Chen Dongshan and Zhang Lianying tested the grenade on the day the weather was just unstable, the sky was clear for a while, and the clouds were overcast for a while, so even if the grenade explosion was loud, the villagers might have heard it, and they would not regard the explosion as the sound of a grenade, but only the sound of thunder!

If they were suspicious of the explosion that day, when Zhao Zhongyao visited the village just now, the villager uncle would definitely ask Zhao Zhongyao what the explosion was that day.

But when Zhao Zhongyao arrived in the village just now, the villager uncle didn't ask Zhao Zhongyao about the huge explosion in the valley that day, which can only show that the villagers didn't care about the explosion that day.

But no matter what, Zhao Zhongyao can't take it lightly. Only once in a while, the villagers would mistake the sound for thunder. But if it reappears again, it is still on a sunny day, then the villagers may be suspicious.

"No, the villagers must not be allowed to suspect that our factory is a military factory, in that case, it will be troublesome. If they had known that our base was a military factory, they would have taken the risk of stealing guns! This kind of thing is not a joke, it is a dangerous thing for the base and the villagers. ”

Zhao Zhongyao knew that now if he wanted to kill the wild boar, he had to develop his new grenade. But if the new grenade is tested, the huge explosion may be heard by the villagers, and they will suspect the Jianghai Machinery Factory.

"No, we must not let the villagers know that our Jianghai Machinery Factory is a military factory. Zhao Zhongyao knows that for a military industrial base, security and confidentiality work are the top priorities, and this is by no means a joke.

"But what am I going to do? How can I kill the wild boar without making the villagers suspicious!"

Zhao Zhongyao sat at his desk, looking at the M68 grenade he had designed before, and was thinking about it again!

"Hey, if I can reduce the sound of the grenade when it explodes, won't I be able to keep the villagers from hearing it!"

When Zhao Zhongyao was discussing the development of the grenade with Chen Dongshan and Zhang Lianying, he said that the grenade designed by the two of them was "thunder and rain." And the grenade of his own design is 'thunder and rain'.

But at that time, Zhao Zhongyao just said this, and only accused Chen Dongshan and Zhang Lianying of not designing good grenades.

At that time, Zhao Zhongyao really didn't think about how to reduce the sound of the grenade exploding. Now I know that I really need to design such a 'high-level grenade'!

"But how can we achieve 'thunder and rain'!" Zhao Zhongyao took out his design from the drawer and looked at it carefully.

"Cut down, cut down, silencer!"

Zhao Zhongyao went from the idea of reducing his voice to the muffler installed on the gun.

In some spy war films, the pistols used by ordinary agents have special silencers on them, which is to ensure that agents minimize the possibility of themselves being exposed when carrying out assassination activities.

As a military scientist who has been reborn in this relatively backward parallel space from the 21st century, Zhao Zhongyao knows very well what the working principle of the silencer on the gun is, and how the silencer makes the pistol make a very small sound when firing.

"Damn, can I make a grenade silencer? ”

Zhao Zhongyao thought of the silencer of the grenade from the silencer of the gun. It's just that in the world before his death, although there were silencers for guns for a long time, there were never any silencers for grenades. No one has ever developed a grenade silencer.

"Well, that's it, I designed a grenade silencer. Then install it on the new M68 grenade I want to develop, so that the grenade does not produce a lot of sound when it explodes. ”

For the whimsical idea of this grenade silencer, Zhao Zhongyao himself felt that he was really 'smart'. He can come up with this kind of bypass idea.

"Silencer! What a silencer. ”

Although Zhao Zhongyao had heard of the silencer for a long time and knew how the silencer worked, when he wanted to really design a grenade silencer, he had to first search for what kind of silencer he remembered in his memory.

The silencer is actually a very simple military product, which is a metal pipe and then some small holes are drilled in it.

Don't look at the simplicity of this silencer, but its function is not simple. Able to reduce the loud sound of a gun firing to the point where it can only be heard within twenty meters. It's a great invention.

