Voyage of the Stars

At the same time as the main gun fired, dozens of laser weapons located at the bottom and sides of the Callisto ship also roared. A thick beam of light plus dozens to small beams of light tore through the darkness, roaring towards the silver mist three million kilometers away.

"The positron cannon has a cooldown countdown of thirty seconds and is ready for the next round of shooting."

The magnetic confinement coil and other components of the positron cannon are composed of superconducting materials, and there is no resistance heating problem. However, the various gold and platinum sheets that generate positrons and the various facilities for separating positrons and negative electrons cannot be completely superconducting, so they cannot be used completely. After the main gun of the fourth ship fired a shot, there was still a certain cooling time.

Laser weapons are high-energy photon beams.

Obviously, the speed of laser weapons is the speed of light. As long as there is no super-light detection technology, it will be hit when it is seen.

The positron cannon is a beam of positrons. Because electrons have mass, their speed is slightly lower than the speed of light, but on a scale of three million kilometers, this difference is completely negligible.

Therefore, although Silver Mist is a creation of a third-level civilization, it is impossible for it to detect the incoming of such weapons in advance. In fact, not only Silver Mist, but even humans only know "I fired". As for whether it hits or misses, you have to wait twenty seconds to see it.

Real laser weapons are actually invisible from the perspective of onlookers. They do not see radiating beams of light like those filmed in movies.

If there is such a God's perspective, you can probably only see the laser excitation state of laser weapons and positron cannons before firing, but after such cannons are fired, you will not see a bright beam of light like lightning.

Of course, after the laser weapon is fired, due to the existence of some gas and dust in the universe, some of the photons in the emitted light column will hit the gas and dust composed of hydrogen, and then these photons will be diffusely reflected, so watch The researcher can still distinguish the direction of the laser beam from the rare diffusely reflected photons.

To put it simply, you will see a blurry and hazy light pillar.

The positron cannon is another story. Because it emits positrons, it is impossible for the human eye to see the real light beam. Not only the human eye, but also the detection instrument cannot see it directly.

The reason is that what the human eye "sees" is actually the result of sensing photons. Although various detectors can detect electromagnetic waves in various bands, positrons are obviously not directly observable by detectors.

Therefore, if the positron cannon is fired in a vacuum without gas and dust, even the shooter will probably not be able to see anything.

However, true vacuum environments are rare in the universe. Although most of the universe is called a vacuum, there are still some rare hydrogen elements permeating it.

The observed light beam of the positron cannon was also based on these gas and dust. When a small number of positrons encountered these gas and dust, they had an annihilation reaction with the electrons in them, and then released some photons. The detector was based on these random The flying photons detect the flight trajectory of the positron cannon.

Therefore, in fact, everyone in the bridge of the Hope, including Yue Yuan, who looked at the big screen, saw only a dim light flashing away.

Unless it's computer-rendered, this is how laser weapons fire when seen on the big screen.

Because of this, laser weapons and positron cannons will suffer a certain degree of attenuation before hitting the target. This is a process loss of the environment and cannot be avoided.

If it is in the atmosphere, the loss will be even greater.

From this point of view, in fact, the positron cannon is not suitable for use in the atmospheric environment, because the electrons in the molecules in the air are the first targets that the positron cannon comes into contact with. Before hitting the real target, one must first All electrons in the air on the road must be neutralized.

Well, speaking of which, as long as the power is high enough, it's possible. Also, if you use a positron cannon in the atmosphere, you will really see a bright light hitting the target at a high speed.

In fact, no one on the bridge of the Hope was surprised to see this picture that was completely different from what they usually imagined, because they all had common sense in physics.

So after the main gun fired, Yue Yuan, the science officer and others focused on the timer on the screen that started counting from the moment the gun was fired.

5 seconds, 9 seconds, 10 seconds,

11 seconds, 13 seconds, 14 seconds, 16 seconds, 18 seconds, 19 seconds.

The timer had just jumped to 20 seconds, and the picture that had been refreshing on the screen changed instantly, and a light suddenly appeared on the quiet screen.

It looks like a flashlight shining into dense fog, but it is also different. There are many dense flashes where the light beam contacts the target.

The reason is that the positron comes into contact with the target and undergoes an annihilation reaction with the target electron, which triggers a series of explosive reactions.

Of course, in space, this type of explosion cannot be an explosion in the traditional sense, because the mechanism is that high-energy photons generated by the annihilation of positrons and negative electrons destroy the structure of the target.

Then, less than a second later, people saw a large hole in the silver mist on the right side under the radiating light.

This is what the Hope optical telescope sees.

In another sub-screen, due to the different types of detectors, the displayed contents are different. Some only display one quadrant wave, while others display many light spots.

After seeing these pictures, the fire controllers, signal experts, correspondents and other staff on the Hope immediately used computers to summarize and analyze the information on the pictures.

Based on this feedback information, they need to determine the hit or miss, the target's next deviation direction, time difference and other factors, and then quickly adjust the direction of the Hope to allow the Callisto ship's main gun to aim at the next possible target. s position.

"The positron cannon hit the target and penetrated the target! The visual damage amount is 5% of the total target volume. It is impossible to determine where its core is and whether it has caused fatal injuries."

"Blue laser weapon No. 14 missed the target!"

"Blue laser weapon No. 6 missed the target!"

"Blue laser weapon No. 8 missed the target!"

".miss the target"

"The blue laser weapon No. 7 hit the target, the hit time was 1.78 seconds, and it did not cause obvious damage."

After a bunch of misses, another hit message finally appeared on the fire control combat system, but the result was that the opponent was unscathed.

Laser weapons are different from other types of weapons. After hitting the target, the hit time needs to accumulate to a certain extent before it can cause high-temperature burning damage to the target.

It's not like in the movies where a huge explosion can occur with just one shot of the laser.

This is determined by the principle of laser weapons.

Of course, it is also related to the power of the laser weapon. If the technology is powerful enough and the laser weapon produced is a high-energy gamma ray, the damage will definitely be much greater, and it is no problem to achieve the goal of melting the target when it hits it.

However, mankind has just entered the first level of civilization. At that time, it had concentrated its scientific research efforts on positron cannons, and high-energy gamma ray laser weapons had not yet had time to develop.

Please bring me some tickets, if you have any