The ancients were rich in feelings.

After all, it is difficult to have emotional fluctuations in the afterlife.

In later generations, there are too many means to connect with people before, whether it is WeChat or telephone, and even video and voice, not to mention high-speed rail and airplanes.

Because of this, although people are getting closer and closer, it is precisely because of the proximity that there can be more communication, and there is just less cherishment.

For the ancients, a parting meant that there was no news, and they were forgotten in the rivers and lakes from then on. One wave of the hand may be a lifetime of difficult reunion. Even if you read a letter, it is very likely that you will not know when you will receive the second letter.

And people's lifespan is often short, so when they occasionally say to each other to cherish, they can't help but wet their clothes with tears!

Because behind the word cherish, there is a high probability that a cold will mean death, and an accident has been separated since then.

At this time, Li Yifu's tears flowed down, which was a gratitude to Chen Zhengtai for his kindness.

It is precisely because it is not easy for people to meet and know each other, because people in this era often identify with each other and acquaintance as fate, because there is fate, it is to know each other, but also to get acquainted, and finally be discovered talent, and finally have the grace of acquaintance.

For the people of this era, the so-called grace of knowing is a great kindness.

Li Yifu even often thinks that if there is no Chen Zhengtai, where will he wander at this time?

When I came to Chang'an, if I didn't have the protection of my teacher, maybe I would have frozen to death in the cold house at this moment, or I would have died of illness in the inn, even if I was lucky, even if I could really take the test and become a petty official, but what about it?

Today's Li Yifu is more and more aware that he is now his best result.

There are many disciples here, although they are resentful of him, but every time they see him, they can also call him Mr. respectfully.

He is a poor family, but this university hall is another belonging to himself, here, he is not only a disciple of others, but also the patriarch of the students, watching the students grow one by one, which makes him feel relieved spontaneously.

He now has no worries about food and clothing, shoulders heavy responsibilities, and has a good and valuable life, which is a great thing to be thankful about.

In school, he fell ill by chance, and several senior brothers also took turns to take care of him, and even the disciples who had a grudge against him on weekdays would come to visit him one after another, and they were sincerely concerned about him.

Thinking of this, he couldn't help crying and laughing, and he was full of emotion.

Seeing him like this, Hao Chujun couldn't help but be moved, pursed his lips, and said with slightly red eyes: "I should do my best while I am studying." On the teacher's side, how can he be humiliated by Wu Youjing and his ilk? If we are really humiliated, you and I will no longer have the face to teach here, but I am afraid that we can only apologize for our sins with death. ”

Li Yifu bowed his head, his eyes showed a touch of firmness, and said: "I prepared three feet of white silk for myself, and when I really got there, I had to leave a letter and say goodbye to my benefactor." ”

The others were silent.

……

The third uncle and other elders of the Chen family began to operate one after another, and after going through a long and cumbersome etiquette, the palace issued a decree and chose a wedding date.

The date of the wedding was chosen on July 19.

Apparently it was a good day.

Chen Zhengtai was the last to learn that he was going to be the groom that day, and for a while, he was deeply touched!

Princess Sui'an, he really likes it, people have a good golden branch and jade leaves, and he has hooked up with others for so long, if he doesn't marry, then it's really better than a pig and a dog.

It's just that I suddenly thought that I really wanted to start a family, but my heart was in chaos.

Now he has slowly integrated into this world. substituted for the ancients, and gradually had the same emotions as the ancients.

Because of this, he knows that the marriage of this era is completely different from that of later generations, and that the men of this era, once they get married, it means that they will create many people in the future, and reproduction means that they must create a family business, protect their offspring, and truly bear the honor and disgrace of the entire family.

From now on, I will wave goodbye to the unscrupulous young man in the past and become a real man!

From now on, many will be on their own.

This is called responsibility.

Seeing that Chen Zhengtai was silent, the third uncle couldn't help but say, "What, don't you like Zhengtai?" That's a great thing. ”

"It's not that I don't like it." Chen Zhengtai said: "It's just that the mood is a little complicated. ”

The third uncle stroked his beard and couldn't help shaking his head and smiling bitterly: "Zhengtai, the old man knows that you are not a mortal at a glance, and you look like this today, and it is exactly the same as the old man said." If it were someone else, I would have been so happy that I didn't know the southeast and northwest, and only you could still maintain the style of a general, worthy of being the tiger of my Chen family. ”

Chen Zhengtai: "......"

I have to say, the third uncle is still the third uncle!

