In Shangshu Province, the children's laughter is still the same, and it has been idle recently, and the princess and the prince are playing with rattan balls.

Zhang Yang finished writing his reply to the Hexi Corridor, put down the pen in his hand, and raised his eyes to look at the prince,

"Does His Royal Highness the Crown Prince have other ideas about the policy of official learning?" Li Chengqian nodded and sat down,

"From the experience of opening a bookstore in previous dynasties, Lone has selected some better experience methods, as well as relevant classics on the establishment of Taixue." Taixue was founded for a long time, and at this moment, Datang continued the establishment of Guozijian, and included Taixue, Guozixue, calligraphy, and law.

Most of the Jinshi and those who enjoy the literary name are from the two prison students. In the Han Dynasty, a sentence wished His Majesty to promote Taixue and place the Master to raise the people of the world, so that Taixue reached its peak in the Han Dynasty There were more than 30,000 people.

After the world was pacified, the emperor would create a training place similar to Taixue in the selection of officials.

Li Chengqian's policy of official learning is mostly based on the experience gained from these aspects. Zhang Yang took the scroll handed by the prince and opened it to look at the contents,

"What does His Royal Highness the Crown Prince think is the point of our teaching?"

"Let there be a lot of scholars in the court, and let there be more people in the imperial examination." Li Chengqian finished speaking without thinking, but when he saw Zhang Yang smiling, he was curious: "Is there something wrong?" Zhang Yang shook his head and said, "His Royal Highness the Crown Prince is really real." Li Chengqian was surprised: "Shouldn't it be like this?" Zhang Yang put his hands on his knees,

"Teaching is not just for the imperial examination, it's a big cause."

"Big business?"

"Yes, big business!" Picking up the bamboo tube water cup he carried with him, Zhang Yang drank a sip of hot water, and then covered it.

"If the teaching is only for the imperial examination, the utilitarian nature is too strong, resulting in students only studying the imperial examination, but not knowing the agriculture and life."

"His Royal Highness the Crown Prince thinks how many people in a study house can embark on the road of the imperial examination?" Li Chengqian was speechless for a while, and he didn't know how to refute.

Zhang Yang said with a smile: "I conservatively estimate that only three or two out of a hundred students can go to the imperial examination, and these three or two people will have to face thousands of troops to cross the single-plank bridge, and they will have to squeeze their heads to stand out from the students from all over the world, so that less than 100 of the tens of thousands of students who participate in the imperial examination can stand out." ”

"That's true." Li Chengqian nodded in agreement.

"Therefore, I think that the meaning of teaching should be to educate people, and the imperial examination is secondary." Zhang Yang sighed,

"Let students adapt to this era, and let them know the changes that will occur in this era in the future, and in the process of teaching, it is necessary for students to understand how to behave in the world, persuade them to go on the right path, be a good person, and have a better life in the future."

"Educating people is a beacon, so that thousands of people know what Datang is like, what the world is like, this is what students in remote places need more, broaden their horizons, let them have the idea of daring to go out of the vast Central Plains, and their direction is the direction of our teaching."

"Students should develop morally, intellectually, physically, and aesthetically in an all-round way, they can also work in the fields, they are healthy, they can pick up hoes to farm, they can also pick up books and talk to people about spring and autumn, and they can live freely." Li Chengqian was silent for a long time,

"Before...... It's lonely and narrow-minded. Zhang Yang said with a smile: "Your Royal Highness the Prince, don't be surprised, in fact, the teacher of the minister back then did the same, he brought back the students who made mistakes, let them continue to study, and let them return to the right path, which is the most important thing." Li Chengqian took a deep breath,

"Lone understands that teaching and educating people is the right way in the world, and the imperial examination is secondary."

"That's it, in the future, I want to open a technology-related academy to teach craftsmanship-related, technology-related, or overcome technical problems, so that Datang has more talents related to technology." Zhang Yang thought,

"I call this a technical college, so that the children of Datang will have a place to learn technology in the future, and it can also allow the children to learn a skill that they rely on for survival." Li Chengqian admired,

"Zhang Shilang has always been a visionary, and he is looking forward to having such an academy."

"It's all for later, we'll talk about it next time." Zhang Yang opened Li Chengqian's charter,

"His Royal Highness the Crown Prince said that a master is sent to a place, I don't think it's enough."

"How many people do you need?" Datang is no better than later generations. Now that the Tang Dynasty has been established, there are even people in more remote places who don't know what the surname of the owner of this country is.

Not to mention sending a master casually, when he went to the local area, he said that he was here to teach, and hoped that the villagers in the local area would cooperate.

This is unrealistic and prone to local exclusion. Zhang Yang continued,

"We can send an official to the place in the name of inspecting the place and checking the acres of land, and let the master accompany him, or we can send three or two officials to lobby, so that the local village sages can also respond."

