Chapter 405: How to Silence a Grenade

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The weather on the day when Chen Dongshan and Zhang Lianying tested the grenade was just unstable, with clear skies and overcast clouds at other times. Therefore, even if the grenade exploded loudly, the villagers might have heard it, and they would not take the explosion If it was the sound of a grenade, it would only be the sound of thunder!

If they were suspicious of the explosion that day, when Zhao Zhongyao visited the village just now, the village uncle would have asked Zhao Zhongyao what happened to the explosion that day. ●⌒,

But when Zhao Zhongyao came to the village just now, the village uncle didn't ask Zhao Zhongyao about the huge explosion in the valley that day. This only shows that the villagers didn't care about the explosion that day.

But no matter what, Zhao Zhongyao cannot take it lightly. Only once in a while, the villagers would take the sound for thunder. But if it happened again, on a sunny day, the villagers might be suspicious.

"No, the villagers must not suspect that our factory is a military factory. If so, it will be troublesome. If they know that our base is a military factory, they will definitely take the risk of stealing guns! This kind of thing is not a trouble It’s just for fun, it’s a dangerous thing for the base and the villagers.”

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

"No, the villagers must not know that our Jianghai Machinery Factory is a military factory." Zhao Zhongyao knew that for a military industrial base, safety and confidentiality work is the top priority, and this is no joke.

"But what should I do! How can I kill the wild boar without causing the villagers to suspect anything!"

Zhao Zhongyao sat at his desk, looking at the m68 grenade he had designed before, and was thinking hard again!

"Hey, if I can lower the sound of the grenade when it explodes, can't the villagers hear it!"

When Zhao Zhongyao discussed the development of the grenade with Chen Dongshan and Zhang Lianying before, he said that the grenade designed by the two of them was "a lot of thunder and little rain." ’ And the grenade I designed was ‘thunder, little rain, big rain’.

But Zhao Zhongyao just said that at the time, and he just accused Chen Dongshan and Zhang Lianying of the bad grenade they designed.

At that time, Zhao Zhongyao really didn't consider how to reduce the sound of the grenade exploding. Only now do I know that I really need to design such an 'advanced grenade'!

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

"Slow down the sound, down the sound, silencer!"

From the idea of ​​reducing the sound, Zhao Zhongyao immediately thought of things like the silencer on the gun.

In some spy war movies, the pistols used by general agents have special silencers on them. This is to ensure that agents minimize the possibility of being exposed when conducting assassination activities.

Zhao Zhongyao, as a military scientist reborn from the 21st century into this parallel space with relatively backward technology, he knows very well what the working principle of the silencer on the gun is, and how the silencer can make the pistol fire when it is fired. Made a small sound.

"Fuck! Can I make a grenade silencer?"

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

"Well! In this way, I design a grenade silencer. Then install it on the new m68 grenade I want to develop, so that the grenade will not produce much sound when it explodes."

For this whimsical idea of ​​a grenade silencer, Zhao Zhongyao himself felt that he was really'smart' enough. He can think of this kind of analogy.

"Muffler! What is a silencer?"

Although Zhao Zhongyao had heard of silencers a long time ago and knew how they work, when he wanted to actually design a silencer for a grenade, he had to search for what kind of silencer he remembered. stuff.

The muffler is actually a very simple military product, it is a metal pipe with some small holes drilled on it.

Although this muffler is simple to make, its function is not simple. It can reduce the loud sound of gun shooting to only be heard within 20 meters. It's also an amazing invention.

The working principle of the muffler is actually very simple. It is to convert the sound of the bullet ejected from the muzzle into a sound of airflow passing through the small metal hole.

Because the loud sound when the gun is fired is caused by the sudden decompression of the high-temperature and high-pressure gas in the barrel after the bullet is pushed out of the barrel by the high-temperature gas at a very high speed.

This sound is like the cork on some wine bottles. When we slammed the cork off the top of the wine bottle, did 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 an ordinary wine bottle. Therefore, the sound of a bullet popping out of the chamber is naturally much louder than the sound of a cork opening a wine bottle.

The function of the muffler is to let the son

The moment the bullet was released from the chamber, the high-temperature and high-pressure gas inside was not released all at once.

Because a silencer is connected to the port of the barrel. This section of the silencer is equivalent to lengthening the barrel. When the bullet is fired from 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 fired.

To use an image metaphor, it is like the sound of an iron ball falling on the grass, which is definitely much quieter than the sound of falling on the concrete floor.

This is because the grass can buffer the kinetic energy of the iron ball. On the concrete floor, it is difficult to produce this buffering process, and can only let the kinetic energy burst out at once. Therefore, the sound of an iron ball falling on the concrete floor is much louder than that on the grass.

The grenade silencer that Zhao Zhongyao wants to develop is the same. He wants to put an iron cover with small holes on the outside of the grenade, so that at the moment the grenade explodes, it can also effectively reduce the noise caused by the grenade explosion. sound.

