1. Little knowledge about space life (what is the knowledge about space life, what is it)
Little knowledge about space life (what is the knowledge about space life) , what is there) 1. What is the knowledge about life in space, what is there
This is today's Baidu News headline report, there are 10 little-known secrets about life in space. Friends who need to know more may wish to go to Baidu Zhidao Daily. The following are just 10 little-known secrets about living in space:
1. The smell inside the space shuttle is very unpleasant
2. Vomit collection bags are very popular in aerospace Welcome astronauts
3. But the International Space Station smells pretty good
4. Pool training cannot really simulate the conditions in space
5. What are the requirements for new astronauts? Mobile training: like a cow rushing into a china shop
6. If you make a small mistake, space is the best place for people to remember it
7. Break The solemn ceremony of helmets
8. Space relay races and other games are performed almost every day on the International Space Station
9. The astronauts’ wake-up ceremony is usually chosen by their families
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10. It is very easy to pull off a prank by sneaking up to scare others
2. Knowledge about space life
Eating - the simplest things become complicated and wonderful. Eating and drinking Water is a common thing for people living on earth, but when living in space in a weightless environment, astronauts' diet becomes very complicated and particularly strange.
It can be said that astronauts’ nutritional needs, food preparation, supply and their eating methods have certain particularities, which are very different from their diet on the ground. In essence, space food is the same as ordinary food on the ground. They both provide energy and nutrients to the human body.
However, in order to save the space of the spacecraft and the payload during launch, the space food carried by astronauts should be as light in weight and small in size as possible. For example, nutritious dried biscuits and dried sausages can be restored to a taste similar to fresh food by soaking them in water when eating.
In addition to being able to withstand the special environmental factors of aerospace, such as shock, vibration, acceleration, etc. without failure, aerospace food must also be based on the index of physiological changes of astronauts under weightlessness conditions. For example, muscle atrophy requires food to provide sufficient high-quality protein; bone loss requires food to provide sufficient calcium and a suitable calcium-phosphorus ratio and vitamins. How astronauts eat during spaceflight activities is a big test for them.
Under weightless conditions, a cup filled with water will be the same whether it is placed upside down or upside down. The water in the cup will not automatically float or spill out. If it is placed on the table, the cup will fly together with the water. stand up. Therefore, the original eating and drinking habits of astronauts on the ground are completely inapplicable in space.
Generally speaking, all kinds of food, parts, utensils, etc. are fixed. After the astronauts take out the food from the pantry, they have to cut a small opening in the composite plastic film bag containing the food, put the fork and chopsticks into the pocket and put it into their mouths.
In order to prevent food crumbs from flying everywhere and affecting the normal work of astronauts or equipment, this kind of food is often packaged in small packages and made into squares, rectangles or small balls similar to the size of the mouth. "Eat in one bite" food, no need to cut it when eating. If astronauts want to drink water or eat soup, soup, juice, or jam, they can directly squeeze it into their mouths bit by bit from a plastic bag or a toothpaste-like soft aluminum tube.
With the development of rocket technology, astronauts can bring more food from the ground. For example, wet or semi-moist foods such as juicy turkey and beef have the same moisture content as normal foods eaten on the ground.
Astronauts can now use microwave heaters to bake food in space capsules. This type of microwave heater is different from the heaters used on the ground.
It has some specially made recessed cells. In order to prevent the food from floating during heating, the food that needs to be heated must be fixed in these small compartments. After plugging in the power, the food can be heated to a delicious level in a short time.
With it, astronauts can taste hot and fragrant braised beef, scrambled eggs, pork chops and other foods, and the taste is not much different from that on the ground. Wear - a piece of clothing worth tens of millions of dollars. People's understanding of clothing is often limited to its features such as body protection, warmth retention, beauty, and generosity. However, when humans enter space, they will find that the role of space suits has already exceeded the traditional scope.
