Before Zhu Cixuan could answer, Emperor Chongzhen said seriously: "The future days will change the situation that has not changed much in thousands of years. What I just said is by no means an exaggeration, do you remember it?"

"My son, remember!" Zhu Cilang did not dare to be negligent and quickly replied respectfully.

At this time, he was indeed a little shocked. He originally thought that the Ming Dynasty had become stronger again, but unexpectedly, there were still many enemies, and the world was still not peaceful!

As for those cabinet assistants, etc., although they had more experience than the prince, their vision was actually limited to the country, at most the surrounding area. Now Emperor Chongzhen has raised their vision to the world, and many of them have been in deep thought.

After telling the prince, Emperor Chongzhen walked to the side of the Fran machine cannon, and then said to the prince: "You should know the advantages and disadvantages of this Fran machine cannon and the general cannon. Then I would like to ask if the advantages of these two cannons cannons cannons be combined?"

Hearing this, Zhu Cilang couldn't help but turn around to look at the crowd around him, wanting to find someone.

When Emperor Chongzhen saw him like this, he knew that he was looking for a military battle. He had to say that he was an expert in firearms. If he said he could, that was ok, and if he said he could, that would probably not be able.

So Emperor Chongzhen did not urge the prince to look at him.

Zhu Ciyang quickly found Bi Maokang according to the official ranking. However, Bi Maokang was lowering his head and thinking about things, and he didn't get any prompts. He remembered that his father was asking questions, so he had to turn around obediently and answered according to fact: "I don't know!"

In response, Emperor Chongzhen nodded and said, "It doesn't matter if you don't know, but if you become an emperor in the future, you must know how to guide your ministers to work in a good direction. For example, what I just said, can these important military and national weapons have the advantages of both? Even if they can't be solved for a while, you can set goals and let your ministers try to solve them. If they can really be invented, then my Ming Dynasty artillery will definitely increase its power!"

"My son understand!" After hearing this, the prince immediately responded respectfully.

After hearing this, Emperor Chongzhen walked to the next ornament, but it was a teapot placed on the stove.

When everyone saw this scene, they became curious again. The problems caused by the artillery before were all related to the important weapons of the military and the country, and it is understandable that the emperor cares about it. But what is the reason for the emperor to teach the prince now in this teapot?

It is impossible to say that it is good for the prince to drink more tea? It is impossible to let the prince not drink tea and waste tea?

No matter what I think, no one can guess what the emperor wants to use this teapot to explain! Of course, if there are people who traveled through time four hundred years later, they might be able to guess it.

"Burn fire!" Emperor Chongzhen gave a light command, then turned around and walked towards his imperial throne, sat down and rested first.

When the others heard this, they looked at each other. What is the situation? Could it be that after the emperor boiled this teapot, each of them gave a cup of tea to warm up?

Not long after, the water in the teapot boiled, and a stream of white air emerged from the spout.

Seeing this, Emperor Chongzhen asked the prince: "The water in this teapot has boiled. Do you have any ideas?"

Hearing this, not only the prince, but also others stared at the teapot. However, no one noticed that there was something unique, and he felt even more strange.

The prince was so strange that he always had to answer when his father asked, so he had to tell the truth: "The son-in-law looked at it and saw it elsewhere, but he seemed to be no different!"

After hearing this, Emperor Chongzhen turned around and nodded to Lan Tianbao who was serving him.

So, under the attention of everyone, Lan Tianbao walked to the boiling teapot, took out a special plug from his sleeve, blocked the spout tightly with a little effort, and then retreated.

Emperor Chongzhen then said to Zhu Cilang: "She keep reading and tell me if you have any ideas!"

After hearing this, Zhu Cixuan agreed and stared at the teapot curiously, not knowing what strange things would happen? At least something strange should have happened, so there should be no idea!

The others in the courtyard were also curious. Some of them had never seen teapots, and some had seen them, but no matter who they were, they didn't understand what would make the emperor ask the prince to have ideas?

After a while, the lid of the pot was pushed up, revealing a gap, and then it fell back. After waiting for a while, this was the only situation, which was repeated over and over again. Apart from that, no other strange situation happened.

Zhu Cilang is not the prince who is not diligent in all four bodies and does not distinguish between grains. He has seen tea brewing before. After looking carefully for a long time, he found that there is no difference. So he became depressed. Why is his father's lecture today so different from those ministers before, and he can't even find any clues. What should he do? His father is still waiting for an answer!

Finally, he had no choice but to report to Emperor Chongzhen again: "Father, my son and I looked at it for a long time, but I didn't find any difference. It was the same as the ordinary one. This... I really had no special thoughts!"

Emperor Chongzhen did not scold him after hearing this. This made the prince feel more comfortable, so he heard Emperor Chongzhen say to him: "You go over and gently press the lid of the pot with your hand, but be careful not to get scalded by the steam!"

