In June of the fifth year of the Ming Dynasty, half a year passed, and the population that migrated to various parts of the north gradually stabilized.

In all counties and towns, people are building houses to live in.

Twenty families in a village, one person helped one person, and all the houses were built, and the ploughing cattle distributed by the imperial court were gradually in place, in order to prevent the ploughing cattle from being stolen and killed, and all the ploughing cattle were registered in the yamen, and no one dared to steal indiscriminately.

In July, the people began to cultivate autumn grain on a large scale, and the livelihood of the people in the north gradually settled down.

Nanjing City, Academy of Science and Technology.

"Your Majesty, printing and papermaking after a year of continuous innovation by the Academy of Science and Technology, finally made significant progress, only a small workshop of 30 people, can print more than 200 books a day, papermaking, the cost of papermaking is only 20% of the original!" Song Yingxing said to Zhu Ci.

"Okay, the Academy of Science and Technology has made great contributions, and the reward is 30,000 taels of silver!" Zhu Ci stumbled with a smile on his face, waved his big hand, and did not hesitate to reward.

"Thank Emperor Longen!" Song Yingxing is also extremely excited, the reward of 30,000 taels is more than 300 taels in the hands of each craftsman who participated in the research and development.

Before the Northern Expedition last year, Zhu Ci ordered the Academy of Science and Technology to focus on research and development, which was to pave the way for the next step of reform and national education.

The so-called education is the country's 100-year plan, and the teaching of the whole people has a major role in the future development of the Ming Dynasty and must be done.

Zhu Ci came to the Academy of Science and Technology to inspect this time, of course, it is impossible to just look at the progress of printing and papermaking, the Institute of Science and Technology is very large, more than 100 projects, and some are also listed as key projects in the research and development of printing and papermaking, and some have made some progress.

"Your Majesty, please come here!" Song Yingxing led the way in front.

Soon, Zhu Ci came to a small R&D workshop of more than 20 people in the south, which was a glass workshop.

Glass is not a rare thing, glass, crystal, are a kind of glass, although not cheap on the market, but can also be bought, the difference is only in the number is not much, and not flat enough, and not large enough, the task of the glass workshop is to develop flat glass and large pieces of glass.

Zhu Ci picked up a piece of round transparent glass about half a centimeter thick and more than ten centimeters in diameter.

"Your Majesty, the mirror you described has also been successfully developed and is ready for mass production." Song Yingxing took out a round glass with a thickness of more than half a centimeter and a diameter of more than ten centimeters from a piece of red cloth, but this piece of glass was different, one side of it was coated with a layer of silver substance.

I saw that when I looked at it from the other side of the mirror, I could see my reflection very clearly, several times clearer than the copper mirror.

Zhu Ciji can foresee how the women of Daming will be crazy about this kind of mirror after it is mass-produced, and it can also be exported overseas, the price is not too high, it is sold for ten taels of silver in Daming, and it is exported overseas for twenty taels of silver, and the amount of gold and silver that can be brought every day will be heavenly.

"Good! Passing on my will, the craftsmen who participated in the research and development of glass were rewarded with three hundred taels of silver. Zhu Ci was overjoyed and once again rewarded a large amount of silver.

"Thank Emperor Longen!" More than 20 craftsmen involved in the research and development in the glass workshop were all excited and bowed.

After visiting the glass workshop, Song Yingxing took Zhu Ci to another R&D workshop.

The research and development here is cement.

Cement, also known as high clay in Daming, is a high-strength natural soil, which can be unearthed at the edge of some special volcanoes, and is extremely sticky.

Although Zhu Cijiao is not very clear about the specific steps, he also knows that the simplest lime and clay are mixed and fired, as long as the ratio of lime and clay is grasped, high-strength cement can be fired.

The research and development of cement has been more than a year, and several major breakthroughs have been made in the middle, and it is believed that it will not be long before cement that meets the bonding standard and can be mass-produced will come out in Daming.

Needless to say, the importance of cement is definitely a revolutionary development in house construction.

In order to motivate the craftsmen of cement research and development, Zhu Ci may make a promise that as long as the cement is formally developed, each craftsman who participates in the research and development will also be able to get a reward of three hundred taels of silver, with the example of printing, papermaking, and glass research and development workshops, and this is the emperor's golden mouth, for the reward of three hundred taels of silver, all the craftsmen involved in the research and development of cement are extremely excited, and they use their strength to step up research and development.

You must know that ten taels of silver is enough for a family of five to live for a year, and a reward of three hundred taels of silver is definitely a lot of income for individuals.

After visiting the cement workshop, Song Yingxing took Zhu Ci to a workshop close to the water flow of the Science and Technology Institute.