Because of the close-to-vacuum pressure environment, extreme temperature environment, lack of oxygen needed for life, and threats from space dust, space debris and space radiation, space suits are needed to protect astronauts in space. Provide a good protection and security system for your life and work. Space suits can be divided into indoor space suits and extra-vehicular space suits according to their functions.
When the spacecraft cabin leaks and the pressure suddenly drops, the astronauts put it on in time and connect the matching oxygen and air supply systems in the cabin, and the suit will be immediately filled with Pressure air supply, and can provide certain temperature protection and communication functions to ensure that astronauts can return safely when the spacecraft fails. The extravehicular spacesuit is even more complicated.
It is a guarantee and support system for astronauts to go out of the cabin and enter the open space to carry out activities. It not only needs to have independent life support and work capabilities, but also includes protection from extreme thermal environments and human body balance control, oxygen supply and pressure control, ventilation and purification of the microenvironment inside the suit, measurement and control and communication systems, power systems, and astronaut visual protection and Guarantee, but also requires a joint system with good mobility and an emergency oxygen supply system in the event of a major system failure.
The structure of the extravehicular space suit is composed of a microflow protective layer (outer cover), a vacuum heat insulation shielding layer, an airtight restriction layer, a ventilation structure and a liquid cooling suit, which is like an independent life support system. An extravehicular spacesuit system is usually much heavier than a strong person.
Its price is naturally high. It currently costs tens of millions of dollars to develop and produce an extravehicular space suit. When talking about space suits, we can’t help but talk about the “space jetpack”.
This backpack is about 1.25 meters high, 830 millimeters wide, has a total weight of 150 kilograms, contains 12 kilograms of liquid nitrogen, and has 24 nozzles. It is like a chair without a seat, placed on the astronaut's back.
Astronauts can control 24 micro-nozzles through the switch on the armrest to spray out the compressed nitrogen in the backpack, thereby forming reverse thrust of different sizes in all directions and achieving movement in different directions. With this jetpack, astronauts can somersault, rotate, and move freely up, down, forward, and backward in the vast space.
Living - a test of skills in secret cabin living The space environment is extremely harsh, and the main factors harmful to the human body are high vacuum, high hypoxia, cosmic radiation, temperature differences, etc. Astronauts cannot survive and work in such an environment.
As a result, scientists developed a sealed environment cabin that is isolated from the outside world to protect astronauts. The airtight cabin where astronauts live, work and work is an important part of the spacecraft. It is an environmental control and life support system that ensures the health of astronauts.
The most important life support system is the water supply system. Its main task is to supply astronauts with living and drinking water.
The airtight cabin is a small environment, and the continuously generated pollutants must be purified to maintain fresh air in the cabin and ensure the health of astronauts. Due to the weightless floating, astronauts do not move as freely as they do on the ground. They are unstable and wobbly. They may turn over when they raise their heads and lean back, and they may not do so when they bend down.
3. Knowledge of space life
Eating - the simplest thing becomes strangely complicated. Eating and drinking water are ordinary things for people living on earth. But living in space in a weightless environment, astronauts’ diet becomes very complex and particularly strange.
It can be said that astronauts’ nutritional needs, food preparation, supply and their eating methods have certain particularities, which are very different from their diet on the ground. In essence, space food is the same as ordinary food on the ground. They both provide energy and nutrients to the human body.
However, in order to save the space of the spacecraft and the payload during launch, the space food carried by astronauts should be as light in weight and small in size as possible. For example, nutritious dried biscuits and dried sausages can be restored to a taste similar to fresh food by soaking them in water when eating.
In addition to being able to withstand the special environmental factors of aerospace, such as shock, vibration, acceleration, etc. without failure, aerospace food must also be based on the index of physiological changes of astronauts under weightlessness conditions. For example, muscle atrophy requires food to provide sufficient high-quality protein; bone loss requires food to provide sufficient calcium and a suitable calcium-phosphorus ratio and vitamins. How astronauts eat during spaceflight activities is a big test for them.
