Ma Zhou scratched his head. It seemed that he didn't remember much. Hao Chujun nodded.
"Since you remember it, go and find it. Bring it here in the time it takes for an incense stick to burn. I need it urgently."
Zhang Feng waved his hand, indicating for the two to leave. He was in a hurry to make the Doomsday Battery so that he could improve the hot air balloon.
The two understood and walked out of the door. They were Zhang Feng's students. Naturally, they knew what their teacher was thinking. It was a critical moment now. They couldn't help their teacher at all. They were even a little hindrance. Thinking of this, they felt a little ashamed. The only thing they could do now was to follow their teacher's instructions meticulously.
Seeing the two's backs gradually disappear, Zhang Feng retracted his gaze. He took out a cigarette from his waist and put it in his mouth. He lit it up and slowly smoked. He couldn't help but think of the idea of the Doomsday Battery.
Coal had a very low voltage, but if it was gathered more, the voltage would increase. It was similar to static electricity. With conductive materials such as copper wire, it was easy to draw out an electric current. With this electric current, it would be much easier to make hydrogen.
When he thought that hydrogen could be made soon, he couldn't help but feel a burst of joy. When the hot air balloon was filled with hydrogen, it would be a real hot air balloon. It wouldn't need to rely on airflow or wind at all. It would be easy to carry people.
Zhang Feng's mouth revealed a smug smile. It was as if he was celebrating for himself.
"Feng Zi, the coal has all been broken. What should we do now?"
Cheng Chumo, who was squatting on the ground, looked up at Zhang Feng and asked.
Zhang Feng took the cigarette butt from the corner of his mouth and glanced at the coal on the ground. Not bad, all of them were thumb-sized. It should be useful.
"Find a coarse cloth and wrap the coal. Remember, don't let it come into contact with water."
He had to instruct these things clearly. Otherwise, if they were careless and messed up, it would be a big loss.
"Okay."
Zhangsun smiled and took a piece of coarse cloth from the side to bandage the coal.
Everything was almost ready. He only needed to wait for Ma Zhou and Hao Chujun's experimental materials. After about an incense stick's time, the two people, who were anxiously waiting, staggered back. They were still gasping for breath. It seemed that they were very tired.
"Come, sit down and take a rest."
Zhang Feng greeted him with a face full of concern. Even though the experiment was important, he couldn't neglect people.
"En … Teacher, I've brought it back."
Ma Zhou took out a package from his arms and was about to hand it to Zhang Feng.
Zhang Feng took it and opened it in his hands. All kinds of metal equipment appeared in front of him. There were copper wires, iron wires, all kinds of iron awls, cotton cloth, Mitsubishi bayonets, iron blocks, and so on. In any case, there were all kinds of things that he could think of.
"Ma Zhou, Hao Chujun, where did you rob? Why did you bring this thing back? "
He glanced at the package and felt a little disdainful. Most of the things inside were useful, but there were many that were completely useless. He felt that these two had gone there to rob. But on second thought, with just them? Hehe!
"Teacher, even if you give us the courage, we wouldn't dare."
Hao Chujun sat on a stool with a bitter look on his face. "This was all given to me by Algernon."
"Algernon?"
Zhang Feng frowned. "I didn't ask for cotton cloth."
"Teacher, we listened to your orders and went to find Algernon. But when he heard, he gave us all these things."
Hao Chujun felt wronged. It was as if Algernon had done something to him.
"Forget it, forget it. It's better than nothing."
Zhang Feng waved his hand and didn't mind. Then, he glanced at everyone. "Come, let's start the experiment. Tie Niu, pour the coal into the metal jar. Ma Zhou, fill it with salt water. Let's start immediately."
"Wait."
Cheng Chumo raised his right hand and stopped them.
"Tie Niu, are you f * cking itching for a beating?"
Zhang Feng glared at Cheng Chumo. He was a little unhappy. The experiment was about to start, and this f * cking bastard had come out to cause trouble. He shouldn't have brought him along.
"Feng, you can do the experiment. Can you let us go up to the sky?"
Cheng Chumo said hopefully. He thought that he could go up to the sky after pulling the coal back. Who would have thought that he would have to do the experiment now?
Although he had already gone up to the sky, he still couldn't forget that beautiful scene. Of course, that was only one of the reasons. Most importantly, he was a member of the Cheng family and the son of Cheng Yaojin. What kind of person was Cheng Yaojin? The famous Lu Guogong. As the son of a Guogong, he should have been carrying this honor since he was young. However, which young man wasn't arrogant? How could he live under his father's shadow every day? He even had the thought of surpassing his father.
However, his father's glory shone on him all the time. He couldn't keep his eyes open. Since he couldn't surpass him, he might as well be a salted fish. Wasn't his father known as the Devil Incarnate? Then he would be the biggest playboy in Chang 'an.
Just like that, he stayed in brothels and taverns every day. He was just short of getting two new kidneys. Until Feng Zi appeared and encouraged him to experiment with phosphate fertilizer and build a water wheel. Otherwise, he would be useless.
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