"Three!"

"Two!"

"Four!"

"Six!"

"More than 10 ......"

Suddenly, different voices came and went.

"Hehe, it's wonderful. That, you say two. Tell me, why are there two? Zhang Yongcheng pointed to a person, who turned out to be Zhang Jianfeng.

"Report, conventional weapons and energy weapons!" Zhang Jianfeng's answer was very powerful.

"It's very general, it's not correct. You, tell me why there are three? ”

Another stood up, and it turned out to be a European exchange student, and the Chinese language turned out to be very bad: "Report, conventional material weapons, energy weapons, and unconventional weapons such as biochemical viruses, etc. ”

"Not enough! Such a perception is not conducive to your future development. Tell me, what are the four ......?"

One after another, there were all kinds of answers, and some even replied that scientific and technological weapons and non-scientific and technological weapons were scolded by Zhang Yongcheng for being a bloody sprinkler.

"It should be said that everything in this world can be explained by science! There is only one reason why it cannot be explained, and that is that science and technology are not developed enough! ”

After a slight pause, Zhang Yongcheng suddenly pointed at Qin Fei, "Qin Fei, you said that there are eight kinds of weapons, which ones do you say?" ”

For Qin Fei, Zhang Yongcheng still admires it very much.

"Yes! The eight weapons are divided into:

gunpowder weapons, including firearms, bombs in general, etc.;

electromagnetic rail-type weapons, which are weapons that combine energy and matter;

Laser;

Electromagnetic pulse EMP;

High Power Microwave HPMW (HPW);

ion beams;

Cold weapon.

Finally, there are unconventional weapons, mainly information warfare-related, biochemical viruses, etc., which are included in the list of unconventional weapons. ”

Zhang Yongcheng nodded with satisfaction, "Very good!" What you say is the most in line with military applications! Remember, scientific inventions are said to be applied and fed back to people themselves; But for a country, a nation, or even a civilization, the most important thing is military application!

In order not to confuse you, I myself will explain to you the reasons for this division.

The first is traditional gunpowder weapons. Don't think that just because you see gunpowder, you feel backward. In fact, today's high-tech synthetic nanopolymers, or plastic gunpowder, are actually powerful enough to penetrate spaceships. By exploding, the speed of the warhead can be increased to 10 times the speed of sound, or even more than 350 times the speed of sound.

Generally, the explosion speed of ordinary gunpowder (gas expansion after explosion) is about 9,000 meters per second, which is about 26 times the speed of sound; In fact, today's most powerful polymer gunpowder can increase this speed to an instantaneous top speed of 80,000 meters per second, which is almost equivalent to 235 times the speed of sound. It is theoretically possible to push the bullet speed above 150 times the speed of sound.

Of course, considering the practicality, cost and other reasons, everyone usually comes into contact with general gunpowder. But even ordinary gunpowder is capable of pushing the speed of a bullet to 3-5 times the speed of sound!

Let's make a comparison about the power of lasers and ordinary bullets, and we use the data to speak.

Suppose a mecha uses a special bullet with a mass of one kilogram, a speed of 5 times the speed of sound, and a bullet length of 20 centimeters. Then the energy carried by this bullet is 144,500 joules, and the bullet acts on a rigid object for about 0.00012 seconds. According to the physical formula, we can roughly calculate the impact force of the bullet on a rigid object as: 14166667 Newton, calculated at g≈10, it can be counted as 1416667kg, which is approximately similar to the instantaneous impact force of 1417 tons. Such an impact is enough to break bridges, enough to break the pillars of skyscrapers!

So let's use the same energy to calculate the laser. First of all, the laser is pure energy, it has no addition of matter, and can only cause damage by energy itself.

Assuming that the energy emitted by the laser is 144500 joules, the laser lethality intensity must reach 1022W/cm2, in order not to disperse, scatter and consume the laser, the laser cross-section is now about one square centimeter or more, and the large laser gun or laser cannon can generally reach 1200W/cm2 and the effective attack area is more than 10cm2. But even so, 144,500 joules can sustain the laser for more than ten seconds.

What does more than ten seconds mean? It means that people can shoot a shuttle bullet at you! In more than ten seconds, ordinary people can run a hundred meters! In real combat, no one will stay where you are and let you grill with a laser for ten seconds! For a flying mech, on the ground, ten seconds is enough to fly out of sight.

Of course, the above calculations can only be used to make a simple comparison. In fact, lasers also have many benefits, such as speed and distance, such as theoretically infinite superposition, and so on.

I give this example just to say, don't be superstitious about so-called lasers and so on. Since gunpowder weapons have not been eliminated on the battlefield, there is naturally a reason for this.

Do you have any questions? ”

"Report!" At this time, Qin Fei's old "acquaintance" Chen Weisong stood up, "Instructor, according to what you say, the laser gun doesn't have much effect at all!" ”

"I'm going to explain what you said." Zhang Yongcheng was a little dissatisfied, and after letting Xu Weisong sit down, he looked around before speaking again, "Let me tell you about the advantages and disadvantages of various weapons." The above is just an attempt to correct some of your mistakes.

Let's start with gunpowder weapons. This weapon is simple to use, very reliable, inexpensive, simple to maintain, some gunpowder weapons are even maintenance-free, and the gunpowder weapon is powerful enough. For hundreds of years, we have not given up on the development and design of gunpowder weapons.

