Pierre curie was born in a doctor's family in May 1859. In childhood and adolescence, I was thoughtful, hard to change my mind, taciturn and slow to respond, unable to adapt to the perfusion knowledge training in ordinary schools and unable to keep up with classes. People say he is mentally retarded, so he has never been to primary and secondary schools since he was a child. His father often took him to the countryside to collect samples of animals, plants and minerals, which cultivated his keen interest in nature and learned how to observe things and explain them. When Madame Curie 14 years old, his parents hired a math and science teacher for him. He has made rapid progress in mathematics and science. 16 years old, after entering the University of Paris for two years, she obtained a bachelor of science degree and a master's degree in physics. 1880, when he was 2 1 year old, he studied the characteristics of crystals with his brother Jacques Curie and found the piezoelectric effect of crystals. 189 1 year, he studied the relationship between magnetism and temperature, and established Curie's law: paramagnetic material's magnetization coefficient is inversely proportional to absolute temperature. In his scientific research, he also created and improved many new instruments, such as piezoelectric crystal scale, Curie balance and Curie electrometer. 1895 On July 25th, pierre curie married Marie Curie.
Marie Curie (1867165438+1October 7) was born in Warsaw under the rule of Russia, and her father was a middle school teacher. 16 years old, she graduated from Warsaw Middle School with a gold medal. She had to be a tutor for six years because her family couldn't afford to continue her studies. Later, with my own savings and the help of my sister, 189 1 went to Paris to study. At the University of Paris, she studied diligently under extremely difficult conditions. Four years later, she got two master's degrees in physics and mathematics.
In the second year after the Curie couple got married, that is, 1896, Bacquerel discovered the radioactive phenomenon of uranium salt, which aroused great interest of the young couple. Madame Curie was determined to study the nature of this unusual phenomenon. She first examined all the chemical elements known at that time and found that thorium and thorium compounds were also radioactive. She further examined the radioactivity of various complex minerals and unexpectedly found that the radioactivity of pitchblende was more than four times higher than that of pure uranium oxide. She concluded that uranium ore obviously contains a more radioactive element besides uranium.
Based on his experience as a physicist, Curie immediately realized the importance of this research achievement, put down his crystal research and joined Madame Curie in searching for new elements. Soon after, they determined that uranium ore contained not one element, but two undiscovered elements. 1in July, 898, they named polonium for the first time to commemorate Madame Curie's native Poland. Not long after, 1898 65438+ February, they named another element radium. They worked hard to obtain pure polonium and radium. I worked day and night in a broken shed for four years. I stirred the boiling pitchblende slag in the pot with an iron bar, and my eyes and throat endured the stimulation of smoke from the pot. After repeated refining, I got one tenth of radium from several tons of pitchblende slag. Due to the discovery of radioactivity, the Curies and Bacquerel won the 1903 Nobel Prize in physics.
1906, pierre curie died in a car accident at the age of 47. After pierre curie's death, Madame Curie endured great grief and succeeded her husband as a professor of physics at the University of Paris, becoming the first female professor at the university. She continued her research work on radioactivity. 19 10, she and French chemist Debel Nuo analyzed the pure radium element, and determined the atomic weight and position of radium in the periodic table. She also measured the half-lives of radon and other radioactive elements and sorted out the systematic relationship of radioactive element decay. Because of these great achievements, he won the Nobel Prize in chemistry at 19 1 1, becoming the only scientist who won the Nobel Prize twice in history.
The Curies personally experienced the physiological effects of radium, and they were burned by laser rays more than once. Together with doctors, they studied the application of radium in cancer treatment and started radiotherapy. During the First World War, she participated in the battlefield health service for the motherland Poland and the second motherland France, organized X-ray cars and X-ray studios to serve the wounded soldiers, and treated the wounded soldiers with radium, which played a great role.
