Homo sapiens.

The metal content of these four medium-sized asteroids is relatively high, and they have become the priority mining targets of the Stonefish Star Fortress.

"No problem, arrange it right away." Nobumi Jintian, who is in charge of the remote mining work, nodded.

Half an hour later, a 1-ton mining spacecraft flew towards the target at a speed of 5000 kilometers per second.

And Zhang Yu began to prepare for the manufacture of weapons and equipment.

"Ebony Spring!"

"Captain, what's the matter?" Wu Muquan, who was in charge of combat preparations, floated over.

Zhang Yu didn't talk nonsense: "Which weapon and equipment plan of the Space Defense Department are you going to use?"

Wumuquan, who had been prepared for a long time, replied calmly: "Plan 53, this is the best arrangement at present based on the resources of our fortress."

"Okay! You get ready! I always feel a little uneasy without a weapon in place."

"The captain also got the lack of firepower phobia?"

Zhang Yu shrugged: "There is no way. The nearest border fort is 723 billion kilometers away, and the surrounding area is empty. We haven't covered up here yet. Who knows if enemies will suddenly appear."

This is also one of the troubles of the Dark Star Project and the Interstellar Fortress Project.

In the interstellar space, all first-level civilizations with relatively high technology can more or less detect the existence of dark stars.

Once the opponent's spacecraft passes by the vicinity of the solar system, it will definitely give priority to mining the resources of the dark star as a supply.

As for why not directly enter the planetary system to collect matter, the reason is naturally for safety considerations.

Aliens are certainly not that stupid. They usually do not directly enter a planetary system without finding out the internal information of a strange planetary system.

Chapter 664 Fortress ([-])

The interstellar boundary fortress similar to the stone fish star fortress is the forward position of Homo sapiens.

It is possible to encounter unexpected guests from afar at any time.

That's why Zhang Yu had to improve the weapons and equipment of the fortress as soon as possible. After all, the Stone Fish Star Fortress is a military facility, and without weapons and equipment, it would not be able to exert its meaning of existence.

After Wumuquan received Zhang Yu's order, he immediately mobilized some resources to start producing weapons and equipment.

The first thing to be produced is the wave-absorbing space mine. This thing can absorb most of the electromagnetic waves and prevent the mine from being detected by electromagnetic wave radar. Its core is equipped with a 30-ton equivalent neutron bomb.

The reason why neutron bombs are used instead of pure hydrogen bombs is naturally that the lethality of hydrogen bombs in a vacuum environment is limited, and it is not as useful as dense high-energy neutron flow.

At least things like neutrons are not something that ordinary first-level civilizations can resist, especially dense high-energy neutrons.

Even if it can't directly kill the other party, it can seriously interfere with the other party's communication and detection system, and damage some peripheral equipment.

Of course, Wumuquan didn't expect space mines to be able to deal with all enemies.

If the opponent has technologies similar to magnetic field detection, gravitational wave detection, and neutrino detection, then space mines will basically have no effect.

To a certain extent, after entering the first-level civilization, due to the development of detection technology and the limitation of the speed of light bottleneck, the war between the first-level civilizations will return to "queue to shoot", "naval artillery bombardment", " "Close-to-hand combat" mode.

It is very difficult for a first-level civilization to attack another first-level civilization.

For example, the Homo sapiens company plans to sneak attack on the homeland of the six-claw civilization, because the Homo sapiens company has obvious advantages in many technologies.

As long as the six-claw civilization masters gravitational wave detection technology or neutrino detection technology, the expedition fleet of Homo sapiens may be discovered within a radius of 0.5 to 1 light-year from the six-claw giant star.

Of course, it cannot be ruled out that the six-claw civilization was negligent and did not guard against the invasion of external forces; or simply did not have gravitational wave and neutrino detection technology.

Even without gravitational wave and neutrino detection technology, relying on pure electromagnetic wave detection technology, the early warning radius can actually reach about 0.01 light-years.

It's only 0.01 light-years away, which is too close for a first-level civilization, and it's basically the rhythm of being output.

There is no way, in the first-level civilization stage, all first-level civilizations are actually very embarrassing.

The speed of the spacecraft cannot exceed the speed of light, the detection method is at most the speed of light, and the attack method is also severely restricted.

Similar to Homo sapiens, there are very few first-level civilizations with long-distance and delay-free communication technology.

