Chapter 460 Ultra-Micro Nanorobots
Land-based artillery can be made very large, which allows interstellar missiles based on magnetic propulsion technology to be deployed on planetary defense.
When the human fleet launched an orbital bombardment on the twelfth planet, these defense turrets that were like mountains began to roar. Countless electromagnetics were directly and violently accelerated with powerful power. They easily got rid of the planet's gravity and headed straight for the human fleet in the planet's orbit.
They are all equipped with guidance signals to identify metals as the target. After arriving in space, they change direction through the propellant built into the shells to achieve the purpose of accurately hitting the target. It can be understood as an electromagnetic railgun with guidance function.
At the same time as the railgun, there are also invisible beams of light attacking the human fleet. Yes, invisible. Since the twelfth planet is a common barren planet with no atmosphere on the surface of the planet, when laser weapons are used, there is no difference from space.
Their speed is faster and more accurate than that of land-based electromagnetic railguns. Because they are beams, human detection systems cannot detect them at all, and the distance from the surface of the planet to the orbit of the planet is very close, so that human warships in orbit do not know that the other party has opened fire until they find that their polarization shields are lit.
Perhaps the interstellar trading market also knows the existence of magnetic field shields, so in terms of defense, positron cannons are rarely seen.
Positron cannons, a powerful weapon of the first-level civilization, seem to have gradually withdrawn from the war stage due to the emergence of magnetic field shields, while laser energy weapons have been vigorously developed.
This is easy to understand. After all, as long as the laser energy weapon is large enough, it can still overload the polarization shield and collapse, but the magnetic field shield is different. It exists completely based on the Lorentz force effect. If it is turned on, any charged particles entering the magnetic field will be deflected to other directions, and the movement speed of charged particles is almost the same, so it is not a power problem at all.
Especially in the third-level civilization, after the magnetic field technology has been improved again due to true nanotechnology, the threat of anti-charged particle weapons such as positrons has been reduced to an almost negligible level.
Therefore, the main defense force of the twelfth planet is still the land-based super-large electromagnetic track runner and the land-based super-large laser energy cannon.
When the first round of resistance came, we could see light curtains lit up one after another in the orbit of the twelfth planet. The huge warships of mankind were only slightly better than mobile turtles in the face of laser energy weapons at such a close distance, but this turtle shell had a shield.
Even though the attack came quickly and accurately, it only presented a beautiful light curtain feast to this space.
Such a scene is really very similar to the spaceship shield resisting attacks in science fiction movies. When the laser energy column from the ground hits the light curtain, it will be blocked by the polarization shield. At that moment, the photons collided violently at the contact point, and then spread in all directions in the form of scattering.
So from other perspectives, it was as if we saw a bright light suddenly lit up in the space near the warship for no reason, like a big firework exploding in the dark night, which looked very beautiful.
The basic technology of the polarization shield is the low-temperature plasma shield, which is improved from the low-temperature plasma shield and can defend against energy weapons such as lasers and plasma.
But there is one thing that is different from science fiction movies. When the polarization shield here takes effect, it does not show a spherical light curtain commonly seen in movies and TV series, or a light curtain composed of regular hexagonal squares in games, but nothing can be seen.
At least in the visible light band, the polarization shield cannot be seen.
And at the moment of blocking the laser energy weapon, the phenomenon it shows is just: a bright light suddenly lights up in the empty space.
That's all.
So in the battle at the third-level civilization level, there is still no picture of lasers crisscrossing the starry sky like lightsabers, but only pieces of light that suddenly light up at a certain distance from the warship that cannot be detected or predicted.
This seems a bit monotonous, and it seems to lack the blood and passion of interstellar war, but this is the fact. Of course, from another perspective, such a battle is even more weird.
This is the case with the exchange of laser energy weapons. This thing moves along the light cone and there is no way to detect it at all.
Combined with the silent magnetic thrust, the orbital bombing war launched by human warships against the twelfth planet looked like a group of ghost-like warships coming to the planet's orbit, and then when they were adjusting their posture, patches of light appeared around the warships for no reason.
Apart from that, there was no sign of any exchange of fire.
Of course, after some time, this scene changed because the slower land-based super-large electromagnetic orbital missiles arrived.
Faced with these real shells, humans did not dare to underestimate them. When the detectors detected them, the close-in defense guns on the sea-class warships began to rotate and position, and then fired invisible energy beams, trying to destroy the shells with unknown warheads before they hit themselves.
If it was a hydrogen bomb warhead, humans would not be afraid of it. At most, it would leave a pit on the surface of the warship's armor. What humans feared was that the warheads of these missiles were equipped with ultra-micro nanorobots.
As the saying goes, what you fear will come to you.
Just when some warships really entered the orbital bombing state, a message fed back from the strong artificial intelligence attracted the attention of the command center.
A sea-class warship was hit by the enemy's intensive attack and broke through the close-in defense circle of the gun, causing an electromagnetic railgun to hit the warship's armor.
But the imagined violent explosion did not occur. In the picture sent back by the strong artificial intelligence, people saw that the shell did explode after hitting the warship's armor, but it was not a hydrogen bomb explosion, but a confused mist appeared like a smoke screen.
A mist with a metallic luster.
Silver mist!
Seeing such a scene, everyone on the Tianqin suddenly opened their eyes, and scenes of memories about silver mist immediately appeared in their minds.
Too similar, this appearance, isn't it the scene that humans saw when they first encountered the silver mist consciousness body.
But now it should be called an ultra-micro nanorobot.
Under the reflection of the battlefield light, the ultra-micro nanorobots that burst out were like a piece of silver mist, spreading all at once, and then sticking to the surface of the warship like a thorn in the flesh.
At this moment, they seemed to have turned into a pool of flowing metal liquid, quickly spreading to the surface of the warship.
At the same time, the strong artificial intelligence-controlled monitoring screen on the Tianqin was rapidly refreshing lines of alarm text.