"First, you can check the acres of households, and second, by the way, open an official school, which is indeed a good way, killing two birds with one stone." Li Chengqian nodded heavily, feeling that Datang's Jiangshan Sheji was a little more stable.

"If you just send a master to teach, the local county may not be able to take care of it, let alone how the local villagers should cooperate...... "The sky is overcast again, this year's winter is long, the weather is changeable, the weather is fine in the morning, and in the afternoon, the cold wind is freezing to the bone, and the snow that has melted half with water droplets begins to slowly solidify.

In Shangshu Province, Zhang Yang told His Royal Highness the Crown Prince about the specific steps of the official school, which increased from 3,000 yuan at the beginning to 18,000 yuan a year.

Again, it's a huge expense. In this conversation, Li Chengqian recorded all the key points, and when he walked out of Shangshu Province again, he turned his head to look at Li Anyan, who was standing straight at the door.

"His Royal Highness the Crown Prince, do you need to take him down now?" With such words again, Li Chengqian tapped his forehead with the scroll in distress,

"You go back to the East Palace with Gu."

"Whoa." After sending the prince away, Zhang Yang took out a boiled tea egg from the pot, opened the eggshell and took a bite, which tasted very good.

Then I fished out a few and brought them back to my daughter-in-law and two little girls to eat.

"His Royal Highness the King of Jin, the tea eggs can be eaten."

"It's coming!" Li Zhi hurried over. Zhang Yang wrapped the tea egg in a cloth towel, put it in his arms, and left Shangshu Province quickly.

At night, it was snowing heavily. At home, the family sat around eating hot pot. Li Yue picked up a spinach and ate it, still holding a scroll in his hand.

It is the rule at home that you can't talk or do anything else while eating at home. The two girls have been abiding by the house rules, but the teacher can.

Family laws and rules don't seem to have an effect on the teacher, and the master doesn't say anything. Xiao Wu and Xu Hui continued to eat their meals.

After dinner, Zhang Yang counted the current accounts of the DPRK and China, and allocated another 10,000 guan in the Hexi Corridor, only to find that the silver money was not enough, and there was still a vacancy of 50,000 guan in the last year's Yulu.

If Xue Yantuo can recover the cost in the first battle, he can also have a surplus, and the minerals there can be transported to make up for the vacancy, and Lishan also lacks coal mines.

It's okay to turn around. The matter of the old grain was only arranged in the autumn, and it has not yet achieved results. The little bear was lying at his feet and snoring, Zhang Yang rested his washed feet on the bear's back, and looked at the arrangements for the imperial examination in Zhongshu Province for the coming year.

Li Yue said in a low voice after washing: "Husband, it's time to rest." ”

"Well, rest." At night, the cold wind was calling again, and a whisper came from inside the house. Li Yue said in a low voice: "This new pajamas are not easy to wear at all. ”

"Why can't you wear it......?"

"Tight ......"

"Really? Let me see. ”

"Don't make trouble, husband!" The next morning, Li Yue took away her husband's claws, got up and combed it. Zhang Yang sat up sleepily,

"Is there anything left to do today?" Looking back, seeing her husband's lazy expression, she glared at her,

"Today, a batch of old grain will be transported to Chang'an City, and the husband still needs to arrange for people to be sent to the Hexi Corridor."

"Yes, that's it." Zhang Yang got up and put on his coat, and rubbed his daughter-in-law's long hair that he had just combed again.

Under her annoyed eyes, Zhang Yang walked out of the room satisfied. When he opened the door, he saw a thick layer of snow, and the bear immediately rushed out and jumped happily in the snow, which was still falling.

After a brief wash, I cooked porridge with last night's leftovers, and went out early after eating a meal.

At this moment, outside the city of Chang'an, a team of officers and soldiers escorted grain and grass on the city wall, and the carriages were connected together, and there were nearly 100 carriages in a long procession.

Cen Wenwen is being approved with someone. Seeing this, Zhang Yang hurriedly stepped forward,

"Huh? Brother Wen so early? Cen Wenwen snorted coldly,

"The official arrived before dawn, and now it has been checked, and I ask Zhang Shilang to take a look." Zhang Yang opened the account book and glanced at the number, this is the first batch of official grain in Taiyuan, five thousand stones.

"When can I leave for the Hexi Corridor?"

"Right now." Cen Wenwen carried his hands on his back,

"Does Zhang Shilang need to weigh again?" Zhang Yang put away the account book and said with a smile: "Brother Wen is still very relieved to do things. "Then I told the officers and soldiers who escorted them a few words, let them rest for a day, and then set off to escort them to the Hexi Corridor.

Cen Wenwen said again: "I also ask Zhang Shilang to go to Zhongshu Province with Xia Guan to return to the province." ”

"Brother Wen, please first." The two walked back to Chang'an City together, and Cen Wenwen glanced at Zhang Yang beside him from time to time,

"Why don't you wear an official hat and no official boots?"

