Fan Ning followed the old craftsman Song to a large tent, and there were several rows of iron shelves erected around the big tent, and all kinds of iron-shelled fire mines were placed on the iron shelves, almost all of which were cut open and placed flat on the iron frame.

Song Laojiang smiled a little embarrassedly: "Last time, the imperial history used a dagger to cut the paper fire thunder gave us a lot of inspiration, we also cut the failed iron fire thunder, looking for the reason for the failure, a total of more than 300 iron shell fire mines, there are only forty-seven here, all of them are more typical problems, and then carry out correction tests, and then correct and test again until the final success." ”

"Not bad! Not bad! ”

Fan Ning praised again and again that this method of research was very good, and he said to Song Laojiang: "You must record your method, no matter what you study in the future, you should use this method!" ”

"Thanks to the praise of Yushi, we have recorded each test in detail."

Old Craftsman Song came to a large table in the middle, and there was also a cut iron-shelled fire thunder on the table, and Fanning immediately realized that this was a successful iron-shell fire thunder.

"Is that it?"

"That's it! We tried it nearly 400 times before we finally succeeded. ”

Fanning took a closer look at this iron fire thunder, the shell of the fire thunder is cast with pig iron, slightly thicker than two copper coins, and the shape is gourd-shaped, but there are two strands of little finger thick fire rope twisted into a twist shape, from the top to the bottom, the gunpowder twist is inserted from the top, divided into three strands, two of which are inserted into the gunpowder, and the other gunpowder twist is inserted into this twisted braid fire rope.

Fanning was a little puzzled, pointed to the braided in the middle and asked, "What is this?" ”

"This is pine powder wrapped in fire paper, and the combustion effect is very good, it can make the underlying gunpowder also ignite quickly in the shortest time."

Fanning suddenly understood that black powder cannot explode violently at the same time like explosives, it has a process of burning layer by layer, which is more time-consuming, and cannot achieve the effect of violent expansion of gas, and it is most likely to cause the gunpowder to explode when it burns halfway.

Paper bags, porcelain vases and clay pots all have this problem, the combustion is not sufficient, the power is greatly reduced, and it is easy to cause all the gunpowder to burn the iron shell but still does not explode, so they thought of using the method of using accelerant.

Pine Ming is made of amber wood grinding powder, the old red pine in the north can be seen, is the essence of the red pine tree after hundreds of thousands of years of decay, after the dead old red pine is cut off, the cross-section is seen like bacon like the general wood, that is Songming, also called North Agarwood, is a very precious wood, wood inherits all the advantages of Korean pine material: not rotten, not afraid of moisture, not afraid of soaking, the material is hard, the color of North Agarwood is yellow-red, the texture is beautiful.

This kind of red pine tree with pine is abundant in Kunzhou and Sakhalin Island, but not in the Great Song Dynasty, but in the mountains of northern Liao.

Songming is an excellent ignition and the best natural accelerant, which can be used locally in Kunzhou.

In fact, Fanning thought of white phosphorus, white phosphorus is also an excellent accelerant, there is a large amount of guano on the islands around Kunzhou, and white phosphorus crystals can be extracted from it by repeated cooking, but white phosphorus is easy to spontaneously combust, too dangerous, or better to use pine powder.

Fan Ning suddenly became interested, and said with a smile: "Can this pine powder light one and take a look?" ”

"Absolutely!"

Old Craftsman Song took out a twist wrapped in pine powder from a wooden box on the iron frame, and took Fan Ning to a stone house in the far corner, which was at least thirty or forty steps away from the tent, there was no window in the stone house, and it became dark after closing the door, Old Craftsman Song said apologetically: "This is the test room, only here is fire allowed!" ”

Song Lao Ran lit the velvet with flint, and the stone house suddenly brightened, he hung the pine twist on the iron hook in the air, and lit it with fire, only to see the 'boom' burn up, extremely fast, and even the pine powder did not have time to fall down, it burned into a fire, and it burned out quickly.

