The last human in the universe

Chapter 62 Defense Ability
Different from the gloom in the cluster of deep space civilization bases, Zhao Changxing, Wu Qinghong and others all showed smiles on their faces after receiving the report about the attack and looking at the photos taken by the spy satellite.

Everyone knows in their hearts that it is impossible to rely on this attack to achieve the result of completely destroying the cluster of deep space civilization bases.After all, the electromagnetic gun projectile is too small, and its main function is to destroy, not destroy.

But even if these psychological preparations have been made in advance, the results of this attack are still somewhat beyond people's expectations.

In the satellite pictures, people can clearly see the large fractures and large gaps in the base cluster, and even directly captured the pictures of gas leaks and internal fires inside the base.

You must know that even at this stage, the spy satellite can only get close to the distance of no less than [-] kilometers from the deep space star, and even this distance is quite dangerous.

However, at a distance of at least [-] kilometers, fire and gas leaks, as well as fractures and gaps, can be directly photographed. What does this mean?
This means that even from a macro perspective, the damage to those base clusters can be directly detected at this moment!

This attack destroyed at least half of the deep space civilization bases.The remaining half are mostly damaged, and they will inevitably require endless energy to repair in the future.

Looking at these pictures, even Zhao Changxing had lingering fears at the moment.

"Fortunately, fortunately, we humans first launched this form of attack on deep space civilization, not the other way around. Otherwise, our losses would have been heavy..."

At this moment, the various space bases of human civilization, such as the Tinder spacecraft, the drum base, the space-space interaction base, etc., did not consider what to do when they were attacked at the beginning of their design and construction.Their outer wall armor is generally only a few decimeters thick at most, and the materials are mainly considered for functions such as radiation protection and heat preservation.

It is no exaggeration to say that they have "thin skin and big stuffing".

This kind of thick armor is good enough to guard against the impact of small meteorite particles, interstellar dust, and space junk. It is absolutely unreasonable to face war weapons.

Zhao Changxing turned his head and looked at Wu Qinghong and other members of the War Committee.

"We can't always think about us attacking others, and ignore the possibility of others attacking us. Maybe one day, deep space civilization will use the same means to deal with us. If that happens, what should we do?"

The commissioners and officials were all smiles a moment ago, celebrating the great results of the attack.But at this moment, after a little thought, cold sweat immediately broke out on his face.

If, if this time, it is our human civilization that has been attacked to this extent, then, then...

It is certain that the Tinder spacecraft, the drum base, the aerospace interaction base, the space scientific research base, etc. will all be destroyed, which is absolutely unreasonable.Tens of thousands of infants and young children living in the Tinder spacecraft and the drum base will all die, and all ground facilities will also suffer heavy losses. Countless people will die, countless facilities will be destroyed, and human civilization will completely lose its corresponding capabilities. space transport capability.

And, and, for at least 30 years, humans will lose any ability to replenish the population.Because all space bases have been destroyed, there is absolutely no way to rebuild them in a short time.When the base is rebuilt, and then the embryos are cultivated to let them grow up, it will take 30 years to grow up to adulthood.

However, the most critical question is, if human civilization suffers such a blow, then... will the enemy give human civilization such a long time to rebuild itself?
In that case, just thinking about it makes people feel hopeless.

"The attack on deep space civilization cannot be relaxed." Zhao Changxing immediately made arrangements: "In the future, the hydrogen bomb attack must continue, and the attack on the cluster of projectiles must continue. The deep space civilization cannot be given a little time to breathe. Give them a chance to launch a counterattack against us. At the same time, the War Council must immediately study the method of dealing with the cluster attack of projectiles. This is our most important task at present, and we must not relax."

The tragedy of the deep space civilization has instead raised an early warning for human civilization, which is probably another harvest of this attack.

"Yes."

Faced with this problem, no one dares to neglect.

"We speculate that the inheritance of deep space civilization has broken generations, and our human civilization is not like this." Zhao Changxing sighed silently in his heart: "I should have considered the way of defending against the attack of projectile clusters as early as the beginning, but until It's only now that I think of it."

This so-called dating is not a dating of knowledge, because all the knowledge of human civilization is recorded in Xiaoxi's database.This chronology is a chronology of thought, a chronology of talents and systems.