After World War II, Madame Curie returned to Paris, where she established the Radium Science Institute to continue her research and train young scholars. In his later years, he completed the refining of polonium and actinium. Madame Curie has been engaged in radium research for 35 years without any protective facilities. In addition, during the war, she established an X-ray room for four years, which seriously damaged her health and caused her severe anemia. She had to leave her beloved laboratory on May 1934 and passed away on July 4 1934.
The curies were indifferent and humble all their lives. They don't like worldly compliments and compliments, and they don't care about personal reputation and status. After radium was discovered and successfully extracted, they did not apply for a patent and did not reserve any rights. They believe that radium is an element and should belong to all mankind. They disclosed their method of extracting radium to the whole world. It took them more than ten years to prepare more than one gram of radium, worth about100000 dollars, and all of them were handed over to the Radium Research Institute without taking a penny. One gram of radium donated to her by the American Women's Association was not for personal use, half was given to the French Radium Institute and the other half was given to the Warsaw Radium Institute. When radium was used to treat cancer, they could have become millionaires overnight, but they agreed not to take away all the material benefits of their invention. The purpose of their hard work is to obtain happiness for mankind from new discoveries.
Mendeleev and the periodic table of elements
What is the universe made of? The ancient Greeks believed that it was the four elements of water, earth, fire and air, and China believed in the five elements of gold, wood, water, fire and earth in ancient times. In modern times, people gradually realize that there are many elements, not just four or five. In the18th century, scientists have explored more than 30 elements, such as gold, silver, iron, oxygen, phosphorus and sulfur. By the19th century, 54 elements had been discovered.
People will naturally ask, how many elements have not been discovered? Do these elements exist separately or are they interrelated?
Mendeleev discovered the periodic law of elements and solved the mystery.
It turns out that the molecules are not a mob, but like a well-trained army, arranged in an orderly manner according to strict orders. How to arrange them? Mendeleev found that elements with equal or similar atomic weights have similar properties; Moreover, the nature and atomic weight of elements change periodically.
Mendeleev was very excited. He arranged more than 60 elements discovered at that time into a table according to atomic weight and properties, and found that every eight counts from any element were similar to the properties of the first element. He called this law "octave".
How did Mendeleev discover the periodic law of elements?
1834 On February 7th, Ivanovich Mendeleev was born in Polsk, Siberia. His father is the headmaster of a middle school. /kloc-entered the natural science education department of St. Petersburg Teachers College at the age of 0/6. After graduation, Mendeleev went to Germany for further study, specializing in physical chemistry. 186 1 returned to China and became a professor at St. Petersburg university.
Mendeleev found that the Russian textbook of Inorganic Chemistry was outdated, and the foreign textbooks could not meet the new teaching requirements, so he urgently needed a new inorganic chemistry textbook that could reflect the development level of contemporary chemistry.
This idea inspired the young Mendeleev. Mendeleev encountered a difficult problem when he wrote a chapter on the properties of chemical elements and their compounds. In what order do you arrange their positions? At that time, 63 chemical elements were discovered in the field of chemistry. In order to find a scientific classification method of elements, he had to study the internal relations between elements.
Studying the history of a subject is the best way to grasp the development process of this subject. Mendeleev has a deep understanding of this. He walked into the library of St. Petersburg University and sorted out countless volumes of original materials on the classification of chemical elements in the past. ...
Mendeleev grasped the historical context of chemists' research on element classification, and he was obsessed with day and night analysis and thinking. In the dead of night, the light was still on in Mendeleev's room on the left side of the main building of St. Petersburg University, and the servant pushed open the door of Mendeleev's study for safety.
"Anton!" Mendeleev stood up and said to the servant, "Go to the laboratory to find some thick paper and take the basket with you."
Anton is a loyal servant of Professor Mendeleev's family. He walked out of the door, shrugged inexplicably and quickly brought a thick roll of paper.
"Help me cut it open."
Mendeleev told his servant to start drawing squares on thick paper.
