1, drink water through a straw
In space, gravity is zero, and it is impossible to drink water from a traditional cup without any support. In order to solve this problem, astronauts improved the drinking water system, and all the liquids were put in containers and drunk through straws. Because there is no gravity, liquid will float, so astronauts need to carefully control the strength of the straw hook to avoid liquid leakage.
2. "flying fish"
In space, some small particles and water molecules form wonderful forms, which are called "flying fish pie". In some cases, they can arrange themselves in the shape of fish. Although scientists have explained the physical mechanism, it still makes astronauts feel mysterious.
3. Mysterious light
Due to the coverage of the earth's atmosphere, people can't witness the mysterious and wonderful aurora on the earth. But in space, it's different. Astronauts can enjoy wonderful lighting performances and see all kinds of colors and changes beyond our imagination.
4. Natural nails
In space, astronauts' nails will become slightly soft and blue will become dull. This is because in the microgravity environment, astronauts' nails no longer need defying gravity, but become more fragile and grow slowly.
5, speed and time
According to the theory of relativity, when an object moves fast, its time will be relatively slow, and then it will be out of sync with the stationary object. In space flight, astronauts are very fast. Experiments show that their biological clocks will lose rhythm because of this "time distortion", which sometimes causes health problems such as sleep disorders, and also makes some physical and medical experiments of great significance.
In a word, space exploration is a great cause of mankind. In space, the human body has a wonderful interaction with the external environment, accompanied by a variety of colorful experiences and feelings. These interesting things not only make people better understand the mysteries of space, but also deepen their understanding of life and the universe.