The bark needs two wide rectangles and two pieces. The children were quickly found. Yang Yuanliang drew a cross under the bow and cut a cross in the middle of the bark with a knife. This device is like a propeller.

Yang Yuanliang turned his lighting bow to the ground and let out a whistling wind. Then Yang Yuanliang put the shell of the hair dryer he had made earlier on the archery bow.

The outer shell of the fan is a round basin-shaped object, except that the basin floor is cut off and a long nozzle sticks out. After Yang Yuanliang turned the bow of the lighter, a strong wind blew from the nozzle.

"Bangs, as the class leader, you have to explain why this tuyere is always blowing the wind!" Liu Hai raised his head, stood like a soldier and waited for review, and shouted: "Yes, teacher!"

Liu Hai then explained, "Because this blower draws air from above, no matter how it rotates, the wind always blows out from below due to the pressure relationship, as described in Chapter 30 of Fluid Mechanics in this book." ”

Yang Yuanliang nodded with satisfaction. At first, he thought he was lecturing too much. He was worried that the children would not understand. In fact, as long as the lectures are done well, children can learn some basic things very quickly.

A simple lighter bow and a few simple parts can be used to raise the temperature of the flame, make a good iron blower, and replace the fan blades with a good drilling machine.

If I add a motor behind the fan blades, it can be turned into a propeller. It is a tool for human progress. Tomorrow I will teach you how to make iron. ”

Yang Yuanliang brought the children back and prepared to teach them iron smelting tomorrow. Iron making is simple. First, he discovered that the soil contained iron. This soil is commonly found in nature along rivers and streams and has a red flowing state. Let them dig with a hoe.

In order to make this iron very simple, this soil is collected, a small furnace is made by the method of settling ropes and trash rack pots, and the soil is mixed with plant ash and charcoal, which plays a substitute role in the combustion process, and iron can be obtained as long as the temperature is guaranteed.

Using hair dryer heating and ready-made charcoal fuel, Yang Yuanliang produced an ugly piece of iron the size of a palm, which was simple for Yang Yuanliang, but a huge step forward for the tens of millions of people in Dachen.

This group of people are all old faces, and they basically saw it in the Linglong Poetry Pavilion, this time there were seven people, and the last son of the three talented people in Suzhou who played with big fat meat did not come.

Most of the people who come here are people who can't survive. Otherwise, they would not have traveled as far as Guangzhou to join Yang Yuanliang. After they came, Yang Yuanliang took them to class.

Look at the mechanical gears on the blackboard, the lever chemical equations, these people are forced, they haven't learned these yet, the quadratic equation of one variable is their limit.

In addition to literature, the children here threw them down a few streets. Yang Yuanliang asked them to teach basic literature and instruct some children's literature knowledge. If they teach well, Yang Yuanliang decided to give them some industrial knowledge.

"Brother Yuanliang, we are old acquaintances, you teach these children, they have great powers, they can only please women, in the future, it is better to read the Four Books and Five Classics!"

"Brother Yuanliang, you are world-famous. As long as you teach four books and five classic books, these children will be very successful in the future, and we can also be honored for it. ”

"I know that Brother Yuanliang has learned from ancient times to the present. I think he can teach these things, but it's better to teach four more books and five classics!"

The three talented men didn't look at Yang Yuanliang's face, so they persuaded him. At this time, a talented man surnamed Hu looked at the blackboard among the people who came to rely on him and said, "I think it's good to teach this." I see a sense of pride in the bones of the children who look down on us here, and it shows that this thing is not bad. ”

Yang Yuanliang spoke highly of this person in his heart, and his friend said: "Unfortunately, we can't share our worries with Yuanliang. Since I have come to rely on him, I will teach anything as long as I can afford it. ”

For this person, Yang Yuanliang's heart can't say that he likes or hates, this kind of person is for money, very honest, once Yang Yuanliang doesn't give him money, he will leave, but as long as the interests are enough, this person will not leave, this person's surname is Yao, Yang Yuanliang also remembers.

Two other people, one decided to stay, the other decided to stay and try. As for the other three, Yang Yuanliang gave a person 52 silver coins to let them go. This school doesn't need such people.

After Hu Wenju stayed here for three days, he had to come to the right place himself. He knew almost nothing about Yang Yuanliang's teachings, but he was afraid of Yang Yuanliang's teachings.

What chemical poison pill, what armored vehicle, what armored boat, what mass killing and wounding martial arts, bacteriological weapons, biological weapons, nuclear weapons, these things make Hu Wenju feel that he is living in a dream.

He had private conversations with three other teachers. When he heard Yao's surname Hu Wen, he turned on his voice and left immediately. He turned around and told Yang Yuanliang that he wanted to stay here. The labor of 2000 silver coins a year was too important for his family, who only had a few acres of barren land and hoped that he would have a good future.

He also knew that in the cold weather of the north, there must be nothing good to catch. When he lived in the cowshed, he considered taking refuge in the cold places of the north. However, if he doesn't want to, the northern cold will come, rolling blindly and making Da Chen uncomfortable.

He is disappointed because he has to live seriously until a group of friends raise money to redeem them. When he returned to Da Chen, he received a message that he would never be hired and went back to working on the farm.

For others, it's a good thing. The old emperor was merciful and merciful, and did not hold these students accountable. But for him, who has only a few acres of land, it is undoubtedly a catastrophe.

In his hometown, he went to teach others not to do this. He can't face it by work. Every day, he can only live by helping others copy books. But life is more painful and painful. At this time, Dapeng wrote that Yang Yuanliang had opened a charity school in Guangzhou. He needed a teacher to teach him two thousand dollars a year.

At that time, Yao Jin was very excited. Yang Yuanliang was the first genius of the Great Chen Dynasty. If he had opened a school, he would not have had a few thousand dollars, and the children would not have been able to send them. Although he didn't know how Yang Yuanliang got to Guangzhou. Since Yang Yuanliang wanted to help, he went.

After saying goodbye to his father, wife and children, he met with friends at the designated place and soon went to Yang Yuanliang. Yao Jin was stupid when he came here. What did Yang Yuanliang do?

However, Yang Yuanliang is a very capable person. It's not bad to have a soap factory in Tozu every day. No.

Yang Yuanliang learned from Yao Jinkou, and several other teachers also had opinions, so they just nodded and laughed, and didn't say much. Before these teachers arrived, Yang Yuanliang also found some local substitute teachers. They were all frightened by Yang Yuanliang and refused to teach here.

Soon, Hu Wenju found Yang Yuanliang and called all the people who stayed. Hu Wenju is also straightforward. He asked Yang Yuanliang: "Brother Yuanliang, it's not easy to teach these children to run factories. If you only operate a factory, we can help you. If you have other plans, we can't help you.

Yang Yuanliang nodded after hearing this. You can go now!" Like them, five hundred silver coins, I will give you money later, and we can collect and disperse it.