Under weightless conditions, a cup filled with water will be the same whether it is placed upside down or upside down. The water in the cup will not automatically float or spill out. If it is placed on the table, the cup will fly together with the water. stand up. Therefore, the original eating and drinking habits of astronauts on the ground are completely inapplicable in space.
Generally speaking, all kinds of food, parts, utensils, etc. are fixed. After the astronauts take out the food from the pantry, they have to cut a small opening in the composite plastic film bag containing the food, put the fork and chopsticks into the pocket and put it into their mouths.
In order to prevent food crumbs from flying everywhere and affecting the normal work of astronauts or equipment, this kind of food is often packaged in small packages and made into squares, rectangles or small balls similar to the size of the mouth. "Eat in one bite" food, no need to cut it when eating. If astronauts want to drink water or eat soup, soup, juice, or jam, they can directly squeeze it into their mouths bit by bit from a plastic bag or a toothpaste-like soft aluminum tube.
With the development of rocket technology, astronauts can bring more food from the ground. For example, wet or semi-moist foods such as juicy turkey and beef have the same moisture content as normal foods eaten on the ground.
Astronauts can now use microwave heaters to bake food in space capsules. This type of microwave heater is different from the heaters used on the ground.
It has some specially made recessed cells. In order to prevent the food from floating during heating, the food that needs to be heated must be fixed in these small compartments. After plugging in the power, the food can be heated to a delicious level in a short time.
With it, astronauts can taste hot and fragrant braised beef, scrambled eggs, pork chops and other foods, and the taste is not much different from that on the ground. Wear - a piece of clothing worth tens of millions of dollars. People's understanding of clothing is often limited to its features such as body protection, warmth retention, beauty, and generosity. However, when humans enter space, they will find that the role of space suits has already exceeded the traditional scope.
Because of the close-to-vacuum pressure environment, extreme temperature environment, lack of oxygen needed for life, and threats from space dust, space debris and space radiation, space suits are needed to protect astronauts in space. Provide a good protection and security system for your life and work. Space suits can be divided into indoor space suits and extra-vehicular space suits according to their functions.
When the spacecraft cabin leaks and the pressure suddenly drops, the astronauts put it on in time and connect the matching oxygen and air supply systems in the cabin, and the suit will be immediately filled with Pressure air supply, and can provide certain temperature protection and communication functions to ensure that astronauts can return safely when the spacecraft fails. Extravehicular space suits are even more complicated.
It is a guarantee and support system for astronauts to go out of the cabin and enter the open space to carry out activities. It not only needs to have independent life support and work capabilities, but also includes protection from extreme thermal environments and human body balance control, oxygen supply and pressure control, ventilation and purification of the microenvironment inside the suit, measurement and control and communication systems, power systems, and astronaut visual protection and Guarantee, but also requires a joint system with good mobility and an emergency oxygen supply system in the event of a major system failure.
The structure of the extravehicular space suit is composed of a microflow protective layer (outer cover), a vacuum heat insulation shielding layer, an airtight restriction layer, a ventilation structure and a liquid cooling suit, which is like an independent life support system. An extravehicular spacesuit system is usually much heavier than a strong person.
Its price is naturally high. It currently costs tens of millions of dollars to develop and produce an extravehicular space suit. When talking about space suits, we can’t help but talk about the “space jetpack”.
This backpack is about 1.25 meters high, 830 millimeters wide, has a total weight of 150 kilograms, contains 12 kilograms of liquid nitrogen, and has 24 nozzles. It is like a chair without a seat, placed on the astronaut's back.
Astronauts can control 24 micro-nozzles through the switch on the armrest to spray out the compressed nitrogen in the backpack, thereby forming reverse thrust of different sizes in all directions and achieving movement in different directions. With this jetpack, astronauts can somersault, rotate, and move freely up, down, forward, and backward in the vast space.