This combustion effect made Fanning amazed, he thought for a while and smiled: "You can mix pine powder and nitrate powder together to experiment, and then use pine powder to replace the toner in the gunpowder, and then test it to see how the effect is?" ”

The ingredient of pure fire nitrate powder is potassium nitrate, which is a strong oxidizing agent, which can release oxygen from combustion, which is more conducive to the combustion of pine powder, and pine powder is an excellent accelerant, even more than carbon powder, and also produces a large amount of carbon dioxide gas, which may have a stronger explosive force.

Old Master Song was very excited and anxious to test, but at this time, Fan Ning suddenly remembered something and hurriedly stopped him, "I have repeatedly thought that if the gunpowder particles are made into thin flakes, maybe the effect will be better." ”

Old craftsman Song said with a smile: "It's still the big officials who think it through, how the big officials explain, how we will experiment." ”

"Don't be in a hurry, test slowly, test for two or three years, and you must create the best and most effective iron-shelled fire thunder!"

.........

Of course, the manufacture of iron-shelled fire mines is not used to deal with the Japanese army, it is enough to use strong bows and crossbows to deal with the Japanese army, and it is enough to use rockets, fire oil and porcelain fire mines to deal with Japanese warships, and iron-shell fire mines are still used to deal with Liao and Western Xia.

Fanning is now quite concerned about the war in Japan, since a few months ago, he sent Yu Xiaonian as an envoy to Mutsu and quickly reached a consensus with the Abe family, they have provided 2,000 pairs of leather armor, 2,000 shields, 2,000 spears and 20,000 stone of food to support the Abe family's military expansion, and if necessary, the Song army also provided 1,000 bows and crossbows to participate in the battle.

Now that winter has begun, the fighting has stopped, but Yu Hyo-nian led 50 experienced veterans to Mutsu last month, preparing to use the winter to help train Mutsu's army.

Judging from Yu Xiaonian's reaction, Abe Yoritoki had already recruited 5,000 troops, and after receiving the support of the Song army, he was full of ambition and prepared to launch an attack on the 2,000 imperial troops entrenched in the southern part of Mutsu Province after the beginning of spring.

However, the pressure on Japan was a long-term process, and Fanning had made it clear that the Song Dynasty strictly prohibited the export of pig iron to Japan, which itself produced very small pig iron, some iron sand obtained from mountains and rivers, and the origin was Mutsu.

This is also an important reason why the Japanese imperial court wants to control the country of Mutsu, to control the production area of iron sand.

The shortage of pig iron in Japan was mainly obtained through trade with Goryeo and the Song Dynasty, but due to Japan's great ambitions for Goryeo, Goryeo stopped exporting pig iron to Japan, and Japan could only rely on the pig iron trade of the Great Song Dynasty.

Once the Song Dynasty stopped sending pig iron to Japan, the war between Japan and Mutsu would become difficult without the supply of pig iron.

Fanning didn't want the outcome of the war to be separated from Japan anytime soon, and it was best if the war could last for more than ten years and seriously weaken Japan's strength, which was the result that Fanning expected.

Winter is the day when everything is dormant, and in late November, another heavy snowfall has arrived, covering the north and south of Kunzhou with a thick layer of snow, and the severe cold envelops Kunzhou, as if even time has been frozen by ice and snow.

Fast forward to February of the following year, when the southern part of the Japanese archipelago was the first to melt the snow and ice, and spring arrived.

........

Kyoto, that is, Heiankyo, is the capital of Japan, various conflicts of interest, the interests of various forces make Japan full of contradictions, the lords of the large estates and the lords of the country of Zhixing hold the real power of the place, and the situation of the imperial court is not optimistic, the Fujiwara family has controlled the power of the court for a hundred years, and the queens of the past generations are the daughters of the Fujiwara clan, so that the Fujiwara family has in fact become a family of national abbots.

In order to regain imperial power, the Japanese emperor began to use the power of the samurai, and under the support of the emperor, the samurai group led by the Genji family began to rise.

They strengthened themselves by raising armies to recruit separatist local forces on behalf of the imperial court, but they also led to wars in Japan.

