When I was in primary school, once the teacher taught addition and asked the students to work out a problem. The topic is:1+2+3+...+97+98+99+100 = The teacher is thinking, now the children must count to class.
I used this as an excuse to go out, but Gauss stopped me! It turned out that Gauss worked it out, and Gauss told everyone the answer he worked out: 5050. Since then, the learning process of Gauss Elementary School has already surpassed other students, which laid the foundation for his future mathematics and made him a mathematical genius!
Second, Zu Chongzhi.
In 462 AD, Zu Chongzhi requested Emperor Xiaowu of Song Dynasty to issue a new calendar, and Emperor Xiaowu called ministers to discuss it. At that time, Dai Faxing, one of the emperor's minions, stood out against it and thought that it was deviant for Zu Chongzhi to change the ancient calendar without authorization.
Zu Chongzhi refuted Defarge on the spot with his own research data. Relying on the emperor's favor, Dai Faxing said arrogantly: "The calendar was formulated by the ancients and cannot be changed by future generations." Zu Chongzhi is not afraid at all. He said very seriously, "If you have a solid basis, argue it out. Don't scare people with empty talk. "
Emperor Xiaowu of Song wanted to help Dai Faxing, and found some people who knew the calendar to argue with Zu Chongzhi, but Zu Chongzhi refuted them one by one. However, Emperor Xiaowu of Song still refused to issue a new calendar. It was not until ten years after Zu Chongzhi's death that his Da Ming Li was put into practice.
Although the society was very turbulent at that time, Zu Chongzhi studied science tirelessly. His greater achievement is in mathematics. He once annotated the ancient mathematics book Nine Chapters Arithmetic and wrote a book Composition.
His most outstanding contribution is to get quite accurate pi. After a long and arduous study, he calculated pi between 3. 14 15926 and 3. 14 15927, becoming the first scientist in the world to calculate pi to more than seven digits.
Zu Chongzhi is a generalist in scientific inventions. He built a kind of compass, and the copper man in the car always pointed south. He also built a "Thousand-Li Ship" and tried it in Xinting River (now southwest of Nanjing). It can sail 100 Li a day. He also used hydraulic power to rotate the stone mill, pounding rice and grinding millet, which was called "water hammer mill".
In Zu Chongzhi's later years, Xiao Daocheng, who mastered the Song Guards, wiped out the Song Dynasty.
Third, Archimedes.
Archimedes (287 BC-2 BC12 BC), a famous scientist in ancient Greece, was taking a bath in the bathroom.
There was half a basin of steaming water in the bathtub. Archimedes sat down and suddenly felt airy. Hot water came straight out of the basin. "The water is much bigger." He stood up subconsciously. The water in the basin fell, and he sat down again childishly. The water rose again and overflowed the basin.
Suddenly, his eyes lit up, he jumped out of the bathtub, rushed out of the door naked and ran into the street shouting, "I know!" " I know! "Ah! Is this old man crazy? Look, he is naked.
In fact, Archimedes was not crazy. He solved an important secret and was a little carried away for a while. A few days ago, the king of Syracuse in Sicily in the Mediterranean asked a goldsmith to make a pure gold crown, which was very beautiful.
But the ministers whispered, "Who knows if it is pure gold?" After listening to this argument, the king weighed the crown, but the crown was as heavy as the gold given to the goldsmith, and it was impossible to judge whether there were any other metals in it. The king called the clever Archimedes and asked him to get to the bottom of it.
Archimedes got an inspiration when he took a bath. He felt that he could find out the secret of the crown at once. When Archimedes found that everyone was laughing at him, he looked down and realized that he was naked. He immediately returned to his house, put on a suit at random and entered the palace.
He did an experiment for the king-he found a pure gold nugget as heavy as a gold crown, two jars and plates of the same size, and then put the gold crown and gold nugget into jars filled with water respectively. When the water overflowed from the jar, they followed the plate. Finally, I weighed the water and found that there was not so much water overflowing.
Archimedes said to the king, "Now I can conclude that this crown is mixed with other metals." The king asked, "Why?" "The crown is as heavy as pure gold.
But if the crowns are pure gold, they should be the same size, and the same amount of water should be put into the pitcher and overflow. Now there is a lot of water overflowing from the jar where the crown is placed, which shows that the volume of the jade crown is larger than that of pure gold, so it can be seen that the crown is not pure gold. "
The king sent for a goldsmith to inspect it, and it was found that it was replaced by brass with the same weight and cast in the inner layer of the golden crown. The secret of Wang Guanzhong's adulteration was thus uncovered.
Fourth, Chen Jingrun.
1937, diligent Chen Jingrun was admitted to Huaying College in Fuzhou. At this time, during the period of War of Resistance against Japanese Aggression, Professor Shen Yuan, director of the Department of Aeronautical Engineering in Tsinghua University, returned to Fujian to attend the funeral, unwilling to stay in his hometown because of the war.
Several universities got the news and wanted to invite Professor Shen to give lectures. He declined the invitation. As he is an alumnus of Huaying, he came to this middle school to teach mathematics to his classmates in order to report to his alma mater.
One day, Teacher Shen Yuan told us a story in math class: "A Frenchman discovered an interesting phenomenon 200 years ago: 6=3+3, 8=5+3, 10=5+5, 12=5+7, 28= 5+23.
Every even number greater than 4 can be expressed as the sum of two odd numbers. Because this conclusion has not been proved, it is still a guess. Euler said: Although I can't prove it, I am sure this conclusion is correct.
From then on, Chen Jingrun became interested in this wonderful question. In his spare time, he likes going to the library. He not only read the counseling books in middle schools, but also eagerly read the textbooks of mathematics and physics courses in these universities. Therefore, he got the nickname "bookworm".
Verb (abbreviation of verb) Hua
Once, he went out to play with his neighbor's children, and they walked; Suddenly I saw an abandoned grave by the roadside, and there were many stone men and horses beside the grave. This immediately aroused Hua's curiosity, and he really wanted to find out. So he said to the neighbor's children:
"There may be some interesting things. Shall we go and see? " The neighbor's child replied, "ok, but only for a while." I'm a little scared. " Bold Hua said with a smile, "Don't be afraid, there are no ghosts in the world." With that, he ran to the grave first.
The two children studied the stone man and the horse carefully before they came to the grave. They groped around and found it interesting. Thinking Hua suddenly asked the neighbor's children, "How heavy are these stone men and horses?"
The neighbor's child looked at him puzzled and said, "How should I know? How can you ask such a stupid question? No wonder people call you' Luo Idiot'. "
Hua said disappointedly, "Can you think of a way to calculate?" The children in the neighborhood laughed and said, "Wait till you become a mathematician in the future!" ! But if you can become a mathematician, I'm afraid you will work at sunrise and rest at sunset. "
Despite the ridicule of the children next door, Hua firmly said, "I will definitely find a way in the future."