Living - a test of skills in secret cabin living The space environment is extremely harsh, and the main factors harmful to the human body are high vacuum, high hypoxia, cosmic radiation, temperature differences, etc. Astronauts cannot survive and work in such an environment.
As a result, scientists developed a sealed environment cabin that is isolated from the outside world to protect astronauts. The airtight cabin where astronauts live, work and work is an important part of the spacecraft. It is an environmental control and life support system that ensures the health of astronauts.
The most important life support system is the water supply system. Its main task is to supply astronauts with living and drinking water.
The airtight cabin is a small environment, and the continuously generated pollutants must be purified to maintain fresh air in the cabin and ensure the health of astronauts. Due to the weightless floating, astronauts do not move as freely as they do on the ground. They are unstable and wobbly. They may turn over when they raise their heads and lean back, and they may not do so when they bend down.
4. Knowledge or information about life in space
Eating - the simplest thing becomes strangely complicated. Eating and drinking water are important tasks for people living on earth. It’s a common thing, but when living in space in a weightless environment, astronauts’ diet becomes very complex and particularly strange.
It can be said that astronauts’ nutritional needs, food preparation, supply and their eating methods have certain particularities, which are very different from their diet on the ground. In essence, space food is the same as ordinary food on the ground. They both provide energy and nutrients to the human body.
However, in order to save the space of the spacecraft and the payload during launch, the space food carried by astronauts should be as light in weight and small in size as possible. For example, nutritious dried biscuits and dried sausages can be restored to a taste similar to fresh food by soaking them in water when eating.
In addition to being able to withstand the special environmental factors of aerospace, such as shock, vibration, acceleration, etc. without failure, aerospace food must also be based on the index of physiological changes of astronauts under weightlessness conditions. For example, muscle atrophy requires food to provide sufficient high-quality protein; bone loss requires food to provide sufficient calcium and a suitable calcium-phosphorus ratio and vitamins. How astronauts eat during spaceflight activities is a big test for them.
Under weightless conditions, a cup filled with water will be the same whether it is placed upside down or upside down. The water in the cup will not automatically float or spill out. If it is placed on the table, the cup will fly together with the water. stand up.
Therefore, the original eating and drinking habits of astronauts on the ground are completely inapplicable in space.
Generally speaking, all kinds of food, parts, utensils, etc. are fixed. After the astronauts take out the food from the pantry, they have to cut a small opening in the composite plastic film bag containing the food, put the fork and chopsticks into the pocket and put it into their mouths.
In order to prevent food crumbs from flying everywhere and affecting the normal work of astronauts or equipment, this kind of food is often packaged in small packages and made into squares, rectangles or small balls similar to the size of the mouth. "Eat in one bite" food, no need to cut it when eating. If astronauts want to drink water or eat soup, soup, juice, or jam, they can directly squeeze it into their mouths bit by bit from a plastic bag or a toothpaste-like soft aluminum tube.
5. What are some tips about the life of astronauts
Few people know what it is like to live in space. So far, only 538 people have had the opportunity to orbit the earth. Compared with the 7 billion people in the entire human race, 538 people can only be regarded as a drop in the ocean, and those who have lived in space for a period of time are even rarer.
According to the American Vox website, in recent years, five astronauts have been interviewed by the "Ask Me Anything (AMA)" on the social news website Reddit, and their answers told people In all aspects of space life, including the shocking and even life-changing experience of looking down at the earth from space, it also includes the trivial things of life such as sweating, eating, and sneezing.
These five astronauts are: Jeff Hoffman, who has participated in 6 space flights since 1986, Mike Hopkins, who has just returned from the International Space Station for several months, Canada's An astronaut, Chris Hadfield, who became the second person (after Neil Armstrong) to set foot on the moon during Apollo 11, the first manned mission to the moon. Buzz Orr Dehlin and retired American astronaut Ron Garland.
