At the beginning of March, spring is in full swing. At the same time that the students returned to campus to start the new semester, they also ushered in the first space class of the Year of the Tiger. On the afternoon of March 23, Shenzhou 13 astronauts Zhai Zhigang, Wang Yaping, and Ye Guangfu cooperated with each other on the China Space Station to bring the second lesson of the unique "Tiangong Classroom" to friends large and small.
What is the content of the second lesson of "Tiangong Classroom"? What are the similarities and differences compared to previous space lectures? What will be the changes in the future "Tiangong Classroom"? Nandu Big Data Research Institute will take you to see it together.
The second lesson of "Tiangong" lasts about 1 hour
The astronaut answered interesting questions from netizens
Combing found that as of March 23, 2022, there have been four space lectures in human history, in addition to the first space lectures, Chinese astronauts have "contracted" the last three lectures, and today's new "Tiangong Classroom" The second lesson is the fourth space lecture in human history.
In terms of teaching time, on August 14, 2007, the American Barbara Morgan gave the first human space lecture on the International Space Station, which lasted about 25 minutes. On the morning of June 20, 2013, the Shenzhou 10 astronaut team conducted China's first space lecture in the Tiangong-1 experimental module, which lasted about 51 minutes. On December 9, 2021, the first lesson of "Tiangong" lasted about one hour. The second lesson of this "Tiangong" will start at 15:40 on March 23, 2022 and last until about 16:43, with a total duration of about one hour.
Judging from the location of the teaching, this space teaching activity, like the first lesson of the "Tiangong", is still in the Tianhe core module of the Chinese space station, and continues to adopt the method of dialogue between heaven and earth. In addition to the main ground classroom of the China Science and Technology Museum, two ground sub-classrooms have been set up in Urumqi, Xinjiang and Lhasa, Tibet, and the Shenzhou 13 astronaut crew interacts with all sectors of society, especially the majority of teenagers, further narrowing the distance between teenagers and manned spaceflight, perceiving the mysteries of the universe from the differences between heaven and earth, and experiencing the fun of exploration.
It is worth mentioning that, continuing the tradition of the first lesson of "Tiangong", the Central Radio and Television Corporation has broadcast the whole network and tv broadcast of the second lesson of "Tiangong" to the whole world, and the astronauts have also answered interesting questions from netizens about "how is tears shed in the space station" and "whether the skin will get better without gravity".
Showcasing the magic of liquids and other phenomena in weightless environments
"Ice Pier" into an Experimental "Teaching Assistant"
On December 9 last year, the Shenzhou 13 astronaut crew brought a wonderful first lecture "Tiangong Classroom" to the majority of teenagers on the China Space Station, space cytology experiments, space turning, buoyancy disappearance, liquid surface tension demonstration... The magical phenomena in space are impressive, and the space science class is very beneficial.
So how is the content of the second space lesson decided? According to the China Manned Space Engineering Office, after the "Tiangong Classroom" was taught in space for the first time, all sectors of society widely participated in the collection of space teaching content through the news media and the Internet. The content of the second space lecture was widely selected from the opinions and suggestions collected, and carefully designed in combination with the conditions of China's space station facilities.
Like the first lesson, in the second lesson of "Tiangong", the phenomenon of liquid in a weightless environment is still one of the main contents of the class. The second lesson of the "Tiangong Classroom" set up a total of 6 links, the astronauts demonstrated the space "ice and snow" experiment, the liquid bridge demonstration experiment, the water and oil separation experiment, the space parabolic experiment in orbit, and introduced and displayed the space science facilities, and interacted with the heavens and the earth, answering the questions of netizens and children in real time.
Echoing the Beijing Winter Olympics and Winter Paralympic Games, which have just ended, is a highlight of this class. At the beginning of the course, Teacher Wang Yaping demonstrated to everyone the space "ice and snow" experiment - the phenomenon of saturated liquid crystallization in weightless state, turning the "water ball" into an "ice ball". In the space parabolic experiment, the Beijing Winter Olympic mascot "Ice Pier" made a surprise appearance, becoming the experimental "teaching assistant" and "personally" demonstrating the parabolic trajectory in the weightless state.