"All cards should be as big as this one. Start cutting, I want to write on it. "
Mendelia worked tirelessly. He wrote down the name of the element, the original quantity, the chemical formula and main properties of the compound on each card. The basket is gradually filled with cards. Mendeleev divided them into several categories and put them on a broad experimental platform.
In the following days, Mendeleev systematically arranged the element cards. Mendeleev's family was surprised to find that the professor who has always cherished time suddenly became keen on "playing cards". Mendeleev, like playing cards, put away the element cards every day, put them away and spread them out again, and played "cards" with a frown. ...
Winter goes and spring comes. Mendeleev did not find the inherent law in the chaotic element card. One day, he sat down at the table and fiddled with the "cards" again, shaking and shaking, and Mendeleev stood up like an electric shock.
Over the years, a completely unexpected phenomenon has appeared in front of him. The properties of each row of elements change gradually from top to bottom according to the increase of atomic weight.
Mendeleev's hands trembled with excitement. "That is to say, the nature of an element is related to the periodicity of its atomic weight." Mendeleev paced up and down the room excitedly, then quickly grabbed a notebook and wrote on it: "Try to arrange the list of elements according to their approximate atomic weight and chemical properties."
1at the end of February, 869, Mendeleev finally found that elements have periodic changes in the arrangement of chemical element symbols. In the same year, German chemist Meyer also made the periodic table of elements according to their physical and other properties. By the end of 1869, Mendeleev had accumulated enough information about the chemical composition and properties of elements.
What's the use of shadowless periodic table? It's extraordinary.
First of all, we can explore new elements in a planned and purposeful way. Because elements are arranged regularly according to the size of atomic weight, there must be undiscovered elements between two elements with different atomic weights. Mendeleev prepaid the existence of four new elements, namely boron-like, aluminum-like, silicon-like and zirconium-like. Soon, the prediction was confirmed. Later, other scientists discovered elements such as gallium, scandium and germanium. So far, people have discovered many more new elements than in the last century. In the final analysis, it all depends on Mendel's periodic table of elements. I believe that many new chemists will emerge among young friends, further opening the mystery of the micro-world.
Second, the atomic weight measured before can be corrected. Mendeleev revised the original quantity of a large number of elements (at least 17) when compiling the periodic table of elements. Because according to the periodic law of elements, many original quantities measured before are obviously inaccurate. Taking indium as an example, it is considered to be bivalent like zinc, so its atomic weight is determined to be 75. According to the periodic table of elements, it is found that both steel and aluminum are divalent, and its atomic weight should be 1 13. The vacancy just between calcium and tin has appropriate properties. Later scientific experiments confirmed that Mence's conjecture was completely correct. The most amazing thing is that in 1875, French chemist Boisbaudran announced the discovery of a new element gallium, with a specific gravity of 4.7 and an atomic weight of 59 points. According to the periodic table of elements, Mendeleev concluded that gallium was similar to aluminum in properties, with a specific gravity of 5.9 and an atomic weight of 68, and it was estimated that gallium was reduced by sodium. A person who has never seen gallium at all actually corrected the data measured by its first discoverer. The experimental results are very close to Mendel's judgment, with a specific gravity of 5.94 and an atomic weight of 69.9. According to the method provided by Mendel, gallium was purified by Brinell method. The original inaccurate data is due to the sodium in the scale, which greatly reduces its atomic weight and specific gravity.
Third, with the periodic table of elements, human beings have made a new leap in thinking and understanding of the material world. For example, through the periodic table of elements, the law that quantitative change causes qualitative change is strongly confirmed, and the change of atomic weight causes qualitative change of elements. For another example, from the periodic table of elements, it can be seen that the opposing elements (metals and nonmetals) obviously have a unified and transitional relationship while opposing. There is a law in philosophy that things always spiral from simple to complex.
Type up. The periodic table of elements is like this. The discovered elements are divided into eight families, and each family is divided into five cycles. The elements in each cycle and each category are arranged according to the atomic weight from small to large, and the cycle is repeated.
