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Mentioned long ago.

Just as the base's material platform and storage warehouse belong to two different factory areas, the 12th Branch Factory and the 17th Branch Factory, the base's explosives research and development unit and explosives testing site are also not in the same factory area.

Among them, the sixth branch factory where Gao Yuanming, Xu Yun and others are in charge of performance testing, collection and analysis is the detonation laboratory.

The specific research and development of explosives is located in the second branch factory farther away, which is completed by a team of 40 people and equipped with a production workshop.

Therefore, every explosive performance test at the base is actually a linkage between the two branch factories.

half an hour later.

At that time, Wang Yuan, the deputy chief engineer of the second branch factory and the leader of the explosives project, hurried to the basement of the sixth branch with a group of people.

Wang Yuan was a middle-aged man wearing old beige short-sleeved sleeves and a cotton cap. He was not tall, about 1.6 meters tall, with a sallow complexion, and he smiled very kindly.

However, Xu Yun noticed that Wang Yuan's left earlobe was obviously missing a small piece of flesh, and it seemed that he was probably a person with a story.

Wang Yuan still had a stick of cigarette stuck in his ear that lacked an earlobe. For a short time, Xu Yun had the idea of ​​asking if the cigarette was King Furong.

After all, the name Wang Yuan with cigarettes is still very stalking.

Of course.

This thought lasted for a short time, and was dismissed by Xu Yun after a while, a certain person is not worthy to be compared with a senior like Wang Yuan.

Later, under the recommendation of Lao Guo, Xu Yun quickly greeted Wang Yuan and others:

"Hello, Engineer Wang."

"Consultant Han, hello."

After the simple greetings.

Gao Yuanming looked at Wang Yuan again, raised his chin towards him, and asked:

"Old Wang, have you brought your explosives?"

Wang Yuan hummed when he heard the words, and turned slightly to one side, revealing several boxes behind him:

"Here they are. They're all here. The explosives and equipment have been assembled."

Gao Yuanming nodded in satisfaction.

Then he glanced at the watch on his wrist, seeing that the pointer was already running towards ten o'clock, he quickly waved his hand and said:

"Okay, since we have brought all the things, let's hurry up and set up the scene, just to test whether the components produced by the Germans work well!"

"If all goes well, we can still taste the winter wheat from Mao Xionglai. I heard that the steamed bread made by this thing is quite delicious."

Wang Yuan and others have no objection to this.

Soon after, Wang Yuan led many engineers and began to move the boxes to the test site.

Xu Yun, Lao Guo and others stayed aside and became spectators because of their mobility and inaccurate professionalism.

Students who have developed high explosives know it.

As of the present period, three generations of explosives have survived.

The first generation of explosives was nitric acid explosives improved by Swedish explosives king Nobel.

The second generation of explosives is TNT explosives invented by German chemist Will Brandt.

The third generation of explosives also came from the hands of the Germans, called RDX.

Nowadays, TNT and RDX are common types of explosives in various fields, and they are also frequently used in military industry.

But on the other hand.

Although the second-generation and third-generation explosives are very powerful, ordinary TNT and RDX are not enough for weapons of the magnitude of the atomic bomb.

mentioned earlier.

The principle of the atomic bomb is the fission of atoms, using neutrons to impact the nucleus.

This impact is not just like we throw things away. It is required that neutrons must impact the nucleus at high temperature and high speed to induce nuclear fission.

In order to be able to initiate the reaction.

The basic approach of various countries is to use high explosives to generate huge shock waves and high pressure when they explode, compress nuclear fuel to make it reach a critical state, and produce nuclear fission.

Generally speaking.

A nuclear bomb with a nuclear charge of 60 kilograms needs to be equipped with high-energy explosives that detonate at least 2,000 kilograms.

at the same time.

The shock wave and high pressure generation time required for nuclear weapon explosion must be on the order of one ten-thousandth of a second. Therefore, the high explosive used in atomic bombs is not enough simply piled up, and must go through an extremely complicated ratio.

