Datang: Time travel in two months, wait online, hurry up!

"The processing and preparation of feed, clothing cutting, basic knowledge of lathe and fitter welding, brick and tile sintering, small energy utilization, etc."

If the first two books are about medicine and military affairs, then this one is about basic necessities of life.

The knowledge of rural sideline production includes fruit tree cultivation techniques, from fertilization to watering, to orchard cultivation, flower thinning and fruit thinning, fruit tree pruning methods, tree protection and other knowledge of the whole process.

Even a novice who has never planted fruit trees will know how to plant fruit trees after reading it.

As for a series of breeding such as fish farming, chicken raising, duck raising, etc., there are scientific and detailed farming methods.

The subsequent grain processing includes the production and processing methods of various pasta, sugar, and wine, which are extremely detailed.

Of course, what Li Ke cares most about is the basic knowledge of turning, fitter, welding and so on.

You must know that after he travels to the past, he will focus on the development of industry, and these skills are the most important part of industry.

He can use the knowledge in this book to quickly cultivate a group of skilled technicians, so that when he develops industries, these technicians will be of great help.

"The dry goods of these three books are more than one!"

Li Ke is very satisfied with the content of these three books.

Netizens are really right, these three books can really be called the three must-have divine books for time travelers.

Even if you don't learn anything else, just memorizing the content of these three books is enough to travel through the past.

He opened his notebook, picked up a pen and wrote down the names of the three books.

Next, he will specifically read these three books in their entirety and write them down vividly.

"Ding dong~"

A reminder sounded in the background, and someone replied.

"Good guy, I just took a look at the contents of these three books, I'm stupid!"

"If you finish reading these three books, wouldn't it be enough to travel back in time and rebel?"

"Although it seems a bit backward now, it is definitely a divine book in ancient times!"

Seeing these comments, Li Ke couldn't help but smile.

These people must be the same as him. They didn't know about this book before, and they searched it after reading the reply, and their reaction after reading it was also the same as him.

"The landlord can improve the four great inventions. Although they already existed in the Tang Dynasty, the technology is obviously not as advanced as modern ones."

"It is definitely unrealistic to optimize it to modern times, but as long as it is optimized to the Ming and Qing Dynasties, it will be a huge improvement."

At this time, someone proposed to ask Li Ke to improve the four major inventions and optimize them to the technical level of the Ming and Qing Dynasties.

Seeing this, Li Ke touched his chin, and a thoughtful look flashed in his eyes.

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Chapter 6 Let the world's scholars return to their hearts!

The significance of the four ancient Chinese inventions is very far-reaching.

It made great contributions to the development of science and technology at that time, and it continues to this day.

The emergence of papermaking has completely changed the way people record words.

It is no longer necessary to use a knife to carve strokes on stone or bamboo slices, but to write with a pen lightly to record words.

Moreover, the paper is light and thin, small in size, and records a lot of content, thereby speeding up the dissemination of words and culture, so that more people can read and write and learn culture.

So papermaking is a very great invention.

But in the early days, the technology of papermaking was not as advanced as it is in modern times, and the paper produced was not only expensive, but also of very poor quality.

This undoubtedly greatly delayed the role of paper at that time and wasted a lot of time.

If he could optimize the papermaking technology during the Zhenguan period of the Tang Dynasty and produce low-cost, high-quality paper in advance, it will undoubtedly greatly speed up the application of paper and promote cultural development faster.

"And printing."

Printing is also one of the four great inventions. The printing technology at that time was very backward, and block printing was used, and the quality of the block was also very poor.

Block printing, as the name suggests, is to engrave the entire page of the text to be printed in advance, and then print it one by one.

Every time a brand new content is printed, a set of engravings must be carved out according to the content, which is time-consuming and labor-intensive.

If you want to carve a book, it will take a lot of time and manpower.

Not to mention that the quality of the engraving is still poor, and sometimes the engraving that took a lot of time to engrave wears out after only a few printings.

The engraved content will also be blurred, and there may even be a lack of strokes.

Therefore, printing books at that time was still a time-consuming and expensive matter, which also led to many times people abandoned printing, and instead had people copy word by word from the book to achieve the purpose of rubbing books.

This has also led to the extremely high prices of ancient books, and poor students have no chance to read at all.

If he optimizes printing during the Zhenguan period of the Tang Dynasty, and develops movable type printing and better engraving, it will greatly reduce the cost of book printing.

And it can greatly improve the efficiency of printing books, allowing more people to have the opportunity to read.

Once he enables countless poor students to study, his status in the hearts of scholars all over the world may be close to that of Confucius!

If countless scholars in the world respect him, then he can't think of a reason why he should not be emperor.

"The strategic significance of papermaking and printing is too important to optimize!"

Li Ke was deeply aware of the influence of paper and printing on ancient scholars.

It's not just him, many people in the post saw that someone proposed to optimize the four great inventions, and they also realized this.

"The ancients paid great attention to kindness, and the kindness of a drop of water gushed out to the spring. If the landlord can make a large number of poor students afford to study, it will be a kindness for these scholars to preach and receive karma!"

"For the grace of preaching and accepting karma, the host is the great benefactor of these scholars, and will definitely get their full support!"

"Yes, as long as the landlord makes books affordable for more people, the more supporters the landlord will have among the scholars!"

"As long as you master the scholars in the world, the world will naturally be in the hands of the landlord."

"If this is the case, then Li Shimin has no choice but to pass it on to the landlord, otherwise the landlord will overthrow Datang and establish a new dynasty without any difficulty."

