Explore the magic space mechanics world, 2022 Fangshan science reporter's second live broadcast was successfully held

Author:Beijing Science and Technology Time:2022.07.12

In 2022, the second event of "Scientific Little Reporter+Exploring Fangshan" was successfully held. Gao Yunfeng, a professor at the School of Aerospace and Aviation College of Tsinghua University, led Fangshan Scientific reporter to explore the magic space mechanics world together.

Article/Reporter Zhao Tianyu New Media Editor/Lu Bingxin

On July 10, the second event of "Science Reporter+Exploring Fangshan" in 2022 was successfully held. This time, Gao Yunfeng, a professor at the School of Aeronautics and Aviation University of Tsinghua University, combined with space lectures in my country to bring a lecture "Space Lecture and the Scientific Principles behind the scientific principles behind" to the small reporter of Fangshan science, to explain the principles of physics and mechanics behind the magic phenomenon. Cultivate young people's divergent thinking and independent thinking consciousness.

As a key invitation to participate in this event, all teachers and students of Chengguan Primary School in Fangshan District participated in the live broadcast lessons throughout the process, and selected representatives of scientific reporters in our school to conduct in -depth exchanges and interaction with Professor Gao Yunfeng during the live broadcast activities. 195,000 audiences from live broadcast platforms such as broadcasting, Beijing Science and Technology News, and today's headline clients have been watched simultaneously online, and the event has been widely praised.

Talk about space lectures: the university question behind the small phenomenon

From 2012 to 2022, China gave a total of three space lectures. As a mechanical expert in domestic satellite track and gesture control, Professor Gao Yunfeng participated in the previous two space teaching plan demonstrations. Writing and other work.

As a pro -calendar of space lectures, Gao Yunfeng explained physics and mechanical knowledge to his classmates, and reviewed the similarities and differences in the content of space teaching. In response to the classic bridges and contents in space teaching, Gao Yunfeng made a detailed interpretation, showing the "university question" behind the small phenomenon, and well stimulated children's curiosity about exploring various physical phenomena in space and life.

Gao Yunfeng first explained the cause, principle and phenomenon it brought by the physical concept of "weightlessness" -tension. In our lives, we can only see a small dew. The slightly larger water droplets will collapse due to the stronger than the surface tension, but it is completely different in space.

Next, Gao Yunfeng explained in detail the scientific principles behind the classic bridge sections in space lectures: the single placing, gyroscope in the first space lecture, and the air rotation and table tennis in the second space teaching are There is a phenomenon that is completely different from the ground. The weightless phenomenon will also bring a special liquid surface tension, which are displayed in both space teaching -the first time is water ball demonstration, and the air bubbles stay in the water ball quietly when heated; the second time is water ball+ Due to the weight loss, the bubbles will not run out of the water ball, and a magical increase appears.

Gao Yunfeng said that space lectures aim to stimulate the majority of primary and secondary school students' love and longing for the universe and science; it is a display of Chinese use of space resources peacefully, and it is also a centralized display of my country's comprehensive national strength and aerospace technology. Behind the small phenomenon, there are physics and mechanics universities that are worth thinking and inquiry.

Talk about the school days: there is a goal of struggle, it is easier to approach

In the question session, scientific reporters answered questions such as "What are the connections with gravity and gravity" and "enumerating the example of inertia" proposed by the teacher in conjunction with the course itself. The physics knowledge outside of these books is well reflected in the divergence of scientific journalists' thinking and the breakthrough of courses.

In the interactive interview session, the students asked the students to "learn what are the use". Gao Yunfeng said that the material living conditions in junior high school were not rich, and there were few TV shows. Therefore It's mathematics. Now in life, due to work reasons, the most useful knowledge is physical and mathematical knowledge.

"When I was a kid, I had the habit of writing a diary. After a stack of paper planes, I wrote such a paragraph in the diary. The Academy of Aeronautics has been engaged in this aspect. " Gao Yunfeng encouraged students to encourage students to be interested in what she was a child, and then slowly worked in this direction and accumulate. Naturally, it was easier to get close to their goals. This is actually important for each of us.

(Picture from the Internet)

Talk about the spirit of innovation: solve new problems with new ideas

Speaking of the "innovation spirit" in the spirit of scientists, Gao Yunfeng tells a story of satellite launch to scientific reporters: Foreign countries once failed to launch a synchronous orbit satellite in foreign countries. Under the role of the earth's gravity, satellite recycling is very difficult. At this time, the spirit of innovation played a role. Scientists give full play to their ability to innovate, use the gravity of the moon to adjust the satellite, pull the track up, and finally collect it back. This is a breakthrough. Sexual innovation.

Therefore, in Gao Yunfeng's view, the core of innovation is whether you can have different ideas and use these ideas to solve some new problems. It is also whether this idea is different, constantly breaking the inherent thinking, and eventually there is no existence of existence Things become existing phenomena and principles.

When it comes to the person who has the greatest influence on himself in the process of growth, Gao Yunfeng admits that his father's guidance plays an important role.In Nanchang, Jiangnan, his hometown, the material life was relatively scarce when he was a child. Every time his father went on a business trip to Beijing or Shanghai, he would buy some popular science books or models for himself, and encouraged himself to make it.The study of the course played a very important role.In 2022, "Scientific Reporter+Exploring Fangshan" online science popularization activity combined with the "double reduction" requirements to start with scientific interests, inviting experts in the field of science popularization to improve the scientific writing, observation, expression, expression, expression, expression, expression, expression, expression, expression, expression, expression, expression, expression, and interactive questions.Inquiry and other comprehensive capabilities.In addition to online activities, scientific journalists will also carry out the science popularization base and the popular science exhibition hall to visit the experience activities in the summer.

Produced: Popular Science Central Kitchen