Being launched into space is both scary and exciting
Huffman wrote: "On the first space flight in 1985, when we exceeded Mach 1 I was frightened by the increasingly strong vibrations. For a minute, I kept thinking that there must be something wrong. But then I realized that I had experienced many short-distance flights before. , and the plane did not fall apart in the end, so I relaxed and started to enjoy my flight.”
The smell of the space station first caught your attention
Last June, Mike Hopkins, who just returned from the space station a few months ago, wrote: "When the spacecraft is docked at the space station, there is a little 'space' between it and the station. Once the pressure equalizes and the hatch opens, you will smell a metallic smell The smell of ionization is very unique and unforgettable. "Chris Hadfield said: "The air plug smells like ozone or powder."
Weightlessness makes you feel. Like a superhero
Hadfield said that his favorite thing to do in the weightless environment of the International Space Station is: "Flying, getting up, magically sliding from one end of the space station to the other, every time I always chuckle when I do it.”
In his second interview after returning to Earth, he wrote: “We even posed like Superman for photos. However, the interior of the International Space Station is really. Too small, not enough for Superman to stretch out, and he will hit the wall if he is not careful."
The shrimp dip is especially delicious in space
When asked about the execution." When it came to his favorite food during the Apollo missions, Buzz Aldrin said dehydrated shrimp dip was his favorite. "Most of this is freeze-dried, so we have to add water," he said. "We have very little shrimp, and there's a little bit of cocktail sauce, and when those shrimp dips hit the water, it's really, really nice."
6. Little common sense about space, introduction to space
The universe beyond the earth’s atmosphere, the entire space beyond the atmosphere.
Space physicists divide the atmosphere into five layers: troposphere (from sea level to 10 kilometers), stratosphere (10 to 40 kilometers), mesosphere (40 to 80 kilometers), thermosphere layer (ionized layer, 80~370 kilometers) and outer atmosphere (ionized layer, above 370 kilometers). About 3/4 of the atmosphere above the earth is in the troposphere, and 97% is below the stratosphere. The outer edge of the stratosphere is the highest limit for aircraft to rely on air support for flight.
Some high-altitude rockets can enter the mesosphere. The lowest orbit of an artificial satellite is within the thermosphere, and its air density is 1 that of the earth's surface.
Air continues to exist at an altitude of 16,000 kilometers, and there are still air particles even at an altitude of 100,000 kilometers. From a strict scientific point of view, there is no clear boundary between air space and outer space, but they gradually merge.
The Scientific and Technical Subcommittee of the United Nations Committee on the Peaceful Uses of Outer Space pointed out that it is currently impossible to propose precise and durable scientific standards to delineate the boundaries of outer space and air space. In recent years, there has been a tendency to use the lowest altitude of artificial satellites above the ground (100~110 kilometers) as the lowest limit of outer space.
7. Knowledge about space life
How is the life of astronauts in space different from ours? Space is a magical world full of charm, and life in space 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 full of dangerous space radiation. In an enclosed space station or space shuttle cabin, there is enough air for you to breathe.
More than 100 kinds of space food. Astronauts’ food is rich and colorful, and it has grown from a dozen kinds at the beginning to more than 100 kinds. Astronauts generally eat 4 meals a day, and the recipes within a week are not repeated.
Astronauts can eat sausage pies, spicy grilled fish, beef stew, brioche bread, black bean soup, tuna salad, biscuits, chocolate, yogurt, preserved fruit, juice and more in space. A variety of delicacies, and American astronauts can even drink their favorite Coca-Cola. The space dining table is specially made.
It is magnetic and can absorb cutlery such as knives, forks, spoons, bowls, plates, etc. It is equipped with a water cooler and heater on the table. When eating, astronauts must first fix their feet on the floor and their bodies on the seats to prevent them from floating around.
Some people like to chat while eating, but the most taboo thing about eating in space is talking while eating. Talking while eating will cause the chewed food bits to fly out of the mouth and float in the dining room or living cabin. If the astronauts are not careful to inhale the food into the nasal cavity, it will easily choke into the lungs and cause danger.
