I have a shelter in the last days

Chapter 326 Solar System
So the scientific research department proposed a new generation of mothership spacecraft to solve these problems.

The Solar System is the name of this new generation of mothership spaceship, which is a huge spaceship that can directly carry tens of millions of people.Almost all of its applications are new scientific and technological achievements in recent years, a new generation of super alloys, a new generation of fusion reactors, a new generation of propulsion engines, a new generation of pulse engines, a new generation of gravity simulation systems... This includes the entire human civilization. The master of research and deciphering the achievements of alien technology over the years also includes the highest achievement of human civilization's self-developed technology.

In the design, this is an ultra-large spaceship with hundreds of millions of tons, and the mass of just one spaceship is equivalent to the combined mass of 200 old-fashioned spaceships.

It is designed in a cylindrical shape as a whole, which is to facilitate its own rotation to generate simulated gravity; there are hundreds of small spaceship entrances and exits and docking ports around it, which are for the release of small spaceships and compatible connection with all levels of unit cabins of the old generation; its head Multiple distributed propulsion devices are installed at the head and tail respectively. The reason for choosing a distributed propulsion device is that if a single high-thrust propeller is used, the reaction force of the propeller will be too concentrated, resulting in metal fatigue and material deformation, which will affect the life of the spacecraft. And the propeller is also installed in the front for the purpose of slowing down.

The spacecraft provides a total of three propulsion devices. The first is the pulse engine, which is a propulsion engine powered by fusion fuel to produce a small nuclear explosion. Its advantage lies in its huge thrust, but its disadvantages are also obvious, that is, the thrust cannot last long and cannot be fine-tuned Thrust is mainly used to obtain initial speed acceleration and deceleration and emergency direction adjustment; the second is the ordinary jet engine, which is a supplement to the pulse engine. Its thrust is moderate, and the thrust can be adjusted infinitely. Minor corrections and power supplements, etc.; the third type is the Hall effect engine, which is a long-lasting propulsion engine. The power it provides is not large, but its energy utilization rate is hundreds of times higher than that of ordinary jet engines. If it is turned on for a long time during the interstellar voyage, although its thrust is small, it can use time to accumulate acceleration.A total of 20800 of these propulsion devices are distributed not only at the front and rear ends of the spacecraft, but also have corresponding propulsion points around the entire spacecraft.

The ship was a real behemoth, the size of an asteroid.It can be said that it is not only a spaceship, but also a base that can fully carry a civilization.

What is even more exciting is that the Kunlun Fleet has approved to build this spaceship with all its strength in the remaining ten years, because only with such a spaceship can human civilization truly reproduce in the interstellar voyage for a long time.

In the 165th year of the new civilization, two years later than the original plan, human civilization has completed its sixth national genetic optimization.Human gene optimization relies on a man-made retrovirus.Retrovirus is a special kind of RNA virus. For example, HIV is the most typical retrovirus, but the RNA of retrovirus does not directly replicate itself, but after entering the host cell, the RNA contained in it The RNA is synthesized into double-stranded DNA by reverse transcriptase, and the double-stranded DNA is integrated into the chromosomal DNA of the host cell by integrase to form a provirus. At the same time, a lifelong infection is established and can be passed on to daughter cells as the host cell divides.

Simply put, a retrovirus has the ability to insert its own gene fragments into the host genome because of its natural replication cycle, and can insert its own gene fragments into the germ cells as the host's cells divide, thereby infecting the whole group.In fact, almost all mammals on earth, including humans, have about 5% to 10% of their genes from retroviruses.

Humans insert two previously discovered gene fragments that can improve intelligence into a man-made retrovirus that has lost its pathogenicity, and then inject it into the human body in the form of injections. The virus multiplies in the human body in a month. It infects almost all body cells, and then activates specific dying gene fragments, allowing them to die out naturally in the human body.The whole process is safe and has no side effects. Basically, people who undergo genetic modification will not have any special feelings.

Of course, this kind of genetic modification is only the hardware of the human body, and it may improve the IQ of people to a certain extent, but this is not the legendary smart medicine, which can teach you all kinds of knowledge without a teacher.Human beings still need to learn and master all kinds of knowledge. This is like upgrading the hardware of a computer, but the corresponding software must also be upgraded, so that the performance of the entire computer can be maximized.

Genetic modification is a kind of change that moistens things silently. Few people can detect any difference in this change. This kind of modification cannot be seen in one generation or two. Obvious effect.It may have to wait for the accumulation of several generations to show its utility.But another project is different. For more than ten years, every human being has seen it approaching completion step by step, and they all look forward to its completion as soon as possible. It is the new generation of human mothership—the Solar System.

The construction of the Solar System has used all the engineering resources accumulated by mankind for decades. A super mothership the size of an asteroid and capable of carrying a population of nearly 2000 million will undergo its first trial voyage today.

Almost all human beings watched this grand event in the keel compartment of the former Kunlun fleet, and even the Insects who had good relations with humans sent a sightseeing group of high-ranking officials and scientists to join in the grand event.

Jiujiu brought his two children to the human spaceship, and was greeted by his old friends from the Insect Federation, the Mace Brigade.Human life finally returned to normal after humans recruited Insects as human babysitters.In addition to the engineering work in the first 10 years, starting from the 123rd year of the New Civilization Calendar, some positions that do not require long-term combat readiness can enter the hibernation cabin to hibernate. The purpose of their hibernation is to prolong their lifespan, because these experienced old people can lead The new generation of human beings who have grown up will carry out the work in this position.

In between, Jiujiu stared at the people whose appearance had hardly changed and sighed: "You have not changed at all, and I have already begun to enter old age, and even my children are older than when I first met you .”

Zhuo Fan said with a smile: "The current average life expectancy of human beings has reached about 400 years old, which is indeed a long-lived species compared to you Insects. In addition, we have gone through more than 30 years of hibernation, which is equivalent to only experiencing more than ten years of age." Over the years, it seems that there is no change, which is very normal."

(End of this chapter)