The third uncle sighed again: "It's just a pity that my grandson Zhengde is far worse than you, he is still confused, he has no opinions, he only knows how to eat in the ground, and he doesn't know ...... Will there be any woman who can look down on him, he is not a concubine, he is wooden, and now he is dirty and smelly......"

The third uncle shook his head, holding his breath in his heart, they are all descendants of the Chen family, why is there such a big difference?

The third uncle actually feels sorry for his grandson, after all, this is his son's flesh and blood, but sometimes when he thinks of Chen Zhengde's wooden appearance, he can't help but feel uncomfortable!

Chen Zhengtai heard the third uncle mention Chen Zhengde, and couldn't help but think of something, and then said: "Oh, yes, there is one thing, I almost forgot, this time Zhengde planted food in the desert, a great achievement, Your Majesty has already made a decree, and he is the county prince." I was so busy these two days that I forgot about it for a while. ”

Third Uncle: "......"

County ......

In fact, when it came to the Zhenguan period, with the recuperation, the credit was getting less and less, so the knighthood became rare, and this county duke was not a small title...... This is a real and prestigious title.

It's just that...... Almost forgot?

Looking at Zhengtai's understatement, he doesn't take it seriously at all.

But if you think about it carefully, maybe Chen Zhengtai really won't take it seriously, and in his mind, the county magistrate is not a big deal.

But when the third uncle heard this, he thought he had heard it wrong, and his eyes widened and said, "Really? ”

"How can this be fake?" Chen Zhengtai looked very serious: "Your Majesty has opened the golden mouth, how can you regret it?" It's just that the Ministry of Rites will be slower after all, and I don't know how long it will be delayed! ”

The third uncle was stunned for a moment, then snapped, his body softened, and he sat on the Hu chair!

Then, he stretched his neck, and suddenly felt that his waist was also stiff: "This stupid boy...... This silly boy...... Zhengtai, you wait, the old man will go out first and gather the people from all over the clan to discuss the matter of worshipping the ancestors in the summer. ”

Saying that, he ran away in a puff of smoke, how could he still look frightened and powerless just now?

Chen Zhengtai: "......"

Didn't this ancestor just be sacrificed? Still coming?

It's just that the third uncle is very athletic, and he is old, but he walks extremely fast, and Chen Zhengtai doesn't even have time to call him!

What's more, the third uncle worked hard for the family on the fair day, and seeing the third uncle so happy, Chen Zhengtai couldn't help but feel good!

However, now that the problem of food has been solved, farming in this desert still needs to be careful.

In this era, because of the abundant rain, the ecology of the desert is not bad. For example, the reason why the current Tibet was able to grow in the Tang Dynasty was because the Hetao area was abundant in rain at this time, so there was a bumper grain production.

In this grassland, the same is probably true.

But even so, it is still necessary to be restrained, anyway, there is land in the desert, so it is still necessary to formulate a rule when reclaiming, and it is best to adopt the strategy of fallow and rotational tillage.

Anyway, the desert land is vast, the endless grassland, the theoretical cultivated land area, is actually many times the size of the Guannai, but the population is scarce, as long as the area of cultivated land is controlled, even if the current Han people increase by a hundred times, it can be fed.

He roughly devised a fallow strategy and sent it out.

Besides......

Chen Zhengtai drew a rough drawing, based on memory, made some changes to the current windmill, and then handed it over to the craftsmen to try to see the effect first.

In the desert, the windmill is definitely a sharp weapon, after all, the wind in the desert is strong, and it is different from the Guannai.

There were windmills in ancient China, but because there were countless mountains and mountains in the pass, blocking the strong winds, windmills were not popular in ancient times.

On the contrary, the ancestors were more interested in the waterwheel, and used the water flow to generate power, which greatly saved manpower.

When it comes to the desert environment, it is completely different, there is no shortage of wind in that place, after all, it is an endless grassland, as long as there is wind, it means that you can have a steady stream of power.

This is scarce in Kannai.

The disadvantage of windmills compared to waterwheels is that most windmills are not stable, after all, the size of the wind depends on God's reward.

The waterwheel, on the other hand, is more sustained. After all, the water is endless.

Of course, the waterwheel has to rely on water after all, so the regional requirements are relatively strong. Windmills are different, find an open place, you can build it, and the most important thing in the desert is the wind.

In this era when there is no steam engine and internal combustion engine, the use of wind energy has led to great development, not only with the help of wind energy, to build mills, and even to irrigate, if some modifications are carried out, it can even be used in the production of workshops.

