On December 9, 2021, "Tiangong Classroom" held its first space class. "Space teachers" Zhai Zhigang, Wang Yaping, and Ye Guangfu interacted with teachers and students in ground classrooms. The following is my review of the second lesson of "Tiangong Classroom" that I compiled for you. You are welcome to read and study for reference!
Reviews of the second lesson of "Tiangong Classroom" Experience 1
I watched the Tiangong Classroom program, which made me learn a lot of knowledge.
In 2013, Chinese astronaut Wang Yaping gave his first sky lecture in a real sense. Eight years later, today’s technology is very different from that of the past. Moreover, the quantity and quality of cameras have improved this time, which has also put a lot of pressure on the astronauts. And she also holds a camera in her hand, which is no easier than holding it on land.
Teacher Zhang asked us several questions. In the space station, what are the directions of seeds, roots and buds on the six sides of the cube? The answer is that the roots diverge and penetrate into the soil, and the buds grow away from the planting and toward the light. Because the earth has gravity, the roots of plants on earth's mountains grow underground. However, in the microgravity environment of space, their roots will grow everywhere, and the roots will also be curved and grow in the soil.
The second question is, what happens to the water when you pour water from the teapot into the cup? The answer is, the water is in the teapot and cannot be poured out. In a micro-gravity environment, water will float on it and cannot be poured out.
The third question is, can goldfish swim in the open fish tank water in the space station? No, because the water and fish are separated, and the water will swim for a period of time in a short period of time. After the meeting they will separate.
An astronaut holds a small steel ball in one hand and a feather in the other on the extravehicular robotic arm. They use the same force with both hands to throw it in the same direction. The predetermined distance is two meters. Who will arrive first? Answer It's a feather. Under vacuum microgravity, small mass causes large acceleration, so the feathers arrive first.
After that, I learned about some wonderful moments of aerospace. After that, I visited some astronauts’ “space homes” and learned about some of the equipment in space.
I also learned that on the ground, the ping pong ball will float on the water, but in space, the ping pong ball is immersed in the water. In the space station, buoyancy almost disappears. A water film, and after adding water to the water film, put an artificial flower into the water film, and the flower becomes bigger in the sky, as if it is blooming. After continuing to fill the water film with water, the water film will turn into a water ball. Injecting a bubble into the water balloon creates a positive and negative image in the water balloon. Inject the paint into the water balloon, and then put the effervescent tablet into the water balloon. A large number of bubbles will be generated in the water balloon, making the water balloon look more beautiful.
After this experiment, I learned a lot from this sky class. I liked this sky class very much.
Thoughts after observing the second lesson of "Tiangong Classroom" 2
This teaching was a perfect success and it is also the most unforgettable one for me. At first, I was not very interested, thinking that I was just teaching on the ground, and thought that this must be a boring moment again. Unexpectedly, in the end, it was my favorite flying hero Wang Yaping who carefully prepared the lesson and gave us a thrilling lesson. This time Shenshi took Wang Yaping, Nie Haisheng, and Zhang Xiaoguang to fly into the sky. They are the pride of the Chinese nation and a role model for the world!
During the teaching process, Wang Yaping introduced us to them in the Tiangong cabin. Daily necessities and instruments used. On Earth, balances, spring scales, scales, etc. are used to measure the gravity of objects. But here, they cleverly used Newton's second law of F=ma to calculate weight, which also reflects the wisdom of the Chinese people. Then I saw the motion of a pendulum, a circular motion that could not be achieved on the ground, but was achieved in space. When I saw the ball rotating 360 degrees, I didn't dare to blink because I was deeply attracted by it. It was incredible! Then Wang Yaping demonstrated to us the directionality of the space version of the gyro. She threw the unspinning top in the air and pushed it gently, and a magical scene appeared: the top rolled forward slowly and continuously. But when the spinning top is pushed forward, the top spins steadily, in a different direction than before. Mighty and magical. Finally, she made a water mask, added a little water and turned it into a large crystal clear water ball. When she squatted down to look at the water balloon, the shadow was upside down. This doesn't seem logical at all, but it's all proven. When she added the red liquid, the water ball resembled a beautiful and flawless ruby.
After reading these experiments, I still feel unfinished. I really learned a lot. I seem to have developed an interest in space life. A series of questions come to mind: Do they have fun in it? How does it feel like to be weightless? If you look at yourself in the water on Earth, you are right, but why is it just the opposite when you get there? Is this also the principle of space? ?... All these questions have aroused my curiosity, but space is mysterious and no one can understand it. Only by continuous practice and exploration can we make new discoveries. I really want to become an astronaut and go to space to see these magical scenes. Maybe I can see 16 sunrises! But this is impossible because astronauts cannot have any scars.