"I woke up too late, and I forgot when I went out in a hurry." Zhang Yang looked down at his cloth shoes.

"It's just a matter of resting now, if it's usually early, Zhang Shilang can't be like this."

"Brother Wen, that's right." The whole court is preparing for the imperial examination in the coming year, and the emperor also has to pay attention to the people's livelihood, and these days the heavy snow sometimes falls and sometimes stops.

It's not bad, but it's so cold that you can't help but shiver. Under the escort of Li Junxian, Li Shimin took Li Lizhi and Li Zhi to walk on the edge of the Jing River, and the sisters and brothers were so cold that their cheeks were red.

Even if you put your hand out of your sleeve, it's a kind of torture, and at this time, I really want to go back to the palace, go to Shangshu Province to sit by the stove to keep warm, and I can boil tea and eggs to eat.

Came to the upper reaches of the Jing River, where there was originally a sluice. When the water flow is high, the water will be stored, and when there is a drought, the sluice gate can be opened to release water to irrigate the fields.

Because of the heavy snow these days, the sunny weather in the first two days has melted a lot of snow. This has also led to greater flow in the river.

Yan Liben stepped forward to report,

"Your Majesty, the minister will take people to repair, but it is the season when the water flow is larger, even if the sluice gate is reinstalled at this moment, it may not be stable, once the water upstream comes down, it will definitely break the sluice gate." The cold wind fell with snowflakes, the river did not freeze, and the water was turbulent.

Li Lizhi looked at part of the gate that was salvaged, and she was curious: "Is this gate all like this?" Yan Liben nodded,

"Back to Her Royal Highness the Princess, it's just an ordinary sluice, and this style is mostly used to facilitate the opening of the sluice gate and release water." Li Li said with a smile,

"Childish, do you remember what your brother-in-law taught you about the tip of the ship?" Li Zhi nodded,

"Of course I remember, my brother-in-law also said that the relationship between the stressed area was because of this." As soon as the words passed through his mind, Li Zhi suddenly remembered,

"Father, in fact, my son-in-law has heard the relevant principle from my brother-in-law, and there is actually a stronger sluice." Yan Liben smiled, just as a child's words,

"Is His Royal Highness King Jin talking about iron sluices?"

"Of course not." Li Zhi picked up a stone and drew on the ground,

"It's a triangular cone-shaped gate that's about the width of the river, and it's less hydraulically forced." While drawing, Li Zhi said: "And with the help of water power, the sluice can be made more solid, because it is a triangular pyramid, and the pointed cone side faces the direction of the large flow of water, making the gate of the two sluices, and they are triangular pyramids between opening and closing." ”

"And because of the hydraulic impact of the upstream, under the impact of this kind of water flow, the two doors will be snapped together, and the force on the inclined plane is smaller than the front, but more stable."

"This is also due to the fact that the bow of the hull is tapered, which allows it to move through the water with less resistance." Yan Liben understood the reasoning and nodded clearly,

"Although this method is good, His Royal Highness the King of Jin has not neglected one thing." Li Zhi stood up again and saluted, "Master Yan, please speak." Yan Liben held the scroll in his hand, looked down at the picture drawn by King Hejin, and the picture was drawn in a good way, is this what Zhang Shilang taught?

He immediately said: "His Royal Highness the King of Jin, since it is two interlocking conical sluices, once there is too much water stored upstream, how can manpower be greater than water power to open this triangular cone-shaped sluice." "When there is too much water above, it will press the sluice gates, and it will be difficult to open them again.

This is a horizontal gate, and when it is opened, it will still be under full pressure, which cannot be pushed by human beings.

Li Zhi squatted down and continued to draw, saying,

"What Yan Dajiang said is the relationship between water pressure, because the water level difference between the upstream and downstream will form a huge water pressure, to solve this problem is also simple, we only need to design two small windows at the bottom of the sluice, and open the small windows to release part of the water flow before opening the sluice."

"When the water level at both ends tends to be the same, it naturally reduces the water pressure upstream, and the smaller the water level difference, the smaller the water pressure." Li Zhi suddenly raised his head,

"On the contrary, when the sluice gate is closed, the lock can be opened, and the gates of the two sluice gates will naturally close with the flow of water, without too much manpower." Yan Liben said with emotion: "The clever use of water power has the meaning of four or two thousand catties, and the subtlety is deeply admired." Li Lizhi nodded with satisfaction after listening,

"Immature, I usually listen to my brother-in-law's lectures and pay attention very attentively."

"Those are all small experiments given by my brother-in-law, and I learned from them, maybe this is what my brother-in-law often says." Li Shimin looked at his son and daughter in disbelief, what is this Zhang Yang usually teaching my children?