Hearing this, Cheng Chumo didn't know what to say. He could only reply with a smile, "Go on, I'm listening."
"How did you come down just now? Also, how did you control your left and right in the air? Was your direction affected? "
Zhang Feng asked seriously. He wasn't in the mood to joke with this guy because it involved the modification of the hot air balloon, and the hot air balloon involved people, so he couldn't be careless.
Seeing Feng Zi so serious, Cheng Chumo also stopped smiling and began to recall the feeling in the sky just now.
Everyone probably also understood the seriousness of the matter, so they didn't disturb and didn't dare to speak. They just silently warmed themselves by the fire to vent the emptiness in their hearts.
After less than half an hour, a smile appeared on Cheng Chumo's face again. He exclaimed, "I got it."
As soon as his voice fell, another chopped firewood flew over, "Do you want to die? Lower your voice."
"Oh, oh."
Cheng Chumo nodded foolishly, then looked at Zhang Feng and smiled, "Feng Zi, I just thought about it. When I was in the air, my direction was completely affected by the wind. I couldn't do anything about it. When I came down, it was easier. The fuel was almost used up, then I slowly fell down. I even fell on my butt and it still hurts now."
After saying that, he touched his butt and said with a pitiful look, "If you don't believe me, let me show you."
"Get lost."
Zhang Feng frowned and glared at Cheng Chumo, then fell into deep thought.
If it was like what Iron Bull said, a person couldn't control their direction in the air and was completely carried away by the wind. One had to know, this guy was more than two hundred pounds. If such a heavy fool couldn't control himself in the air, then there was no need to talk about other people. Although he was tied with ropes, it was for safety.
It seemed that he had to install something to control the direction of the hot air balloon. Otherwise, the hot air balloon would be very dangerous in the future.
Just as he was thinking about how to solve it, a scream woke him up.
"Hiss … Ah …"
He saw Hao Chujun hugging his hands and screaming in his original position. It seemed that he was in pain.
"What happened to you?"
Zhang Feng stepped forward and asked with concern.
"Teacher, when I picked this coal just now, I felt a sharp pain. That's it."
Hao Chujun showed his right hand to Zhang Feng and felt a little helpless.
Zhang Feng looked at Hao Chujun's right hand. There were no external injuries on the surface. It was not a stab wound, and there were no marks. What was going on? He glanced at the burnt coal, picked up a wooden stick, and extended it towards the coal.
"Teacher, please wait."
Hao Chujun suddenly stood up. He looked at Zhang Feng and said, "Teacher, this stab is very painful. Please don't try it. If you insist, let me do it."
Zhang Feng waved his hand and refused, "It's alright. I know what I want to know."
After saying that, he didn't wait for a reply and directly stretched the wooden stick towards the coal. At this moment, he felt a sharp pain, as if he had been electrocuted.
No, this was electricity.
However, this voltage was very low, just like static electricity.
Could it be that there was a voltage on the coal?
He found it hard to believe, but he still decided to try again.
The wooden stick stretched towards the coal again. It was still the same feeling. Voltage, it was voltage.
His eyes protruded, and his cheeks were a little red. He didn't know how to describe his feelings at this moment. Should he cheer?
He reckoned that this guy in front of him didn't even know what electricity was. He could only stroke his chest and take out a cigarette with his trembling right hand. He put it in his mouth and slowly lit it. He looked at the coal excitedly.
At this moment, he remembered the Doomsday Battery in the future. That thing was made by using the low voltage on the coal.
Now that he had discovered this thing, wouldn't he be able to make the Doomsday Battery?
With the Doomsday Battery, wouldn't hydrogen be at his fingertips?
Thinking of this, he felt a burst of excitement. His hand that was smoking kept trembling.
Hao Chujun, who was at the side, saw the abnormality. He quickly went forward and asked, "Teacher, what's wrong?"
"Electricity, this is electricity."
Zhang Feng could no longer suppress the joy in his heart and exclaimed.
However, the people around him were confused. They didn't know what electricity was at all. They asked curiously, "What is electricity?"
"Electricity, electricity is …"
Zhang Feng kept stomping his feet. He didn't know how to explain it to everyone.
Could it be that electricity is a natural phenomenon? It's a natural phenomenon?
Wouldn't it be more confusing the more he explained?
"What is electricity?"
Cheng Chumo was a little impatient. He felt a little ashamed to ask.
However, Zhang Feng was more disgusted by this kind of shameless question because he couldn't explain what electricity was. He had to start fooling everyone, "Have you seen lightning before?"
Everyone nodded.
Zhang Feng slapped his thigh and exclaimed, "Lightning, that is electricity. It's just that it's a little different from the electricity just now."
"What's the difference?"
Ma Zhou tilted his head and asked.
"You …"
Zhang Feng originally wanted to scold him, but when he remembered that this guy was his student, he held it in. He silently said in his heart, "This is an idiot. Don't bother with him." Then, he put on a generous smile on his face and stroked Ma Zhou's head, "Good boy, this isn't something you can get involved in now. You'd better study the Three Character Classic."
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