On the day before the official opening of the Beijing Winter Olympics, Mr. Wang Yaping also brought the "Tiangong Classroom" science experiment class to everyone on the China Space Station: through chemical experiments, the five Olympic rings were "changed" on the space station, and the Chinese Olympic athletes were blessed to break through themselves in the Beijing Winter Olympic Games, faster, higher and stronger.
In addition, in the space station scene display link, the first lesson of "Tiangong", the astronauts showed everyone the scene of work and life in orbit, and this time they mainly introduced the space science facilities such as high and micro gravity and containerless experimental cabinets in the core cabin of the space station, and showed the progress of space science (test) tests that had been carried out in this mission.
According to Li Yinghui, researcher of the China Astronaut Training Center and deputy chief designer of the astronaut system of the manned space project, the Shenzhou 13 mission completed more than 20 (in orbit) scientific experiments on the basis of Shenzhou 12. On the one hand, these experiments revolve around the new technology of astronaut health monitoring, on the other hand, around the new discoveries of new scientific knowledge, and the third around the accumulation of data, and complete a series of innovative research. Relying on the Chinese space station, the mainland established a long-term cell culture system and cell model under space conditions for the first time during the shenzhou 13 multiplication period, observed the contraction process of cardiomyocytes in the world for the first time in the weightless environment, and completed the suspension culture experiment of skin stem cells under long-term weightless conditions in the world. These cell space experiments will help human beings better understand the mysteries of life such as public health, human regeneration and aging, including human longevity and the occurrence of heart disease.
In the division of labor in space teaching, the three astronauts of the Shenzhou 13 group have cooperated with each other for the second time to complete the space teaching. In this lecture, female astronaut Wang Yaping continued to serve as the keynote speaker, commander Zhai Zhigang continued to serve as a cameraman, and astronaut Ye Guangfu was mainly responsible for the introduction and display of space science facilities, and continued to act as a "tool person" for the experiment, acting as an "artificial centrifuge" in the water and oil separation experiment to assist in the experiment.
Compared with the first lesson, the interaction between heaven and earth in the second lesson of "Heavenly Palace" is more frequent. After the experiment, the three "space teachers" answered a total of 10 questions in real time, including "Can the water in space boil", "Can the moon seen on the space station be the same as the earth", "Can you send fruit flies to space for research", "Will the space station be resisted during flight", and interacted with 2 netizens and 8 children in the ground class.
2 experimental modules will be launched within the year
The space "podium" will be further expanded
Shenzhou 13 has been in orbit for more than 5 months, setting a new record for the number of days in orbit for Chinese astronauts. The longest "space business trip" has come to an end, three "space teachers" will return to their home planet in April, and the space station's key technology verification phase is about to come to a successful end.
"The stars are vast and the exploration is endless." This year, carrying life sciences, medicine, physics, space technology and other scientific experiment cabinets of the "Qingtian" and "Dream" two major experimental modules will be launched one after another, by the end of 2022, the Chinese space station will be officially put into use, in space to carry out thousands of scientific research in the near future will become the norm. As the first space science popularization brand launched by the Chinese space station, "Tiangong Classroom" will continue to carry out space teaching activities, actively disseminate manned space knowledge and culture, and continue to carry out various forms and rich content of space science education.
As of press time, the three astronauts of the Shenzhou 13 crew, Zhai Zhigang, Wang Yaping, and Ye Guangfu, have successfully completed the first and second lessons of the "Tiangong Classroom." In the future, with the continuous advancement of the mainland's manned space development plan, more Chinese and even foreign astronauts will be stationed on the Chinese space station and serve as "space teachers" to bring more space lessons to everyone.
"The flying dream never loses weight, and the tension of the scientific dream is infinite!"
Related Reading:
The podium is larger and more interactive, compared with the past, what are the similarities and differences in the first lesson of "Tiangong"?
Producer: Nandu Big Data Research Institute
Data collection and analysis: Chen Zeran, Tang Jingyi
Draft: Ganden
Data source: China National Space Administration official website, NASA, Xinhua News Agency, CCTV News and other media reports
Deadline for statistics: March 23, 2022