So I want to have more classes like this so that we can feast our eyes and let everyone have the dream of flying.
At the same time, I want to thank our flying heroes. Without them, we would not be able to see the interesting things in space. I believe that in the near future, the number of Chinese heroes will only increase day by day, and China’s flying dream will always exist. They will coexist with the rivers and the sun and the moon!
True I want to have such an interesting lesson again!
Thoughts after watching the second lesson of "Tiangong Classroom" 3
This afternoon the teacher took us to watch the live broadcast of Shenzhou 13 flying into space . It tells about the differences between classrooms and teachers, the teacher's space home, the magical changes of cells, the phenomenon of putting a table tennis ball into a water cup, and the water film tension experiment, etc.
Among them, the water film tension experiment impressed me the most. First, Teacher Wang and Teacher Ye dripped water on a pointed object, forming a thin water ball on the pointed object. Then, Teacher Wang poured water into the water polo. The water polo became more and more bulging, fatter and bigger. Then put a flower origami folded on the earth. The flower turns clockwise on the water polo, and the petals slowly open outwards, tapping their toes toward a ballet dancer and dancing gracefully. After two or three turns, the petals spread out and turned into a flower blooming in space. The students all showed surprised expressions and screamed "Wow---".
Immediately afterwards, Teacher Wang took a thin needle and inserted it into the big bubble. After pushing twice, a small bubble came out. At this time, Teacher Wang hid behind the bubble. When we looked at the front of the bubble, I found that the small bubble was the positive teacher, and the big bubble was the negative teacher. I think it's so amazing!
The teacher continued to pour water into the bubbles. She put in a little dark blue paint, and the paint slowly spread around, and finally filled the entire bubble, blue. Bubbles are like our Earth.
Finally, the most surprising moment came. The teacher put half of a yellow effervescent tablet into the water balloon. At first there was no movement from the effervescent tablet, but slowly the effervescent tablet melted, filled the entire crystal ball, and continued to bubble up. The scene at this time was very beautiful, and the students all leaned toward the crystal ball. I looked inside, for fear of missing this wonderful and beautiful moment.
By watching this live broadcast, I understand how powerful technology is, how interesting science is, and how technology can really lead the future.
Thoughts after watching the second lesson of "Tiangong Classroom" 4
Human beings stepping into space is the progress of civilization. Our country can send astronauts into space and has a high Aerospace technology, that is the confidence of our Chinese People’s Republic of China!
In this interactive class, I felt that China, our motherland, is developing rapidly in the aerospace industry, and its yearning for space. I learned about the structure of the space station and the order in which other manned and cargo rockets access the space station. I realized that China has the courage to explore the mysteries of space. I also learned that one day on earth is equal to 30 days in the universe. !If people do not exercise in outer space and stay in outer space for a long time, the blood will rise. When there is too much blood in the brain, death will occur.
In class, the teacher showed us an experiment on the disappearance of gravity in outer space.
Water will not float like the earth in outer space, but will float. When astronauts drink water in outer space, they must put it in a bag. One of the experiments is a water film tension experiment. First, make a water film, then add water to the water film to turn it into a large water ball. Inject pigment into the water ball, and the water ball will turn into other colors. Finally, I put the effervescent tablet inside. The bubbles from the cap of the effervescent tablet did not explode, but were inside the water balloon. After a while, the water balloon was filled with bubbles. The water balloon got bigger and bigger, but there were no bubbles inside. Burst, but inside the water balloon, not one of them left it. This experiment is really amazing. Water can be made into a ball without flowing down, and the bubbles from the effervescent tablets do not burst. You need to exercise more in space, otherwise you will not adapt and become fat when you return to Earth...
It’s amazing! From this study, I deeply realized that China has great achievements in aviation Progress in this area has also allowed me to understand the structure of rockets and life in space. There are many interesting things in space, waiting for our new generation of overtime workers in the motherland to discover.
Thoughts after watching the second lesson of "Tiangong Classroom" 5
The China Manned Space Engineering Office announced that in order to give full play to the comprehensive benefits of China's space station, China's first space science education brand "Tiangong Classroom" is about to be officially launched, and the first space teaching event on the Chinese Space Station will be broadcast live to the world in the near future.
I was extremely excited to see this news, because we can once again see a series of wonderful phenomena of object movement in the microgravity environment of space. This reminds me of the space lecture in 2013.