This is a hydraulic machine tool research and development workshop.

Hydraulic machine tools, mainly for cutting metal, are needed for processing some special precision metal parts.

With the support of high-strength alloy tools, coupled with the theory and practice, the research and development of hydraulic machine tools has almost reached the last moment, only some small details of the adjustment, hydraulic machine tools will also be successfully developed, then there will be more precision metal parts, whether it is guns or some special machinery research and development, will have a great role in propulsion.

After the hydraulic machine tool, there is one of the most important research and development projects of the Academy of Science and Technology, the steam engine.

The importance of the steam engine is related to the industrial revolution and the future national fortune of the Ming Dynasty.

If you want to talk about the steam engine, it is not very difficult to talk about the initial steam engine technology, after all, the people who invented the steam engine in history only discovered the steam theory, and then developed it personally.

Now the Daming Institute of Science and Technology has already had a theory, coupled with the full support of Zhu Cijiao, the emperor of the Ming Dynasty, supplemented by the support of a large amount of money, under the continuous experiment, the progress is not to say that there are many pieces, but it is also constantly improving, and in less than two years, there have been several major breakthroughs.

"Brother Huang!" A girl in her twenties suddenly stopped from the research and development of the steam engine, and walked towards Zhu Ci, her clothes were stained with some dirt, but her pretty face was full of joy, so that Zhu Ci couldn't help but feel a trace of pity in her heart.

"Xiuxiu!" Zhu Ci replied with a smile.

This girl is Chen Xin's granddaughter Chen Xiuxiu. Although Chen Xiuxiu is also the director of the Firearms Bureau, her insights into science and technology can be called genius, and it is a bit condescending to let her participate in the design of guns, and the importance of the steam engine, Zhu Cicheng let Chen Xiuxiu also participate in it, and most of the matters in the Firearms Bureau are temporarily handed over to Ji Niansheng to deal with.

Back then, after Chen Xin's death, Chen Xiuxiu was entrusted to Zhu Ci to take care of, and Zhu Ci recognized Chen Xiuxiu as his righteous sister and was named the lord of Xiumin, no matter what Chen Xiuxiu thought, since then, Zhu Ci Zhen has really regarded Chen Xiuxiu as his own sister.

"Look at you dirty, go back to rest when you're tired, don't force yourself." Noticing that Chen Xiuxiu was a little tired between her eyebrows, Zhu Ci hesitated and cared.

"I'm not tired, you attach so much importance to this research and development, I have to find a way to get it out early." Chen Xiuxiu said with a smile, looking at Zhu Ci's expression with a trace of admiration that could not be concealed.

Chen Xiuxiu was rejected by Zhu Ci back then, but she still didn't let go of it for more than a year, not only did she never find her in-laws for herself, but even if Zhu Ci personally worried about her marriage, she rejected it, as if she didn't plan to marry in this life.

Zhu Ci awkwardly dodged Chen Xiuxiu's eyes, touched his nose and pretended not to see it.

Anyway, he didn't accept Chen Xiuxiu back then, and now that he recognizes Chen Xiuxiu as his sister-in-law, there is no reason to accept it, he doesn't think he can give Chen Xiuxiu happiness, he believes that one day Chen Xiuxiu will be able to figure it out and find someone who can really care about her wholeheartedly.

Seeing Zhu Cijiao's deliberate dodge, Chen Xiuxiu's expression couldn't help but be full of disappointment, she knew that Zhu Cijiao still couldn't accept her in her heart, as Zhu Cijiao's sister-in-law, she could no longer express her love in front of Zhu Cijiao, she thought, maybe she and him would be like this in their lives.

Some are unwilling.

The heart of a girl, she never turned fourteen years old, the first contact with Zhu Ci Cheng followed Zhu Ci Cheng all the way south, encountered a lot of thrills, Zhu Ci Cheng turned danger into danger again and again, decisiveness and iron blood were seen by her one by one, so many years have passed, it has long been deeply rooted in her heart, Zhu Ci hesitated not to know, unless there is a better man than him in front of Chen Xiuxiu, Chen Xiuxiu is unlikely to change, her love for Zhu Ci Cheng may also go over time, deeper and deeper, more and more unable to extricate herself, Zhu Ci didn't realize this, and by the time he realized it one day, it would have been many years later.

After some visits and encouragement, Zhu Ci stumbled back to the palace.

The first thing Zhu Ci did after returning to the palace was to allocate funds for the construction of a printing workshop and a paper workshop, to print a large number of books that had been written earlier, and to build a glass workshop to produce a large number of glass products such as mirrors, so as to prepare for the sale of a large number of them and export them overseas.