At this time, it was still Datang, and the windmill was still in the simplest marquee period, and the efficiency of the windmill was very low, but it had reached a barely usable level, and it was used as a mill work, but the use of other aspects was a little stretched.

Chen Zhengtai's sketch depicts the structure of a vertical windmill that began to appear in the Song Dynasty.

This structure is composed of flat gears, vertical shafts and sails for rotary motion, and the rotating axle drives the mill or waterwheel to realize the meshing and separation of the gears, and plays the role of a clutch, thus generating wind force.

The advantage of it is that it is many times more powerful than the windmill of the past, and it produces more power.

The disadvantage is that it is large in size and covers an area of more, so although it began to appear in the Song Dynasty, the Central Plains region is actually facing the dilemma of more people and less land most of the time, since there is so much cheap labor, and the price of land remains high, what is the use of such a windmill? As a result, it is not really generalized.

But if you put it in the grassland, this shortcoming of it will not be a problem.

Because the difference between the grassland and the Central Plains is that the grassland is less people and more land, because there is less manpower, so the price of labor remains high, and because the land is vast, so the area is not a problem at all.

It's just that Chen Zhengtai doesn't think he's professional in this aspect, and he only understands the principle, so he only barely draws the structural drawing, and as for the rest, it can only be handed over to the craftsmen for trial production and improvement again and again!

How to generate more power with the least amount of wind, which is a problem of improving the structure and changing the materials.

Of course, Chen Zhengtai even thought about using rolling bearings made of steel to solve this problem.

This rolling bearing is a real treasure, but I don't know if the steel workshop can make such a delicate thing!

Once it can be made, then many things in this desert can be applied in the future, and this windmill alone can be used, which can achieve twice the result with half the effort.

It's just that this thing has relatively high requirements for accuracy, and whether it succeeds or not, it still depends on how far the blacksmiths can go.

However, Chen Zhengtai's biggest hobby is to draw all kinds of strange drawings, and then let people hand them over to the craftsmen everywhere!

Anyway, the Chen family is rich and can afford to raise a group of craftsmen who have nothing to do when they are well fed and have nothing to do, specializing in the production of 'waste materials'!

It is not a bad thing to let this group of craftsmen with some culture and exquisite skills temporarily break away from production and specialize in studying these strange things, which has to look at things with a long-term vision, Chen Zhengtai believes that continuous research is definitely beneficial to the creation of the future!

Of course, Chen Zhengtai values the rolling bearing thing the most.

The structure of rolling bearings is very simple, and its biggest function is to reduce friction losses.

Even in later generations, such simple structures were used on a large scale in industrial production.

The crux of the matter lies in precision.

Since Chen Zhengtai, the Chen family, values it, the hundreds of skilled craftsmen in the craftsman's room have begun to get busy!

They are in a daze with drawings all day long, sometimes trial production, and then continuous improvement, they have accumulated a lot of experience in making other 'gadgets' before, in fact, it is not difficult to make this thing, but the precision is lower, and different steels, the strength is also different, and it needs to continue to explore.

So every once in a while, they would send some new trial parts, and Chen Zhengtai was probably still satisfied with them.

Of course...... Chen Zhengtai still hopes that they can make better production, so he keeps quiet.

The head of the Chen family didn't say anything after receiving the trial parts, which made the craftsman's workshop even more panicked, because no one knew whether this food and clothing parent was happy or angry!

So they simply set up a special group to tackle key problems and continue to conduct in-depth research.

Time passed, and in the blink of an eye, it was June, and the big exam was imminent.

After thirty-four mock exams...... The real exam was finally placed in front of the people in the Erpigou University Hall.

Chen Zhengtai temporarily eliminated distracting thoughts and appeared in the school in a hurry!

Although on weekdays, he, the master, always sees the head and the tail, but at this time, it is still necessary to show up to express encouragement.

After some encouragement, the students left the university hall in high spirits and with great confidence.

The entire Chang'an City has long been noisy.

This township test, the movement is very great, after all, after the township test, it is to lift people.

In Datang, lifting people not only has fame, but also is equivalent to stepping into officialdom with one foot, at least ...... He is already qualified to be an official.

For many, this means a lot.

What's more, there seems to be a rumor in the market that Wu Youjing, a Confucian with an increasingly prominent reputation, takes the Xiucai to study all day long, and his people are profoundly knowledgeable, and the Xiucai have benefited a lot.

If there is competition, people can have more expectations, and it is precisely because of this expectation that many people are looking forward to this exam.

…………

Thank you Cai Shuning for becoming the fifteenth leader of this book, thank you.