And this kind of matching method is to combine TNT and Hesso Finance, and try to adjust the ratio again and again.

Then, the fused explosive is tested in the detonation test field, and the increase or decrease of the ratio is optimized through the test explosion effect.

Then under the watchful eyes of Xu Yun, Lao Guo and others.

Wang Yuan and others quickly took out some large and small things from the box, some were clay pots, some were plastic boxes, and some were equipment parts made of metal.

Then Wang Yuan and others put them in the test site according to the pre-designated positions, and finally started to debug the linear oscillation detection components.

After about half an hour.

Gao Yuanming took Wang Yuan to the side of Xu Yun and the others, only to see Gao Yuanming wiped the sweat from his forehead and said:

"Director Guo, Consultant Han, we've almost prepared everything we need to do. Let's all go to the ground first."

It has to be said that Gao Yuanming is quite a bachelor.

Although at this moment he reckoned in his heart that he still disliked Xu Yun for wasting resources, but he didn't resist much in action. This can be regarded as the characteristic of people in this era in terms of execution ability.

Then the group took the lifting platform back to the ground again, and came to a room far away from the test site building.

This room is a ground observation area built by the base after Rabbit reached a deal with Germany, and it is specially used to accommodate observers who perform detonation experiments.

A few more minutes passed.

A man in his thirties hurried out from the basement and came into the observation room:

"Gao Gong, Wang Gong, the countdown to the ignition device of the explosives has begun!"

Gao Yuanming nodded calmly:

"Thanks for your hard work."

The conditions for detonation experiments these days are limited, and it is difficult to directly transmit instructions through computers like later generations. During experiments, the only way to guide them is to activate the countdown device manually.

Even on the day when the nuclear weapons actually exploded, the rabbits used only a set of wired automatic control system, and the control tower was more than 20 kilometers away from the center of the tower.

Fortunately, this countdown process is not very risky. Under Xu Yun's repeated request, the sixth branch factory set up a 20-minute countdown.

The operator counted the time for closing the door, going upstairs, leaving the building, and arriving at the observation room, and it took only ten minutes at full count.

After the last member entered the observation room, Xu Yun and others patiently waited for the countdown.

ten minutes.

eight minutes.

four minutes.

One minute

When the time came to 10:17 in the morning, there was an undetectable vibration from the ground under Xu Yun and the others.

Bang——

The duration of the vibration was very short, not even a single dust in the observation room was shaken off.

It is clear.

The quality of the base detonation laboratory is still very high - after all, in terms of equivalent, this is already one-twentieth of the largest cold explosion.

However, for the sake of safety, Lao Guo waited for a few more minutes, and after confirming that everything was fine, he took everyone out of the observation room and returned to the underground testing ground.

The aisle of the underground test site was still as clean as before, but after several engineers opened the door of the test site, a puff of smoke and dust rushed out of it.

"cough cough cough"

Xu Yun quickly waved the smoke away with his hands, and at the same time looked up to the inside of the testing ground.

Only at this moment.

A lot of smoke and dust floating in the air can be vaguely seen in the test site, and there are also various gravels on the ground near the wall.

As for the center of the site, there were holes of various sizes in the parts that were originally filled with explosives, and the entire site was in a mess, as messy as the dormitory of a senior in later generations.

Qiao Caihong, who saw this kind of picture for the first time, couldn't help but widen his eyes, looking quite surprised:

"It's so powerful"

Gao Yuanming smiled when he heard the words, but didn't speak.

Just kidding, this is 120 kilograms of TNT mixed explosives, isn't it powerful?

well known.

The energy of 1 kilogram of TNT is about 4.184 megajoules, which is 4,184,000 joules.

What is this concept?

For example.

These energies can translate a one-kilogram object 420 kilometers, or a 100-kilogram object moves 4.2 kilometers, and an ear-cough

That's the case for one kilogram, let alone 120 kilograms of TNT mixed with RDX.

In terms of magnitude.

The power of 120 kilograms of TNT explosives is basically equivalent to the explosion of an 800-liter oil tank truck.

