The last human in the universe

Chapter 173 Three Projects
Back then, there was a very famous super hydropower station in the earth era. In order to build it, people once cut off a world-leading river and formed a vast lake of more than [-] square kilometers.

The amount of water accumulated in this lake is about 400 billion cubic meters, that is, the total mass of water storage is about 400 billion tons.

And this number is only one-9352th of the mass that people need to take away from the Lakai 250 galaxy at this moment.

That is to say, for this interstellar voyage, people need to transport all the water in about 250 huge reservoirs from one star system to another star system 12.2 light-years away.

Even for the current human civilization, this is an extremely huge project.It is precisely because of this, and precisely because it has known its size for a long time, that the human civilized government has specially reserved a century for this project.

It will take a century of hard work by a population of more than [-] million people to complete this project.

There are three main points in this project.The first point is naturally the storage of antimatter energy.

In space, there is nothing more important than energy.In a sense, it is even more important than the various types of materials that may number in the millions.

The reason is simple. Materials can be reused. As long as there is enough energy, most materials can be recycled continuously.For example, human breathing turns oxygen into carbon dioxide, and at the cost of a certain amount of energy, carbon dioxide can also be reduced back into oxygen and carbon.

Facing a mass of ten trillion tons, a rough estimate would require at least six hundred million tons of antimatter energy.Allowing for redundancy and doubling it, it would be about 14 billion tons.

If so much antimatter energy completely reacts with the corresponding mass of positive matter, the energy released will be equivalent to the energy released by a huge star like the sun in 700 seconds, which is equivalent to that of the earth in 5 seconds. The total amount of solar energy received over a period of approximately [-] years.

5 years ago, human civilization was still drinking blood.From that moment until now, all the energy received by the earth from the sun, driving wind, rain, thunder and lightning, driving all things to grow, driving rivers to rush, and all the energy to melt ice and snow during these 5 years is only enough for this voyage. use.

In order to prepare up to 14 billion tons of antimatter, about 117 billion tons of hydrogen are required to be completely converted into energy, and a full 1.67 trillion tons of fusion fuel is required to participate in fusion.

This requires the participation of many fusion power plants with high automation capabilities at the same time, and it can be completed in just 100 years.

Therefore, the construction force saved by canceling many other projects, a considerable part of it was invested in the tasks of fusion power station and antimatter preparation factory.

The second key point is the manufacture of interstellar spacecraft.

It is much simpler and easier to build a simple passenger and cargo transport spaceship than a warship.After all, people don't need to consider a series of things such as mobility and weapon systems.But this time the spacecraft needed to be built was too large.

A spaceship the size of Yuan Voyage has never been built.

Fortunately, in the process of repairing and maintaining the Yuanhang spacecraft, people have accumulated a lot of data, and they are still certain about building such a large spacecraft that is capable of interstellar navigation.

This is not to say that the technology of human civilization at this moment is more advanced than that of the original deep space civilization - you must know that the original deep space civilization lost almost 99% of the mass of the fleet for an interstellar voyage, and only the last bit survived Those who survived reached the solar system.

On the whole, the current level of science and technology of human civilization is still inferior to deep space civilization in terms of comprehensiveness.

But the most critical point is that human civilization has solved one of the biggest pain points in interstellar travel, that is, the large-scale preparation of antimatter energy.Solving this problem will almost solve up to 99% of the problems in interstellar navigation.

Human civilization can do what deep space civilization cannot do.

At this moment, the comprehensive performance of the interstellar spacecraft built by people can probably reach about 60% of that of the Yuanhang spacecraft.

It's just that the amount of work is too huge.But there is no way, just gather the strength of the entire civilization and pile up manpower and material resources.

The third key point is the reserve of materials.

Water, salt, sugar, rice, wheat, gold, silver, copper, iron, various minerals, oxygen, carbon, etc., etc., the list includes at least millions of different materials.

Compared with the first two tasks, this task is actually relatively easy.The most important thing is that human civilization has already had the experience of an interstellar voyage at this moment, and most of them know what materials to carry during the voyage, and what proportion of a certain type of materials should be carried.

