Next, in addition to cultivating, Yun Fan was busy with Li Jin and Yun Hui in the underground scientific research base. Pen % fun % Pavilion www.biquge.info

He went on to solve several problems, the internal combustion engine, the high-power electric motor, the high-capacity battery, and the alloy.

Yes, alloys. Dongzhou's current alloys are better than those on Earth in the previous life, but the direction is used for weapons.

If Yun Fan wants to build a sea ship, this sea ship must be bigger, bigger than the aircraft carrier in the previous life. Because the wind and waves off the coast of Dongzhou are too fast and too high, and the sea monster is too big and too fierce. According to others, the sea monster is larger than the whales in the previous life, and it is very violent.

For such a large ship, it is estimated that ordinary steel will not work. There is also how to cast such a large area and volume of the hull.

Before building sea ships above the aircraft carrier level, Yun Fan asked Yun Hui to design and produce ironclad ships on inland rivers first. Yun Fan's plan to sail through the world, in addition to sea ships, these ships are also indispensable, and can be used to train sailors and prepare for future seas.

As the head of the country, it is impossible to concentrate on scientific research.

Luo Yi came to report that Zan Cheng had come to Long Danjin in person.

This can be regarded as extremely bold, before Yun Fan Chitong Mountain and his party, none of the key people in Dongzhou dared to go to other countries in person.

Yun Fan already had plans to marry Zan Qing, so he didn't want to snub Zan Cheng too much, so he had to hand over everything to Li Jinyunhui and exit the secret room.

Zan Cheng's intention is self-evident, and Yun Fan doesn't want to go around the bend.

In the living room of the government affairs district, the two of them were arguing with each other, accusing each other about the Qingxi incident and bargaining for the aftermath.

As an escort, Yu Zhen is completely an ornament, and he can't insert a word.

Yun Fan secretly sighed, Yu Zhen was born as a waste insect after all, and he couldn't get on the big stage, if Yan Fei was there, he might be able to help.

This incident in Qingxi, needless to say, was caused by the Zan family's deliberate incident.

But Zan Cheng denied it, saying that it was Jian Xiu's own assertion. They can punish Jian Xiu, but Yun Fan must return Qingxi and release all the captives.

The Zan family's action was actually planned by Zan Yu, approved by the senior management of the Zan family, and executed by Zan Cheng. Although the result was somewhat unexpected, the purpose was basically achieved. The reason why he refused to admit it to death was, of course, to pay a little less price. If Yun Fan doesn't return Qingxi, then the 'magic spear' with great effect can be obtained for free.

They couldn't help but take the matter of the 'magic spear' seriously, because You Xia also fell into the hands of Yun Fan because of this, and in addition to the rumors of Qianji Pavilion, it was said that Niu Fei died under the gun.

How do they know that this gun is not the other? The gun that killed Niu Fei, the gun that injured You Xia, and the gun used by the Dragon Army are not the same thing at all.

Yun Fan didn't give an inch, who provoked Qingxi's matter, it can be verified. The other party's and your own parties are under their control.

It doesn't matter whether Jian Xiu made his own initiative or the Zan family's instructions, the important thing is that he is just defending himself and fighting back.

It is impossible for Qingxi to return it, lest the head of that enclave will not be able to 'make his own decisions' in the future. The cost of sending troops by himself was very high, and the Zan family had to compensate for it. As for the captives, they can be released, but a ransom must be paid, otherwise it is not bad to keep them as slaves.

Zan Cheng's bottom line Yun Fan didn't know, Yun Fan's bottom line directly stated that he would not give in.

I can't talk about it anymore, so I'll pause today and continue tomorrow.

Zan Cheng did not accept the banquet of the Ministry of Rites, saying that he wanted to have a home-cooked meal with Zan Qing.

Yun Fan agreed, and Zan Qing held a banquet in the inner courtyard of the Guogong Mansion to entertain Zan Cheng.

Brother and sister meet, in fact, family affection is basically only theoretical. Zan Cheng and Zan Qing are half-mothers, and the age difference is also large, and Zan Qing has not seen Zan Cheng many times.

When Zan Yu Zan Qing was young, Zan Cheng had already gone out as an official. Later, Zan Yu grew up and slowly went out to lead the troops. Zan Qing is the youngest, and there are no brothers and sisters at home who can talk about it, so they often run to Zan Yu's station.

