhang Hengzhang's founding (78 AD), he was born in a dilapidated bureaucratic family in Shiqiao Town, Xi'e County, Nanyang County (now Shiqiao Town, fifty miles north of Nanyang City, Henan Province).

His grandfather, Zhang Kan, was a local official and served as the Taishou of Shu County and the Taishou of Yuyang.

When Zhang Heng was a child, his family had declined, and sometimes he had to rely on the help of relatives and friends.

It was this kind of impoverished life that enabled him to come into contact with the working masses of the lower strata of society and some realities of production and life, which brought a positive impact on his later scientific creation.

In mathematics, geography, painting, and literature, Zhang Heng showed extraordinary talent and extensive knowledge.

Zhang Heng is one of the representatives of the Hun Tian Theory in the middle of the Eastern Han Dynasty; He pointed out that the moon itself does not emit light, and that moonlight is actually a reflection of daylight; He also correctly explained the causes of the lunar eclipse, and implicitly recognized the infinite nature of the universe and the relationship between the speed of the planets and the distance from the earth.

Zhang Heng [1] observed and recorded 2,500 stars, created the world's first leaky and rotating armillary sphere that can perform celestial phenomena more accurately, the first instrument to test the first - the wind and ground motion instrument, and also manufactured a guide car, a leaky automatic memory drum car, a wooden bird that flew several miles, and so on.

Zhang Heng is the author of a total of 32 scientific, philosophical and literary works, including astronomical works such as "Lingxian" and "Lingxian Diagram".

In order to commemorate Zhang Heng's achievements, people named a crater on the far side of the moon "Zhang Heng Crater", and the asteroid 1802 was named "Zhang Heng Star" Guo Moruo, a famous Chinese writer and historian in the 20th century, commented on Zhang Heng: "Such a well-rounded figure is rare in world history.

Later generations called Zhang Heng a wooden saint.