The periodic law of elements connects the three elements in one fell swoop, which makes people realize that the change of chemical elements is a process from quantitative change to qualitative change, completely breaks the original view that various elements are isolated and unrelated to each other, liberates chemical research from the irregular listing of scattered facts of countless individuals, and thus lays the foundation of modern chemistry.
Space elite Qian Xuesen
The development of China's space industry is linked to Qian Xuesen's name. Qian Xuesen 19 1 1 was born in Shanghai, and 1934 graduated from Shanghai.
Jiaotong University. 1935 studying in the United States, 1938 studying in Feng, a famous expert of California Institute of Technology? Carmen got her doctorate under her guidance. From 65438 to 0943, he cooperated with Marina to complete the review and preliminary analysis of the research report on long-range rockets, which laid a theoretical foundation for the successful development of surface-to-surface missiles and sounding rockets in the United States in the 1940s. Its design idea has been used in the practical design of sounding rocket of female soldier corporal and missile of Private A, and the experience gained directly led to the successful development of ground-to-ground missile of American sergeant, and became the pioneer of anti-ballistic missile of American Polaris, militia, Poseidon and composite propellant rocket engine.
Since then, Qian Xuesen has made many pioneering contributions to aviation engineering theory in ultra-high speed transonic aerodynamics and thin shell stability theory. The theory of high-speed sonic flow put forward by him and Carmen provides a basis for aircraft to overcome sound barrier and thermal barrier. The Carmen-Qian Xuesen formula named after him and Carmen has become an authoritative formula in aerodynamic calculation and has been used in aerodynamic design of high subsonic aircraft.
Because of his outstanding achievements in the theory of rocket technology and 1949' s functional assumption of nuclear rocket, he was recognized as an authoritative scholar of rocket technology at that time.
From 65438 to 0955, Qian Xuesen broke through the obstacles of the American authorities and returned to the motherland to devote himself to the creation of China's space industry. 1956, 17 In February, he submitted to the State Council his opinions on the establishment of China's defense industry, and put forward an extremely important implementation plan for the development of China's rocket technology. In June 5438+10, he was ordered to set up the first rocket research institute in China, the Fifth Research Institute of the Ministry of National Defense, and served as the first president.
Then, he served as the technical director of space development for a long time. With his participation, China successfully launched its first imitation rocket in June 1960+0 1, 1964.
On September 29th, the flight test of China's first self-designed medium and short-range rocket was successful. 1965, Qian Xuesen suggested that the development plan of artificial satellite should be made and put into the national task, so that China's first satellite could travel in space in 1970.
In the early 1950s, Qian Xuesen developed cybernetics into a technical science-engineering cybernetics, which provided a foundation for the guidance theory of aircraft. He also founded the widely used system engineering theory.
Because of Qian Xuesen's outstanding achievements in the field of space science and technology in China,1June 1989, the International Institute of Technology awarded him the Rockwell Medal. 199 1 year
On June+10, 5438, our government awarded him the title of "Outstanding Contribution Scientist".
Zhuge Liang studied under Mr. Si Mahui, a water mirror, when he was a teenager. Zhuge Liang studied hard and used his head diligently. Not only Si Mahui appreciates him, but also Si Mahui's wife values him very much. She likes this studious and brainy boy. At that time, there were no clocks, and time was recorded by sundials. There is no sun on rainy days. Time is not easy to grasp. In order to record time, Si Mahui trained cock to crow on time by feeding regularly. In order to learn more, Zhuge Liang wanted Mr. Wang to extend the lecture time, but Mr. Wang always relied on the crow, so Zhuge Liang thought: if the crow time is extended, Mr. Wang's lecture time will be extended. So he brought some food in his pocket when he went to school. It is estimated that when the chicken is about to crow, he will feed it some food, and the chicken will not crow when it is full.
Deng Jiaxian (1924- 1986) is a famous nuclear physicist and an academician of China Academy of Sciences.
