After planting cowpox, Zhu Houwei returned to the palace early, and under the care of Qingmei and Xiaohuan, he launched a low-grade fever that lived up to expectations. Zhu Houwei didn't feel too uncomfortable, but Qingmei and the others were in a hurry. Li Yan heard that the palace was coming, and diagnosed that this thing was normal, and finally settled a few people who served him personally.

Two days later, the low-grade fever subsided, Zhu Houwei went to Li Yanwen for a follow-up visit, looking at the small scar on his left arm, Zhu Houwei smiled happily.

Next, Zhu Houzhao and others also began to be vaccinated, so far they have not been infected with smallpox, in this era, I don't know when smallpox will appear, after safe vaccination, you don't have to be afraid. Li Yanwen has also been very busy recently, not only to be busy vaccinating these nobles, but also to research and develop the preservation of cowpox and expand production, because according to Zhu Houwei's instructions, the next step is to plant the people of Chaoyang Academy, and these tens of thousands of people are the hope of the future, and they must not be careless.

On the eighth day of the ninth lunar month, the day before the Double Ninth Festival, Zhu Houwei, Zhu Houzhao and others came to Chaoyang Courtyard again, because the crops in the field were about to be harvested.

There are hundreds of acres of land next to Chaoyang Courtyard that are allocated to Chaoyang Courtyard, and each class is responsible for one acre of land.

In order to make crops grow healthily, some students went home to ask their parents, and more went to the library to find books about agriculture, so that the library stocked several batches of agricultural books. The most important point is to cultivate students' sense of teamwork and adapt to the division of labor and cooperation to solve problems, rather than class cadres talking broadly there, and really capable personnel can not do anything.

On the 8th of September, it is designated as the harvest festival of Chaoyang-in, and everything in the fields is harvested today. So there is no class in Chaoyang Courtyard today, except for the class where the crops have been harvested, they are basically working in these hundreds of acres of land today.

Zhu Houwei and the others happened to see the students harvesting when they came, no matter how many things were planted in the field, as long as the harvest was made, everyone was happy. Zhu Houwei and the others did not go down to help, but stood next to the carriage and watched from afar. Such a small scene is not interesting to Zhu Houzhao and others at all, and the harvest of Huangzhuang a few days ago is the big scene. In the autumn of this year, Huangzhuang had a bumper harvest again, and most of the crops cultivated this time were rice, with an average yield of three and a half stones, that is, about seven hundred catties. The paddy fields are like the ocean, vast and boundless, and when the breeze blows, the rice waves form wave after wave, which makes people feel refreshed and happy. In order to harvest as soon as possible, almost all the people who were able to move in the entire Huangzhuang came out, and even so, the harvesting process lasted for a full seven days, and the drying fields in all the villages were covered with crops, and everyone in the Huangzhuang was smiling.

This autumn's Huangzhuang harvest also attracted a lot of students, merchants and people with a heart to visit, see such a bumper harvest, many people were shocked, through their word of mouth, Huangzhuang in the reputation of the royal at the same time also added a mysterious color, because many people feel that the royal is the art of immortals, otherwise why Huangzhuang can have 700 catties, and most of the people are not even 400 catties.

Before noon, hundreds of acres of land had already been harvested, after all, tens of thousands of people harvested together. So what is the use of the produce in these fields? It is impossible to distribute it to every student and then take it home, how many things can be collected in one acre of land, and it would be too shabby to distribute it to more than 50 people.

In fact, these things will be purchased by the school, of course, not real money, but points. For example, a pound of rice is ten points, and a pound of garlic is fifteen points. At harvest time, people from other classes recorded that this thing could not be faked. The role of points is to go to the logistics department to exchange things, paper, ink, pen and pen books or something, everything, and the exchange ratio is also very low, a book only needs 30 to 50 points, basically everyone can get it. And the most exchanged by students is books, everyone is basically poor, and they are very persistent about books, and it is also a very face-saving thing to have books at home.

After lunch, Zhu Houzhao and others came to a relatively large auditorium in Chaoyang Courtyard, which can basically seat nearly 2,000 people, and the unique design also allows the sound of the podium to reach every corner.

Now the teachers sitting here are all teachers from Chaoyang Academy, and the reason they are here is to propose experiments.

Zhu Houzhao and his entourage quietly sat in the back seat, which closely attracted the attention of the people on both sides, but they didn't come to say hello when they saw them in regular clothes. There was silence in the auditorium, and the voices from the podium were very clear.

