For various reasons, Xu Hui, the wife of the engineering dog, lives in the east of the city, and the nobles are gathered, the quality of life is better, the living environment is better, and the style of life is still better.

Then, for various reasons, the engineering dog lived in the kennel in the west of the city.

During the spring flood, no matter what the situation of Liaoshui is, anyway, the drainage system of Chang'an City can't make people feel conscience.

Fifteen hundred years later, there was a group of neurotics who took the sewer as the conscience of the city, but Chang'an City used a drainage system that was 1,000 years smaller, and it was almost impossible to withstand the big water.

Fortunately, Lao Zhang had foreseen that when he designed the sugar workshop, he drove piles, and there was a margin of four or five feet under the floor.

Originally, I was thinking about stuffing some wood, bottles and cans, sauerkraut jars, and other things, but I didn't expect to save the life of the workshop. So much so that the people of Chang'an mistakenly thought that the man of Liangfeng County must have buried the oil paper bag in the house, although there was a big flood, but as long as the water receded, an oil paper bag could be dug out of the ground, and there was a brand new workshop in the oil paper bag.

Although it can't stop the crowd from pursuing urban legends, Lao Zhang has to face a real problem, he has to find a decent place to settle down.

Can't keep making do with it!

He's a nobleman! It's not just engineering dogs!

"Ah Lang, which is more beautiful than me and Chengdong?"

"Don't make a fuss, this is today's homework, arrange it. Remember to collect it tomorrow. ”

The once small round face pouted, a look of reluctance. Alas, I never expected that she looked like Xiaolongbao at the beginning, but she turned out to be a little dragon girl. The world is unpredictable, and a word becomes a prophecy.

"Isn't Wu Erniang also here, why don't you call her."

"She's not a slave, can she do that?"

"Slaves and maids can't do this, the wind outside is so strong, it hurts. Ah Lang, I'm a ...... of ice muscle and jade bones."

“……”

Lao Zhang just looked at her like this, wanting to see what happened to make a little sister-in-law cool become so guiltless.

Then Anu shook his palm: "If you choose a red crisp hand in a laughing building, who can compare?" ”

"I'll do it myself."

Zhang De sighed: If you are looking for a maid in the future, you must not find a relative in the palace, and this Nima can't be beaten and thrown on the couch to teach a good lesson, which is really embarrassing.

"Oh, Ah Lang is really puzzled. I'll go, can't I go? ”

The puffing bun face, holding a handful of schoolwork, went to the east chamber.

The man in Liangfeng County stood there for a long time before he walked back stupidly, and then rode on the Black Wind Horse and went to the outskirts of the western part of the city.

This scene has been made a venue, and a stone statue of Fuxi has been made at the door, with a compass in one hand and a ruler in the other. Behind is a row of arithmetic masters, like Zu Chongzhi, who is also a statue, is doing circumcision, and then there is a row of Tianzhu numbers: 3.1415926.

Then there was another picture, with ten grains of corn, marked as one inch.

It's not that Lao Zhang has to be so awkward, but the rule set by the imperial court is that ten grains of corn are one inch. Ten inches is a foot. Ten feet is a zhang......

As for the special measures such as one step for two feet, it is even more inconclusive, people are tall, short, fat and thin, and their legs are long and short, and it is difficult to say whose step is the standard.

Anyway, during the Zhenguan period, Lao Zhang was really rare to see the citizens spraying each other's mouths, just for the size of the house.

If the government doesn't come to measure, the two neighbors agree that our fence and the big jujube tree in the corner of your house are almost five steps away. As a result, two generations of the two families died, and the latter ones could be sprayed, and there were courtesy, courtesy, and tricks, and even the county order had to be sour at all.

"Sir!"

Kids!

Lao Zhang wanted to shout evilly, and then planted a banner at the gate of the courtyard wall, with four big characters written on it: Monkey King.

Of course, if you really do this, you don't need Li Dong, Li Chunfeng, the Taoist who looks at people's eyes and has bright eyes, will educate Liangfeng County why the male flowers are so popular.

"Alright, sit down."

