At 15:45 on October 12th, the third class of " Tiangong Class " started. The Shenzhou 14 flight crew astronauts Chen Dong, Liu Yang, Cai Xuzhe gave lectures to the young people in space. Among them, Cai Xuzhe, a native of Shenzhou City, Hengshui City, Hebei Province, is the first astronaut in Hebei Province to enter space to perform a mission.
The Chinese space station , as a national space laboratory, is also an important space science education base. "Tiangong Classroom" is the first space science education brand launched by my country to give full play to the comprehensive benefits of space station . It aims to spread the knowledge of manned spaceflight and stimulate the interest of young people in science. The teaching activities are jointly sponsored by China Manned Space Engineering Office , the Ministry of Education, the Ministry of Science and Technology, China Association for Science and Technology , Central Radio and Television Station , and the China Science and Technology Museum and related research and test units of manned space engineering provide support. . "Tiangong Classroom" combines manned flight missions and is launched in series throughout the construction of China's space station and on-orbit operations. The Chinese astronaut serves as the "space teacher", and takes the form of collaborative interaction between heaven and earth to lead young people to explore scientific mysteries. Since the launch of "Tiangong Classroom", two space classes have been successfully held on December 9, 2021 and March 23, 2022, both of which have achieved good social response.
After the third class of "Tiangong Classroom" started, Cai Xuzhe was the first to fly into the new classroom of the class, the Wentian experimental module of the China Space Station, and appeared in front of the audience. During the course he taught, he worked as a space cameraman. He used the camera to lead the teenagers to visit the Wentian experimental cabin, and watched the capillary effect experiment in a microgravity environment demonstrated by Chen Dong and Liu Yang, the water polo becoming "lazy" experiment, the interesting drinking water in space, the wrench that can turn heads, and learned about plant growth. Invention project. During the interaction with the ground classroom, Cai Xuzhe actively and enthusiastically answered the questions of the students and explained their doubts.
"Is the growth cycle of plants in space different from those on the ground?" asked a student from the No. 1 Middle School in Heze City, Shandong Province. Cai Xuzhe replied that previous research found that the microgravity environment in space may cause changes in the growth cycle of plants. For example, the Arabidopsis carried in Tiangong 2 grows slower than the ground, but the life cycle is longer. "Can mechanical clocks and electronic clocks still be used normally in space?" a student from Luoyang No. 2 Senior High School asked. Cai Xuzhe replied that there is no problem with electronic clocks; as to whether mechanical clocks can be used, it depends on which working principle. A clock with a pendulum pendulum swinging back and forth would be unusable for the space station because it relies on gravity to do it. "How many colors do you see the earth in the universe? What is the most beautiful scene you see?" After listening to a question from a student at the Dali Youth Art School in Yunnan Province, Cai Xuzhe replied: "When the earth is illuminated by the sun, The blue ocean, the yellow-green land, the snow-covered mountains, and the large yellow desert are clearly visible. When the sun is not shining, the earth is also very beautiful, and you can see the lights of the city. If you ask me, the most beautiful scene is What? My favorite is the bright atmospheric glow in the outer circle of the planet. It shimmers on the edge of the earth, sometimes gold, sometimes blue, sometimes purple, and I have seen it many times, but every time Admiration."
"The strong motherland gives each of us the opportunity to realize our dreams." When the class was about to end,
Cai Xuzhe said that he hoped that everyone would work hard, persevere, pursue their dreams bravely, and concentrate their efforts to achieve in the great journey of the Chinese dream . "
Central Radio and Television Station made a live broadcast to the world. Cai Xuzhe's hometown, Shenzhou, , 109 schools, and more than 60,000 primary and secondary school students watched the live broadcast of the lecture enthusiastically. Shenzhou schools have previously planned and carried out aerospace Various themed activities such as painting, aerospace dream-themed composition and blackboard newspapers, spacecraft model hand-making, etc., and spacecraft models are also arranged in the classroom, creating a strong atmosphere. The Shenzhou Association for Science and Technology organized staff to display in various schools Space station model, explain space knowledge, do rocket simulation launch, and further stimulate students' interest in watching "Tiangong Classroom" and learning science, their passion for science, and their pride in aerospace power.
is in Cai Xuzhe's hometown primary school, where he was the primary school. Head teacher, 63-year-old retiredHuo's teacher, Jin Yan'e, came specially to watch the "Tiangong Classroom" with the children. She told the children about Cai Xuzhe's excellent grades and his willingness to help others. "Children, the future of manned spaceflight needs you, and the cause of scientific exploration needs you even more. I hope you have mountains and seas in your heart, stars in your eyes, and down-to-earth to create a more exciting future together." She encouraged the children to study hard and become a future leader in the future. Pillars of the motherland. Cai Xuzhe's sister also teaches here. "This way of teaching is very good," she said. "It has inspired children's curiosity, enhanced their interest in science, and cultivated children's space dreams." Effects and other experiments, lamenting the magic of aerospace technology. After the live broadcast, the students were still not satisfied, and discussed their views on microgravity in space with their peers in a low voice, expressing their yearning for the aerospace industry.
"Science and space collide, and the perfect combination of knowledge and wonder is all in the Tiangong classroom." Cheng Yihan, a fourth-grade student of Shenzhou Experimental Primary School, said: "Cai Xuzhe and other three space teachers taught us this class, let us Perceive the mysteries of the universe and experience the joy of exploration from the difference between heaven and earth. I have learned a lot of aerospace science knowledge." "Mr. Cai Xuzhe is a space cameraman and photographer, and he has photographed a lot of beautiful scenery of the earth. We hope that he will successfully complete various tasks and return triumphantly. , share with us." Zhang Yufa, a seventh-grade student at Shenzhou No. 3 Middle School, said: "Thanks to Cai Xuzhe and other three space teachers for their wonderful lectures. They are the sows of space dreams. Today, they sowed a seed in our hearts, Tomorrow we will surely bloom brighter flowers of dreams and bear sweeter fruits of spaceflight." The live broadcast of
"Tiangong Classroom" also deeply attracted the students of Shenzhou Middle School . "Today, space teachers such as Cai Xuzhe have unveiled the mystery of the Wentian experimental cabin for us through the sky classroom, giving us a deeper understanding of space plant experiments. Through space physics experiments such as water polo becoming 'lazy', they have We showed the magic of microgravity. We also experienced the charm of cooperation between heaven and earth through the sample collection tasks that astronauts and scientists cooperated with.” Li Jiajie, a second-year high school student, said: “The starry sky is vast, and exploration is endless. We look forward to' The Tiangong Classroom will start again, and I hope to learn more knowledge. I will study hard, exercise hard, and strive to contribute to the development of the aerospace industry and the construction of a strong aerospace country like Mr. Cai Xuzhe. I believe that the pace of Chinese exploration will go deeper in the future. A farther universe can better understand the essence of life and explore the unknown of the universe."
Authors: Li Hui, Zhang Bin