On the podium was a seventeen or eighteen-year-old woman with an ordinary appearance, but her voice was very penetrating, and she said with a serious expression, "Good afternoon, everyone. I'm Yu Zhaodi, and the topic I'm going to raise today is sliding friction. The experiment is a small experiment, with five students enrolled, and is expected to be completed within 10 days. The experiments are mainly to measure the coefficient of friction and static friction of various materials. When an object slides on the surface of another object, the phenomenon that prevents the relative sliding between two objects on the contact surface of the two objects is called "sliding friction". The sliding friction when there is a relative sliding between the objects is called kinetic friction. The sliding friction when there is a tendency to slide between objects but they have not yet slid is called static friction. Complete. ”

As soon as the voice fell, many people below began to record. After Yu Zhaodi walked down, a man of about twenty or so walked up to the podium, of medium height and ordinary appearance, but looking at the thousand people in the audience, his face was calm and smiling. The audience spontaneously applauded, and the man smiled and returned the salute, but soon, the applause subsided, and everyone began to wait for the man's speech.

Zhu Xiuning asked Zhu Houwei who was sitting next to him in a low voice, "Second brother, who is that person, I think he seems to be very popular with other people." ”

Zhu Houwei said with a smile, "His name is Sun Yi, a very good young man." In the past two years, he has led nearly 30 large and small experiments, and many experiments have been compiled into physics textbooks. ”

Sun Yi smiled and said, "Everyone, good afternoon." I'm Sun Yi, and the topic I'm going to raise today is Kong Ming Lantern. The experiment was large-scale, requiring 30 to 50 people. The experiment is expected to last more than thirty days. The experiment mainly uses paper, cloth, and animal fur to make Kong Ming lanterns, and it is necessary to experiment to obtain various conditions for Kong Ming lanterns with a load of 200 catties. Complete. ”

As soon as the words fell, dozens of people in the audience stretched out their hands, and Sun Yi pointed to one casually, "Please speak." The man who was ordered sat down and said, "If you can fly into the air with a load of 200 catties, does it mean that you can let people ride and fly into the sky?" Sun Yi replied with a smile, "Theoretically, yes, but the livestock will be used for testing first, and if it is safe, other things will be considered." ”

Everyone in the audience exclaimed, Sun Yi's experiment may send people into the sky, which is absolutely incredible. Human beings' reverie for the sky has never been broken, both ancient and modern, both in China and abroad. The forerunner was a person named Tao Chengdao at the end of the Yuan Dynasty and the beginning of the Ming Dynasty. When he was young, he used his superb firearms skills to help Zhu Yuanzhang, who was still the king of Wu, fight the world. Zhu Yuanzhang sealed him a 10,000-household official. After expelling the Tartars and pacifying the world, Tao Chengdao also entered his old age. Then he did the first flight experiment in human history.

He tied himself to a bamboo chair and then strapped forty-seven homemade rockets to it. It was the first time he had done this experiment, and it was also the last. In honor of the world's first astronaut, the International Astronomical Union named a crater on the moon after him.

Zhu Xiuning pulled Zhu Houwei's sleeve with some excitement and asked, "Can this Sun Yi succeed?" Zhu Houwei saw that Zhu Houzhao was also staring at him tightly, and smiled bitterly, "How do I know?" But in theory, it does. In addition, the success rate of the experiment currently presided over by Sun Yi is 100%. Just wait slowly. ”

Zhu Xiuning looked at Sun Yi on the stage and muttered, "I really hope he can succeed." Zhu Houzhao also looked at the stage with great interest. After Sun Yi stepped down, the moderator of the meeting came to the stage and said, "Now, all the experiments proposed are over. There were 32 small experiments, 21 medium experiments, and 3 large experiments. A total of fifty-six experiments. After the meeting. The person in charge of the experiment will be interviewed in the first row. The meeting is now adjourned and adjourned. ”

Everyone applauded together, and after the host stepped down, the people who had not been on stage just now took the notes they had written down and began to find the person in charge and choose the experimental group they were interested in.

Zhu Houzhao saw a somewhat scattered but not noisy crowd, and slowly withdrew from the auditorium. Bai Yulian said, "Looking at the experiments they proposed, many of them are quite interesting." Zhu Xiuning immediately interfaced: "Yes, yes, second brother, can anyone propose an experiment?" Can I mention one too? Zhu Houwei looked at his sister and said helplessly, "The experiment looks interesting, but in fact, the experiment is still very boring, and it takes a lot of time and energy." And the experiment is not necessarily successful. Of course, it's not impossible if you have to get one, but you have to take into account the feasibility, and also look at the textbooks currently written, whether the experiments are repeated or anything. ”

The group rode in a carriage and prepared to return to the capital. When passing by a forest, Hong Yu, who was riding a horse, suddenly had a serious face, and he usually had a serious face, and he could hardly see the change in his expression.

As soon as Hong Yu waved his hand, the line of thirty or so people immediately stopped. Zhu Houwei poked his head out of the carriage and looked at Hong Yu, "What's wrong?" Hong Yu looked into the woods and said, "There is movement." "Stand back" The team stepped back a bit. Hong Yu drew his sword and slowly entered the woods. The rest of the team was also on guard, and began to draw their knives and reload their ammunition. Not long after, everyone was stunned, only to see Hong Yu hugging an unconscious woman in ragged clothes with her hair covering her face. The careful Zhu Houwei found a red strangulation mark on her neck.