In only 40 minutes, the astronauts only used five simple experiments to let everyone better understand the changes of objects and the principles of their changes in a weightless environment.
There are water film experiments and gyro experiments respectively... which made me realize that many incredible things can be done in a weightless environment. Among them, the most interesting thing to me is the water polo experiment! First, use a ring similar to the size of a magnifying glass to stretch the When you put it into a drinking tap water bag, it turned into a water film when you took it out. Then you kept pouring water drops into it, and slowly the water film turned into a crystal clear water ball. If you insert a needle into a water balloon on the ground, it goes without saying that the water balloon will explode. However, in space, we can use a needle to inject ink into a water balloon, and the water balloon remains "unscathed". This is simply a miracle for us! This made the audience stunned.
Armstrong, the first man to go to the moon, once said: One small step for man, one giant leap for mankind. Although we can only watch space lectures on TV screens thousands of miles away now, I believe that one day we can go to space in person, communicate face to face with teachers, and experience the fun of being in space.
Thoughts after watching the second lesson of "Tiangong Classroom" 6
At that exciting moment, astronauts Zhai Zhigang, Wang Yaping, and Ye Guangfu entered the Tianhe core module one after another, and the follow-up will be as planned Carry out relevant work.
my country's high-tech development has advanced by leaps and bounds. Shenzhou 7 was successfully launched, 5G Internet research and industrialization achieved major breakthroughs, and my country's "first world-class high-speed railway opened between Beijing and Tianjin." The results of research on the genome sequence of a Chinese person were published, and the "Beijing Electron Positron Collider major renovation project construction task was successfully completed." Sugon 5000A ranked among the top ten supercomputers in the world.
The dragon dives deep and Chang'e explores the moon. Our country’s scientific and technological strength continues to improve. Major scientific and technological achievements continue to emerge, and scientific and technological innovation becomes increasingly active, injecting new vitality into high-quality economic development.
A thousand-year dream has come true today. On July 23 last year, Tianwen-1 was launched from the Wenchang Space Launch Site by the Long March 5 Yao-4 carrier rocket and successfully entered its intended orbit. Tianwen-1 will arrive on Mars in February 2021 to implement Mars capture. In May 2021, an opportunity will be chosen to implement deorbiting. The landing rover will separate from the orbiter and softly land on the surface of Mars. The rover will leave the landing platform and carry out patrol detection and other work to analyze the surface morphology, soil characteristics, material composition, and water ice of Mars. , atmosphere, ionosphere, magnetic field and other scientific detection to achieve China’s technological leap in the field of deep space exploration [5]. Deep space exploration will promote the comprehensive development of space science, space technology, and space applications, and make greater contributions to serving the overall development of the country and improving human welfare.
As of February 3, 2021, the total flight mileage of the "Tianwen-1" detector has exceeded 450 million kilometers, and it is about 170 million kilometers away from the earth.
We are standing at the historical intersection of the "Two Centenaries", and a new journey of comprehensively building a modern socialist country is about to begin. The journey is long, but there is only struggle. Through struggle, we have overcome obstacles and gone through thousands of mountains and rivers. We must continue to struggle, move forward bravely, and create more brilliant glory!
The astronauts of Shenzhou 13 will stay in orbit for 6 months as planned. During these 6 months, their main work is to Further verify key technologies for space station construction and operation. Specifically, it is necessary to cooperate with the core module, Tianzhou-2 and Tianzhou-3 for further verification.
If science and technology are strong, the country will be strong. The road to self-confidence is successful. Thumbs up to China Aerospace. The launch of the Shenzhou-13 manned spacecraft was a complete success and once again made us feel the power of our motherland.
Thoughts after watching the second lesson of "Tiangong Classroom" 7
In ancient times, people always wanted to send some detectors into space. However, a single function cannot complete people's exploration of space. So, people began to think of ways: how to get people to heaven! This time we used the "Long March 2 rocket" and the "Shenzhou 12 spacecraft".
It costs a lot of money to go to space. If you only think it’s not cost-effective to go up there for only three or four hours, we want to build a place like a hotel where astronauts can stay, which is a space station.
According to the plan, the first floor of the space station consists of five parts: the first is the "manned spacecraft", which is mainly used to transport astronauts; the second is the "Wentian Experimental Module", which is used to Do some experiments that cannot be completed on earth; the third is the "Mengtian Experimental Cabin", which is similar to the "Wentian Experimental Cabin" and is also used for experiments; the fourth is the "Tianhe Core Cabin", our country's Astronauts live here; the fifth one is the "cargo spacecraft", which is mainly responsible for transporting various supplies. However, this plan has not been completely completed. The current space station has only two parts: the "Tianhe core module" and the "cargo spacecraft". It is said that the space station will be completed by 2022.