If you still can't understand the video of the explosion of the liquefied gas tank, have you watched it?

The calorific value of 1 kg of liquefied petroleum gas is about 46,100 kilojoules, and the explosion effect of a full household gas tank is almost the same as the explosive power Xu Yun and his team experimented today—you can find domestic and foreign gas explosion videos online , Many gas tanks that exploded are actually not full.

The area of ​​10,000 square meters at No. 5 station is quite large, but it is also quite small. In addition, Gao Yuanming and the others have placed a lot of measuring objects in the test site in advance, so it is normal for such a messy scene to appear.

However, although the test site was full of dust, Gao Yuanming and others did not have the slightest intention of waiting for the dust to fall to the ground before taking action.

I saw Gao Yuanming and the others took out several pairs of cotton and linen labor protection gloves from their bodies and put them on their hands as if conjuring, then covered their mouths and noses, and rushed into the venue quickly.

Gao Yuanming didn't forget to assign tasks while running, and after a while he only heard his voice and disappeared:

"Xiao Xu, go and have a look at the location of the No. 1 component!"

"Old Ma, you are in charge of the No. 4 component!"

"Xiao Wang, you go find the stake of component No. 5"

At the same time, the employees of the No. 6 branch whose names were named by Gao Yuanming also responded one after another:

"receive!"

"yes!"

"clear!"

Seeing this, Lao Guo couldn't help but look at Xu Yun, and shook his head slightly:

"This old Gao. Well, Xiao Han, let's wait on the side."

Xu Yun had nothing to do with Gao Yuanming in this matter, so he had to obediently follow Lao Guo to another observation room and waited.

This observation room is no different from the one on the ground, except that the walls are thicker—this room was originally planned to keep people in for observation, so as to ensure that various experimental parameters can be obtained in the first place.

After more than ten minutes.

Gao Yuanming and others came in from the outside carrying a few boxes.

These boxes are the receiving equipment of the sensor. During the experiment, Gao Yuanming and the others placed them in a very safe corner, and the outside was surrounded by a protective shell with iron sheets.

While Gao Yuanming was arranging the boxes, Wang Principle took out a timer from a corner of the observation room.

"Old Gao, where is the power supply?"

"There's a socket in the cabinet on the left, just plug it in."

"okay!"

After fiddling for a while, Wang Yuan and others quickly began to read the data in the receiver.

This receiver can be regarded as a relatively primitive storage device. It is said that there is a mercury delay structure and a gear storage module inside, and it also has a recording function for a card reader.

One piece of this equipment can record the parameters collected by six linear oscillating elements at most, and exactly four sets are needed for the 24 element placement points in the entire test site.

After power on.

The receiver soon began outputting logging information.

click click click——

Gao Yuanming stood beside the counting timer and began to read the note seriously.

"B1 is interpreted as 1848586873456, which means the detonation velocity is 7164.56 meters."

"8938438485 correction amount is +120"

"The explosion pressure of element 13 is 3.23e9pa"

"The density of component number 17 is."

As each card was printed out, groups of parameters appeared in front of everyone one after another.

mentioned earlier.

The position and even the orientation of each group of components have been rigorously calculated in advance, so after summarizing the parameters of each group and deriving, the data such as the initial velocity of the explosive and the diffusion trend in the space can be accurately restored.

half an hour later.

Gao Yuanming handed over the calculated data to Wang Yuan:

"Old Wang, take a look."

Wang Yuan took the report and glanced at it quickly, his brows were quickly knit into a ball:

"The detonation velocity is 7434 meters. It's still too slow. In addition, the peak shock wave overpressure is not enough. It seems that the ratio needs to be adjusted again."

well known.

Henrych once derived two formulas based on a wide range of experimental research work on the explosion of TNT charges:

ToW√3=103(0.107+0.444Z+0.264Z20.129Z3+0.0334Z4) 0.05≤Z≤3

To=B×103×W√6R√

The meaning of these two formulas is the time parameter of the shock wave, and it is also the core mathematical basis for most explosive data research in this era.

