Chapter 155: Freezing Technology

If God really exists, then He should ask for my forgiveness. Pen? Interesting? Pavilion wWw. biquge。 info

Without reverence, why bother talking about salvation?

In addition, this rather religious way of dating has been hostile to a few extremists within the Earth fleet.

After Zhou Chen received the report of the Civil Administration Committee, he thought about it for a while, and actually agreed with the use of the new calendar, but he also had reservations, and in the future, when the textbooks talked about things before the evacuation, they would still use the years before the evacuation, not the first few years of the new calendar.

After all, although it is a new beginning, people still can't forget their roots.

As for the adjustment of the calendar, there is no doubt that the understanding and support of the advisory group has been smoothly.

Zhou Chen quickly formed it into a captain's directive, and sent the results of the discussion of the advisory group to the Civil Administration Committee, asking them to refer to the new calendar to formulate regulations for the use of the new calendar for the whole ship.

"Then there is the second question, how to deal with the problems left by the earth!"

This was a tricky question, and when Zhou Chen threw it out, all the members of the advisory group frowned.

The so-called legacy of the earth refers to the situation on this side of the earth after the departure of the earth fleet!

Although in the eyes of the people on Earth, the departure of the Earth Fleet is equivalent to abandoning the Earth. But Zhou Chen and the others could not fully agree with this statement, their evacuation was a last resort, but at the same time, they would never leave no heritage to the earth.

In fact, the Earth Station will be the richest property left by Zhou Chen, which can accommodate 1.1 billion people to take refuge.

At this time, the materials in the station have been well stocked, as long as the earth station is hidden in the atmosphere of Jupiter, by consuming the internal reserves, and then ingesting hydrogen and helium from the atmosphere of Jupiter as an energy source, then the earth station is enough to ensure the long-term life of 1.1 billion people.

"Before handing over the Earth Station, I felt the need to integrate the countries on Earth!" Stanley frowned, thought and replied.

Zhou Chen nodded slightly: "Indeed, the earth is now in a mess, and all places are in a state of tension, if this situation does not improve, when the aliens come, the earth will have no organizational ability at all." ”

"How many people in the station have not been evacuated to the habitation ship at the moment?" Gu Qiushi suddenly asked.

Zhou Chen replied: "At present, there are still 1.32 billion people in the station, and the selection work is currently being done, and the plan is to evacuate 620 million people to the residential ship, which will be completed before New Year's Day in 2051, and there will be 700 million people left in the station by then!" ”

Gu Qiushi nodded and said, "I have an idea, in addition to the evacuees from various countries, most of the people left behind in China and the United States are in the station, why don't we form an Earth Federation Government before leaving?" ”

"You mean ......"

The participants are digesting Gu Qiushi's proposal, as Gu Qiushi said, it is a very feasible plan to gradually establish a federal government in the earth station.

Now that the garrison is completely under the control of the fleet, it is not at all difficult to select a federal government for them. In other words, as long as Zhou Chen and they are willing, they can form a federal government in minutes!

And as long as the management of the station is unified, then before the arrival of the aliens, the federal government of the earth on this side of the station has every chance to intervene in the chaos on the earth, and then reintegrate the earth, and then the population shortage of the earth station is insufficient, and the people who stay may not have a chance to avoid the disaster.

"I think this plan works, and we should do it!" Meplaf slapped his palm, looking very excited.

Zhou Chen also nodded and agreed: "At that time, we can choose an heir, and he will take over the supreme authority of the Earth Station!" ”

"By the way, I have one more thing to say!" Zhou Chen suddenly thought of something and said.

"Please!"

"It's about freezing technology."

Zhou Chen narrated: "The School of Life Sciences recently reported their research progress, and it is expected that a mature life cryogen device will be completed within five years. ”

"You mean life cryonics?" Stanley muttered.

"Yes, this technology will be ready for use in five years!"

"Really?" Gu Qiushi asked in surprise.

Zhou Chen nodded solemnly: "The technology has been overcome, and the difficulty now lies in how to batch it." ”

In fact, before this, some people in the Earth Fleet have mentioned this technology more than once, thinking that if the freezing technology is adopted, more people can be taken away from the fleet.

Zhou Chen knew that their vision was good, but it was not easy to put this technology into practice.

There are several technical problems encountered here, first of all, the so-called freezing technology, in fact, is to quickly freeze the human body to -196 degrees below zero, at this temperature, all chemical reactions in the human tissue are in a state of stagnation, then the tissue itself can be well protected, which is equivalent to suspending the life cycle of the human body, so that the human body can sleep forever.

It has excellent application prospects, such as some diseases that cannot be cured now, patients can be frozen first, and then thawed for treatment after the relevant treatment methods appear in the future, although it seems to be science fiction, but purely theoretically it can be achieved. Therefore, there have been countless scientists engaged in research in this area.

