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When Yang Jing, Chen Xixian and others came to the Dan room, they smelled a strong smell of gunpowder, this kind of breath was too familiar to Yang Jing, and Yang Jing confirmed at the first time that there must be nitrate in this Dan room!

Chen Xixian is not an alchemist after all, and Yu Chonglou has been seriously injured, and now that time is pressing, there is no time to call out to others, so Yang Jing can only do it himself. Pen % fun % Pavilion www.biquge.info

For the layout of the Dan room, Chen Xixian is still relatively familiar, and the materials in the Dan room are also being prepared by him, so he quickly brought Yang Jing to the material room.

For many minerals and medicinal materials, we must be familiar with the efficacy and properties of the herbs, as well as the toxic side effects, etc., what kind of reaction will be produced by the compatibility between each other, and what kind of changes will occur under high temperatures.

These are all secrets that are not passed down, and each alchemist has his own unique recipe and technique, and there are also great differences in the selection of medicinal materials and minerals.

But generally speaking, things like cinnabar mercury alum saltpeter are used by everyone, so it is not difficult to find.

It takes a long time to prepare nitroglycerin, and it requires extreme care, when Nobel wanted to improve nitroglycerin explosives, he blew up the laboratory several times before experimenting with something like diatom mud to temper the strength of nitroglycerin.

Although Yang Jing also knows how to prepare, it is impossible to make it in large quantities and quickly, and when you make a sufficient amount, Yang Miaozhen will already die in the cave.

So Yang Jing's goal is very clear, he wants to find those pills that were sealed after the explosion!

"Master Chen Guan, where are all the remnants of the pill after the explosion?"

Because these pill materials can blow up Tongding into waste, it can be seen that the explosive power is very powerful, and as an alchemist, it is impossible to abandon everything when encountering danger, in order to figure out the reason, Yu Chonglou should not be able to throw away all these things, but stay, slowly analyze, and find out the cause of the explosion.

Yang Jing was not wrong, because the Ding had been fried several times, and a lot of these pill materials had been piled up, and Yu Chonglou had a very high attainment in alchemy, so if he didn't figure out the cause of the explosion, how could he give up.

After so many failures, the remaining pill material was also carefully wrapped in oiled paper, loaded into a clay urn, sealed the mouth of the urn, and then placed it in the sink.

Because the ancients had high requirements for water quality, of course, they did not have requirements for the purity of water quality like modern chemistry, but on the source of water.

For example, well water, spring water, rootless water, flower and grass dew water, boiling water, etc., they only judge what kind of Danfang should be used for different water from the source of these waters.

The water flowing in this tank is actually the living water drawn from the mountain, and the bamboo knots are used to continuously drain the water to keep the water at a low temperature, and the low temperature of the water is used to suppress the extremely violent pill material in the tile urn.

Yu Chonglou has no systematic knowledge of chemistry, and even knows it but doesn't know why, but just uses the principle of the five elements of water and fire to restrain each other, hoping that the flowing water can take away the fire of the Dan material.

After Chen Xixian pointed out all these clay urns, Yang Jing was also overjoyed, because there were five or six clay urns in this sink!

Yang Jing asked people to take these tile urns, and found items such as iron drills and gunpowder, and returned to the Broken Dragon Stone in the Yuhuan Cave.

Time is not waiting, Yang Jing is not verbose, and said to Chen Xixian: "Lord, whether you can save the real person depends on you." ”

When Chen Xixian heard this, he was also a little dazed, how could this be related to Lao Dao?

Yang Jing pointed to the mountain walls on both sides of the Broken Dragon Stone and said, "Although this mountain wall is not too thick, it is not very easy to explode, because the official cannot know the specific power of the explosion, so he can only find the weakest position to drill out the blast hole filled with explosives." ”

"And the weakest point of this mountain wall should be in the bearing point, which requires a lot of calculations, but if I calculate alone, it will be very time-consuming, so I will teach you a set of general formulas, let's calculate them separately, and then synthesize the results. ”

Yang Jing said while drawing the general outline of the mountain wall on the flat stone gate, and when Yang Jing drew the three-dimensional space line composition, Chen Xixian and others were amazed.

Although it is just a simple line, it is like perspective, this concept of spatial deconstruction, in the eyes of Chen Xixian and others, is really too magical, as if Yang Jing has eliminated all the flesh and blood hair, and penetrated the essence, just like a profound cultivator, who can ignore the vulgarity and flowers in the world, put aside all the fetters, and gain insight into the most basic operating rules of heaven and earth!

The reason why Chen Xixian abandoned his hostility towards Yang Jing was precisely because Yang Jing had the wisdom of opening up the heavens in mathematics, especially when Yang Jing wrote the formulas and equations of the "Book of Heaven".

Now, Yang Jing is really willing to teach him this!

Chen Xixian is like those masters who have come into contact with modern industrial concepts, as if he has jumped out of the shackles of this era and opened up a new world, as if standing in the clouds of the future and looking down on this old era!

He couldn't help but tremble, although Yang Jing explained quickly, he didn't miss a word, and Yang Jing explained in simple terms, coupled with the continuous use of pictures to assist in explanation, Chen Xixian has been immersed in mathematics for most of his life, and has an extremely deep background, but cognition and understanding need to be different.

For Arabic numerals, Chen Xixian does not need too much time, and he understands the concept of zero very well, but at first he did not understand that this zero should be dispensable, and in the later operation, he knew how important this zero was.

