Wang Zhigan's arrival gave Boss Che a command to start, and his ability to start is not bad.

Before, Wang Zhigan liked DIY and had good hands-on skills. Compared to the boss of Che, he had an understanding of materials. After all, most of the materials were ready-made for DIY. He could not make them with a tree for him to make things. However, when the boss of Che put the wood in front of him, he instantly understood what he needed to do.

In three weeks, four crossbows and more than forty crossbow arrows were made. Of course, these are not the key. The key is that Boss Che and Wang Zhigan jointly designed a set of dynamic pulley sets that can be combined.

Pullwheels are something that I learned in junior high school physics. They are very simple, but the small pulleys can be said to have changed the living conditions of human beings and greatly improved work efficiency.

The pulley set now uses vines as ropes. Li Zhen originally took an hour to move the giant tree from the mountain alone. After the pulley set, it only takes a few minutes.

In addition, Professor Lu discovered an open-pit coal mine in the opposite direction. The planet has a lot of resources. At least, some basic mineral resources can be discovered without deliberately searching for them.

Although there is a coal mine, it is very inconvenient to mine now, because there is no iron tool, so you can only use stone tools to mine it. In a day, four people dug out less than ten kilograms of coal, and they are so tired that they sweat a lot.

According to Li Zhen's expectations for Wang Zhigan in the past, this guy was a soldier, and the guy who was eating should have the steel gun in his hand, so when Wang Zhigan came, he would have brought a Type 95 rifle and some bullets. But what was disappointing was that he didn't know whether it was intentional or why, when Wang Zhigan came over, he brought a long sword, and the weapons in the hands of his comrades who summoned him from behind were also a long sword.

Another most important thing is about the list. If Wang Zhi forgot the list by himself, he can only say that this guy is a pig brain. However, after Hu Zhiqi, Wang Zheng and others summoned by Li Zhen, they forgot the list, Li Zhen believed that this matter must be done by those gods, in order to prevent Li Zhen from cheating.

On earth, all leaders gather together. Now it is not the same. Every leader has to call before meeting. He wishes that the other party would pretend to say hello on the phone immediately. Then the diplomatic departments of both sides agreed on the time and finally made an appointment for the time and place, and then they would send a message. It was wrong, and they would meet.

Now the leaders are basically stationed in China, paying attention to things in the sky 24 hours a day, and the speed of integration between the earth is faster.

"Hey, why are you Chinese, we British, and you have strong hands-on skills!"

The British Prime Minister sighed while smoking a cigarette, always feeling that it was unreliable to hand over the fate of the earth to those people.

The Chinese leader coughed gently: "Li Zhen is a good comrade. His circle of friends is relatively narrow, so he doesn't know any British people. However, we know that the British play an important role in modern technology, but we can't pass on the list!"

When Wang Zhigan forgot the list at first, people on earth scolded Wang Zhigan, and even some radical people took the banner of Wang Zhigan, traitors, etc. Wang Zhigan became synonymous with stupid pigs in an instant. In a week, he couldn't remember the names of several people.

However, as more and more people summoned and could not remember the people who needed to be summoned, everyone understood that this matter was not as simple as it seemed. It was probably the boring group of gods who made new tricks.

"I think we can make people engrave the names of the persons they need to be summoned on the next persons they need to be summoned, and how do you show Li Zhen when you go by?"

At this time, an assistant in the conference room suddenly said something, and it suddenly became very quiet in the originally very noisy hall.

"Yes, this idea is good, this idea is good, by the way, who will Li Zhen summon next time?"

"He is talking about one of his former comrades-in-arms, Wang Dazhuang from the Engineering Company!"

"Okay, I'll find Wang Dazhuang immediately, and at the same time, let Wang Dazhuang endorse the letter quickly!"

The so-called book is not how to develop the Rockets at the beginning. During this period, this group of leaders also understood one thing, that is, to summon people from the past and forget the list, but the content in the book will not be forgotten. For example, after Wang Zhigan left, he also remembered the key elements of developing the Rockets that he memorized before, etc.

But it's useless. Without professional talents, the development of rockets is a huge scientific system, including physics, mathematics, aerospace, power and other majors. The latest deduction result is that it takes about 80 years to build professional talents, but none of the people on Li Zhen's side are related to the aerospace major.

Therefore, while Li Zhen and others from Ming Qixing were working hard to point out the science and technology tree, they also began a new round of research on the earth, opening up a region that specifically gathered a large number of talents to study rockets without using modern technology, and only study rocket majors.

Every week, the successes of phased results will be reported to this group of leaders. These leaders will recite these achievements to the next person to be summoned and tell Li Zhen that in this way, Li Zhen and others can greatly save time for detours.

"Okay, I'll do it now!"

After the meeting on Earth, Li Zhen was also holding a mobilization meeting. The theme of this meeting was very simple. Li Zhen named it, the first battle mobilization meeting of Ming Qixing!

The so-called first battle was when Li Zhen and others needed to occupy the iron ore occupied by a group of barbarians not far away. After ten days of observation, they had determined that their enemy was a tribe, a tribe with a population of 230 to 340 people.

This tribe sells iron ore sanitation. Every week, a group of people exchange these iron ore for other things in primitive ways. A social system of primary social civilization. The only thing that makes Li Zhen and others worry about is whether there is something similar to the country behind this tribe.

"There are more than 230 people in this tribe, but except for some women and children and the elderly, there are about 30 people fighting. Ten of these thirty people are responsible for the safety of the iron ore, and twenty people are also a hunting team. They go out every day when the sun rises and come back before the sun sets. They have a total of fifteen iron tools, all of which are the farthest water iron tools, and there are no long-range attack methods..."
Chapter completed!