If those war theorists, thinkers, strategists, etc. on the earth were still alive, they would have been able to speculate on the existence of this offensive method and make arrangements in advance as soon as they discovered the existence of the enemy.Unfortunately, they are all gone.Their knowledge was passed on, but their ideas were not.

"Fortunately, we still have time to grow slowly."

Under Zhao Changxing's order, while the large-scale construction continued within human civilization, an extensive discussion was also held.In the end, after summary analysis and refinement, a plan was placed in front of Zhao Changxing.

"With regard to the defense of bases on the surface of the planet, the first thing to do is to establish a deep space early warning system. The deep space early warning system can detect large targets such as interstellar missiles and combat spacecraft in advance, and guide the next interception action. There is nothing to say about this Yes, because we have been doing this all the time. Regarding the offensive methods such as projectile clusters that have the characteristics of large number, fast speed, small size and low quality, and do not have the possibility of interception, the only way we can deal with it is to strengthen our own defense , Resist the past.

It is not feasible, practical and economical to rely on the means of increasing one's own armor to complete the defense.We simply cannot imagine a situation where any building would have to be armored at least a meter thick.Then, there is only one way to improve the defense power, and that is, all the buildings are built underground, relying on the thick rock formations of the planet itself to complete the defense against high-speed projectiles.

According to calculations, in the face of a micro-projectile with a kinetic energy of 150 kilojoules, a rock formation composed of various elements and compounds, such as Thorin, dry ice, silicon oxide, etc., must have a thickness of at least 4.39 meters in order to complete a high-level projectile. defense.Under safe circumstances, the thickness of the rock layer should reach about 8 meters.Considering the ground-penetrating missiles and special projectiles specially designed to penetrate rock formations that may be faced in the future, we believe that the threat level can be reduced to a negligible level only when the thickness of the rock formation reaches about 20 meters. "

Zhao Changxing pondered for a while.

He knew very well that in the original earth era, the ground-penetrating missiles developed by people could even penetrate hard granite rock formations or reinforced concrete fortifications with a thickness of up to 100 meters.In the face of this kind of weapon, the thickness of 20 meters is obviously nothing.

But he knows that the 20-meter thickness mentioned by the committee members at the moment is mainly defended against miniature projectiles and small, fast ground-penetrating missiles.That kind of large-scale ground-penetrating missile can be classified as an interstellar missile. The defense against them is the planetary defense system, which is a deep-space monitoring radar and an air-to-air electromagnetic gun.Normally they have no chance of hitting the ground.

What makes him ponder is the cost of building artificial structures 20 meters underground.

Compared with the convenient and quick construction of factories, workshops, and bases on the ground, building buildings underground will undoubtedly require several times more time, effort and resources.

But he quickly made up his mind.

For safety, what price to pay is worth it.

"Issuing a human government order. From this moment on, all ground-based buildings under construction will be shut down and transferred underground. In the future, all land-based buildings, all built on the surface, will not be approved unless they are absolutely necessary after being approved by the human government." .All the ground buildings that have been built now, including Human City, Earth City, and Sun City, must start to make demolition plans. In the future, after enough underground cities are built, all these ground buildings will be demolished, and all building materials will be returned to the furnace reuse."

"Yes."

After finalizing the land-based matters, Zhao Changxing once again looked at Commissioner Wu Qinghong who made this report.

"What about the space base?"

A look of guilt appeared on Wu Qinghong's face.

"After our research, we confirmed that with our current technical means, it is basically impossible to complete the protection of the space base. At present, it is barely possible to do so, and the only way to do it is to build an emergency shelter at the core of the space base. area, and increasing the number of layers inside the space base are just two means. But... the purpose that these two means can achieve is only to ensure the safety of personnel in extreme cases, and it is impossible to keep the base."

Zhao Changxing was obviously not satisfied with this result.He not only wants to keep the people, but also the base.

Just kidding, which space base wasn't built with untold hardships, how can it be destroyed if it is destroyed?

But he also knew that Committee member Wu Qinghong must have sufficient evidence to support his judgment.Otherwise he wouldn't say it in front of himself.

After thinking for a while, an idea suddenly flashed in Zhao Changxing's mind.

"Is there really no way, or there is a way but we didn't think of it, we will know after we try it."

Zhao Changxing stood up, and his expression became serious again: "Order, launch a cluster attack on the deep space civilization again. Let the deep space civilization help us think about how to deal with this kind of attack. If they still can't figure it out, we will keep fighting." until they are all killed."

(End of this chapter)