The omnic civilization that Li Qingye analyzed at the beginning destroyed 39 first-level civilizations and swallowed the technology of these civilizations, but including the omnic civilization, they did not master the long-distance delay-free communication technology.

It can be seen that the long-distance and delay-free communication technology owned by Homo sapiens is rare in the first-level civilization.

Sailing speed, communication speed, detection speed, and attack speed are all restricted by the speed of light.

Once there is a war, only the tactics of queuing up and shooting in the classical era, or the tactics of hand-to-hand combat can only be adopted.

As for launching missiles, on the interstellar battlefield, it is actually equivalent to two people shooting each other with pistols.

After all, no matter how fast the missile is, can it be faster than electromagnetic waves, gravitational waves, neutrinos and magnetic fields?

And the first-level civilization more or less masters laser weapons, even if they don't have mature laser weapons, they can still use nuclear explosion interception technology.

This is the helplessness of Star Wars.

When the scale of both sides is stretched to the level of astronomical units, ambushes, encirclement, traps and the like are temporarily difficult to work.

As for the aliens in European and American blockbusters, those are all brain-dead aliens, which do not conform to the behavioral logic of normal aliens at all.

Aliens who can travel across the galaxy to the solar system, if they really want to deal with human civilization, they will not land on the earth at all, wouldn't it be good to launch attacks directly in outer space?

what?

You said that aliens can't bear to cooperate with living planets?For the convenience of colonization in the future, the landing method is adopted?

It's a joke, the ecological environment that aliens need is different from that of human beings. Why do you think that aliens will protect the ecological environment of the earth?

For example, the Homo sapiens expedition fleet planning to attack the six-claw superstar, they do not have any plans for landing operations, and their first-stage tactics are to wash the ground and burn glass.

To completely exterminate the indigenous civilizations first, and then carry out transformations, transforming those conquered planets into an environment suitable for the survival of their own races is the main means for alien civilizations to enter other planetary systems.

This is actually similar to the method used by the Europeans to colonize the world.

The Homo sapiens company will not be so stupid as to use the method of landing on the planet to attack a civilization.

Unless the opponent's civilization level is lower than the first level of civilization, there is no possibility of landing combat.

Due to the various restrictions of interstellar warfare, the weapons and equipment of the Stone Fish Star Fortress also need to adapt to these restrictions.

For example, the recently developed super magnetic field shield can resist most non-laser weapons.

Even a nuclear explosion at a very close distance can weaken the lethality of a nuclear explosion.

However, the current production capacity of super magnetic field generators is very small.

So far only two experimental warships are equipped.

The reason why the production capacity is so small is that the core raw material of the super magnetic field generator is the double neutron material.

That's right, the core raw material of the super magnetic field generator is the double neutron material. The magnetic field generator made of this thing can generate a magnetic field strength 16 times that of the previous conventional superconducting coil.

This thing can generate a magnetic field on the level of a neutron star.

With such a terrifying magnetic field strength, even the gravitational field will be distorted to a certain extent.

Once the super magnetic field shield is turned on, weapons with quality at this stage cannot penetrate the super magnetic field shield.

The super magnetic field generated by the double-neutron material can not only be used as a shield, but also can be used as the magnetic field acceleration of the plasma propeller to further increase the ejection speed of the plasma.

Of course, the plasma thruster can be transformed into a high-energy particle cannon after modification, and the principles are the same.

Double-neutron materials are indeed a good thing.

However, the production capacity is pitifully low.

At present, the 8 double-neutron manufacturing plants of Homo sapiens can only produce 3.4-3.6 kg of double-neutron materials per year.

However, to produce a set of small super magnetic field generators requires at least 0.8 kg of double neutron materials, plus the needs of other scientific research institutions, there is no way to equip Stone Fish Star Fortress with such good things.

Chapter 665 Bigger and Stronger

Mars.

The twin neutron fabrication plant for the Halo system.

Dr. Yuri is visiting the factory with Li Qingye's synchronous robot.

"Mr. Chairman, these are the dual-neutron materials that have just been produced..."

In the magnetic field confinement storage in front of you, you can see the situation inside through the transparent window, but even so, it is actually difficult to observe the double neutron material in it.

This is because dineutron materials are very dense.

The density of dineutron materials without outer electrons is astonishingly high.

In the magnetic field confinement storage in front of you, 83 grams of double neutron materials are stored, but these double neutron materials cannot be observed with the naked eye.

