Wang Ding knelt on the ground with a look of wrongedness, who would have known that the first recital after Li Chunfeng went to Jingyang turned out to be a latrine.

This Li Chunfeng is also really, even if he specializes in Taoism and mathematics on weekdays, he won't even let go of the toilet.

After reading it, Li Shimin handed this piece to Wang Ding, who was kneeling on the ground, "Give this to Yan Liben and let him make it." ”

Wang Ding trembled and took over the movement, "Huh." ”

Yan Liben was also a little dumbfounded when he took this toilet recital, "It's the first time in the old man's life as a craftsman to see such a chic pit." ”

Wang Ding smiled and said to Yan Liben: "This is still made by the Hou of Jingyang County. ”

"Jingyang County Hou, Li Zheng?" Yan Liben asked suspiciously: "I didn't expect him to even let go of the latrine, which really made the old man admire." ”

Wang Ding had no choice but to smile bitterly.

Yan Liben has been doing craftsman work since he was sensible, and he has been doing it for more than 20 years now.

Looking at this drawing, Yan Liben immediately understood the magic of it.

Wang Ding asked in a low voice, "Can Master Yan make it?" ”

Yan Liben pondered the drawings and said: "There shouldn't be many problems, even if you draw a scoop according to the gourd, you can make it, and the drawings of the county marquis can be said to be the most detailed one in the Central Plains." ”

"That'll be fine." Wang Ding smiled and nodded.

Yan Liben gathered some craftsmen from the Ministry of Engineering and began to make flush toilets according to this drawing.

Everything else could be understood, but it was the first time he had heard the word water pressure.

I know that water can float things, and this is the first time I've heard that water can hold things down.

Making a rough prototype, Yan Liben poured water into the water tank, and after seeing that the valve was really pressed by the water, he observed it curiously.

The valve was really pressed down by the water, and it was very pressed.

If there is not a rope that can pull the valve, it is really not easy to try to open the valve.

"Is this the water pressure?" Yan Liben muttered to himself.

Writing the word water pressure in one of his books, Yan Liben wondered in his heart how far Li Zheng had studied the hundred crafts.

Able to study the flow of water so thoroughly.

Flush toilets are actually not difficult to make, using water pressure and valves.

Yan Liben said to the craftsmen of the Ministry of Industry: "You say why the county marquis wants to make a lid on the toilet, isn't this an extra move? ”

The craftsmen of the Ministry of Industry were also very puzzled.

After making the toilet, Yan Liben began to specialize in the principle of this drawing.

It's easy to draw a drawing according to the pattern, but you have to understand the principle of it, which is the real mystery of this drawing.

Yan Liben put a bowl upside down in the bucket and poured water into the bucket.

It was found that the clay bowl under the bucket quickly floated up.

Yan Liben couldn't understand how the valve of the bucket was fastened.

How exactly does this water pressure exist.

Leaving the palace in a hurry, Yan Liben came to Jingyang.

Now Li Zheng has a direct road to Jingyang.

This road soon replaced the official road.

In addition to the right direction of Long, many people like to take this new road.

Yan Liben thought in his heart, maybe even Li Shimin didn't expect that Li Zheng could build the road so well.

Let so many people go this way.

The large trees on both sides give you the feeling of walking on a boulevard.

It is planted with willow trees, which are rare in Chang'an, and when the wind blows, a large area of catkins will be raised.

Particularly beautiful.

Yan Liben had just walked to Jingyang when he was stopped by Li Ke.

"I'm here to see Li Zheng." Yan Liben arched his hand and said, "Please also ask His Royal Highness the King of Shu to let go." ”

Li Ke said in a low voice: "I'll let someone report it." ”

"Circular...... When do you need to report when you see Li Zheng? ”

After speaking, Yan Liben smiled and said: "It should be, after all, Li Zheng is now a county marquis. ”

Li Ke stood silently, in fact, he wanted to say that it was because of Li Gang's relationship, and Li Zheng didn't like to let outsiders into Jingyang recently.

After waiting for a while, someone came to reply: "The county marquis is very busy, and there are no guests for the time being." ”

"Is he busy?" Yan Liben was a little disappointed.

Li Ke spoke: "Please go back." ”

has been a craftsman for half his life, and Yan Liben naturally has someone with better skills than himself.

Perhaps Li Zheng is one of them.

If you want to ask Li Zheng about the water pressure, if you can understand this, you must be able to improve your craftsmanship level in the future.

Walking towards the back road, Yan Liben glanced back at the direction of Jingyang with some reluctance.

As soon as he walked away, there was a shouting behind him.

"Master Yan, please stay."

Yan Liben stopped and looked back, it was a small child, he ran over panting, holding a cloth bag in his hand.

"You are the kid who followed Li Zheng."

"I'm a big cow." Da Niu gasped and said, "The teacher has something to say, let me take you Yan Master." ”

"What words? Didn't he want to see the old man? Yan Liben said disappointedly.

Da Niu handed the cloth bag to Yan Liben, "The county marquis said, if Yan can untie these three objects, he can come to see the county marquis." ”

After listening to his words, Yan Liben took out three items from the cloth bag.

The first thing I took out was a strange box with some small items inside.

"What is this?" Yan Liben asked curiously.

Da Niu explained: "This is called Huarong Dao, and it is a small game. ”

"Huarong Dao?"

Da Niu nodded, "It's the Huarong Dao that Cao Cao walked back then, and it was a small game made by the teacher based on the original allusions." ”

Yan Liben looked at the small wooden planks on it, "What does Li Zheng mean by giving me this?" ”

Da Niu said: "Just move the wooden block in the box and take the largest piece out of it." ”

"Huh." Yan Liben smiled coldly, "What's so difficult about this. ”

In the shade of a tree outside Jingyang Village, a large and a small one sit.

After speaking, Yan Liben began to move the small wooden blocks in the box, and was stunned after several movements.

Ten small pieces of wood of various sizes, the largest of which could not get out of the box, no matter how much they moved.

"Can Li Zheng come out?" Yan Liben asked Da Niu.

"The teacher taught me, but it's not difficult." Da Niu said indifferently.

Yan Liben tried a few times with some reluctance, but still failed.

Hand the wooden box to Da Niu, "You can try it." ”

The big cow took the wooden box.

Yan Liben watched intently, waiting for the big cow to take the wooden block out.

Seeing that the big cow began to move the small wooden block, the child's movements were fast and skillful, and after repeating dozens of steps, the largest wooden block moved out.

Yan Liben smiled happily, "It turns out that it can really be moved out." ”

"yes, it's actually a very simple solution." After Da Niu finished speaking, he put the big wooden block into the box again, and the order was disrupted.

Yan Liben: "......"