Although Zan Yu is snobbish, he is still very good to this sister. Therefore, Zan Qing is also not at home, and has mostly lived in Wuzhou in recent years.

Later, Zan Yu lost in the Qinglong Gang and was demoted to Longmen. Longmen is remote, Zan Yu does not want Zan Qing to come here to suffer, and leaves her in Wuzhou. Zan Qing slowly got acquainted with Feng Ru in Wuzhou, and ran crazy with the Feng family caravan, and then he met Yun Fan.

When the brother and sister meet, they are polite and look at each other, and it seems to follow the procedure, and the sense of distance is obvious.

After a cordial, necessary, and absent-minded greeting, Zan Cheng asked Zan Qing, "My sister's entourage has been driven back by Grandpa Yun, do you need to add some more from home?" ”

Zan Qing replied: "Thank you brother for your concern, no need." My grandfather treated me very well, and formed a women's escort team, all of whom were intellectuals and spiritual warriors. I don't have a shortage of manpower. Besides, this country's mansion is impregnable, who can move me. The Zan family is angry with my husband, don't do it. By the way, there are five people left, and they have to trouble my brother to send their families here, so that they don't have two hearts. This is a pun, some of them defend Yun Fan and blame their mother's family.

Zan Cheng didn't want to get anything from Zan Qing, so he was not disappointed by this, and nodded and agreed to Zan Qing's request. Then he took out an object, "Your brother heard that Grandpa Yun is looking for this thing, so I brought it, you can show it to Grandpa to see if it is what he is looking for." If Grandpa is interested, you tell me that it is. ”

Zan Qing opened the package, and it was a white and yellow thing like pine resin, I don't know what it was. Looking at Zan Cheng, thinking that if the Zan family wanted to poison, they should not use such lame methods, and ordinary toxins would not work for Yun Fan, whose skill was already as high as a monk, so he nodded and responded.

Zan Cheng did not hand it over to Yun Fan during the negotiation, because he was afraid that he would pretend to be disdainful and deny the value of this thing. Once you put it bluntly, there is no room for manoeuvre. Of course, what is the use, the Zan family does not know, but Zan Yu's spies found out that when Yun Fan was in Wuzhou, he told the Yun family Wuzhou director at that time to look for this thing.

Zan Cheng handed over the things to Yun Fan through Zan Qing, tested Yun Fan's reaction, and sold them at a good price.

When I saw this thing, I couldn't tell if it was the thing, so I asked Zan Qing if he knew the origin of this thing.

Zan Qing replied: "According to the second brother, it seems to have been produced from some kind of tree off the coast of Yizhou. ”

Yun Fan was basically sure, "I'll take it for inspection, if it's really what I'm looking for, for your sake, this time it will make the Zan family have less blood." ”

Zan Qing thanked her, but still told Yun Fan that she didn't need to look at her face, just ask for what she should want.

Yun Fan nodded with a smile and went directly to the underground laboratory. After Yun Hui's molecular identification and Li Jin's identification, it was determined that this substance was natural rubber.

Yun Fan and Li Jin are both very happy, rubber to a certain extent, can be regarded as one of the foundations of modern industry, tires, air tights, insulation materials, etc. are indispensable.

With oil, with rubber, certain technologies can take off. Although Yun Hui's knowledge instiller has not yet been perfected, Yun Fan is not ready to wait, and will cultivate a group of people first. Relying on a few of them alone is far from satisfying Yun Fan's ideal scale.

The next day, Yun Fan didn't have time to drag time with Zan Cheng, so he directly said to Zan Cheng: "The gelatinous object you gave Zan Qing is really useful to me. In this way, you organize more people to collect, and I will pay you a soldier for 1,000 catties, and I will pay you an officer for 10,000 catties. As for You Xia, Jian Xiu and Jiaxing, a hundred living trees or a thousand catties of tree species are exchanged for one person. ”

Zan Cheng didn't know the output of that thing, so he didn't dare to agree casually, and he didn't even discuss the quantity, but just said that he needed to reply to Haizhou, and the king of the south would be in charge.

Another thing, Yun Fan forgot, he didn't forget, and once again mentioned the purchase of guns and the permanent embassies of the two sides.

