This time, Yan Ming was not worried at all. Pen & Fun & Pavilion www.biquge.info he knew that the children would succeed after so much research. It's just that their system still has some imperfections that need to be improved.

These imperfections have long been seen by Yan Ming. After all, children have just come into contact with machinery, and unlike themselves, who are studying mechanical and electrical engineering, they need to be guided little by little.

Therefore, Yan Ming did not point out these imperfections.

He was waiting, waiting for the children to come back, and then everyone sat down together to study and discuss the gains and losses of this time.

Yan Ming prepared a small table, and in this summer, when the weather is getting hotter, he likes to drink hot tea. In summer, a pot of hot tea goes down, sweating, and people are cool.

On the contrary, the more you drink cold water, the hotter your heart will become.

Today's pot of tea, Yan Ming is prepared for children. Their efforts should be appreciated. Although he is a marquis, Yan Ming has no distinction between high and low in his heart. They are equal teacher-student relationships.

Far away, Yan Ming heard the children's victorious laughter. Especially the exaggerated shouts of the old children of the Hu family, which were mixed with joy.

The adults, except for the nameless Wang Si Mazi, are the two pairs of Lao Wang and Lao Hu who were originally going to form in-laws, but now they have some grievances.

Lao Wang is now raising his eyebrows. He saw the whole process in his eyes, everything was his daughter Xiao Cui'er commanding and dispatching, seeing his daughter's appearance of not letting her eyebrows go, Lao Wang felt that it was right for the child to send Hongyantang.

Seeing Lao Wang's arrogant appearance, Lao Hu didn't feel good in his heart, such a good daughter-in-law was lost like this. Now that Xiao Cui'er is becoming more and more capable, I am afraid that she will no longer be able to look down on the old Hu family. Fortunately, there is still Lao Xiao'er, a little rabbit, but he didn't embarrass the old Hu family.

The two simple peasants thought about it without a boundary, and followed the children to the Yan family's compound.

Although there is no courtyard wall anymore, they all know that this is Yan Hou's home, it is the Hou Ye's mansion, and not ordinary people can enter it. Especially when he saw Yan An standing outside waiting, he didn't dare to go inside.

At this time, adults envy the life of children.

Wang Xiaocuier took the old child of the Hu family and the two children who helped, swaggered close to the courtyard of the Yan family, and greeted Yan An naturally, and did not salute respectfully until Yan Ming came to him.

This is the courtesy of the disciple to the teacher, and it cannot be abandoned.

After they finished saluting, Yan Ming's face showed a smile, and he pointed to the small stools that had been placed around him a long time ago, and said with a smile: "Hurry up and sit down, today you have done an experiment on the physics of Hongyan Hall." ”

When the children saw the smile on the teacher's face, they immediately jumped for joy. Even Wang Xiaocuier, who had been quiet, also spoke, chattering about the whole process.

It's as if they've done something great.

Yan Ming smiled and listened to the children talk about the whole process, and even the process they had when designing the pulley was also explained in detail.

Yan An wanted to pour tea for them, Yan Ming waved his hand, picked up the teapot himself, and poured it for the children himself.

When I looked up, I saw Lao Wang and Lao Hu outside, as well as the nameless holding Wang Si Mazi. Yan Ming beckoned with a smile and said, "The two elder brothers, both from the township, come and sit down and listen to the children." Nameless, let go of Wang Si Mazi, you can also come over and have a sip of tea. ”

Under Yan Ming's warm greeting, Lao Wang and Lao Hu squirmed, but still walked in, sat on the small stool, rubbed left and right, and said: "This stool is really more comfortable than kneeling!" ”

"No wonder the babies come home and shout for stools, but we won't get them." Lao Hu also said with a smile.

Nameless did not sit down, but stood beside Yan Ming like Yan An.

His own family, naturally there is no need to be polite, Yan Ming poured tea for Lao Wang and Lao Hu first, then poured himself full, and then gave the teapot to Wang Xiaocuier.

Lao Wang and Lao Hu Cheng were afraid that Yan Shan was in charge, and they were not qualified to board the gate of the Yan family. Now that the Yan family has become a Hou Ye, they are more low-key, which makes the local villagers very good.

After taking a sip of tea, Yan Ming put down the teacup and exchanged a few words with Lao Wang and Lao Hu, and then asked, "Do you think there are any things that need to be improved in this experiment?" ”

Wang Xiaocuier and the others were slightly stunned, this time their selection of materials was iron pulleys, and the bearing capacity Xiao Cuier had also calculated, and it was no problem to bear a cow.

Considering the grinding sound between the pulley and the axle just now, it seems that there is indeed room for improvement.

"I don't think the friction has been dealt with properly!" Wang Xiaocui said.

"Hmm!" Yan Ming nodded.

"The material of the rope is strong enough, but when the cow is hanged, if it is not for the nameless uncle who gives us clothes, it will definitely strangle the old cow." The old and young of the Hu family said.

"Hmm!"

Every time they said one, Yan Ming would nod his head in agreement.

With his encouragement, the children talked more and more.

When Mr. Huang opened a private school before, Lao Wang and others had also seen Mr. Huang's teaching method, which was the kind of teaching method that was the same.

But now sitting here, seeing Yan Ming talking about pulleys while drinking tea with students, he suddenly understood that Yan Ming This is also a kind of teaching, but what is this way called, Lao Wang and Lao Hu don't understand.

After listening to the children's chatter, Yan Ming asked with a smile, "Is there anything else?" ”

Wang Xiaocui frowned and thought for a while, and then said firmly: "Teacher, I don't think it's anymore." In addition to the friction is not easy to solve, the problems they just said are easy to solve. ”

Yan Ming nodded and said with a smile: "Why does the carriage have to be loaded with wheels and then run?" ”

"Because carriages run on wheels!" The old Wang, who was listening to it, said casually.

Xiao Cui'er glanced at his father, wanted to glare at him, and thought of the words in the disciple's rules, so she had to hold back. Listen to what Yan Ming has to say.

"If the carriage doesn't have wheels, it slides on the ground. The friction will be greater. Not only is it laborious to pull a horse, but even the car wears out quickly. Take a look at your pulleys! Yan Ming explained.

The old child of the Hu family took out the pulley and put it on the table.

Yan Ming picked it up and looked at it, and there was really no measure to reduce friction between the pulley and the axle. He pointed to the place where the pulley and the axle meet, and said, "Here, if you smear some lard, it will be much better." But the best way is to put iron beads in it and then apply lard, the effect is the best! ”

"Also, you only think about the pulley, and you don't think that you can get the cow out in any other way?" Yan Ming looked at the children with a smile on his face.

"Something else?" Wang Xiaocuier scratched her head, a little confused.

Several of the children fell silent.

Yan Ming laughed, and no longer discussed the problem of learning with them, but asked Yan An and Wuming to sit down, followed by Lao Wang and Lao Hu, and several people talked about farming while drinking tea.

Except for Yan Ming, these people are all experts in farming, and they are talking about the Tao.

Speaking of the corn planted by Yan Ming, Lao Wang and Lao Hu were even more envious, saying that Yan Hou must keep more seeds, and they are willing to pay for them.

In their words, when you look at the big corn cob, you can't miss the grain. In a feudal agrarian society, nothing was as important as food. This is the essence of life.