The working principle of a silencer is actually quite simple. It is to transform the sound of the bullet out of the muzzle into a sound of air flowing through a small metal hole.

Because the loud sound of the gun is fired because the bullet is pushed out of the chamber at a very high speed by the high-temperature gas, the high-temperature and high-pressure gas in the barrel is suddenly depressurized at the moment of the chamber.

The sound is like the wooden stopper we put on some red wine bottles. When we jerk the cork off the bottle, do we also hear a 'bang'?

The same goes for the sound of guns. It's just that the high-temperature and high-pressure gas produced by the gunpowder in the bullet is much stronger than the gas in ordinary wine bottles. Therefore, the sound of a bullet being discharged is naturally much louder than the sound of a wooden cork opening a wine bottle.

The function of the silencer is to make the bullet at the moment of discharge, so that the high-temperature and high-pressure gas inside is not released at once.

Because in the port of the barrel there is also a section of silencer. This section of silencer is equivalent to lengthening the barrel of another section. When the bullet is fired out of the barrel, the high-temperature and high-pressure gas in the barrel is not released all at once, but is buffered in the silencer, which naturally reduces the sound of the bullet when it is discharged.

To use a figurative analogy, for example, the sound of an iron ball falling on the grass must be much quieter than the sound of falling on the concrete floor.

This is because the grass can create a buffer against the kinetic energy of the iron ball. It is difficult to produce this buffering process on the concrete floor, and this kinetic energy can only burst out at once, so the sound of the iron ball falling on the concrete floor is much louder than the sound of falling on the grass.

Zhao Zhongyao wants to develop a grenade silencer, the same reason, he wants to cover the outside of the grenade, and then cover an iron cover with small holes, so that at the moment of the grenade explosion, it can also effectively reduce the sound of the grenade explosion.

"That's right, that's it, I'll design this grenade silencer first. After Zhao Zhongyao thought about it, he designed a drawing of a grenade silencer next to the design drawing of the M68 grenade that was originally designed.

Since the drawings of this grenade silencer are much simpler than designing a grenade. So, it took Zhao Zhongyao almost two hours to draw the drawings of the grenade silencer.

"yes, that's it. After Zhao Zhongyao designed it, he put it in the drawer first.

For Zhao Zhongyao, he knew that he had to use the M68 grenade he designed to deal with a big wild boar, and that would definitely be no problem.

But in any case, blowing up a wild boar with a grenade is a bit overkill. If there was another better way, Zhao Zhongyao was still unwilling to use this method.

Not to mention the question of wasting gunpowder or not, the key is to blow up the wild boar with a grenade, which is likely to be discovered by the villagers. Even though Zhao Zhongyao has now designed a novel gadget like a grenade silencer.

But Zhao Zhongyao also knew very well that even if a grenade was equipped with a silencer, it would definitely not be as effective as a pistol with a silencer.

You must know that after the bullet in the gun 'collapses' from the barrel, it forms a sound of air pressure bursting in the muzzle.

The sound of a grenade exploding is not quite the same as the sound of a gun being fired.

The sound of a grenade explosion is much louder than the sound of a gun being fired. The reason is that there is much more gunpowder in the beat than in a bullet.

In a sense, the principle of grenades and explosions is the same as that of gun shooting. They all use the high-temperature and high-pressure gas produced by gunpowder when it explodes, and then let these high-temperature and high-pressure gases push the 'shrapnel' to attack the enemy.

It's just that after the bullet in the gun explodes, the high-temperature and high-pressure gas it produces is bound in the barrel of the gun, and it can only push one bullet out of the chamber at a very fast speed.

The grenade is different, it is to split the entire body of the projectile, and then let the high-temperature and high-pressure gas generated by the gunpowder inside push the fragments of the projectile body to shoot in all directions.

