When the Shenzhou VII exits the spacecraft, it has to display the national flag even if it sacrifices its life. Do you know how difficult it is to exit the spacecraft?

Zhai Zhigang left the cabin and created a milestone in China's aerospace industry. Zhai Zhigang saw the sky full of stars under his feet, the blue earth suspended above his head, and the sight of floating in space deeply shocked his soul. He said a sentence that everyone is familiar with: "I have left the cabin and feel good." But at this moment, an extremely dangerous signal came. The instrument suddenly sounded an alarm, and there was a fire in the Shenzhou 7 orbital module! After Zhai Zhigang heard the alarm, his scalp instantly felt numb. However, the astronauts of Shenzhou 7 had already put life and death aside. Their first thought was to complete the mission no matter what.

The spacewalk mission continues. However, in order to prevent accidents from happening, the astronauts disrupted the original plan. Zhai Zhigang took out a five-star red flag and displayed it in front of the world. Zhai Zhigang and Liu Boming decided that even if they were sacrificed, they would still let the Chinese flag fly in space. Chinese astronauts are ready to sacrifice

Chinese astronauts Liu Boming and Tang Hongbo wore China's independently developed new-generation "Flying" extravehicular spacesuits and successfully exited the Tianhe core module node module. . This is also the second time that Chinese astronauts have performed an extravehicular mission after a lapse of 13 years after the Shenzhou 7 flight crew successfully completed the extravehicular mission. This time out of the cabin, the space station's robotic arm cooperated with astronauts to perform a mission for the first time.

After staying on the Chinese space station for more than half a month, the three astronauts of Shenzhou 12 carried out their first spacewalk mission. Nie Haisheng was stationed in the Tianhe core module. Liu Boming and Tang Hongbo left the module one after another and conducted extravehicular activities in space for about 7 hours. After successfully completing various tasks, they returned safely to the space station. In fact, this is not the first extravehicular activity of our country’s astronauts. As early as 13 years ago in 2008, the astronauts of Shenzhou 7 conducted the first spacewalk mission in my country's history. However, the Shenzhou 7 mission was not smooth sailing. Instead, it went through a thrilling process, and the astronauts were even prepared to sacrifice. It is to show the five-star red flag and prove that we have been here

Astronaut Liu Boming was in danger when he left the cabin. At that time, the hatch could not be opened. In desperation, Liu Boming found a metal rod and Zhai Zhigang pried open the hatch. When preparing to leave the cabin, the fire alarm sounded, and the three astronauts decided to change the exit procedure and display the national flag first. Liu Boming recalled that he was ready to sacrifice at that time: "We just want to show the five-star red flag to prove that we have been here!" After the Shenzhou 12 manned spacecraft's return capsule reverse propulsion engine was successfully ignited, it landed safely in the predetermined area of ??the Dongfeng Landing Site. After 90 days of space work, astronauts Nie Haisheng, Liu Boming, and Yang Hongbo finally completed their missions successfully and returned to their motherland. Shenzhou 7 successfully completed its mission

They finally reached an agreement that they must leave the cabin first. If the fire alarm is eliminated first, it is very likely that the orbital module will explode. They will be unable to complete the historic mission entrusted to them by Shenzhou 7. They must first exit the module. Hundreds of millions of people are watching them closely! So they decided to complete the mission of leaving the cabin first, regardless of their own safety. According to the original procedures, they first needed to collect solid specimens in space, and the second step was to display the Chinese flag. In view of the serious situation, they made temporary adjustments. After leaving the spacecraft, they first displayed the Chinese flag to prove that the Chinese had been here. . This is the most sacred mission given to them by Shenzhou 7, even if they sacrifice themselves. Next came the shocking and historic scene we saw. Zhai Zhigang waved the Chinese flag after leaving the cabin, which made hundreds of millions of Chinese people burst into tears. Fortunately, the fire alarm was a false alarm and the Shenzhou 7 mission was successfully completed. The dedication of astronauts

Astronauts are very dedicated. In fact, what astronauts have to do is to put their own life safety last and our country's aerospace industry first. They represent the entire motherland and fly into space to experience weightlessness. Difficulties, inconvenience of movement and other problems, but they have not been timid or discouraged, but have been resolutely completing the tasks given by our motherland. This is a very persistent spirit, and it is also a spirit of willingness to contribute to our society.

