Ye Yanyu is a returning astronaut, and the earliest astronauts who went up were technicians.
& But because after coming down, most of the body problems occurred.
Although the effect of gravity on the nutrient transport channels at the molecular and cellular level is small, it is not absent, and cumulatively, the circulatory system of the entire human body will inevitably have problems.
There is degeneration of bones and muscles.
In order to solve this problem, a gravity chamber was experimentally used, but this gravity is not really gravity, but centrifugal force.
Rotating the gravity module also creates an electromagnetic force that has less impact on the entire space station and the human body inside the gravity module than on the non-gravity force.
It's hard to assess right now.
The space station is in the process of licensing itself a new electromagnetic shielding capsule to solve this problem.
So the gravity chamber is now only experimental.
From the beginning of the biological cabin being put into use, the astronauts who went up were basically drawn from the army's Dark Moon-level masters.
Among them, the person in charge of space life research is a researcher from the Institute of Life Sciences of the Central Academy of Sciences.
Ye Yanyu was the first to go up.
Because for reasons of the health of the astronauts, NASA has not been allowed to be on the space station for a long time, but has been regularly returned with a return capsule.
The new shuttle found a lot of problems when returning from wind tunnels, load strength tests and computer simulations.
Originally, NASA wanted to take a look at the prototype first, but because of the annual meeting of the Academy of Sciences, the quality requirements for project research were raised, and the development of the shuttle returned to the basic materials and engines.
The return capsule with the launch vehicle is currently the lowest cost option.
But overall, it's a big waste.
The problem with the space station is that it is too expensive to maintain and operate.
Supplies have become a daily task for the agency.
NASA is conducting daily projects to reduce transportation costs, and many of these proposals have been rejected at this annual meeting.
In the process of completing the integration of each capsule of the space station, nanocapsule materials that are difficult to manufacture on Earth have been developed, and their strength has been verified on the return capsule.
The biggest advantage of the capsule is that it is gravity-free, easy to arrange the crystallization of materials, and even can complete multi-layer crystallization with very complex structures.
It is very difficult on Earth, and even if it can be manufactured, the energy required is astronomical, and the yield is very low.
But this is the return capsule and the capsule material.
In order to increase the power of protection.
This material is relatively heavy, and it is wasteful to re-lift into the air.
In order to save costs, lightweight materials are also needed.
Zhang Chun postponed many forward-looking research projects of the Central Academy of Sciences, asking them to focus on rocket technology and materials technology.
Rocket technology is for application.
New materials and nanotechnology can further reduce the cost of launch.
Increase rocket thrust.
The payload is increased on the basis of a rocket of the same size.
On the basis of materials and manufacturing processes, new ramjet engines, booster rocket engines and other projects can be carried out.
Without this foundation, the hasty conduct of scientific research beyond capabilities would place a heavy burden on the state.
The same is true for biotechnology.
Experiments that directly exposed organisms to high radiation and gravityless space were also canceled, and the study of simulating biological environments was concentrated.
The experiments in the biological chamber verified one of Zhang Chun's inferences, that is, the lower the organisms, the faster the mutation, the faster the individual dies, but the easier it is for the population to continue, and they use mutation and reproduction to adapt to the environment.
The more advanced the organism, the more complex the organism, the longer the mutation affects the individual, the longer the survival time and function of the individual, but the worse the ability of the population to adapt to the environment, and eventually leads to the extinction of the population.
The creatures brought back by the astronauts and the re-entry capsule also proved that the organisms will readapt according to the environment and some functions and abilities will be restored according to the environment when they return to the Earth environment.
But this is only scratching the surface.
Some lower organisms have irreversible changes from the cell structure and metabolic system, and the progeny that reproduces in large numbers cannot survive.
But not all of them will die.
Through reproduction, some irreversible gene fragments are transmitted within the same population.
Ye Yanyu brought a kind of lichen, symbiotic bacteria and symbiotic algae after three generations of reproduction in space and three generations of reproduction on earth.
The lichen has been proven to tolerate extreme environments and grows faster than other lichens in the base climate, even growing tens of centimeters in Yunnan.
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But this lichen degrades over time and gives rise to other plants with some of the properties of the parent parent.
In a multi-species environment, this fragment of a genetic mutation is just a pebble thrown into the ocean and will quickly be submerged.
However, under extreme climatic conditions, the plants derived from it allow the genetic mutation fragments to be solidified and strengthened.