Shortly after the end of the Heian period, Japan spent more than 100 years in wars and turmoil, and it lasted for more than 100 years until the arrival of the shogunate.

Early that morning, a general in his thirties, led by his chamberlain, was walking briskly towards the emperor's courtroom.

This burly general is none other than Minamoto Yoriyoshi, the third chief of the Kawachi Gento family, who is currently the guardian of the Michinoku Kingdom, responsible for suppressing the rebellion of the Abe family, a wealthy family of the Mutsu Kingdom, and he has also inherited the prestige of his father, Minamoto Yoshinobu, as the leader of the Kwantung samurai group.

Wearing a gorgeous armor made of silver and a golden helmet, Yuan Laiyi walked vigorously, and the pace of his chamberlain was slightly slower, which made him seem a little impatient, but he tried his best to restrain himself.

At this time, the chamberlain came to a large courtroom, stood in front of the door and said respectfully: "General, please!" The Emperor is already waiting for the Shogun in the house! ”

Yuan Laiyi strode into the room, a faint sandalwood came to his nose, the room was exquisitely arranged, but very simple, in the middle was a curtain, a person was sitting faintly behind him, and a guard with a knife stood on each side, staring sharply at Yuan Laiyi who walked in.

Yuan Laiyi hurriedly knelt down, kowtowed, and said, "Minister Yuan Laiyi greets His Majesty the Emperor!" ”

Sitting behind the curtain was the 70th Emperor of Japan, named Jinren, who was later revered as Emperor Goresen, who was about 30 years old, with a slender face, a very pale face, and a very soft speech.

"I have heard the news that Abe Yoritoki's army has conquered Ikawa Castle and Taga Castle, and 2,000 defenders have surrendered, and I want to know why the Mutsu Oku, which has been pacified, is fighting again?"

"Back to Your Majesty, Abe Lai Shi never surrendered, he was just defeated by the minister, forced by the situation, had to sacrifice the land as a minister, the minister learned from his son-in-law Ping Yongheng that the reason why Abe rebelled again was because he had the support of the Song Dynasty."

"Song Dynasty support?"

Emperor Jinren was slightly stunned, and then understood, "Do you mean the Song army that occupies Ezo?" ”

"Exactly! If the Song army did not cut off the Song army's support for him, Abe Laishi was afraid that he would not be willing to retreat to the northeast, and would continue to lead the army south, becoming a big trouble for the imperial court. ”

Emperor Jinren pondered and asked, "What about your opinion?" ”

Yuan Laiyi straightened his waist and said: "Wechen knows that Ezo is lonely overseas, and he can't support Mutsu from land, so he can only take the sea route, if he can destroy the Song army's warships, then within two years, when the Song army in Ezo can't support Abe Yori, Wechen is confident that he can completely kill the men of the Abe family within two years." ”

Emperor Jinren was silent for a long time and said, "But I don't want a war with the Song Dynasty. ”

"Emperor Qiyu, there is no need for the imperial court to take action, the minister knows that the lord of Nagasaki, Hirano Yoshi, has hundreds of warships and more than 3,000 samurai, so he sent troops to attack the ships of the Song army, and finally put the responsibility on his head, and sent his head to the Song Dynasty to apologize, and there will be no dispute between Japan and the Song Dynasty."

Emperor Kishihito knew that the Genji family had coveted the rich Nagasaki for a long time, and actually wanted to use this opportunity to eradicate Hirano Yoshi and seize the port of Nagasaki.

However, Emperor Jinhito was also happy to see Hirano Yoshi destroyed, and he pondered for a moment and said, "It's just that Hirano Yoshi may not be willing to send troops!" ”

"Your Majesty the Emperor, the minister heard that Hirano Yoshi's only son died in the hands of the Song army in the Tamna country, he has hated the Song army for a long time, if His Majesty promises to return the land of the Higo country to him, and appoint him as the guardian of the fat country, there is the family affection of the pain of losing a child, the temptation of the benefits of the land, and the call of the guardian position, Weichen believes that he will definitely pour his troops out."

Emperor Jinren nodded, "That's possible!" ”

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