When Chang 'e V went to the moon at the end of last year, she also brought seeds. Now these rice seeds have been harvested, and the rice grains are one centimeter long.
But has anyone ever thought that seeds can mutate after a trip to the sky? What about our astronauts? What will happen to mankind in heaven, will it become a monster?
The United States is an early country to develop aerospace, and there are many astronauts who have been to the sky, among whom 12 astronauts have also landed on the moon. In 219, NASA scientists examined Scott who stayed in the International Space Station for 34 days. They found his twin brother Mark with the same genes for genetic comparison, and found that Scott's "immune system and DNA repair function" had a mutation. From a genetic point of view, this is an irreparable permanent injury.
Before this, astronauts who have been in the sky have also been found, and there will be other abnormal conditions in their bodies.
It is an obvious phenomenon that astronauts will grow about five centimeters taller after staying in the sky for a period of time. This "welfare" is envied by many short people. On earth, due to gravity, human beings will be suppressed by their own gravity, but in the universe, when they are in weightlessness, the muscles and bones of the body will become relaxed, the gap between joints will increase, one joint will increase a little, and dozens of joints of the body will "relax" together.
But don't worry about being happy yet. "Growth" comes at a price. More than half of the astronauts will encounter spinal pain, and their height will be restored after returning to earth, and they are more prone to symptoms such as disc herniation.
In addition, the phenomenon of muscle atrophy and osteoporosis is very obvious. According to NASA's records, some astronauts lost 2% of their muscle mass during their 11 days working in the International Space Station. It's really stressful and light, and bones and muscles become useless due to weightlessness and degenerate unconsciously.
In addition to the body, there are also problems with the astronauts' blood.
During an ultrasonic examination, the astronauts of the International Space Station found that five of the 11 astronauts in the station had stagnant jugular vein blood flow or were moving back and forth, and two of them had retrograde blood flow.
They found that the blood in the jugular vein of two astronauts actually started to move in the opposite direction, from the heart to the head. Scientists described this symptom as "extremely abnormal". Scientists on the ground agreed that it might be caused by a blockage somewhere in the blood vessel, and the blood changed direction. Sure enough, in later scans, they found blood clots in their bodies, which is a symptom of thrombosis.
An American professor also analyzed the causes of death of seven American astronauts who landed on the moon, and found that three of them died of cardiovascular diseases, which is very high. However, due to the small number of samples that went to the moon and the sky, it is impossible to draw any conclusions.
The professor irradiated the experimental mice with the same radiation as the moon for six months, and the experimental mice also showed similar atherosclerotic cardiovascular diseases, which was very similar to the experience of astronauts.
Because blood and other liquids have no stable gravity in the body, these liquids will also float to the head, which will also cause problems such as swelling of the optic nerve, slightly flat eyeball and decreased vision.
It is not easy to train every astronaut. China has a population of more than one billion, and there are dozens of astronauts. The training process of each astronaut not only costs a lot of money, but also an excellent astronaut is hard to find. If you treat them like treasures, you can't let them get hurt in space.
In the early years, when we developed the space industry, we didn't have anyone else to guide us, but we had to explore it step by step. Some of the data of NASA mentioned above were confidential before, but it wasn't a secret until the space technology of various countries improved in recent years. However, Yang Liwei, China's first space hero who carried out manned space mission, was injured in this groping process, and his face was covered with blood when he returned to the earth and left the cabin, and he never went to heaven again.
In the past, China's space flight was a short trip, and it took only a few days to get off the plane. Even if you feel a little unwell, you can recover after coming back for a few days. But now that China has its own space station, it is normal to stay in the sky for a few months, so the health problems of these astronauts must be considered.
before shenzhou 12 docked with the tiangong space station, the tianzhou cargo spacecraft had already delivered a large package of materials first. In addition to more than 12 kinds of space delicacies, there is also a space bike which is also very eye-catching, and this is an important tool to deal with muscle atrophy in space environment.
In addition to strengthening exercise, there is now a solution to the problem of blood coagulation in space. Scientists have developed an antithrombotic solvent, which astronauts need to inject to prevent blood coagulation.
In addition, astronauts need to undergo professional medical training before going into space. Usually, they can solve their own skills such as tooth extraction and wound suture. Astronauts are generally equipped with cardiac defibrillators, first-aid kits, medical books, ultrasound and saline on the space station.
if you really encounter an unsolvable problem, the doctors on the ground will be on standby at any time to give remote guidance to solve it. Every space flight is also inseparable from the tens of thousands of staff on the ground.
People only see the scenery of astronauts shuttling through the universe, but few people can see the price paid behind them. China can become a space power without the efforts of these astronauts and countless behind-the-scenes staff. They are people worthy of our respect and stars we should chase.
# Almighty Creator # # Astronauts' Daily Life in China Space Station #