Astronauts cannot find the feeling of "lying down" in the weightless environment of space. In the earth's gravity environment, people are accustomed to defining the direction of gravity as "down" and the direction of "sky" as "up", which is what people often say "step on the earth and have a blue sky above your head."
Since you can sleep while standing, lying down, or lying on your stomach, astronauts can sleep floating in the space capsule, hung on the wall, tied to the bed, or hung from a beam. Go to bed and sleep next to the table. But most astronauts are not used to sleeping while floating.
Once they wake up from their floating sleep, they will have the feeling of falling into an abyss. In order to gain a sense of security, astronauts usually sleep on a fixed bed or in a sleeping bag fixed on the wall. When the sleeping bag is tightened, it can exert a certain amount of pressure on the human body and eliminate the feeling of panic.
Astronauts wash their faces and brush their teeth in a strange way. In order to prevent water from floating everywhere, they usually wipe their faces with a wet towel to wash their faces; when brushing their teeth, dip their fingers in toothpaste and rub it back and forth a few times, and then use Wipe your teeth clean with a wet towel and brushing is complete. If you brush your teeth like you do on the ground, toothpaste bubbles will fly all over the cabin.
Astronauts generally use electric razors to shave. When using them, you must be very careful about beard residue leaking from the edge of the razor. The space capsule is inherently very small, so environmental issues are extremely important.
If small stubble is floating in the cabin, it will be very difficult to clean up.
8. Information about space life
The space environment is extremely harsh, and the main factors harmful to the human body are high vacuum, high hypoxia, cosmic radiation, temperature differences, etc. These Adverse factors can cause serious harm to the human body.
In this environment, astronauts cannot survive and work. Facing the severe space environment, how can we ensure the safety of astronauts? Our scientific and technical personnel developed a closed environment that is basically isolated from the outside world, that is, a closed cabin to protect the astronauts.
Sometimes it is morning, sometimes it is night. People's long-term living habit is to "work at sunrise and rest at sunset", and sleep is generally arranged at night. The day and night cycle of a spacecraft during spaceflight is different from our day and night cycle on Earth.
A day on earth is a sunset and sunrise, and is set as 24 hours. The period of a sunset and sunrise during a space flight varies in length because it is related to the height of the spacecraft's orbit around the earth.
If the orbit is high, the day and night cycle will be long; if the orbit is low, the day and night cycle will be short. During the space flight of the spacecraft, the length of day and night is inconsistent. The day and night are long and the night is short. There is a day and night cycle of 90 minutes, and the longest night is only 37 minutes.
When the spacecraft passes from the sunny side of the earth to the dark side, it is like going from day to dusk and night. The space shuttle is very fast. When the sun rises, it jumps out like a "thunder", and when the sun sets, it disappears as quickly as a "whirlwind."
An astronaut once described a day in the universe this way: In the morning, the computer-controlled clock wakes us up. Wake up and open the curtains to look at the universe. The sky is so beautiful.
But after a while, the sun disappeared, the sky darkened, and night came. We thought it was time to sleep again. It's really interesting, sometimes it's morning, sometimes it's night... It doesn't matter whether you sleep standing up or lying down. The most special thing in space is the sleeping posture. When weightless, the body is completely relaxed and will naturally form a bow-like posture.
Aerospace experts believe that sleeping in space is much more comfortable with the body slightly bent into an arch shape than lying flat on the back completely straightened out. When astronauts fly in space, their sleeping bags are usually fixed to the bulkhead inside the spacecraft. If not, the posture inside the spacecraft may collide with the bulkhead when the engine is started.
Therefore, astronauts generally prefer to sleep with their sleeping bags close to the bulkhead, so that they are as comfortable as sleeping on a bed. In weightlessness, you can't tell the difference between up and down anyway. It doesn't matter whether you sleep standing up or lying down. Therefore, astronauts can sleep against the ceiling or stand upright against the wall. They can sleep however they want.