Different from other schools, Mr. Other schools are elegant in it, and the subset of history tells the story eloquently, and the sage's subtle words and meanings are interpreted in a good way.

Of course, the social sciences have lasted for thousands of years, and they are all such high-end and high-end.

Which is like a mathematician, there is a **** who draws geometry in the bathtub; There are those who lie on the ground and calculate this constant and that constant; If you don't agree with someone, you will fight a duel...... It is very discordant and does not conform to the construction of spiritual civilization, so that it ...... It's nothing, it's never been welcomed.

King Wen of Zhou's disciples and grandchildren later embarked on the road of no return to see feng shui; The Pythagoreans were even more miserable...... You say it again! Tell me again that I'll spill your blood!

"Ruler drawing, you are already at the beginning of the path. The characteristics of similar triangles have also been mastered by you after a few lessons. ”

As he spoke, Lao Zhang took out a ruler, the standard ruler officially approved by the imperial court, "Whoever can be thirty equal parts of one foot in length will have a small reward for the teacher." ”

He smiled and took out another telescope, the body of the copper tube was a little special, but the students recognized it, and immediately exclaimed.

"Whoever succeeds in drawing first, give him a night to look at the stars."

"Oh......"

The group was disappointed again, but it was still fun to be able to look at the stars all night. For the bear children at this time, when they looked up, they saw everything they saw, all of which were unknown. The knowledge told by their parents and teachers is not enough to decipher their inner doubts.

When they used Gauss's theorem to get five thousand and fifty from one to one hundred, and then converted it into how to calculate the trapezoidal area, they began to think: the sky is like a dome, covering the four wilderness...... How high is this dome, how wide are these four fields?

The whole world, it turns out, can be expressed in mathematics.

Slowly, there were a few bear children, a few particularly curious bear children, began to discover a very interesting thing, and Zhenguan first sighed: "Math is really fun." ”

The next day, someone finally came to tell Zhang De that he knew how to be thirty equal feet long.

Someone figured out how to figure it out, and Lao Zhang was very pleased, but when he saw the person, he was very sorry. In short, it's tangled.

"Brother, I know how to draw. You see! ”

As he spoke, Yu Chihuan spread the rice paper, picked up the compass, and set a fixed size. One foot long is the base, and a ray is drawn at one end of the line segment, forming an acute angle. Then Wei Chihuan used a compass to cut thirty points on the extension line, and the last point connected the bottom line segment terminally.

The principle of parallel lines and equal division of line segments is very easy to use.

However, what made Zhang De entangled was that the bear child who came out of his pondering was a fanatical admirer of "Sai Wei Chi" and "Little Zhang Fei", who became a monk halfway. What's even worse is that his father is the captain of "Sai Wei Chi".

The son born to the old devil has several shapes, but Yu Chihuan is the most unscientific.

If it weren't for the fact that there was no one surnamed Wang living next door to Wei Chigong's house, Lao Zhang would have been fiercely suspicious.

"Ah Huan, you are very perceptive."

"My brother praised it falsely, but my little brother just had a flash of inspiration, and it wasn't worth it."

Wei Chihuan is very modest, which reminds Lao Zhang of when he first came to Chang'an...... There is also a very well-behaved child in the family, his name is Zhang Da'an. is a bear child who can cry and faint on the board car for a few dollars, and now, he is also a thirteen-year-old young man.

Lao Zhang was a little speechless and didn't know what to say.

However, Yu Chihuan was anxious, rubbed his hands and asked, "Brother, can you borrow that clairvoyant for the younger brother?" ”

The corners of his mouth twitched, and Lao Zhang always felt that something was wrong, so he asked cautiously: "Ah Huan wants to follow his father's example and look at the enemy formation from afar, so as to respond to the changes in the military formation?" ”

Yu Chihuan was stunned for a moment: "Little brother just wants to see Mingyue." ”

“……”

It's embarrassing.

It was Lao Zhang's turn to be confused, and Lao Zhang sighed in his heart: I would have lit the moon with my heart, but the bright moon shines on the ditch! Tell me about you, a good son of the door god, what kind of math are you studying! Don't do your job! (To be continued.) )