Nanguo finally agreed to the matter of the permanent embassy. This was Yun Fan's proposal, so naturally he would not object, and let Zan Cheng go to negotiate with the Ministry of Rites.

As for the purchase of guns, Yun Fan thought about it for a long time, and he didn't know what to ask. When I looked up and saw the large map hanging on the wall, I suddenly had an idea. Huaiguo oil field, not far from the upper reaches of the Li River.

In the upper reaches of the Li River, the east is controlled by the Zan family, and the west is the territory of the Huai State.

Downstream, to the east is Lizhou of Qianguo, and to the west is Xiangzhou of Xiangguo.

To transport oil, it is certainly not possible to use horse-drawn carriages, there are no oil pipelines, there are no railways, only ships. It was transported along the Li River to the mouth of the sea, and then transported back to the Dragon Kingdom by sea ship. The land in Qingxi happened to be building an oil refinery.

Yun Fan said: "You go back and tell the king of the south, let Zan Yu open up the upper channel of the Li River for me, and always ensure the safety of my boat, I will give you the gun." You can copy it, or you can buy it from me.

This is definitely to see Zan Qing's face.

Well, that's it.

In addition, the Qinglong SD side, my Longqu, Ligu, and Longxukou three cities, and the passage to the cities near your southern country, I hope you can build it as soon as possible, which will be of great benefit to the trade of both sides.

I won't accompany you, just talk to the Ministry of Rites or directly with the Government Council if you have anything. ”

Yun Fan left Zan Cheng and began to be busy picking people, a large number of school-age students, and many waste insects recruited by Liyan, were recruited by Yun Fan to the Military and Political University Hall as the first batch of students. Including Su Wu, Jiang He, Wei Qing, Wei Sheng, Yun Zhao, Yun Yu, Yun Hai, Yun Jian, Yun Qiong, etc.

Su Wu Jianghe was already fifteen years old, but Yun Zhao and the others were only thirteen years old, and Wei Qing and Wei Sheng were only eleven years old. But there was no way, Yun Fan couldn't find more trustworthy people.

In addition to the waste insects, there are also some school-age children of newly naturalized residents, a total of more than 100 people.

Yun Fan served as an instructor and trained himself. Cultivation is only one of them, the main ones are scientific and technological knowledge, arithmetic, physics, chemistry, biology, etc.

Yun Fan's method of teaching knowledge is also different from that of the earth, he uses the knowledge of the day to directly transmit the knowledge of the day to the students' brains, and then there are various experiments or calculation exercises.

He is not so eager for knowledge transmitters, because even if knowledge can be transmitted directly to the human brain, the student's understanding still needs a process, just like the exercises and martial arts of martial arts, it is not that you will be proficient if you know it, but you still need to practice hard for a long time. It's not like history or language, etc., just memorize it.

Everything is in order, according to Yun Fan's plan, everyone is as busy as ever.

Within a few months, except for Yun Fan who invited Mingfeng Mingfeng to the repaired Tianding Mountain Courtyard, under the witness of Grandpa Ming, Liu Yong, Liu Sanbraid, Li Shu and others, he respectfully kowtowed to Mingfeng three times, recognized Mingfeng as his father-in-law, and then recognized Mingfeng as his sister-in-law This matter is worth mentioning, there is no major event on Long Guoming's face.

Three months later, Zhang Xun turned around. Half of the population of Changxing Zhangjia moved to the Dragon Kingdom and set up a separate clan. It was settled in the newly built Longmen Town on both sides of the canal.

The original residents of Longmen have also moved inward, and with the resettlement of the population due to the construction of the harbor, the scale of Longmen Town is not what it used to be.

The Dragon Kingdom and the Guizhou Kingdom reached an agreement to build a bridge connecting the two countries at the west and south entrances.

To the east, the roads leading from the towns near the Zan family to Longqu, Ligu and Longsukou also began.

In both cases, Dragon Kingdom provides technical and building material support.

Qingxi, Miao Wen also moved all the aborigines to Nankou Town, and Qingxi will prepare for the construction of an oil refinery. Two months later, Yun Fan prepared to hold a founding ceremony, exposing the Dragon Kingdom as a power entity to the world of Dongzhou.