Since people float when weightless, astronauts will find it difficult and inconvenient to move, and their movements will not be as coordinated as on the ground. He is unstable when sitting and swaying. He may turn over when he raises his head and leans back, and he may do somersaults when he bends down, so all movements must be carried out carefully.
Astronauts can look at the earth's scenery during spaceflight, which is also one of the great pleasures of their space life. Since ancient times, it has been the most beautiful reverie of mankind.
The earth that the astronauts saw from the spacecraft was extremely beautiful. It was a green sphere. When you look carefully during the day, most of the earth is light blue, and the dense forest belt looks even bluer. The only real thing is China's *** plateau area.
Some mountain lakes look bright and bright green, like the color of copper sulfate mines. In areas where the temperature is very low and there are no clouds, such as high mountain areas like our country's mountains, you can clearly see the landforms there.
The most dazzling spectacle that astronauts can see is the Kavir Salt Desert in Iran. This desert looks like Jupiter, with a red, brown and The big white vortex is the dazzling trace left by the salt lake after generations of evaporation. It sparkles like a fairy. Inseparable from physical exercise Astronauts living in space also cannot do without physical exercise.
In addition to enhancing physical fitness, it also has special significance: enhancing the ability to adapt to weightlessness and other aerospace environments, and reducing the harmful effects of adverse environments on astronauts during spaceflight. In long-term spaceflight, there are "small stadiums" specially designed for astronauts' physical exercise, and some special aerospace sports equipment is set up for astronauts to use.
These devices include bicycle dynamometers, mini-tracks, spring tensioners and negative pressure cylinders. Astronauts sailing in the space, like people on earth, need to perform personal hygiene, such as brushing teeth, washing face, bathing, defecating, etc.
Handling sanitation and waste under weightless conditions is very complex and requires special facilities and skills. When you brush your teeth in weightlessness, the toothpaste foam will easily float, and water droplets will fly in the cabin, which will affect people's health and the normal operation of the equipment.
Astronauts in the spacecraft cannot use the toothbrushing tools and methods on the ground. If you do that, the water may leak out at some point and the water will float. Therefore, the astronauts can only use a relatively simple way to brush their teeth.
The United States uses a special gummy candy that allows astronauts to chew it thoroughly instead of brushing their teeth to achieve the purpose of cleaning their teeth. When astronauts wash their faces, they actually scrub their faces with a wet towel soaked in cleaning care solution.
Later, lay a towel over the hair brush and use it to comb your hair. If astronauts live on board for a long time, they will also need to take a shower.
Long-term manned aircraft will be equipped with aerospace bathroom facilities designed and manufactured by aerospace engineering and technical personnel. This kind of bathroom is nothing more than a strong nylon cloth bath cover. The bath cover has a fixed frame at the top and bottom. The upper part is connected to the ceiling and the lower part is connected to the floor. It becomes a sky-high closed bath cover. It is usually folded and fixed on the ceiling of the living cabin.
There is also a circular water tank, nozzles, and electric heaters on the ceiling. The water tank for bathing is connected to the large water tank by pipes. Before taking a bath, first prepare the purification adsorbent in the wastewater recovery and purification device to prepare it for recycling and purifying the sewage during bathing, then clean the water supply pipeline, water pumping device and filtration and purification device (to remove impurities and bad odors), and roll the The nylon cover on the ceiling is lowered to the bottom frame and fixed, forming a barrel connected to the ceiling floor, just like a completely transparent large glass tank.
Start the electric heater to heat the water in the water tank to a suitable temperature. At this time, people can take off their clothes and enter the bathroom. There is a pair of fixed slippers at the bottom of the cylinder so that people will not float after putting them on.
Before turning on the faucet, you should put on the respirator. The respirator is connected to a hose that leads to the outside. The astronauts can breathe the air inside the cabin.