Because it is theoretically achievable, in many science fiction novels, this technology is always used ahead of time for long-distance interstellar travel.

So much so that when readers mention science fiction, they naturally think of cryonics technology, and they inertly think that as long as the scientific level develops slightly, this technology is easy to achieve.

In fact, there are some misunderstandings in this, why do science fiction novels mention freezing technology more? Not that it's easy to implement, but because it's theoretically proven to be achievable, and such a technology that works so well without bugs is naturally like it was prepared for interstellar travel, and science fiction naturally has to be adopted.

Just like the theory of relativity thinks that if you go around the edge of a black hole and come back, you can see the Earth in a few hundred years, which is indeed possible in the future, but will anyone really use this method to see the "future"?

Moreover, the concept of "cryodormancy" is based on the discovery of the objective fact that "tissue cells will be dormant in ultra-low temperature environment", and this discovery is a manifestation of the weakening chemical reaction in a low temperature environment.

However, is it found that low temperature can weaken chemical reactions and make tissue cells dormant, which is equivalent to "cryo-dormancy" can be easily achieved?

The answer, of course, is not!

The current problems faced by refrigeration technology are, on the one hand, energy, what energy is used to provide an environment of minus 196 degrees, the energy consumed to maintain such a low ambient temperature, and the large-scale investment in the construction of refrigeration equipment, and the energy consumed by a person's normal life, is the input-output cost-effective? Don't end up saving energy by not freezing it.

On the other hand, cryonics technology needs a relatively stable state, and can this be satisfied in astronautics?

Of course, with the current technology of the Earth Fleet, it is still very easy to provide sufficient energy and maintain stability.

What really shackles the application of freezing technology is actually the supporting technology of life sciences.

It is well known that the branch of life sciences left by the Odo civilization to the Earth fleet is crippled, and it is not many years more advanced than Earth.

Freezing technology involves rapid cooling and rapid warming, which is relatively not particularly difficult for small objects, so the success of freezing a small mouse is far easier than freezing a puppy.

However, the volume of the human body is relatively large, and such a large volume makes it impossible for all tissues of the human body to be reduced to minus 196 degrees simultaneously in an instant.

In other words, if the human body is placed in a cooling environment, the temperature will gradually drop from the outside to the inside, and it is impossible to instantly make all the cells in the body enter a dormant state, and when the external cells enter dormancy, the internal cells are not completely dormant.

So the cells that have not yet entered dormancy do not need to be supplied with nutrients? Definitely not, so during the cooling process, some tissue cells will inevitably appear in a state of "starvation" all the time, and this phenomenon is the same during the thawing process.

And these are not the biggest weaknesses that restrict cryo-dormancy, the real weakness of cryo-dormancy technology is that crystallization is almost certain to occur during the rapid cooling process.

In the low temperature environment, the changes in the properties of substances are divided into two forms: vitrification and crystallization, and the human body contains more salt ions, and the cooling process takes the road of crystallization. As a result, a large number of crystals are formed during the cooling process, which will puncture the cell tissue, causing tissue damage, and at the same time, the uneven temperature will also cause the salt concentration inside and outside the tissue to change, and the osmotic pressure will dehydrate the cells.

If freezing is still mandatory in this case, then after thawing in the future, it will not be the structure of the human body, but a puddle of soft and lying meat.

So what is the solution, it is very simple, drain all the blood of the human body in a very short time, and immediately fill it with a special protective agent! Moreover, as far as possible, there is no trace of water and salt ions left in the human body to avoid crystallization during the cooling process.

This is almost impossible because every cell of the human body contains water and is also rich in various ions.

Therefore, it is impossible to completely non-destructive freezing, and what science and technology can do is to try to find a protective agent that can protect tissue cells, and try to find irreparable damage caused by freezing.

In the production process of biological agents or protein lyophilized powder, the freeze-drying process needs to be quickly cooled to about -70 degrees, and trehalose and mannitol are used as protective agents in the process. But the human body can't do this, otherwise it will become a "dry corpse" to protect.

But the Life Science Institute led by Cai Xiaoxi has found another way! That is by injecting some kind of special nanomaterial!

This particular nanomaterial is in fact a myriad of nanorobots that are injected into the human body, and these tiny nanomolecules combine with the phospholipid structure of the cell membrane to form a thin coating on the phospholipid surface.

This thin layer usually does not affect the membrane protein recognition of the cell membrane and the selective passage of general substances, but when the temperature drops to 4 degrees, this thin layer will undergo a qualitative change, and it will become like a hard shield, firmly protecting the membrane structure of the cell.

The wonderful thing is that at this time, the holes reserved in the thin layer still do not affect the transportation of general substances, and can still maintain cell activity to a minimum.

It is not until the temperature drops to -20 degrees that the thin layer is completely closed, and at this time, the cells basically stop their life activities. Then the temperature can drop all the way down to -196 degrees! (To be continued.) )