In this way, it is naturally much easier to restrain the gas in the barrel with a silencer than it is to restrain the gas in a grenade with a silencer. The former is the barrel itself that has been confined to this high-temperature and high-pressure gas!

And the latter did not have a barrel, and the high-temperature and high-pressure gases were not constrained by anything from the moment the grenade exploded. It is really difficult to design a silencer on the outside of the grenade to restrain this high-temperature and high-pressure gas.

Therefore, Zhao Zhongyao also knew that even if he designed this kind of grenade silencer, it would not be as useful as the silencer on the gun.

Of course, it is still possible to magnitude reduce the distance of sound wave propagation when a grenade explodes. In this way, it is equivalent to 'silencing' the grenade.

In other words, the silencer on the grenade can only reduce the sound decibel of the grenade when it explodes. It is simply impossible to really make a grenade explode without a sound.

As long as the sound produced by the grenade when it explodes can be heard from a certain distance, it is already good.

Therefore, after Zhao Zhongyao designed his new grenade and new grenade silencer, he did not plan to use the M68 grenade he developed when he killed the dangerous wild boar this time. He still wanted to try some ordinary methods first, after all, it was just a big wild boar! It was not the enemy's thousands of troops, so there was no need to use any military weapons.

After Zhao Zhongyao returned to the factory that day, he did not tell others about his visit to Zhujia Village. He just designed the new grenade and grenade silencer in his office and put it in the drawer of his desk.

The next morning, Zhao Zhongyao first held a general meeting of all employees. It was decided to put the issue of 'wild boar' to the all-staff meeting for discussion.

As the saying goes, 'three stinkers top one Zhuge Liang'. As long as it comes to brainstorming, there are still many useful ways to come up with them.

Regarding Zhao Zhongyao's trip to Zhujia Village, as long as Zhao Zhongyao doesn't say it, of course, everyone will not know. How to say, Zhao Zhongyao is also the director of this base, his behavior is unrestricted, and no one can control him.

But Zhao Zhongyao knows that now he has to tell everyone about the fact that he went to that village, and he wants everyone to know that this big wild boar is indeed dangerous, and everyone needs to work together to get rid of it.

Now all the staff are in the conference room.

Even Chen Dongshan and Zhang Lianying are now sitting honestly in the conference room, and the two of them have become very honest since the last time they let Zhao Zhongyao scare him. Especially this time, the grenade they developed did not even blow up a wild boar, which is already a very shameful thing.

Although this matter, only Chen Dongshan, Zhang Lianying and Sun David know. But they all knew that the grenade was not an advanced grenade at all, it could only be regarded as a useless grenade with a 'thunder and rain'.

Chen Dongshan and Zhang Lianying already knew that their military technology was really nothing in front of Zhao Zhongyao, who could even develop missiles, what were these grenades and guns, and how could they stump Zhao Zhongyao.

"Alright, everyone's here. We will now have a meeting. ”

After Zhao Zhongyao finished speaking, he looked at everyone with calm eyes. He didn't say what meeting he was going to have, and when everyone listened, they naturally began to speculate.

Chen Dongshan and Zhang Lianying, two old guys, sat at the back of the conference room. There were many workers in front of them who kept the two of them out of sight. If you hadn't paid special attention to them, no one would have noticed that he was also attending the meeting.

But Zhao Zhongyao was sitting on the rostrum. Naturally, this rostrum was half a foot higher than the rest of the room. Zhao Zhongyao could still see Chen Dongshan and Zhang Lianying sitting in a corner at the back of the conference room.

Now as soon as the two old guys heard Zhao Zhongyao say that they were going to have a meeting, but they didn't say what they were going to do, the two began to mumble quietly.

"Hey, Lao Zhang, why didn't you tell Zhao Zhongyao what kind of meeting he was going to have before? We just had dinner and called us to come to the meeting. Chen Dongshan looked at Zhang Lianying with some unhappiness and asked. (To be continued.) )