How did the astronauts of Shenzhou-10 spacecraft spend their time in the universe?

Space is a magical world full of charm, and space life is a magical topic full of charm and curiosity.

The space environment is very different from the earth's environment. There is no air, no gravity, and it is full of space radiation that is very dangerous to astronauts. Of course, there is enough air for you to breathe in a closed space station or space shuttle cabin. Good spacecraft shielding materials can effectively block space radiation, but "weightlessness" will bring some troubles to life.

If you live in space in the way of the earth, you will definitely make a lot of big jokes. For example, when eating, you carry a bowl of rice, and the rice will float all over your cockpit. You may not be able to eat anything with your mouth open. When you keep your mouth shut, rice grains may float into your nostrils and choke you to death. You want to sleep comfortably in bed, but you will find that there is no upper and lower boundary in space, and there is almost no difference between "lying" and "standing" ...

So how do astronauts eat and sleep in space?

on one's pins

Sleeping hanging, you can take a shower.

You can also take a bath on the spaceship, which you didn't expect! Researcher Wang Zhuang said in an interview that although the internal space of the spacecraft is less than 6 cubic meters, it can still solve the problem of astronauts taking a bath-because there is a separate bathing bag in the spacecraft, and they can also take a bath.

Because of weightlessness, sleeping in a spaceship is different from sleeping on the earth. There is gravity on the ground, but there is no gravity in space. As soon as astronauts lie down, they float. In this regard, a sleeping bag was prepared separately in the spacecraft and hung on the wall. When you sleep, you should get into this sleeping bag and hang it there ...

eat

Compression brick, toothpaste tube

Professor Chen said that the astronaut's menu is also very rich, with 100 choices, which is not as difficult to swallow as everyone thinks. However, space food is not ordinary fruits and vegetables, but specially processed "compressed bricks" or "toothpaste tubes". After adding a certain proportion of water, it can restore its original shape, taste good and contain all the nutrients needed by human body. Because in weightlessness, food can't stay on the plate as honestly as it does on the ground, but floats on the table. Therefore, experts design space food as toothpaste and squeeze it into their mouth like toothpaste when eating it.

These foods also have high nutritional value, and are rich in vegetables, protein and fat. According to Professor Chen, Aerospace Group has a special institution to study aerospace food. Breakfast, lunch, dinner, what to eat for three meals a day and how to mix them are all designed very scientifically. Astronauts' swallowing muscles must be well developed, because in space, food will not fall due to gravity, but will stay in the pharynx after inertia swallowing. There are two ways to make food swallow: it will fall into the stomach due to relative motion with food, but static friction may not be realized, so astronauts have to endure great pain and squeeze food through muscle contraction. If astronauts swallow food and move "downward" (the universe has no direction), food will even come out of their mouths.

clothes

120kg, worth tens of millions.

According to the relevant person from the Propaganda Department of Donghua University (formerly China Textile University), the spacesuit to be equipped on China manned spacecraft, has been made and tried on many times.

Spacesuit consists of clothing, helmet, gloves and space boots. The clothes with the most complicated structure are composed of 14 layers: the innermost layer is the lining of liquid-cooled ventilation clothes; Outside the lining is a liquid-cooled ventilation suit, which is made of nylon elastic fiber and many plastic tubes for conveying coolant. There are two pressurized airtight layers outside the liquid-cooled ventilation suit, and another limiting layer limits the outward expansion of the pressurized airtight layer; Outside the limiting layer is a heat-proof micrometeorite dust-proof suit, with 8 layers in total, which plays the role of heat-proof micrometeorite dust-proof; The outermost layer is coat. Although the space suit has a complicated structure, it is not difficult to wear, and it can be worn in about 15 minutes.

Because spacesuit is a special kind of clothing, it usually consists of breathable layer, airtight layer, thermal insulation layer and other layers. It is a small sealing system with two functions: protection and exit. This kind of spacesuit belongs to in-cabin spacesuit. Except the helmet and rubber gloves, the whole spacesuit is made of a special high-strength polyester. The whole set of clothes weighs about 120 kg, and the value is as high as tens of millions. Plus the design fee, it can reach 1 100 million yuan.