And in fact, for them to become astronauts, they have to practice harder than others, because being an astronaut is a very test of physical fitness, so they must go through a lot of difficult training every day, but they persevere, and this The spirit of perseverance and the spirit of not giving up in the face of difficulties are also very valuable, so in the end they stood out and became astronauts, which was also inseparable from their day and night efforts. We should really learn from them. Our country’s astronauts must adapt to the weightless environment for a long time

This time, our country’s three heroic astronauts Nie Haisheng, Liu Boming, and Tang Hongbo took the my country-made Shenzhou 12 manned spacecraft from June 17, 2021. Entering space from 9:00 to 16:00 on September 17, 2021, they have been working in the universe in a predetermined orbit 200 to 300 kilometers away from the earth for a full 90 days. During this slow three-month period, our country's When astronauts suddenly enter a weightless environment from a long-term environment of adapting to gravity, this will cause a series of huge changes in the astronauts' physiological systems and hearts to adapt to the weightless environment. The symptoms caused by these changes, Medical science calls it "spatial adaptation syndrome". Astronauts need to work many hours a day and live in space for a long time. The unique natural environment of the universe will cause great changes in each astronaut's body. Especially when human bone tissue begins to become osteoporotic, it will also have a certain impact on human vision. In addition, the greatest impact on the human body is the changes in the cardiovascular, cerebrovascular and nervous systems. The longer astronauts live in space, the greater these changes become. The four astronauts on the American Crew Dragon spacecraft only stayed in space for four days. During these four days, their body systems did not change much, so they could walk out on their own after returning to Earth. How astronauts live in space

China’s manned spacecraft are usually equipped with oral cleaners and oral cleaning finger cots. Oral cleaners are usually chewed by astronauts after meals. Like chewing gum, they can achieve the purpose of cleaning the mouth. Oral cleaning finger cots are gauze finger cots with antibacterial detergent attached to them. They can be worn directly on your fingers and inserted into the mouth to wipe the teeth and massage the roots of the teeth. Astronauts sweat more easily in space than on the ground, so cleansing the skin in space is very necessary. Since water forms water droplets in a weightless environment and flies up, it is not easy to wash your face and take a bath in space. The flight time is short and the space is limited, so astronauts generally use relatively simple methods, such as scrubbing with dry or wet towels, or scrubbing with wet and dry towels. The country will not treat them badly

No matter how high the salary of astronauts is, there is no jealousy, but there may be envy. Because they are fighting with their lives. In this type of space flight, if you are not careful, you will be in danger of sacrifice at any time. Such a huge rocket ship cannot be built by just a few people. When there are many people, mistakes will be made. As long as one person is not precise enough on an issue, he can cause a huge disaster. If this happens, astronauts will have no way to escape. Seven astronauts, including a female primary school teacher, who were the challengers of the United States, were swallowed up by thick smoke and fire the moment they were launched in full view of the public, and no bones were left. Human beings have to pay a high cost or price to challenge space. The first to bear the brunt of the cost of life is the living lives of astronauts. So for these heroes of humanity, talking about wages might be sacrilegious. We also believe that the country will not treat them badly. Our country's astronauts are all strictly selected

The position of astronauts in the military is just like border and coastal defense soldiers. It is a high-risk job and occupation, and some only receive a small subsidy. and subsidies, they don’t care about that. The bounden duty of soldiers is to devote themselves to the pursuit of making China's aerospace industry bigger and stronger as soon as possible. If you can contribute, your wish will be fulfilled. This can be seen from their rigorous selection. Our astronauts are all selected from fighter pilots, not to mention one in a thousand, at least one in a hundred. They take it as an honor to dedicate themselves to aerospace. After layers of screening, they finally win, and then go through They were eliminated through training, and in the end they had to be willing to serve as backup. Do you think it was hard for them? Conclusion

Another generation of Chinese astronauts can lead us to see the broader universe and the sea of ??stars with their tenacious perseverance and adventurous spirit and dedication that are not afraid of the small and only care about the big self. , I would also like to thank this group of brave Chinese astronauts and pay them the highest respect. At the same time, it is the generations of aerospace talents that allow us to invest our vision from the vast earth to billions of light years away. In the vast starry sky, they are the greatest and most romantic people in the world.