However, this formula is all mathematical experience after all, and cannot correspond to each experimental environment one by one.

For example, in Xihai Province, the altitude is high and the air pressure is low, and the boiling point of water is very different from normal. This model will naturally fail in Xihai.

Because of this, Wang Yuan and others can only rely on pure manpower to optimize the explosives, that is, to judge whether their direction is right or wrong from the data of the explosion.

Obviously, this time they failed again.

Seeing this situation, Lao Guo couldn't help but patted Wang Yuan's shoulder twice, and comforted him:

"It's okay, Engineer Wang. If the result is not ideal, it is not ideal. At least these parameters can be reversed, which can prove that the components given to us by the Germans are quite accurate."

"With these components in hand, qualified explosives can always be slowly deployed."

Unexpectedly, Wang Yuan shook his head and did not accept Lao Guo's comfort:

"Director Guo, what you said is wrong."

"Our high explosive is not only enough to change the ratio of TNT and RDX, but more importantly, to allow the two to fuse."

"To tell the truth, the batch of explosives we experimented with today is already the best batch of finished products. If we want to increase the detonation velocity and overpressure, we must create a Mikhailov pot that can further integrate the two. OK."

"But the problem is that Mao Xiong didn't even give us a blueprint for this technology. Unless we get lucky, it's impossible to come up with this kind of tool."

"Without a Mikhailov pot, where does the so-called blending come from?"

"."

Looking at Wang Yuan who kept shaking his head, Lao Guo couldn't help being slightly taken aback.

Mikhailov pan?

He had heard about this tool—his teacher had mentioned it to him when he was an intern at the reactor.

At the same time, as the deputy director of the base, he also quickly thought of one thing:

There was indeed no information about this technology in the list of Mao Xiong's supporting technologies.

That's right.

It wasn't that Mao Xiong burned the relevant drawings later, but that there was no technology to use the Mikhailov pot as an aid at all.

Although he doesn't know much about the research and development of explosives, this kind of situation that lacks tools and cannot continue research is quite common in fluid mechanics, so he can indeed understand Wang Yuan's difficulties.

Thinking of this, Lao Guo couldn't help but also frowned.

A few seconds passed.

He subconsciously turned his head and asked Xu Yun:

"Xiao Han, do you know anything about this Mikhailov pot?"

Lao Guo's question was an instinctive reaction, after all, Xu Yun had given him various big and small surprises.

But to Lao Guo's regret, Xu Yun did not give an affirmative answer this time:

"Mikhailov pot, Mr. Guo, I've heard of this thing, but I really don't understand the specific principle. I only know that it is a tool for burning explosives."

Old Guo was stunned for two seconds when he heard this, and then he sighed in disappointment.

Too.

This Han Li is not someone from the future decades later, how could he understand everything?

This kind of thing can only take risks and pile up manpower.

But just when Lao Guo was about to speak to Wang Yuan, Xu Yun's voice rang out first:

"but."

Lao Guo was stunned for a moment, and subconsciously asked:

"But what?"

Xu Yun glanced at him, and the corners of his mouth curled up again:

"Although I don't know how to make the Mikhailov pot, I once heard a sentence from a man named Altaïr Ibn, the content is"

"Killing all witnesses is a perfect assassination."

"?"

A question mark suddenly appeared on Lao Guo's face:

"Xiao Han, what do you mean by that?"

Xu Yunjian pointed to the remaining explosive powder not far away, and explained:

"Guo Gong, what is the purpose of our Mikhailov pot?"

Lao Guo gave him a weird look, but he replied honestly:

"Of course it is to prepare a more powerful high explosive."

Snapped!

Xu Yun snapped his fingers quickly, and shrugged his shoulders at Lao Guo:

"So, if we directly tinker with more powerful explosives, wouldn't that be the same as creating the Mikhailov pot?"

Say it.

Xu Yun glanced at the dazed Lao Guo again, and said with a smile:

"Mr. Guo, have you heard of CL20?"