Li Qingye can only see the polymer of double neutron materials through the particle microscope on one side.

"Dr. Yuri, how much can the double neutron production capacity of the Mars star ring system reach?"

Hearing this, Sun Li, the head of the factory on Dr. Yuri's side, quickly replied: "Mr. Chairman, currently our factory can only produce about 42-46 grams per month."

A trace of helplessness flashed in Li Qingye's eyes: "This production capacity is still too small. Dual-neutron materials are the foundation of the company's next industrial revolution. We must find ways to increase production capacity."

Dr. Uri is also very aware of the importance of double neutron materials, after all, this thing has a wide range of uses.

Even if it is only used as a coating for the outer shell of a spacecraft, the spacecraft can block high-energy particles and cosmic rays during space travel, especially the hard-to-defend high-energy neutrons and gamma rays.

Only a thin layer of double neutron material needs to be plated on the outer shell of the spacecraft, and its protective effect is equivalent to that of a composite lead plate and a special tungsten alloy with a thickness of several hundred meters.

And the weight difference between the two is very large.

Although the density of the double-neutron material is terrible, the amount needed is much less than that of composite lead plates and tungsten alloys with similar effects.

What's more, double neutron materials can excite a super magnetic field, which is difficult for other materials to do.

All in all, double neutron materials are good things, but the only trouble is that the production capacity is too little.

Dr. Yuri thought for a while: "Mr. Chairman, we are trying to improve the technology, but there are various problems in the current technology improvement roads, among which the improvement plan that is most likely to achieve a rapid increase in the production capacity of dual-neutron materials, It’s about building a bigger particle collider.”

"An even bigger particle collider?" Li Qingye's face was uncertain.

You must know that the star ring system around the equator of Mars is already one of the best super-large facilities in the solar system.

Li Qingye fell into deep thought.

If you want to build a larger particle collider, you can only rely on the existing stars, and you cannot choose to build a super large particle collider in the empty void.

The reason why it cannot be built in the void is very simple, for safety.

Why would it be unsafe.

This is not a problem with the very large particle collider itself, but is easily observed by other civilizations.

Space cities like Zhurong City have a radius of only a dozen to twenty kilometers, plus they are close to other natural planets or asteroids, and alien civilizations in other planetary systems are difficult to observe anomalies.

This is why Homo sapiens dares to modify planets, dwarf planets, and asteroids unscrupulously, because these stars are all naturally occurring, and there is no way to observe small changes in other distant planetary systems.

But in the void inside the solar system, build a particle collider with a radius larger than that of Mars. In the planetary systems around the solar system, you only need to provide the transit method, and you can see the outline of this super-large particle collider.

As long as the alien civilization has no brains, as soon as they see the ring structure of the super large particle collider, they can definitely guess that there is a civilization in the solar system.

It is not a wise move to expose yourself to the sight of other civilizations.

Therefore, the option of building a very large particle collider in the void of the inner solar system is ruled out.

As for being in the void of the outer solar system, it is also not a good choice because of insufficient resources.

Immediately afterwards, Li Qingye ruled out the option of doing things in the sun itself. After all, the radius of the sun is too large, and the danger is very high, plus the resource consumption is too large, this is also not a good choice.

After all, a Dyson sphere or a Dyson ring is a star-level giant structure, not only easy to expose itself, but also requires an astronomical amount of resources.

The inner void of the solar system, the outer void of the solar system, and the sun itself are excluded, and then all the earth-like planets can be excluded.

There are only four gaseous planets left in the solar system, Jupiter, Saturn, Uranus, and Neptune.

In Li Qingye's mind, he quickly evaluated the indicators of the four gas planets, Jupiter, Saturn, Uranus, and Neptune.

From the perspective of safety, Jupiter can basically be ruled out. On the one hand, because Jupiter's gravity is too large, and it is located outside the asteroid belt, it is very easy to attract the "patronage" of asteroids.

Homo sapiens has a deep understanding of this point over the years.

The Jupiter colonization branch of the Homo sapiens company encounters asteroids entering the Jupiter system every year.

On the other hand, this is that Jupiter's equator is too long, with a length of 45 kilometers, and it is too troublesome to build.

Saturn, which is also the same as Jupiter, was also excluded by Li Qingye.

Now only Uranus and Neptune remain.