It's just more complicated and troublesome.

There is also no clever way to solve this problem, and we can only rely on manpower and material resources to pile up.

Under these three key points and three projects, the manpower and material resources saved by the previous civilization contraction were all divided up before they could be repaired.

Not only that, the human and material resources required for these three projects have seriously eroded the resource share of the remaining projects.The most obvious example is that the market economy suffered another devastating blow at this stage. The entertainment industry, service industry, clothing, home textiles, tourism and other industries were almost wiped out. All practitioners were guided to participate in these three industries. In this huge project, the whole society once again entered the era of planned economy.

In addition, in the scientific community, which is also of great strategic importance to civilization, except for some of the top scientists who can still obtain some resources for cutting-edge research, the scientific research activities of other scholars are almost all forced to stop.

The reason is simple, the human government can no longer provide enough resources to supply them.

The life of every scholar is precious.In order to cultivate them, civilization has paid huge resources and costs.However, it is a great waste to waste their lives in work that has no technical content.

Therefore, based on the principle of voluntariness, many scientific researchers chose to temporarily freeze their lives in order to wait for the situation of civilization to improve again.

This seems to have the nature of "becoming a deserter". While the rest of the people are struggling hard, they are lying in the hibernation cabin and sleeping lazily. In essence, these scientific researchers are indeed evading However, Zhao Changxing insisted on making this decision despite all the arguments.

Zhao Changxing is a pragmatist.He believes that doing this is beneficial to civilization, and in fact it is beneficial. Then, under the premise that it does not involve the value of civilization and the bottom line of morality, he will definitely do it, and he will not bother about "the value of life" , "high or low value" and so on, there is no right answer to the debate.

At the same time, large-scale military exercises have also been completely stopped, and only small-scale military exercises and training aimed at "maintaining combat status" continue.A part of the backbone of the military was also allowed to enter hibernation and temporarily freeze their lives.Most of the remaining soldiers were all thrown into this "war".

Yes, these three projects are a war for human civilization.Some tasks that require a high degree of organization and the participation of fast mobile forces are just suitable for soldiers to complete.

For soldiers, this also has the effect similar to military exercises, and it will not cause all the skills learned through hard training in the past to be forgotten.

Under such circumstances, the Lakai 9352 galaxy once again entered a busy state.

One after another radio waves are flying in the vast space, spaceships are shuttled back and forth, huge amounts of materials like mountains and seas, accompanied by the injection of electromagnetic rail guns, or shuttle between land and space, or between different planets shuttle.

Under the "attack" of more than 1 million people leading almost tens of trillions of robots and automated machinery, even the landforms of these three planets have been changed.

The waste produced by hundreds of thousands of giant factories filled the basins and canyons, and the mountain peaks rich in minerals that people urgently needed were directly flattened. The originally roughly flat plains were full of ravines and depressions. The transfer even had an impact on the planet's crust, which indirectly led to frequent volcanoes and earthquakes.

For these three planets, this can almost be called an earth-shaking change.But under people's intentional control, the galaxy still maintains peace when observed from outside the galaxy.

At least at the current level of technology and related scientific predictions, people cannot find any way to detect signs of such major changes taking place here at a distance of several light-years.

During this century, many people reached the limit of their lifespan and eventually died.A small number of newborns are born naturally and come to this world.

After adding and subtracting, the population was finally reduced to about [-] million people as originally expected.

During this century, interstellar spaceships as large as Yuanvoyant spaceships appeared before people's eyes one after another.Under the ejection of the electromagnetic rail gun, the huge amount of materials with a mass of trillion tons gradually gathered in these spaceships.

One space city after another originally had its own style, carried people's different lengths of life, and kept people's many memories of space cities, which were abandoned and eventually lost all warmth and became as cold as interstellar meteorites.One after another, the huge factories that used to be roaring day and night, with the flow of people like weaving, gradually stopped, returning the cold and dead silence to this world.

Human civilization is like passing by, only staying for a short while in this galaxy's life span of at least [-] billion years, and now it's time to leave.

(End of this chapter)