The development of physics has promoted the progress of science and technology. Modern physics has become the foundation of high technology. 1. Space physics, developed on the basis of Newtonian mechanics and the law of universal gravitation, can send spacecraft into space and make human beings realize their dream of flying. It also makes it possible for China people to visit the moon in nine days. Our country will land on the moon in 2007, when it will be Shenzhou VII. Yang Dewei is Shenzhou VI. You can get a glimpse of the law of gravity after learning it. Application of deflection law of charged particles in electric and magnetic fields in science and technology. Television picture tube, etc. After learning the deflection of charged particles in electric and magnetic fields, you will understand. ) knife. Such as nuclear magnetic resonance, ultrasound, X-ray machine, etc. 3. The study of nuclear physics makes the application of radiation possible. Medical radiotherapy. There are also many medical methods, such as the establishment of relativity and quantum mechanics to treat brain tumors in the 4th century and the early 20th century, which gave birth to modern physics and initiated the era of microelectronics technology. Semiconductor chip. Electronic computer. Without quantum mechanics, there would be no modern science and technology. In 1960s, laser was born. With the development of laser physics, laser has been widely used in manufacturing, medical technology and national defense industry. The familiar microcomputer CD is read by laser. Optical fiber, etc. Great breakthroughs were made in the research of high-temperature superconductors in the 1980s, which paved the way for the practical application of superconductors. Maglev train, etc. In the 1980s, China's research on high-temperature superconductivity was at the forefront of the world. 7. The nanotechnology developed in the 1990s enables people to design and rearrange atoms or atomic groups according to their own needs, so that they have the required characteristics. The application of nano-materials is a new and widely used frontier technology. The reverse color of terracotta warriors and horses of Qin Shihuang. 8. The development of life science is also inseparable from physics. Deoxyribonucleic acid (DNA) is an important substance existing in the nucleus, and it is the material basis for storing and transmitting life information. From 65438 to 0953, biologist Watson and physicist Crick successfully determined the double helix structure of DNA by X-ray diffraction in their laboratory in Cavendish. It can be said that the development of physics has promoted scientific and technological progress in various fields. Earth-shaking changes have taken place in human production and life. The development of physics has triggered industrial revolutions again and again, which has promoted the development of society and human civilization. It can be said that every great progress of society is closely linked with the development of physics. /kloc-in the middle of the 0/8th century, the steam engine was invented and improved on the basis of thermal development. The widespread use of steam engines has promoted the transformation of handicraft industry into mechanized mass production, making it possible to transport on land and at sea on a large scale. Greatly promoted the development of society. The ancients said: a thousand miles a day. With the use of trains and airplanes, everyone on the earth has realized the dream of "traveling thousands of miles a day" or even traveling to Wan Li. The use of the steam engine was the first industrial revolution. 1840, Faraday discovered the phenomenon of electromagnetic induction and gradually formed a complete electromagnetic field theory. The power industry developed on this basis has brought mankind into the electrification era and brought earth-shaking changes to human production and life. Just think about all the electric facilities such as electric lights, telephones, televisions and microcomputers that are used now. This is the second industrial revolution. In the 1970s, a major breakthrough was made in microphysics, which initiated the microelectronics industry and brought the world into the information age characterized by the application of electronic computers. This is the third industrial revolution. It can be said that every great progress of society is completed on the basis of the development of physics. Without the development of physics, there would be no great progress of human society and civilization.

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