1. Sleep
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Astronauts travel around the Earth in the sky, and the sunrise and sunset in space depend on the time it takes the spacecraft to circle the Earth. Sometimes the sunrise and sunset alternated many times in 24 hours, and the astronauts could not follow the living habits of \"sunrise and sunset\" on Earth, so they had to arrange work and sleep by the hour mechanically.
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Astronauts can't find the feeling of \"lying down\" in the weightless environment of space. In the weightless environment, people lost the reference coordinates of \"up\" and \"down\
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2. Eating
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The space table is specially made. It is magnetic and can attract knives, forks, spoons, bowls, plates and other utensils, and the table is equipped with a water cooler and heater. When eating, the astronaut must first fix his feet to the floor and his body to the seat to avoid flapping. In the face of the food on the table, we must pay attention to the coordination of the bowl, the rice, the mouth, and the chewing. The bowl should be gentle, the action is too fierce, the rice will float out of the bowl, the rice, the dish should be decisive, the clip should be clamping, clamping, it is best not to pull in the bowl, so as to avoid the food floating away, the use of a fork is the best effect.
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After the food is clamped, open your mouth quickly and shut up quickly, because even if the food is put in your mouth, it will \"fly\" away if you don't shut up; The pace of chewing should be slowed down, and eating slowly is conducive to digestion, and can also reduce the production and excretion of exhaust gas in the body to avoid pollution of the astronauts' living environment.
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3. Wash your face and brush your teeth
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Originally, Americans used a special gum and chewed it thoroughly in their mouths instead of brushing their teeth, while Soviet astronauts used a towel wrapped in their hands to massage and scrub inside their mouths instead. These two methods are simple, but the bacteria in the mouth are not easy to remove. Later, a sealed water absorption method was invented. Astronauts will be able to clean their teeth and mouths more thoroughly in space.
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Astronauts use a sealed razor that connects through a sealed tube to the vacuum cleaner, which sucks the stubble into the waste disposal tank.
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Space haircuts are not easy, so both men and women have to cut their hair shorter and shorter before they go up. But what about long flights and long hair? The astronauts had to work together to help each other, one cutting hair and one vacuuming the clippings.
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4. Taking a bath
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The United States' Skylab and the Soviet\/Russian 'Peace' space station both had 'bathing rooms'. The early bathroom was actually a cylindrical shower cover made of strong impermeable nylon cloth, which was connected to the ceiling and the floor, and topped with a water tank, nozzle and heater. Before taking a bath, the astronaut should wear a respirator, earplugs and goggles into the cover, and after being sealed, the respirator is connected to the outside world, and you can open the faucet to take a bath. Since there is no gravity, the water does not automatically flow down from the nozzle, and the water in the tank needs to be pressurized to make the water spray out through the nozzle. After taking a bath, the water is collected into the waste water tank by the purification and adsorption device, and then reused after purification.
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Later, American scientists improved the space bath. The bathroom is turned into a bath cover, the cover is subjected to 0.8 atmospheric pressure, the lower part of the bath cover is equipped with an extraction fan, the astronaut takes a bath, open the shower faucet and the extraction fan, the above water, the following water, so that there is the same bathing effect as being in the earth. Although water can be purified and recycled, the space capsule has limited water storage, so American astronauts usually only wipe their bodies with sponge soaked in bath liquid.
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5. Toilet
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A bathroom in space is a vacuum. To go to the toilet, you must sit on a carefully designed toilet. Put your feet in the fixed foot cover, tie your waist with a seat belt, and hold the handle with your hand.
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If it is stool, instead of flushing it with water, a special pump is used to suck the stool into the plastic box. Each time, a new box is replaced, and the plastic boxes containing the feces are catapulted into space. If it is urine, it is also pumped into a specially shaped cup through a rubber tube and poured into a pool of sewage under the floor.