Why didn t I open my hands to the spacewalk of my country s Shen VII

Because the spacesuit has no power, once you let go, you are afraid of becoming space junk.

You don't think this right, look at how many people have died in Russia and the United States. It is not easy to train an astronaut to ensure that nothing goes wrong, and besides, it is still a developing country.

Who said fear of death? You see, there are not so many outlaws in China... People's poisoned milk powder can be exempted from inspection. Is he afraid of death?

No way. Americans are bold! We're just doing it for everyone to see.

Afraid!!! You have a good point. Watching other adventurers, climbing mountains, and the like are all European and American.

This is the first time we have done an extravehicular walk.

There are also many technical obstacles.

And this time it's a relatively short time, just before sunset, and the light is more demanding.

Why don't you try it,.

Actually, it was the astronauts who walked out of the capsule after arriving at the music, not Shen Qi. After exiting the capsule, the astronauts will only take one sample from outside the capsule and return to the capsule, which will take about 20 minutes! And I believe that the Chinese astronauts, they have minimized the incidence of all dangers, and if there is an accident, they can return to Earth in 4 hours at the earliest.

Pang Zhihao said that there are at least two technical problems to be broken through in order to realize the "spacewalk", one is the problem of setting up the airlock cabin on the spacecraft, and the other is the technical problem of the astronauts' extravehicular spacesuits.

One of the first pieces of equipment to be used for a spacewalk is the airlock, which is the gateway for astronauts to get out of the capsule. The airlock compartment of a manned spacecraft generally has two gates, one is connected to the cockpit called the inner gate, and the other is the outer gate that can lead to space. When the astronaut leaves the capsule, he first walks out of the inner gate, and then closes the inner gate to pump the air in the airlock into the cockpit, and when the pressure in the airlock and the outer space is equal, the outer gate can be opened and enter space.

Astronauts return to the airlock in reverse order, much like a ship passing through a lock. The air tightness of the inner and outer gates is absolutely reliable is the basic condition for the operation of the airlock cabin, and the opening and closing of the gate must be very careful and skillful, and it is very important to avoid air leakage, otherwise it is extremely dangerous. Pang Zhihao said that the airlock cabin can not only avoid deflating in the cabin, but also allow astronauts to have an adaptation process before leaving the cabin.

Previously, China's three aerospace heroes wore in-cabin spacesuits in space, and when performing the "Shen VII" mission, they must wear special extravehicular spacesuits. "The technology of an extravehicular spacesuit is much more complex, an extravehicular spacesuit with a portable life support system has a mass of more than 100 kilograms (the mass of the in-cabin spacesuit is 10 kilograms).

There is a fundamental difference between a spacewalk and a capsule activity, for example, in the future, we will build our own space station, which cannot be achieved without the ability to walk in the space for a long time.

Why build a space station?

This is because relying solely on spacecraft or, as in the case of the United States, space shuttles, for space exploration cannot achieve the purpose of staying in space for a long time. Relying solely on these vehicles, a space flight can only last at best.

One or two weeks or so.

Many experiments or tests that need to be completed require a longer stay in space.

In this case, it is necessary to create a device in space suitable for the long-term survival of mankind, which can sustain the astronauts living in it for several months or even a year.

Such a device is the space station. It can be said that the space station is the first step of mankind into the universe.

The Salyut and Mir space stations of the former Soviet Union, as well as Skylab in the United States, are such space stations.

A space station is usually built on the basis of a spaceship, which gradually expands in space, gradually assembling new components and functional blocks.

Therefore, the establishment and maintenance of a space station must require astronauts to have the ability to walk in space for long periods of time.

In order to maintain the space station, repair some damaged parts of the space station, etc., astronauts from the United States and the former Soviet Union have recorded many long spacewalks. Among them, the two American astronauts walked the longest, with a length of 8 hours and 56 minutes.

In addition, there are plans to land on other planets in the future, the most recent is the moon landing, and such a mission also requires astronauts to have spacewalking capabilities.

The spacewalk of our two astronauts is actually still in the experimental stage, and the duration is relatively short, but it is also a historic breakthrough.

1.The United States and Russia have carried out more than 300 spacewalks, and the spacewalk planned by Shenqi this time is the first attempt.

2. Space Clever Calling Walking is a very difficult design in terms of technology, including airlock cabin and Yuxiao Huaikai aviation suit technology, etc., so the main problem is whether it will succeed or not, which is something worth paying great attention to.

3.The United States, Russian (now spacewalk) programs, such as the International Space Station, etc., all have certain tasks. China's spacewalk this time mainly depends on whether it can come out and enter the airlock or do some activities outside the cabin, and these are all questions of detail.

Most people are more concerned about the success of this mission, and of course they also consider the overall significance and intention of the Shenzhou series.

"The main mission of Shen VII is different from that of Shen VI, and there are two main characteristics. Qi Fayun introduced that Shenzhou 7 will work at full capacity, with 3 astronauts, to work and live normally in 3-5 days of space flight, and have higher requirements in the support system, environmental empty box, life, energy and other systems. On the other hand, the three astronauts will also shoulder a special mission to carry out out-of-cabin activities.

The spacecraft docking mission will be jointly completed by the "Shen VII" and "Shen IX".

Open and close the hatch in cooperation with the two.

Qi Fayun said that Shenzhou-7 will realize the first time that Chinese astronauts will go out of the capsule for spacewalk. The division of labor among the three astronauts is that one astronaut is on duty in the cabin, and the other two people are involved in the work.

Our work stipulates that major operations cannot be done by one person, and actions such as opening and closing the hatch are completed by two people, and one of them goes out of the cabin. He said.

People here can go over there, come back when they go, and get the results back. "In addition, it will be a test of being able to live in space for a period of time, with the aim of preparing the technology for the construction of a large-scale space station." This is a test of the capabilities of astronauts and equipment. ”

Qi Fayun said: The out-of-cabin activities will lay the foundation for manned spaceflight to build a larger space laboratory and space station.

Launched in Jiuquan in the second half of the year.

Qi Fayun said that Shenzhou-7 will be launched at the Jiuquan Satellite Launch Center at a suitable time and weather in the second half of the year.

Judging from the current situation, all technical preparations for walking out of space have been completely completed.

Qi Fayun said that the key to the launch of Shenzhou 7 is to choose a suitable launch window, the window is two, and the ideal situation is that the launch and return are daytime.

There will be no female astronauts.

Qi Fayun revealed that there will be no female astronauts on Shenzhou 7 to carry the mission for the time being.

Yang Liwei, deputy director of the China Astronaut Center and a space hero, said in an interview that he wanted to be China's first person to land on the moon.