"Local history?" Wei Shuyu first chose to scan the local chronicles, thinking that after scanning it himself, he placed the books in the wrong place, which caused Li Mingda to not find it.

"Hello two princesses!" Wei Shuyu walked out from behind the bookshelf, and said with a smile!

"Is that you? Brother Wei! Li Yiren saw that it was Wei Shuyu, and his face changed from surprise to joy.

"Yes, Your Highness Princess!" Wei Shuyu smiled and nodded.

"Yiyi, is this Wei Shuyu who gave you the iron horse?" Li Mingda saw that Wei Shuyu's eyes were clear when he looked at his little sister, his expression eased a lot, and then he asked.

"Sister, it's Brother Wei! Don't you want an iron horse, and the Lord has appeared in front of you! ”

"Yiyi, you! Wei, Wei Gongzi, don't listen to my little sister's nonsense! Li Mingda gave Li Yiren a blank look, how could anyone ask for a gift in front of others.

"If the princess doesn't dislike it, there is an idle women's iron horse below, which is just right for the princess to ride."

Li Mingda is more mature than Li Yiren. After all, she is more than two years older than Li Yiren, and the royal daughter is not comparable to ordinary people's families, even the housekeeper lady can't compare.

Her little sister is almost nine years old, but she is half a head shorter than Li Yiren, who is also almost nine years old.

And the eleven-year-old Li Mingda, now looks fifteen or sixteen years old, full of bookish smell, elegant and elegant, no wonder his second brother is fascinated by it.

"This, Master Wei."

Li Mingda glanced at Wei Shuyu and saw that his bright eyes were dark and bright, not adulterated, and there was no nasty glint in the eyes of other official sons. The vigilance in my heart that Wei Shuyu came to talk to disappeared.

Although the princess is high, she is also very tired, especially when facing the official son.

Li Lao Er also often told him to let Li Mingda have more contact with the official son, and also allowed Li Mingda to choose his husband.

Such a favor may be rare in history. Even Li Yiren, the emperor's youngest daughter, did not get such a promise from Li Shimin.

The princess of the entire Tang Dynasty, Li Mingda can be described as the only one.

And with the exposure of this matter, Li Mingda's life will always break into some sons and brothers, and perform all kinds of performances in front of her, which makes her annoying.

I thought that Wei Shuyu was another child with the same purpose, but I didn't expect Wei Shuyu's eyes to be so clear, and he didn't have the slightest desire to hide.

"Sister, you're welcome. Wu Niang told me that his eldest brother is the best eldest brother in the world, the most generous eldest brother. An iron horse, Brother Wei is still willing to do it. ”

Li Yiren saw that her sister Li Mingda was still pretending to shirk, so she couldn't help but encourage her sister to accept it on the side.

"The little princess is very right! Tomorrow I will bring the iron horse here. When the time comes, the princess will need to come and pick it up! ”

After Wei Shuyu finished speaking, he said goodbye to the two princesses and left the Hongwen Palace.

"Yiyi, how can you ask for a gift from someone?"

"Sister, Brother Wei won't mind!"

"But that's a faux pas!"

"Sister, Wu Niang said, her eldest brother is my eldest brother, let me not be polite!"

"You, you, okay, okay, anyway, they promised to send me one. We also need to find an opportunity to return the gift! ”

"So what's the send?"

"This, what to give? It's really difficult......"

Wei Shuyu has the emperor's imperial token, and he passes all the way unimpeded. Soon came out of the imperial city, at the gate of the city, a young man in brocade just came to meet him.

Wei Shuyu nodded to the other party in a polite manner. The young man in brocade looked happy and quickened his pace.

"Brother Wei!"

"It's you again"

"It's me!" The brocade-clothed boy replied.

Wei Shuyu was a little speechless, since Yan Lide came, he brought another teenager over. And this teenager is Li Jiu.

From then on, Wei Shuyu felt that wherever he went, he had Li Jiu's figure. Just like a shadow, Wei Shuyu is there, and Li Jiu is there!

Wei Shuyu looked at his posture, and was about to chat with himself, and said secretly in his heart, can't you hear that I am talking casually and politely? Don't you see that I have urgent business to do?

"Brother Li, Wei still has some things, let's talk about it another day!" After Wei Shuyu finished speaking, he hugged his fists and left directly.

"Brother Wei is busy himself!" Li Jiulang followed behind Wei Shuyu and said with a smile.

"Huh?" Wei Shuyu shook his head and ignored Li Jiulang, and Li Jiulang was not angry and still followed Wei Shuyu.

Wei Shuyu took three steps and made two steps, and soon came to the Deng Guogong Mansion in Yongxingfang. Entering the study, Wei Zhengda was still working hard as always.

Wei Shuyu didn't bother, so he retreated. It's just that seeing Wei Zheng's complexion, Wei Shuyu was a little worried.

Persuasion was repeated many times, but to no avail. The day before yesterday, Wei Zheng fell directly in the study, making his mother Pei cry.

Fortunately, the imperial doctor felt timely and pulled Wei Zheng back from the hands of death. Wei Shuyu walked out of the study and came to the newly built study in the backyard.

The study is said to be a study, but it is better to say that it is a school. Because there were about a dozen students sitting inside.

There are Wei Shuyu's second, third, fourth and fifth brothers, as well as Qin Huaiyu, Cheng Jiaerlang, Sanlang and several other royal relatives.

When Wei Shuyu entered, several people were arguing. Wei Shuyu listened carefully, not to mention that the children of the Tang Dynasty were really studious.

By the very moment, a few of the little ones have mastered Arabic numerals and are able to do math problems in the third grade.

And what everyone is arguing about is a math application problem.

Wei Shuyu withdrew, if he went in, then he wouldn't have time to do anything else today.

Once, Wei Shuyu found a few little guys discussing the math problems he gave. Wei Shuyu felt the studious spirit of several people, so he went inside to take a look.

Unexpectedly, several people surrounded Wei Shuyu in an instant, and then pulled Wei Shuyu to talk about elementary school mathematics for a day.

From that day on, Wei Shuyu only provided math materials on a regular basis, and then let a few people study on their own. If you find a problem in learning, let a few people discuss and solve it, and if you can't solve it, you will record it.

Then Wei Shuyu will focus on solving the problem the next time he provides information.

No matter how pestering a few people are, Wei Shuyu is still very pleased, as they grow up, a group of mathematicians who are far ahead of the Tang Dynasty in the future will also grow up.

Over time, they will affect more people.

Wei Shuyu even has a plan, that is, to find an appropriate time to spread the knowledge of basic physics, basic chemistry, and basic biology in the future.

Wei Shuyu went to chat with his mother for a while, and then rushed back to the Gudefang Research Institute. Now the Gudfong Research Institute has become a veritable research institute.

In addition to dozens of workers producing heating equipment, there was also a trainee sent by the Ministry of Industry who was holding a notebook to record and study.