Legend has it that there is a Guanghan Palace on the moon, and our space station is floating in space. The sun radiates "energy" towards the earth every day, but when we bask in the sun on the earth, the sun is far away from us and the danger is not great. Astronauts may get cancer if they get too much sun in space, so it is stipulated that the space station cannot be higher than 1,000 kilometers above the earth. After considering various factors such as funding and experimental results, scientists finally decided to locate the space station 400 kilometers away from the earth.
On the earth, anything you throw will fall to the ground. This is the "universal gravity" proposed by Newton. If we stand on flat ground and throw something, it will fall; if we "throw" the spacecraft up at a very fast speed, its falling degree will be consistent with the arc of the earth, and the spacecraft can fly along the earth. . The space station flies very fast and can circle the earth in one and a half hours.
From ancient times to the present, it has been impossible for people to see the entire sky from the earth. If you stand on the space station, you can see everything clearly, because you can see far if you stand high.
Some experiments that cannot be done on earth can be done in the space environment, such as finding some chips that are more compact than mobile phone chips, or some things that can change color in the environment.
This time the astronauts went to space with several small goals: living there for about three months; debugging various equipment; doing some incredible experiments; and going out of the cabin to see the whole picture of space and the space station.
China’s space station allows us to explore more mysteries of space.
Thoughts after watching the second lesson of "Tiangong Classroom" 8
The Shenzhou 13 manned spacecraft will be launched in the early morning of October 16th. In response, Chinese Foreign Ministry spokesperson Zhao Lijian said on the 15th that less than a month ago, China welcomed the triumphal return of the Shenzhou 12 manned spacecraft. In the early morning of the 16th, China will once again watch the Shenzhou 13 fly to the destination with excitement. space. "This not only vividly explains the spirit of China's manned spaceflight, which is particularly capable of enduring hardships, fighting, solving problems, and making contributions, but also embodies the spirit of the Chinese people's courage to pursue dreams, explore, and never-ending scientific exploration of space. ”
At the regular press conference of the Ministry of Foreign Affairs held that day, Zhao Lijian said that on the 15th, the press conference for the Shenzhou 13 manned mission was held at the Jiuquan Satellite Launch Center. The spokesperson introduced the relevant situation. The Shenzhou 13 manned mission is a key technology verification stage of the Chinese space station. The sixth mission is the decisive battle and the final battle of this stage. It is also a link between the past and the future in the process of the space station's orbital construction. A crucial battle.
"What I want to say is that this Shenzhou 13 mission demonstrates China's new efforts and new contributions to manned space exploration, a common cause of mankind. China will continue to increase its efforts in The depth and breadth of international cooperation and exchanges in the field of manned spaceflight have made positive contributions to mankind's exploration of the mysteries of the universe, the peaceful use of space, and the construction of a community with a shared future for mankind," he said.
Zhao Lijian said that it can be noticed that compared with the Shenzhou 12 mission, there are many differences in the team work arrangements this time, including the fact that Chinese female astronauts will be stationed on the Chinese space station for the first time and implement For extravehicular activities, Chinese astronauts will stay in orbit for six months for the first time, and the Chinese will spend the Spring Festival in space for the first time. "We look forward to observing the New Year's Eve and being able to hear the blessings from our compatriots from space for the first time. Let us jointly wish the Shenzhou 13 manned spacecraft a successful launch."
"Tiangong Classroom" Lesson 2: Thoughts after viewing 9
"Tiangong" is a space station independently developed by our country. Don't mention it, the name "Tiangong" was not chosen casually. It is like a palace with everything in it.
The space station is a "space hotel-style laboratory" where astronauts can stay for short periods of time and conduct various space research and experiments. So why build a space station? The space station can test various technical equipment that may be used for space flight in the future. You can also get a "weightless" environment - a special environment that is difficult to obtain on the ground for a long time. However, the cost of a round trip to space is quite high. Being able to stay in space for more time at a time can reduce costs and improve work efficiency at the same time. Therefore, a place with comprehensive functions that can allow astronauts to live longer was born.
First, let’s introduce the plan of our “palace”.
The Tianhe core module is the bedroom of the palace, mainly for astronauts to live in. Cargo and manned spacecraft are just like vehicles on the ground, used to transport goods and people. The Wentian Experimental Module and the Mengtian Experimental Module are not yet completed. They are the R&D laboratories in the "palace" and are used for various space experiments and scientific research.
