Recently, founder, chairman and CEO of the board of directors, Zhang Chaoyang, Physics, to the Department of Physics of the Physics Department of Tsinghua University.Coinciding with the third anniversary of the "Physics Course of Zhang Chaoyang", he returned to his alma mater with a new science work and deduced the principles of quantum mechanics in the third -volume new book on MRI.
At the scene, Zhang Chaoyang summarized the motivation of the physics class for three years: with the meaning of doing this meaning, interest in physics, and the inspiration of live interactive learning.He said that physics science is a new attempt for him in recent years. Through the three -dimensional new media combination of live broadcasts, short videos, text, and books, the basic physical knowledge in the ivory tower becomes a cultural phenomenon that the public cares.A better effect.
This offline get out of class focuses on the nuclear magnetic resonance that is known as the "Nobel Prize Harvest Machine". As an empirical evidence of the success of quantum theory to industrial practice, it is a major progress of basic science and engineering technology.During the live broadcast, Zhang Chaoyang used quantum mechanics to solve the spin system in various magnetic field backgrounds.Regarding the changes in the rotating magnetic field, the existence of energy is no longer conservative and conventional methods failure, Zhang Chaoyang introduced the "reference system change" and successfully obtained the core formula of MRIs resonance imaging technology.He emphasized that "MRI is a spin of proton spin, which has nothing to do with nuclear radiation."
Subsequently, Zhang Chaoyang and the students on the scene have further developed the theoretical principles and applications of nuclear magnetic resonance at the scene.Discussion.Zhang Chaoyang explained that the signal strength and frequency of MRIs resonance are related to the number of proton and the environment, which can accurately "see" the material structure.He also pointed out that unlike X -ray using ray detection, the nuclear magnetic resonance detection technology is more powerful and more complicated. However, because the magnetic field is too strong, it can cause metal magneticization. Therefore, it is dangerous not to bring metal when doing MRI scanning.
On the day of the event, Zhang Chaoyang also presented a series of books in the "Physics Course of Zhang Chaoyang" to his alma mater.Duan Wenhui, the director of the Department of Physics of Tsinghua University, issued a commemorative certificate to Zhang Chaoyang, saying that "China needs such people." In August last year, Zhang Chaoyang also returned to his alma mater to give a speech and opened a college in the physics class.
In the past three years, Zhang Chaoyang has developed the world with basic mathematics and physical knowledge, including basic theories such as electric power, quantum mechanics, and pairThe discussion of natural mysteries such as the moisture and the doomsday of the earth, and the physical principles behind the industrial fields of medical equipment and automobiles are also analyzed. The three subjects published by their publishing are collected by the Chinese National Library.Academician of the Chinese Academy of Sciences, Sun Changxun, academician of the Academy of Sciences of the National Sciences, has recommended, "From the perspective of spreading the spirit of science or the popularity of general education, this book is very meaningful." Previous SeptemberOn the 1st, the first volume of the "Zhang Chaoyangs Physics Course" was held in the third book (quantum mechanics). The new book was held in the National Library. The series was officially collected by the National Library.At the scene, Zhang Chaoyang dedicated the content of the third volume of the new book, and delve into the solid ratio of the "milestone" issue of quantum mechanics.
As the advanced work of the science book series of "Zhang Chaoyangs Physics Course", the third volume of the new book focuses on quantum mechanics.The nucleus of the atomic nucleus is unable to reach the macro law of the white dwarf from the structure details of the atomic molecule to the transformation of the material state transition.The field is richer in content.
The third volume of the new book is divided into 13 chapters. The content is organized from the 129th to the 184th issue of the Sohu Video Physical Live Class.According to Zhang Chaoyang, the book provides different patrol routes in the ancient city from interesting issues, which can be used as auxiliary readings outside the university science and technology textbook.Compared with the first two volumes, the third volume of "The Physics Course of Zhang Chaoyang" uses more academic tools, including partial differential equations, matrix diagonalization, changing points, etc., showing the beauty of the fusion of mathematics and physics.
值得注意的是，直播近三年，《张朝阳的物理课》已开展了220余期课程，在线时长超过22000分钟，形成了集直播、回放、短The three -dimensional dissemination matrix of videos, text and books has gradually deepened to a more vertical professional field, becoming the representative force of domestic physics science popularization. Zhang Chaoyangs actions in physics science more than that. On July 15 this year, at the "Second International Basic Science Conference Physics Night", more than 500 top scientists, scholars, and the majority of scientific enthusiasts in the physics fields around the world participated.On the same day, Qiu Chengtong, Edward Witten, Cumrun Vafa, Alexei Kitaev, Subir Sachdev, Xu Yihong, Wang Yifang, Zhang Xinmin and other world -renowned physicists attended the event. Zhang Chaoyang, as the representative power of domestic physics popularization, was also invited to participate.Scientists communicate with the stage.
The round table forum link, Edward Witten, Alexei Kitaev, Subir Sachdev, Cumrun Vafa, Xu Yihong, Wang Yifang, Zhang Xinmin, Zhang Chaoyang and other top scientists at home and abroad and popular science expertsDiscuss the hot issues of current physics, and imagine the expectations of the development of physics in the next ten years.
Zhang Chaoyang believes that we are at the center of the storm of the artificial intelligence revolution. In ten years, artificial intelligence will develop to a fairly advanced stage, and even the human brain cannot understand.Therefore, it is believed that artificial intelligence can help humans solve problems such as condensed physics, new materials, and new structures.He also said, "Innovative thinking does not necessarily have to accumulate based on a lot of knowledge. It is important to take action first, actively think about problems, and dare to ask questions to get the opportunity to familiarize themselves with knowledge and become experts in this area." /p>
Talking about the causes and gains of the live broadcast of physical courses, Zhang Chaoyang believes that it is important to follow the "10,000 hours theory". "When you decide to do one thing, the most important thing is the most important thingTo persist, to a certain extent for a long time, the amount of quantity will cause qualitative change.The three keyword summary of live interaction "Summary of the three keywords adheres to the science of physics.He said that it was the meaning of doing this, his interest in physics, and the inspiration of live interactive learning that made his physical study efficiency extremely high. "Three years have quickly touched the basic physics."He hopes to contribute to the content of the Chinese Internet physics in terms of video and text. "I have a sense of accomplishment." In the future, he will continue to study gravitational waves and cosmic studies on the basis of a general theory of relativity.