Deng Jiaxian's grandfather was a famous calligrapher and seal engraver in Qing Dynasty, and his father was a famous aesthete and art historian. After the July 7th Incident, the whole family stayed in Beijing, 16-year-old Deng Jiaxian went to Jiangjin, Sichuan with her sister to finish high school. 194 1 to 1945 studied in the Physics Department of National Southwest Associated University, and studied under famous professors such as Wang Zhuxi and Zheng Huachi. 1945 After the victory of the Anti-Japanese War, Deng Jiaxian taught in the Physics Department of Peking University.
1June, 948, Deng Jiaxian went to Purdue University, Indiana, USA for postgraduate study, and received his Ph.D. in physics in June, 950. On the 9th day after he got his degree, he boarded the ship returning home. After returning to China, Deng Jiaxian worked as an assistant researcher in the Institute of Modern Physics of Chinese Academy of Sciences, engaged in nuclear theory research. 1958 In August, he was transferred to the newly-built Nuclear Weapons Research Institute as the director of the theoretical department, responsible for leading the theoretical design of nuclear weapons. Later, he served as deputy director and director of the Institute, vice president and dean of the Ninth Research and Design Institute of the Ministry of Nuclear Industry, deputy director of the Science and Technology Committee of the Ministry of Nuclear Industry, and deputy director of the Science and Technology Committee of the Commission of Science, Technology and Industry for National Defense.
Deng Jiaxian is the main organizer and leader of China's nuclear weapons research and development, and is known as the "father of the two bombs". In the research of atomic bomb and hydrogen bomb, Deng Jiaxian led the basic theoretical research of detonation physics, fluid mechanics, equation of state and neutron transport, completed the theoretical scheme of atomic bomb, and participated in guiding the detonation simulation test of nuclear test. After the success of the atomic bomb test, Deng Jiaxian organized forces to explore the design principles and selected technical approaches of the hydrogen bomb. He led and personally participated in the development and experiment of China's first hydrogen bomb in 1967.
Deng Jiaxian and Zhou's Summary of Theoretical Research on China's First Atomic Bomb is a groundbreaking basic work on the theoretical design of nuclear weapons, which summarizes the research results of hundreds of scientists. This work is not only instructive for future theoretical design, but also an introductory textbook for training researchers. Deng Jiaxian also made an important contribution to the study of the equation of state at high temperature and high pressure. In order to train young researchers, he also wrote many lectures on electrodynamics, plasma physics, spherical concentric detonation wave theory and so on. Even after assuming the heavy responsibility of the dean, he began to write Quantum Field Theory and Group Theory after work.
Deng Jiaxian is an outstanding representative of intellectuals in China. For the sake of the prosperity of the motherland and the development of national defense scientific research, he is willing to be an unknown hero and has struggled in obscurity for decades. He often appears in the most dangerous positions at critical moments, regardless of personal safety, which fully embodies his lofty and selfless dedication. He has made outstanding contributions to the development of China's nuclear weapons, but little is known. People didn't know his deeds until after his death.
He is mainly engaged in nuclear physics, theoretical physics, neutron physics, plasma physics, statistical physics and fluid mechanics, and has made outstanding achievements. Since 1958, he has organized and led the basic theoretical research on detonation physics, fluid mechanics, equation of state, neutron transport and so on. And made a lot of simulation calculation and analysis on the physical process of the atomic bomb, thus taking the first step of China's independent research and design of nuclear weapons, leading to the completion of the theoretical scheme of China's first atomic bomb, and taking part in guiding the initiation simulation test before the nuclear test. Immediately after the success of the atomic bomb test, we organized forces to explore the design principle of the hydrogen bomb, chose technical approaches, organized leaders and personally participated in the development and test of the first hydrogen bomb in China in 1967. From 65438 to 0979, Deng Jiaxian was the director of the Institute of Nuclear Weapons. 1984, China successfully conducted the second generation of new nuclear weapons test in the deep desert. The next year, his cancer spread beyond saving, and his request on National Day was to visit Tiananmen Square. On July 6th, 1986, Li Peng, then Vice Premier of the State Council, went to the hospital to award him the National May 1st Labor Medal. 1On July 29th, 986, Deng Jiaxian died of systemic hemorrhage. 1999 was posthumously awarded the "two bombs and one satellite" meritorious medal.