There are all kinds of imaginable dangers in space, and one of the threats comes from the sun as we know it. As we all know, the sun is the basis for the survival of all living things on earth. It provides an endless supply of various energy and nourishes the growth of all things. But the rays and gamma rays it releases are very deadly. These two rays can easily penetrate your skin and destroy all cells in the body. So why can we bask in the sun every day on the earth? That’s because the earth’s magnetic field and atmosphere reflect or absorb it. The location of the space station must take this safety factor into consideration. The international community generally chooses a location 1,000 kilometers above the ground. Our "Tiangong", for the sake of maximum safety, is erected 400 kilometers above the ground. In this way, you can not only obtain protection from the earth's magnetic field, but also obtain protection from the atmosphere, killing two birds with one stone.
In ancient times, the Heavenly Palace was said to be in the clouds, where all kinds of gods lived. It was ethereal, invisible and intangible.
Today's "Tiangong" is home to many astronauts and scientists. They are constantly working hard for the advancement of China's space science and technology high in the sky, so that we no longer rely on foreign technology and can truly look at the entire universe while overlooking the earth. The understanding of space continues to deepen.
Therefore, our "Tiangong" is truly a palace in the sky! Perhaps this is the origin and beautiful meaning of the name "Tiangong".
The door to "Tiangong" has been opened, soaring in the clouds and mists, traveling in space, the future is promising!
10 thoughts after watching the second lesson of "Tiangong Classroom"
The stars and the sea have not stopped, and the space heroes set off again. At 0:23 on October 16, Beijing time, the Shenzhou-13 manned spacecraft flew into space carrying three Chinese astronauts, Zhai Zhigang, Wang Yaping, and Ye Guangfu. They became the second batch of "occupants" in the Tianhe core module of the Chinese Space Station. "This global live broadcast of "Tiangong Classroom" left a deep impression on people.
From the launch of Shenzhou-1 in 1999 to the first batch of astronauts entering space during the China Space Station phase in June 2021, the Chinese people’s desire to “settle down” in space is being realized step by step. Over the past 22 years, we have witnessed the history of China's manned space industry from weak to strong. Netizens on social media have also praised China's aerospace industry: "The pace of progress never stops" and "Amazing China, amazing Chinese people"!
Things change and stars change, and the years are like poetry. Every launch, every flight, and every transcendence of China's aerospace industry shows the world our aerospace path from scratch, from existence to excellence, and from earth to space. This process seems to be an understatement, but the actual journey is unforgettable. During the National Day, the movie "My My Fathers", which tells the story of parents and ancestors' silent sacrifice and dedication for the construction of New China, exploded on the screen. One of the chapters, "Poetry", is a tribute to China's aerospace industry - doing work in the Gobi Desert. In the turbulent years of early research, the young couple, who were gunpowder engravers and aerospace engineers, told their children: "Mom and dad are the ones who write poetry in the sky." After the death of her husband, the wife supported her career and career with her weak shoulders. Family, these touching scenes broke the audience's defenses. If patriotism is the deepest emotion, then struggle is the longest confession of love. The figures who work hard for the rejuvenation of the nation and the aerospace industry are a magnificent poem in the world.
"Being in China, looking at the stars. There is poetry in my heart, and I am at ease in the distance." Speaking of poetry, the name of China Aerospace has a romantic connotation exclusive to the Chinese. The lunar exploration project is called "Chang'e", the lunar rover is called "Jade Rabbit", the global positioning system is called "Beidou", the space station is called "Tiangong", and the Mars probe is called "Tianwen"... As one of the four major civilizations in the world, it has never been interrupted. Civilization, Chinese civilization has countless myths, stories and historical legends. They spark with China's cutting-edge high technology, giving China's aerospace a "traditional" and "modern" connotation. Naming the manned spacecraft "Shenzhou" is full of beautiful meanings.
This year marks the 100th anniversary of the founding of the Communist Party of China and the 65th anniversary of the founding of China’s aerospace industry. As the Shenzhou 13 manned spacecraft heads towards the universe, the Chinese have changed from "visitors" in space to "tenants" - the change in "identity" represents the increase in national power, and this sense of national pride has arisen spontaneously. It should be kept in the hearts of every Chinese son and daughter. This space lecture is not only full of creativity, but also means that the legend of China's aerospace industry will extend to more profound and unknown areas. China's aerospace industry is moving towards higher goals, which is its "heart's yearning" for the boundless space.
I believe that this poetic confession in the name of the country will eventually condense into the unified voice of the people of "Strive, sons and daughters of China"!
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