"That's right, that's it. I'll design this grenade silencer first." After Zhao Zhongyao thought it over, he designed another grenade silencer next to the original design drawing of the m68 grenade .

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

"Well! That's right, that's it." After Zhao Zhongyao designed it, he put it in the drawer first.

For Zhao Zhongyao, he knew that he would use the m68 artificial grenade he designed to deal with a big wild boar, so it must be no problem.

But no matter what, bombing wild boars with grenades is a bit overkill. If there is another better way, Zhao Zhongyao is still unwilling to use this method.

Not to mention the issue of wasting gunpowder, the key is to blow up wild boars with grenades, which may be discovered by the villagers. Even Zhao Zhongyao has now designed a novelty like a grenade silencer.

But Zhao Zhongyao also knows very well that even if a silencer is installed on a grenade, it will definitely not be as effective as a silencer on a pistol.

You must know that the bullet in the gun is the sound of a burst of air pressure formed at the muzzle of the gun after it 'collapses' out of the barrel.

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

The sound of a grenade exploding is much louder than the sound of a gun firing. The reason is that there is much more gunpowder in a darby than in a bullet.

In a sense, grenades and explosions work the same way guns fire. 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 gas push '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 chamber by the barrel, and it can only push a bullet out of the chamber at an extremely fast speed.

The grenade is different. It makes the whole projectile body fall apart, and then the high-temperature and high-pressure gas generated by the gunpowder inside pushes the fragments of the projectile body to shoot around.

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

The latter has no barrel, and the high-temperature and high-pressure gas is not subject to any constraints from the moment the grenade explodes. It is really difficult to design a silencer outside the grenade to restrain this high-temperature and high-pressure gas.

Therefore, Zhao Zhongyao also knows that even if he designed this grenade silencer himself, it is completely impossible to be as useful as the silencer on the gun.

Of course, it is still possible to greatly reduce the sound wave propagation distance when the grenade explodes. In this way, it is tantamount to 'silencing' the grenade.

In other words, the silencer on the grenade can only reduce the decibel sound of the grenade when it explodes. It's impossible to actually make a grenade explode silently.

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

Therefore, after Zhao Zhongyao designed his new grenade and grenade silencer, he did not intend to use the m68 grenade he developed when he killed the big wild boar that endangered the Quartet this time. He still wants to try some ordinary methods first, after all, he is a big wild boar! It's not the enemy's thousands of troops, there is no need to use any military weapons at all.

After Zhao Zhongyao returned to the factory that day, he didn't tell others that he went to Zhujia Village. He just designed the new grenade and the grenade silencer in his office, and put them in the drawer of his desk.

The next morning, Zhao Zhongyao first held a general staff meeting. It was decided that the issue of the 'wild boar' should be discussed at the general staff meeting.

As the saying goes, "three cobblers are worth one Zhuge Liang". As far as brainstorming is concerned, many useful ideas can still be thought of.

As for Zhao Zhongyao's going to Zhujia Village, as long as Zhao Zhongyao didn't say anything, of course everyone would not know. How to say, Zhao Zhongyao is also the factory director of this base, his behavior is not restricted, and no one can control him.

But Zhao Zhongyao knew that now he also wanted to tell everyone that he went to that village. He wanted everyone to know that this big wild boar was indeed a danger to the Quartet, and everyone needed to work together to get rid of it.

Now all employees

They all went to the conference room.

Even Chen Dongshan and Zhang Lianying are now sitting in the conference room honestly. They have become very honest since they were scared by Zhao Zhongyao last time. Especially this time, the grenade they developed didn't even blow up a wild boar, which is already a shame.

Although only Chen Dongshan, Zhang Lianying and Sun Dawei knew about this matter. But they all know that the grenade is not an advanced grenade at all, it can only be regarded as a kind of useless grenade with "big thunder and little rain".

Chen Dongshan and Zhang Lianying already knew that their military technology was nothing in front of Zhao Zhongyao. He could even develop missiles, so what were these grenades and guns? How could it be difficult for him? Zhao Zhongyao.

"Okay, everyone's here. We're going to have a meeting now."

After Zhao Zhongyao finished speaking, he looked at everyone with calm eyes. He didn't say what kind of meeting he was going to hold. After hearing this, everyone naturally began to speculate.

Chen Dongshan and Zhang Lianying, two old guys, sat at the back of the meeting room. There were many workers in front of them, blocking the two of them from everyone's sight. If he hadn't paid special attention to them, no one would have noticed that he had also come to the meeting.

But Zhao Zhongyao was sitting on the podium. This rostrum is naturally half a foot higher than other places in the meeting room. Zhao Zhongyao could still see Chen Dongshan and Zhang Lianying sitting in the back corner of the conference room.

Now when the two old guys heard that Zhao Zhongyao said that they were going to have a meeting, but they didn't say what kind of meeting they were going to have, they started whispering.

"Hey! Old Zhang, you said what meeting Zhao Zhongyao is going to have, why didn't you notify him before! We just had dinner, so we were called to the meeting." Chen Dongshan looked at Zhang Lianying with some displeasure and asked.

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