The latest experimental model, the Green multi-barrel machine gun, can reach a rate of fire of 100,000 rounds per minute. Moreover, gunpowder weapons do not have to worry about damage such as electromagnetic pulse, do not have to worry about insufficient energy, and have extremely high reliability; Far more destructive than energy weapons at close range, there are many kinds of weapons, and there is still great potential to be tapped to this day. Coupled with the fact that real battles take place, most of them are at close range, so gunpowder weapons are still the best choice in this era.

The latest news has come out that some scientists are preparing to use the explosion of controlled nuclear fission as a new gunpowder, and the speed of the bullet is expected to reach the speed of the third universe easily, and even reach the speed of the third universe several times. At present, the laboratory has achieved considerable results.

Traditional guns have simple and reliable structure, easy maintenance and small size; Except that the sound is a bit loud at the time of the explosion, there are almost no drawbacks. And if there is a battle in space, it is even more impossible to have a sound.

Also, the impact and sound of gunpowder explosion are the best comfort for soldiers on the battlefield! If, one day, after a tense battle, you will find that you will prefer this wild weapon to a gentle laser or other energy weapon.

The second is the electromagnetic rail gun. This is one of the representative technologies of electromagnetic technology, and it is a perfect fusion between energy weapons and physical projectiles. Nowadays, there are equally many types of rail guns, and the caliber is flexible and compatible, as long as it is a warhead that can be magnetized, it can be fired, even a piece of scrap metal. But energy weapons have one drawback, and that is energy consumption! In addition, the system is complex, bulky and costly compared to gunpowder weapons; The structure of the rail cannon is even more complex than that of the laser.

The advantage of gunpowder weapons is that they do not need to consume energy to fire; Most energy weapons need to consume the energy of the mecha; Of course, an external energy module is a good solution.

In addition, energy weapons are easily destroyed by electromagnetic pulses; including the electromagnetic pulse itself; In short, magnetic rail weapons are an excellent complement to gunpowder weapons.

The third is lasers. Lasers are pure energy, with a fast rate of fire, ultra-long range, and strong directionality. In addition, the laser is a photon beam, so it is not affected by magnetic fields, etc., which means that the laser has good aim. But lasers have a big drawback, that is, there is no way to turn.

And the laser is easy to be obstructed by dust, atmosphere, etc.; In particular, it is important to note that the defense technology of the laser is very simple, and the prism coating can defend against the laser and even return the laser to the original path. Therefore, you must pay attention when using laser weapons, don't hit yourself!

In addition, in places with a lot of wind and sand, such as sandstorms, deserts, fog, and sea surfaces, the laser effect is limited. Basically, where the eyes don't look clear, the laser effect is difficult to guarantee.

Fourth, let's talk about the electromagnetic pulse. Most people think that as long as the electromagnetic pulse is turned on, the drone will drop a piece; All electronics-related technologies, even those that use electricity or magnetism, are hard to escape. Even a powerful electromagnetic pulse bomb can cover an effective area of more than five million square kilometers. But I would like to correct you one point today, that is, the coverage of the electromagnetic pulse is too wide, and it is not easy to perfect the shape and orientation, and it is easy to hurt your own people. Moreover, because the electromagnetic pulse spreads too fast, the effect of long-range attacks is not necessarily good.

In addition, magnetic fields, dust, water mist, and water-containing substances can have a serious impact on the electromagnetic pulse.

Fifth, let's talk about high-power microwaves; Many people tend to ignore high-power microwaves because of electromagnetic pulses. In fact, high-power microwave also uses electromagnetic radiation as an effective weapon technology, and under the same conditions, its function is weaker than that of electromagnetic pulse; However, the directivity is good, especially the penetration is strong, and it can be regarded as a "weakened perfect version" of the electromagnetic pulse.

Nowadays, both electromagnetic pulse and high-power microwave can be directed emission through specific electromagnetic technology, but high-attack microwave performance is better.

Sixth, let's talk about ion beams. Ion beam is a thing that is bad in film and television, but unfortunately we don't have a mature, portable ion beam technology yet. Existing particle generators are the kind that resemble particle colliders, large, bulky, not up to military standards, and not very usable. So we can only hope for the time being.

Seventh, let's talk about unconventional weapons. The so-called unconventional weapons generally refer to those weapons with many restrictions, which are not technical limitations but may be moral limitations. For example, it is still very difficult for electronic viruses to spread in other civilizations; Biochemical viruses, for example, have moral problems.

Unconventional weapons are generally not used, but every time they are used, it is not a trivial matter; Normally, it shouldn't have much to do with all of us.

Finally, I specifically talked about cold weapons. Some people may say that it is the era of long-range attacks, what are cold weapons used for?

But you'd be wrong. If it's a mech, then cold weapons are your last resort! But again, if you use cold weapons well, it may be your most powerful means!

Slashing a building, slashing a bridge, and slashing a spaceship with a slash are not exaggerations in the movie, but mechs really have such abilities! The cost of many mecha cold weapons is as high as one-tenth or even half of the value of the mecha, not without reason.

With cold weapons, you never have to worry about running out of ammo, and the consumption of mecha energy is also the lowest. In fact, a lot of the fights are face-to-face, and you'll meet them later.

Hey hey ......"

In the end, Zhang Yongcheng smiled like a devil!