Write a comparison between Deng Jiaxian and Oppenheimer, the "father of the atomic bomb" in the United States. Oppenheimer is a sharp-edged top figure. Deng Jiaxian is the most inconspicuous figure, honest and honest, sincere and frank, and never proud. He is "the most simple peasant in China". People know that he is selfless and absolutely trusts him, which is why he can lead everyone to make historic contributions. Draw a conclusion from the comparison: "Deng Jiaxian is the son with the highest dedication bred by thousands of years of traditional culture in China." "Deng Jiaxian is the ideal party member of China's * * * production party." It shows that only China's traditional cultural background can produce Deng Jiaxian's noble character, and only Deng Jiaxian can adapt to the needs of China society and make great contributions to the development of the nation. Comrade Deng Xiaoping said: "I am the son of the people of China, and I love my motherland and people." Deng Jiaxian's temperament, personality and dedication are consistent with Comrade Xiaoping's voice. In the fourth part, the author writes that he got the news that China's atomic bomb project was completed on his own without any foreigners, so his feelings were greatly shocked and he burst into tears for a moment. This is the author's 50-year pride in the Chinese nation and his friend Deng Jiaxian.
Deng Jiaxian, 1924, was born in Huaining County, Anhui Province, with a scholarly family. The following year, he went to Beijing with his mother and grew up beside his father, a philosophy professor in Tsinghua and Peking University. He entered primary school at the age of 5 and laid a good foundation of Chinese and western culture under the guidance of his father. 1935, he was admitted to Chongde Middle School and became best friends with Yang Zhenning, who was two classes older than him and was a neighbor in Tsinghua. Deng Jiaxian was deeply influenced by the patriotic national salvation movement on campus. 1937 After the fall of Beiping, he secretly joined the Anti-Japanese Party. Under the arrangement of his father, he went to Kunming, the rear area, with his sister, and 194 1 was admitted to the Physics Department of The National SouthWest Associated University.
1945 When the Anti-Japanese War was won, Deng Jiaxian graduated from the National Southwest United University and joined the "People's Youth", a peripheral organization of Kunming's * * * production party, and devoted himself to the struggle for democracy and against the dictatorship of the Kuomintang. The following year, he returned to Peiping, was employed as a teaching assistant in the Department of Physics of Peking University, and served as the chairman of the staff union of Peking University in the student movement. With the ambition of learning more skills to build a new China, he passed the postgraduate examination in the United States on 1947 and entered the graduate school of Purdue University in Indiana the following autumn. Because of his outstanding academic performance, he finished all the credits in less than two years and passed the doctoral thesis defense. At this time, he was only 26 years old and was called "Doctor Doll".
1950 In August, nine days after receiving his doctorate in the United States, Deng Jiaxian declined the detention of his tutor and friends at the same school and decided to return to China. In the same year 10, Deng Jiaxian came to the Institute of Modern Physics of Chinese Academy of Sciences as a researcher. In the following eight years, he studied China's nuclear theory. 1953, he married Xu Luxi. Xu Luxi is the eldest daughter of Xu Deheng, an important student leader in the May 4th Movement and later vice chairman of the National People's Congress Standing Committee (NPCSC). 1954, Deng Jiaxian joined the China * * * production party.
/kloc-in the autumn of 0/958, Qian Sanqiang, vice minister of the Second Machinery Department, found Deng Jiaxian and said that "the country is going to enlarge firecrackers" and asked him if he would like to take part in this work that must be kept strictly confidential. Deng Jiaxian agreed without hesitation. After returning home, he only told his wife that he wanted to transfer his job. He can no longer take care of his family and children, and communication is difficult. The wife was influenced by patriotic thoughts since she was a child, and understood that her husband must engage in work of great significance to the country and expressed her firm support. Since then, Deng Jiaxian's name has disappeared in publications and foreign exchanges, and his figure only appears in the heavily guarded deep courtyard and the Gobi Desert.