"The optimization and improvement of papermaking and printing are too important, and the strategic significance is invincible!"

"At the beginning of the Tang Dynasty, the influence of the aristocratic family was still great, and the five surnames Qiwang was the leader among them. Books and scholars were all in the hands of the five surnames Qiwang."

"The five surnames and Qiwang are really crazy. Even the prince can't marry the daughter of the five surnames Qiwang, and the emperor doesn't give him face."

"Five surnames and seven hopes have crazy capital. Who makes people have too many books? The emperor has to rely on them to govern the country and stabilize the world."

"The landlord can rely on the improved and optimized papermaking and printing techniques, while cultivating and attracting a large number of poor students, while suppressing the five surnames and seven Wang!"

......

Throughout the dynasties, military commanders have relied on conquering the world, and literati have governed the world.

Where do literati come from?

From the perspective of five surnames and seven.

The five surnames and Qiwang produced an unknown number of court officials. Take the Cui family, one of the five surnames and Qiwang, as an example. In the Tang Dynasty alone, there were 29 prime ministers!

There are countless senior members of other ranks.

This is why they dare to look down on the Li royal family!

The reason for this is that the technology of papermaking and printing was backward at that time, resulting in the scarcity and high price of books, which led them to form a monopoly on books and words.

Students from poor families can't afford to read books, and those who want to study have to become people with five surnames and seven expectations.

As a result, an aristocratic family headed by the five surnames and Qiwang was formed, so that even an emperor like Li Shimin had nothing to do with them.

"It may be a big problem for Li Shimin, but for me, it's easy to sanction the five surnames and seven wangs." Li Ke's eyes were full of confidence.

Nothing more than three steps.

First, first break the monopoly of the Five Surnames and Seven Wangs on books.

Through the improvement and optimization of papermaking and printing technology, a large number of books were printed first, so that Wu Xing Qi Wang lost his monopoly on books and cut off Wu Xing Qi Wang's hand.

Second, break the monopoly of the Five Surnames and Seven Wangs on scholars.

In the first step, a large number of books have been printed. Using these books, more poor students who do not belong to the Five Surnames and Seven Wangs and have nothing to do with the Five Surnames and Seven Wangs can have the opportunity to study, thus breaking the monopoly of the Five Surnames and Seven Wangs on scholars.

This cut off Wu Xing Qiwang's other hand.

Third, through the first and second steps at this time, the two most powerful hands of Wuxing Qiwang have been cut off, greatly reducing the influence of Wuxing Qiwang.

The final details of the Five Surnames and Seven Wangs are the high-ranking ministers in the court. At this time, the emperor Li Shimin is needed to take action.

Losing the monopoly on books and scholars, ministers with five surnames and seven wangs are no different from other ministers. Of course, the emperor Li Shimin has no worries when he takes action.

After these three steps, the Five Surnames and Seven Wangs can be directly swept into the garbage dump of the times.

"This is the power of advanced technology!"

A flash of wisdom flashed in Li Ke's eyes, and his thoughts became more firm in his heart.

Use the remaining time to learn as much knowledge and technology as possible!

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Chapter 7 With technology, you can really do whatever you want!

As an emperor through the ages, Li Shimin couldn't solve the problem of five surnames and seven hopes.

And he, an ordinary former librarian in modern times, can easily think of a solution to the five surnames and seven hopes?

Is it because he is smarter than Li Shimin?

That's clearly not.

He is not so arrogant yet, thinking that he can be compared with an emperor who fought all the way from the end of the Sui Dynasty, won most of the country for the Tang Dynasty, experienced killing brothers and brothers, and forced his father to abdicate.

There is only one thing he is ahead of Li Shimin, and that is the broad horizons of future generations and the knowledge stored in his brain!

Doesn't Li Shimin know that with better and cheaper paper and faster and more convenient printing technology, five surnames and seven hopes can be solved?

He definitely knew, but he knew it was useless, because at that time, the technology just couldn't reach it!

Make bricks without straw!

But Li Ke can easily do things that Li Shimin can't do without racking his brains.

How else can we say that science and technology are primary productive forces?

With technology, you can really do whatever you want!

......

Everyone's discussion is still going on.

"Gunpowder, one of the four great inventions, should be familiar to the landlord. If this is not improved, many of the landlord's plans will not be able to be implemented."

"A big boss has already mentioned gunpowder in terms of guns and guns. This thing must be improved. As far as the gunpowder from the Zhenguan period of the Tang Dynasty is concerned, it is okay to set off fireworks. Let's forget about it for war."

"Gunpowder, the earliest black powder is the traditional gunpowder made of potassium nitrate, sulfur and carbon in proportion."

"Then there is the nitrocellulose gunpowder at the back. The cotton is soaked in nitric acid and nitrated, then dissolved in ethanol, dried and hardened, and it becomes smokeless gunpowder."

"This is just a single-base gunpowder. Add 30% nitroglycerin to the nitrocellulose, and it becomes a double-base gunpowder, which is even more powerful."

"On the basis of double-base gunpowder, reduce the content of nitrocellulose, and add 20% of nitroguanidine to become triple-base gunpowder, and the power is once again enhanced."

"Single-base gunpowder is generally used to launch bullets, and double-base and triple-base gunpowder is mainly used to launch projectiles."

"Fuck, the upstairs is so professional!"

"Zhihu still has real bosses!"

"Good guy, does this count as leaking the secret formula?"

"This is the hammer's secret formula. Doesn't Baidu Encyclopedia have a hand? It's clearly written on it!"

"Oh, that's fine."

......