This thing.
Yu Shinan and the others were completely dumbfounded.
That thing was indeed in the textbook written by Zhang Feng, but this textbook was divided into two parts.
The first part of the textbook was only elementary physics knowledge, and most of it was mathematics knowledge. This was a course open to everyone. As for aerodynamics and the like, only Li Chengqian, Ma Zhou, and the others could learn it. Only those who had stayed in the academy for more than half a year and were talented enough were qualified to learn more advanced things.
But as for what Li Chengqian and the others were learning now, it was not something that ordinary people could learn. As for the few of them, they really didn't know about it.
At this age, who would be bored enough to study this brain-burning machine?
But at this time, when they heard Zhang Feng say this again, Yu Shinan and the others really couldn't sit still.
Without waiting for them to speak, Li Chengqian hurriedly asked, "Fengzi, this thing of yours, can it be made by the natural collision of water and lime?"
"More or less." Zhang Feng nodded and said, "There is another layer of meaning. You have seen this lime before. The main thing is that it expands when it meets water, producing infinite tension."
"You all know about the tension, right?"
Zhang Feng pointed at the limestone on the ground. He picked up a piece of limestone and threw it into the water. In an instant, a large piece of limestone emitted bursts of white smoke in the water. In front of everyone's eyes, it instantly grew larger.
At this time, Zhang Feng said again, "Our glass bottle is only so big. This thing will expand infinitely when it meets water, and this bottle is a thing that restricts it. Once its pressure reaches a critical point, it will instantly produce a big explosion."
"Then, it will explode like a pig's urine bubble. As for the thing inside, at this moment, it will use the principle of thermal expansion and contraction of water and air to explode instantly!"
As Zhang Feng said, he once again put some lime into a larger glass bottle and threw it into the lake.
In a moment, that bottle once again burst out a burst of ear-piercing explosions.
In an instant.
Everyone was shocked again. ,
This was the first time they had seriously watched the creation of this thing, as well as the entire process of its explosion.
At this moment, everyone couldn't help but gasp.
Ouyang Xun couldn't help but ask, "Kid, did you prepare this for Long Youdao?"
Ouyang Xun naturally knew about the Longyou Dao. In addition, the iron had not been found during this period of time. At this time, Zhang Feng suddenly took this thing out.
Zhang Feng really didn't know about this.
He really had no patience for fishing. Most importantly, they were on the mountain. He had only thought of this in a flash of inspiration. He only wanted to improve the meals for Li Chengqian and the others.
However, after hearing what Ouyang Xun had said, he immediately changed his mind.
Zhang Feng suddenly slapped his head and said, "That's right! How could I have forgotten about that? "
Ouyang Xun's expression froze when he heard this.
"You didn't think of it?"
Zhang Feng spread his hands. "I really didn't think of this problem. But thanks to you, if not for you, this Long Youdao matter would really be a headache!"
"Come, come, come, Tie Niu, go get me some fish and firewood. Today is a memorable day. Let's eat and drink while we talk about our new plan!"
Ouyang Xun's face was as black as the bottom of a pot. He also knew about what happened at the foot of the mountain. Although Zhang Feng didn't know, they all knew clearly.
Seeing this.
Ouyang Xun and Yu Shinan looked at each other. Yu Shinan waved his hand and said, "Fengzi, come, let's talk about something serious! Li Gan, go and find your father! "
Zhang Feng knew what Yu Shinan and the others meant, but he was also a little confused. Wasn't it just a homemade bomb?
Why were they so cautious?
Actually.
Once this thing was completed, he would be able to do it.
That was to be honest.
This thing could really become a sharp weapon for Long Youdao.
Zhang Feng didn't hesitate. He asked Cheng Chumo and the others to call Ma Zhou and the others over. After all, that experiment had been done for a long time, and Zhang Feng didn't know how it would turn out.
But about this bomb and the principle, he still had to explain clearly to them, so that they wouldn't talk about it one after another.
Troublesome.
While waiting for the others, Zhang Feng was also pickling fish and picking out the fish that he wanted to eat with the lotus leaf bar. He also found the people in the cafeteria and threw the fish to them, explaining how to make paper-wrapped fish.
At this moment, Li Shimin rode a white horse and hurriedly followed Li Chengqian up the mountain.
As soon as he saw Li Shimin, Zhang Feng asked the others to start roasting fish according to his instructions. Then he slowly entered Yu Shinan's villa.
As soon as he entered, he found that no one was sitting here. Instead, everyone was looking at him with a serious expression. However, Niu Jinda, Yuchi Gong, and Chen Yaojin were extremely excited.
Before Zhang Feng could speak, Li Chengqian hurriedly closed the door and ordered Shiwa and Gao Kan to guard the door. However, Zhang Feng refused.
In the end, Li Shimin had to let Xiao Guizi lead a large number of guards to surround the entire villa.
At this moment, Li Shimin asked seriously, "Fengzi, I heard that you just made something amazing on the mountain?"
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