After Deng Jiaxian became the director of the Theory Department of the Ninth Research Institute of the Second Machinery Department, he first selected a group of college students to prepare relevant Russian materials and atomic bomb models. 1in June, 959, the Soviet government terminated the original agreement, and the central government made up its mind to make atomic bombs, hydrogen bombs and satellites by itself. Deng Jiaxian served as the head of the theoretical design of the atomic bomb, and at the same time deployed colleagues to study and calculate separately. He also took the lead in tackling key problems. When Deng Jiaxian faced a figure of atmospheric pressure left by Soviet experts, with the help of Zhou, he overturned the original conclusion through rigorous calculation, thus solving the key problem related to the success or failure of China's atomic bomb test. Mathematician Hua later said that this was the result of the "World Mathematical Problem Set".
Deng Jiaxian not only works hard in secret research institutes, but also often goes to the Gobi proving ground where sand and stones fly. 1964 10, China successfully exploded the first atomic bomb, and finally he signed the design scheme. He also led the researchers to quickly enter the explosion site to take samples after the test to confirm the effect. He studied hydrogen bombs with Yu Min and others. According to the "Deng Yu Plan", the hydrogen bomb was finally made and successfully tested two years and eight months after the atomic bomb exploded. Compared with 8 years in France, 7 years in the United States and 4 years in the Soviet Union, this has created the fastest speed in the world.
1972 Deng Jiaxian was the vice president of the nuclear weapons research institute, and 1979 was the president. 1984, China successfully conducted the second generation of new nuclear weapons test in the deep desert. The next year, his cancer spread beyond saving, and his request on National Day was to visit Tiananmen Square. 1986 July 16, the State Council awarded him the National May 1st Labor Medal. On July 29th of the same year, Deng Jiaxian passed away. His last words are still about how to work hard on cutting-edge weapons and exhort: "Don't let others leave us too far away ..."
Although Deng Jiaxian has been the leader of nuclear testing for a long time, he appeared in the front line at the most critical and dangerous time with the spirit of being extremely responsible for his work. For example, the life and death of nuclear weapons, such as inserting detonators and processing uranium balls, are all at a dangerous moment, which not only strengthens management, but also gives great encouragement to operators.
Once, a parachute accident occurred during the flight test, and the atomic bomb fell to the ground and cracked. Deng Jiaxian knew the danger well, but he grabbed it by himself and took the broken atomic bomb fragments in his hand for careful inspection. As a medical professor, his wife knew that he had the cracked atomic bomb and forced Deng Jiaxian to return to Beijing for inspection. It was found that there were radioactive substances in his urine, liver damage and radioactive substances in his bone marrow. Subsequently, Deng Jiaxian still insisted on returning to the nuclear test base. When struggling, he insisted on installing the detonator himself, and for the first time, he gave an order to the people around him with the authority of the dean: "You are too young to leave!" 1985, Deng Jiaxian finally left lop Nur and returned to Beijing, still wanting to attend the meeting. The doctor forced him to be hospitalized and told him that he had cancer. He collapsed feebly in his hospital bed, facing the comfort of his wife and defense minister Zhang Aiping, and said calmly, "I knew this day would come, but I didn't expect it to come so soon." The Central Committee tried its best, but it couldn't save his life. Shortly before Deng Jiaxian died, the organization provided him with a private car. He just sat in with the help of his family and turned around a little, indicating that he had enjoyed the treatment given by the state. 0/3 years after his death and on the eve of the 50th anniversary of the National Day in 1999, the CPC Central Committee, the State Council and the Central Military Commission posthumously awarded Deng Jiaxian the gold medal of "Two Bombs and One Satellite".