After training, Yang Heng was casually searching in the system library, and on this day, suddenly, he found a good thing, that is, the big library system.

This big library system is really a big library system, it's too comprehensive, all kinds of technologies, from discovery, to development, to the extreme, and what mathematics, astronomy, geography, physics, chemistry, medicine, everything, from the zero-level civilization, to the fourth-level civilization All the technical content is included.

There are even printing systems that can print these contents into books as long as there is paper, becoming a real library.

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"Steward, you go and buy all the paper on the market now, and also, let our paper mill also step up papermaking, what, the output is too small, hire more workers, temporarily expand the paper mill by a hundred times, increase the wages of the workers to three times or more, give me to work day and night, at least three months, and then return to normal."

Yang Heng was ruthless, before he left, he must establish this big library, and leave a comprehensive technical data system for Datang, however, he also has a choice to print, for example, as a language book is not needed, this, the Confucian inheritance of the Tang Dynasty itself is enough, as long as it is collected well in the territory of Datang.

There are also astronomy, geography, this, because it is not the astronomy and geography of this star field, Yang Heng only chooses some basic knowledge to introduce to print, such as, astronomy, you can choose what are stars, planets, and various nebulae and black holes, such as specific star fields, I will not introduce them. It seems that there is no introduction to the solar system in it.

And geography. Choose only what various features and landforms. How to draw contour lines, the formation of various rivers and mountains, and all kinds of minerals, even if there are minerals that the earth does not have, it is a big waste of people's time, and if they can't find it, they will be used once they enter the interstellar space. And a map of where it is, then you don't want it.

Physics, mathematics, chemistry, medicine, etc. can all be printed, and naturally, there should be some things that do not need to be recorded, as if the library system itself has deleted these records. For example, the record of a voltmeter is a voltmeter, not a voltmeter. An ampere meter is also not an ampere meter, but an ammeter. In this way, as long as the noun involves the name of a person, a place, or even some other representative name, it is expressed by the essence of such a thing or phenomenon.

Otherwise, come out with an ampere, and introduce who is Ampere, how did he find the current, where do you let people go to find this Ampere out, however, Yang Hengdao doesn't mind letting people place these things on the body of the Tang people, this, can you guide them to make up a little story, what, how did this current be discovered, someone was enjoying the shade under the pear tree, and suddenly a pear fell and hit his head, and then, he discovered the law of gravitation, who is this person, it is General Lao Niu and his grandson, Newton's friends. Therefore, future generations can proudly say that this is the law discovered by the kid surnamed Niu, in Western terms, he is called Donniu.

Well, since the books have begun to be printed, the location of the library, and even the secrecy, still have to be considered, and besides, if there is a war, isn't it easy for foreigners to rob it, and this issue is especially important.

"Your Majesty, the minister wants to ask for a piece of land to build a library, and when the time comes, your Royal Academy can be shared with our Yang Family Academy."

"What kind of land do you want for the library, you can't just build it in your academy, or you can build it in the royal academy." Li Er said very casually.

"Your Majesty, no, the land I want is very big, I not only want to build a library, but also build a full defense system, this area will not be smaller than the area of the academy, I think, it is still next to our Yang family academy to build, and the minister has a fancy to a piece of land on the edge of the academy, where it is surrounded by mountains and rivers, the environment is better, and the best defense system can be built."

"Is it a good thing found on a ship?" Li Er suddenly understood, you must know that this so-called library had not been mentioned by Yang Heng before.

"Yes, Your Majesty, these books are mainly technical, and Confucian books, and even all kinds of paintings, need to be collected by the people, and even let some celebrities make them."

"It's done, I'm ready, you just need to carve out the ground, it's done, and you can go to construction right away." "Your Majesty, the minister has another idea, that is, I want to build it into a strengthened small city, when there is a war, at least 10,000 people can hide in it, and it will be no problem to survive in it for a hundred years."

"This, I am also approved, but there must be a territory of our royal Li family." "Your Majesty, this is naturally possible, our Yang family, and the royal family, I think, we can share it."

This, Yang Heng has thought about it, although there may be conflicts between the two families, if, if you use high technology to recognize people, build two entrances here, one entrance can only enter and exit the people of the Yang family, and even some of the allies selected by the Yang family, and the other entrance is the Li family's entry and exit, naturally, there are also some allies of the Li family, and besides, inside the library, no fights and other things are allowed, according to Datang's technology, it is unattainable, but if you use high technology, There is no need for the technology of a fourth-level civilization, that is, the technology of a first-level civilization is enough, and if the expedition is successful, within a hundred years, this planet will definitely belong to a subsidiary star under Li Second, and at that time, there is no need to worry about some problems.

"Third uncle, immediately withdraw all the railway construction personnel, and within these three months, you must step up the construction of this building." Yang Heng took a few drawings drawn by the spaceship system, and came to find the third uncle, this drawing is a powerful small city-type library that he scanned with the mecha system, let the spaceship system be responsible for the design, and draw.

This small city, the real library occupies a very large area, it is a high-rise building, there are dozens of floors, if you enter, you must enter through the stairs, the first floor, belongs to the public layer, the technology inside has reached the level of Yang Heng's fifties in the last life, and enter the second floor, or even above, that must pass the customs to enter, and it is every time you pass one, enter one, the so-called clearance, it is naturally an exam, that is, the knowledge of the next layer, once the system thinks that you have really mastered the technology of the next layer, Then you can move on to the next level, and in this way, a technical progressive learning level will be formed.

And the other space, there are fields, there are houses to live in, and there is the wall of defense, there are two systems of defense to choose from, one is the strongest defense system at that time, once there is a war, all the people related to the library will enter inside, and the small city will be closed, that is, the people inside can't get out, the people outside can't get in, if there are bribed spies coming in, then, you can lean on it inside, until the war is over, or as a party related to the owner of the library wins, such as, The Li family has won, and the Yang family can only be used as an auxiliary, this is what Li Er requested, if the people of the Yang family become emperors, then, this library will be permanently closed, and if the Li family makes unfavorable moves against the Yang family, the same is true, Yang Heng intends to leave the three satellites in the sky, so that it can contact the library at any time, so that it can analyze some of the following things, Yang Heng's idea is that in the current Yang family, to become an ally of the royal family, until many years later, The Yang family was able to control a planet independently, and at that time, the two sides fell out, and they fell out.

There is also a defense system, which is a high-tech defense system, which belongs to the satellite command, once the external force of the attack is too large, there will be some high-tech weapons for automatic defense, such as, weather control weapons, heavy rain, lightning, and even a hurricane around the city, these, can happen, will make the besiegers think that this small city has the protection of the gods.

"Eldest nephew, has Your Majesty agreed to the construction of this small city?" After the third uncle saw the drawings, he was startled, what kind of phenomenon is this, "Well, I agreed, otherwise, can I let you come to the construction." "Then, I'll rest assured, but, according to the calculation of these materials, its consumption is not less than the cost of building a section of railway for hundreds of miles, this money?" "It's easy to say, you can go to these places to borrow, and the date of repayment is uncertain, I have said it." (To be continued......)