In order to facilitate understanding, Yang Jing even used the theory of Qimen Dunjia to explain that the so-called Qimen Dunjia is actually looking for the disappeared "A" among many factors.

The use of zero is also similar, the seemingly useless zero is actually more effective than the other nine numbers!

Yang Jing didn't have much time to lead Chen Xixian to appreciate the subtleties of modern mathematics, all he needed was for Chen Xixian to master this set of official affairs and equations quickly, and then improve and share the calculation tasks for him.

While explaining, Yang Jing measured the stone wall with a ruler, and kept drawing lines on the stone wall, while he and Chen Xixian calculated directly on the flat stone gate, and after the results were obtained, the location was marked.

This short calculation stunned everyone around, as if they saw two mortal celestials, writing the Book of Heaven and solving the biggest mystery in the world!

Every time Yang Jing marked a position, he asked people to start chiseling the blast holes, and then carefully filled the Dan materials into them, and chiseling these blast holes was actually a technical job, in order to succeed at a time, Yang Jing asked them to hit the blast holes very deeply, and into the form of a narrow mouth and a big belly.

After the next position was calculated, a blast hole in front had already been prepared, filled with gunpowder in a thin bamboo tube as a fuse, and a lot of bamboo tubes were quickly inserted into the stone walls on both sides, and Yang Jing soaked them in oil with a long piece of twine, connecting these bamboo tubes.

Because the length of the twine is different, the degree of combustion is also different, and the amount of gunpowder in the bamboo tube is also different, and it becomes a big problem to detonate it at the same time.

If these blast holes can be detonated at the same time, they can also play a resonant role and increase the power of the explosion, but this is difficult to do, and Yang Jing does not force it.

When everything was ready, let everyone back and look for cover, then raise the torch and light the hemp rope!

When Yang Jing ran away and hid behind the rockery next to the cave, Chen Xixian, who had been hiding there, stared at the stone gate, his eyes were full of regret, although he had memorized most of the calculations, but there was too much data, how much he hoped to be able to keep the calculation process on the stone gate!

It's just that he soon forgot about this regret, because the earth-shattering explosion came, although Yang Jing had already reminded them to plug their ears, or open their mouths to balance the pressure in their ears, but the shock wave and huge sound of the explosion still shocked everyone to the extreme!

"Boom, boom, boom!"

Shattered rocks splattered everywhere, fist-sized gravel even smashed the pavilions and gardening decorations around the cave!

The earth shook and the smoke dispersed, but Yang Jing was unusually calm, because he had already experienced this feeling in Longguan, and he was calmer than everyone else.

He silently counted the number of explosions to make sure that all the blast holes had been blasted, and then he walked out from behind the rockery, waved his sleeve robe, dispersed the smoke, and saw that although the stone gate in front of him was still intact, the edge on the left really exploded a crack that could accommodate people to enter and exit!

Although the right side did not explode, for Yang Jing, he was already quite satisfied, after all, he was not a professional, the calculations were only rough, and the gunpowder was not precisely prepared, but directly used the Dan materials of the fried ding, and it was unexpectedly good to be able to achieve such an effect.

When Chen Xixian, Yi Ji and the others walked out from behind the bunker and saw the crack in front of them, their hearts were already full of admiration and awe for Yang Jing!

"Master!" Yi Ji didn't care about this much, and hurriedly rushed to the rift!

Hu Mingqiao hurriedly stopped the girl, listened for a while, and then she said: "There is still a fight inside, don't go ahead if you don't want to die!"

Although Yi Ji has been practicing internal strength since he was a child, after all, he is still young, and his body bones can't support the strong internal force, let alone perform advanced kung fu, in front of Wudang Lotus real person Hu Mingqiao, he was so shocked that he couldn't speak, this is the bearing of a martial arts master!

Yang Jing followed closely and followed Hu Mingqiao into the cave, and Liu Hanfeng Ruochen and Chen Xixian and others also entered the Yuhuan cave.

Under the light of torches and lanterns, everyone saw that the inside of the cave was actually very spacious, and there were already several corpses lying on the ground, one of which was shot into a hedgehog by a tailless iron arrow, and another had a rotten head, but they didn't know what kind of hidden weapon caused such a huge trauma.

The sound of fighting continued to be heard from the depths of the cave, and Yi Ji finally couldn't help but shout, "Master, Master, we have rescued you!"

The people in the fight also seemed to hear Yi Ji's call, and soon there was an exclamation, Xu was distracted by Yi Ji's scream, allowing the opponent to take advantage.

Yi Ji was concerned about the life and death of her master, and when she heard the movement of the fight, her heart was suddenly ecstatic, and she was about to rush inside, but she was stopped by Yang Jing and reprimanded her in a low voice: "If you want to save your master, don't mess around!"

If it was in the past, Yi Ji, who was not afraid of heaven and earth, would definitely refute Yang Jing, and even scolded Yang Jing directly, it can be seen that after seeing Yang Jing's various amazing methods, Yang Jing's impression in her heart has already undergone earth-shaking changes.

was reprimanded by Yang Jing like this, Yi Ji really covered her mouth, while Yang Jing counted the corpses on the ground along the way, pressed the handle of the knife behind her waist, glanced at Hu Mingqiao, and walked towards the depths of the cave with steady steps!