Chapter 618: Old Peasants

The concept of science to save the country ran through his life, creating the miracle of science in the later Dragon Kingdom.

After studying at Tsinghua University in August of the same year, he went to the United States to study for a bachelor's degree at the University of Chicago, and then went to Harvard University to continue his doctoral studies at Harvard University.

Ye Qisun's first physical research work was to use the X-ray shortwave limit method to determine the Planck constant h.

After obtaining a degree in physics from Harvard University, Ye Qisun only took two years, and after obtaining a doctorate in one year, he traveled to Western countries to visit scholars in the physics field at that time to learn and exchange.

During his time abroad, he received many requests for employment from many countries, and many scholars favored him, but he refused them one by one, and returned to China in 1924 and received an invitation from his mentor Mei Yiqi to teach at Qingda University.

Mei Yiqi is a native of Tianjin, 9 years older than Ye Qisun, and he is one of the first batch of "Geng foreign students". After graduating from Worcester Polytechnic Institute in the United States in 1914, Mei Yiqi returned to Beijing, and became a professor of physics at Qing University in 1916, and president from 1931 until 1948, and later founded Hsinchu Tsinghua University on Baodao until his death in 1962.

Mei Yiqi is a typical humble gentleman, he is a very important enlightener and founder of modern education in China, and is known as "the eternal president of Qing University".

When he was a professor at Tsinghua University, when Ye Qisun was admitted to Tsinghua University again and studied at Tsinghua University, Mei Yiqi became Ye Qisun's mathematics and physics teacher, and these two courses were Ye Qisun's favorite. Mei Yiqi likes Ye Qisun's seriousness and diligence very much, and Ye Qisun also admires his teacher's humble gentlemanly demeanor and profound knowledge, and the friendship between teachers and students has since begun.

Mei Yiqi realized the importance of science to China at that time, and as the top university in China at that time, Qing University had an obligation to take the first step towards realizing the concept of a modern university.

However, in order to run a high-level university, you must first have high-level professors. When recruiting talents for the future physics department, Mei Yiqi's first thought was his student many years ago, Ye Qisun, who could seriously pick out the "mistake of a word" from the "business skills" of "Nine Chapters of Arithmetic".

Not only that, but he also brought his two senior apprentices at Southeast University, Zhao Zhongyao and Shi Ruwei (both of whom are masters and founders of modern physics) to Qingda together.

He established the Department of Physics of Tsinghua University and served as a professor and head of the department.

His father's influence made him know that one or two scientists could not save the country, what was needed was a group of scientists, and at that time the Dragon Kingdom had nothing to do with science, and the teaching conditions were extremely difficult, he was like an old farmer stationed in the wasteland, with a drop of sweat, waving a hoe again and again, planting seeds for the future of science in China, waiting for the day when it took root and sprouted.

At that time, the faculty resources of the Department of Physics of Tsinghua University were limited, so he personally wrote a letter to his classmates who studied abroad at that time to build the future of science in China, including Mr. Wu Youxun, who was well-known in the world scientific community, and a large number of famous scientists such as Zhao Zhongyao, Xiong Qinglai, Sa Bendong, Zhang Zigao, and Zhou Peiyuan.

In order to educate these people with peace of mind, Ye Qisun set their salaries higher than himself, and it was precisely because of these people that he laid the foundation for later Chinese science.

From 1924 to 1937, during the more than ten years, Ye Qisun and a group of colleagues cultivated countless outstanding successors for the Chinese scientific community, so that the discipline of science in the land of China from scratch to prosperity, for the later resistance to the Japanese invasion provided important scientific support.

Qian Xuesen studied railway mechanical engineering in China, but he studied aeronautical engineering when he studied abroad, in order to study abroad, Ye Qisun postponed Qian Xuesen's study abroad plan for a year.

The father of modern mathematics in China, Hua Luogeng dropped out of junior high school because of his poor family background, and could not afford to pay the tuition, during which he taught himself mathematics, Ye Qisun received his thesis, and overcame public opinion, and Hua Luogeng, who only had a junior high school education, was recruited into Qing University, and hired as a teacher, and then sent him to Cambridge University for further study.

Since then, there have been more extraordinary performances of Hua Luogeng, if there is no Ye Qisun, he is likely to be at the bottom of the society for the rest of his life. If it weren't for Ye Qisun's thirst for talent at that time, Hua Luogeng might have been at the bottom of society all his life, and he might have lagged behind the world in modern Chinese mathematics.

Hua Luogeng's memories of Ye Qisun in his memoirs are "I have been deeply loved by him all my life"

When Lee Tsung-dao was 19 years old, he was selected by Ye Qisun to study in the United States.

The staff was very surprised, because Lee Tsung-dao's face was too immature and looked like a big child.

Decades later, Tsung-Dao Lee, who had already won the Nobel Prize, visited China and offered to meet his mentor, but was rejected.

Because Li Zhengdao didn't know that China at that time was already in the midst of a catastrophe, and his Mr. Ye had been tortured to the point that he couldn't figure it out.

Li Shanbang wrote in his memoirs: "1921 (autumn) - 1925 (summer): Studying in the Department of Physics of Southeast University, Ye Qisun was my mechanics teacher at that time. Later, he introduced me to the Geological Survey to study earthquakes. ”

In other words, in the three semesters that Ye Qisun taught at Southeast University, he only taught Li Shanbang mechanics.

The latter became "the founder of earthquake science in the Dragon Kingdom and one of the earliest earthquake geophysicists". This is related to the last sentence in his resume, "Later, he introduced me to the Geological Survey Institute to study earthquakes": Ye Qisun not only taught Li Shanbang mechanics, he was also Li Shanbang's Bole.

"Marie Curie of the East", Chien-shiung Wu's mentor Shi Shiyuan recalled: "Mr. Ye personally attended the class. The classes he takes are upgraded in tandem with the students. I was in the first grade and he taught general physics in the first grade. I went up to the second grade, and he taught the second grade electromagnetism. I moved up to third grade, and he taught third grade optics. I was in the fourth grade and he took my dissertation. …… Mr. Yip is very serious in teaching. When encountering difficult points, he focuses on explanations, and sometimes asks questions to stimulate students' thinking. He stutters a bit, but that doesn't affect the effectiveness of his teaching."

With so many classes and so seriousness, there is an old saying "teach by word and deed", such a teacher is a panacea for students to become talents, and it is also because of this teaching impression that Shi Shiyuan taught 'Oriental Marie Curie' Wu Chien-shiung and became the light of Chinese and even women in the world.