Ye Yanyu brought the offspring that had bred in the polar environment to Shenlongjia, preparing to breed in a high-altitude and high-humidity environment.
He went to Songbai Town because the Life Science Institute here had established a medical research institute specifically for Darkmoon.
Although the human body itself has strong immunity and anti-mutation ability.
Some of the mutated cells are quickly eliminated by the immune system, but the human body is also home to a large number of microorganisms.
They are able to perform work that helps the body to digest and maintain the internal environment.
Because Darkmoon uses various extreme environments to boost its immunity, the microbial population in its body is many times more than that of ordinary people.
According to the West, they are not clean and are standard "poisonous people".
The mutations of these microbes may not be able to escape the encirclement of Darkmoon's immune system, but what about others?
In fact, with the rate of evolution of the environment in the border areas, the Midwest, ** regions are faster than the ability of natives to adapt to the environment.
The mortality rate of some elderly and infirm patients with poor adaptability is very high.
The overall trend of the country's population has dropped to 5 percent as the area of the old areas expands, and the population of the mainland of the Central Plains must still be much higher than that of the border areas.
The birth rate in the border areas is declining, no matter how high it is.
The mortality rate has dropped to about 1.5 percent.
This is a situation where the scale of the war is not large, the country is stable, the people's living standards, nutritional structure, and medical security are very good, and there is still such a high mortality rate.
The main reason is that some families in the border areas have flowed into the interior, and the mortality rate of the older generation is very high, and it often brings complications that are difficult to deal with as soon as the disease occurs.
Fortunately, the children of these people are doing very well.
Otherwise, the mortality rate will be even higher.
The Institute of Life Sciences fears that these changes brought back by the astronauts will exacerbate the situation.
Wu Hao has made up his mind to further reduce and eliminate the safe zone, but this measure has greatly increased the abnormal mortality rate among the population when they come into contact with living things.
In the context of intensified research on immunization-boosting vaccines and universal access to the health system, an order was issued to keep infant mortality to a minimum.
This situation has already attracted Zhang Chun's attention, because some old people that Zhang Chun knew have passed away one after another, and although he did not rush to the memorial service, heartache is difficult to avoid.
Ye Yanyu didn't know that the couple he met by chance in the town was Zhang Chun and his wife.
There are few service facilities in Songbai Town, but many families have most of the courtyards open.
Drink tea, mix a meal, as long as it is convenient for the host's family, basically no one refuses.
Of course, no one really eats for nothing.
Generally, some ingredients will be twisted to "partner".
Mr. and Mrs.
Zhang Chun and Niuniu, who had come back to visit her parents, had just bought something at the store and had dinner at an acquaintance in the town, because the meat sauce made by the family was very good, and the ingredients and fermented bacteria were also specially made.
It's very suitable for the taste of two people, and the nutrition is enough.
When I saw Ye Yanyu, I said hello.
"You know me?"
Ye Yanyu asked strangely, but it was indeed time for him to eat.
"You're an astronaut, and you look like you on TV."
A child looked at him curiously.
Ye Yanyu sat down with a smile and said embarrassedly: "I didn't bring anything, so I'll trouble everyone."
"Under normal circumstances, I go to a restaurant where I am prepared, and it is really rare to be recognized, because the TV station will more or less put makeup on them to make them look beautiful.
The real Ye Yanyu is actually a short man who doesn't look bad, and life in space has really increased the burden on his body, and he is now in the recovery period.
Zhang Chun smiled and said, "Actually, I saw you at the Institute of Medicine, but you were busy and didn't see me."
The body is recovering well.
At this time, I will go back to the research institute and have nothing to eat, so I have to make my own food. ” "Fortunately, I have gained some weight, and I am increasing my exercise to lose weight."
Ye Yanyu looked familiar, but he really didn't remember where he had seen it.
Ye Yanyu also smeared a little meat sauce on a kind of nest-shaped pastry, which smelled very fragrant, but as soon as it reached the mouth, the taste was very strong, and after only a few bites, the pores on his body exploded, and sweat flowed out, but it was not spicy.
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After eating, your teeth will be fragrant.
"This sauce is good."
Ye Yanyu praised.
"You'd better eat less, you're losing weight."
The host was very kind.
Niuniu has been teasing children, saying that she is not interested in adults who are not parents.
For Niuniu's state, Zhang Chun can only take her to meet and talk to strangers as much as possible, and the rest can only wait for her to grow up.