Hearing this, Zhu Cilang was a little curious and grateful, so he bowed and agreed and walked over.

Everyone around him stared at him, wanting to know what special things would happen next? Some of them knew what would happen if they held it with their hands. But they didn't think it was special, so they were also curious.

After Zhu Cixuan walked over, he carefully pressed the lid of the pot. Then, he felt a force pushing the lid of the pot, so he continued to press it with some force, but the force against the lid of the pot gradually became larger and larger. If he forced him to press it, he could only continue to increase the force.

After a while, he did not dare to press it anymore, because Emperor Chongzhen had instructed him to gently press the lid of the pot.

So he let go, and the lid of the pot was pushed higher than ever before, and then fell back.

Turning around, facing Emperor Chongzhen, hesitated for a moment and said, "Father, there seems to be someone in this teapot pushing the lid hard. As long as the son-in-law uses force, he will also push the lid hard, and he must push the lid open."

He was a little uncertain, not sure if his father had any idea of ​​this situation. However, apart from that, he really had no other feelings, so he had to say it all.

After hearing this, the others turned to look at Emperor Chongzhen, and wanted to know whether the emperor asked the prince to do this, was it really just to let the prince say this, or was there another mystery?

Emperor Chongzhen nodded and said, "Yes, what power is against you in this teapot?"

"Is it... the boiling air after the water boils?" Zhu Cixuan hesitated for a moment, feeling confident, but he didn't dare to be completely sure, so he had to answer with a hint of uncertainty.

"Yes!" Emperor Chongzhen immediately gave him a positive reply, "When the water boils, it will become gas. This gas has nowhere to go in the closed container. The more it accumulates, it will put a pressure on the container, just like someone is blowing air. Between the lid and the teapot, the weight of the lid itself falls on the teapot. When the pressure becomes greater and greater, exceeds the weight of the lid itself, you can push the lid up. If you use force, it is equivalent to increasing the weight of the lid. The gas inside is only increasing and increasing, until it exceeds the force you exert and adds the weight of the teapot to push the lid up."

"If you have strong enough strength to keep pressing the lid of the pot to prevent the gas from running out, if the teapot is not firm enough, the power of the gas inside will burst out the teapot." Emperor Chongzhen said this, stood up, walked slowly to the prince's side, and then pointed to the teapot, and continued, "Look, as long as the gas inside runs out, there will be no enough force, and the lid of the pot will fall down again. Isn't it?"

"My father said, my son has received the teachings!" Zhu Cixuan replied respectfully after hearing this.

Although he had never thought about this before, he could understand it as soon as Emperor Chongzhen said it.

However, he was still a little puzzled, not knowing why his father told him this. I can't say that this is also related to the important weapons of the military and the country?

Most of the others also knew what Emperor Chongzhen said. They were confused with the prince and didn't know what the emperor wanted to explain. They understood that the emperor could never just explain what he said!

Sure enough, Emperor Chongzhen then pointed to the teapot with his hand and said, "So what do you think about this situation?"

"..." Look, it's here, it's true, and the emperor asked another strange question!

Everyone, including Zhu Cixuan, was speechless about this. What else can you think about this situation? That's it!

Zhu Cilang was stunned for a while, and finally had to answer according to the truth: "My son is stupid and has no idea!"

After hearing this, Emperor Chongzhen turned around and looked at the important officials in the court, the young prince accompanied him to study, and other ministers of various colors, and asked them, "Where are you, do you have any ideas? Can you tell me."

"..." Almost everyone lowered their heads when they heard this. They knew that there must be a mystery in it, but they just couldn't see it!

Just when Emperor Chongzhen was a little disappointed, he suddenly saw Bi Maokang stand up and said, "Your Majesty, when the water boils and turns into qi, it can be seen that the same water will turn into more qi. In this way, the teapot cannot accommodate it and has an outward force. Therefore, the combustion of gunpowder also produces a large amount of qi, so that the projectile can be shot out rapidly, or the gun chamber cannot withstand the force and explodes."

When the others heard this, they suddenly realized that the emperor set off artillery here, in fact, to remind him that why gunpowder has such great power is this!

Thinking of this, they all looked at Bi Maokang and secretly praised in their hearts. It was indeed worthy of being the most powerful firearm master in the Ming Dynasty!

However, Emperor Chongzhen naturally didn't want this answer. He didn't expect Bi Maokang to associate it with this and said it in a good manner. He smiled and nodded and said, "It's great that you can think of this!"

After complimenting, he suddenly changed his mind and said, "Do you have any other people? For example, from this, what can you do?"

When they heard this, even Bi Maokang knew that his answer was not the answer the emperor wanted, so they were even more puzzled. What other ideas could they have to do with such a simple thing?

Seeing that the surroundings were silent again, Emperor Chongzhen stopped judging them. It was estimated that they would never have imagined them, so he turned to the prince and said, "You just felt the force of the lid of this pot, because the gas will become stronger and stronger. So have you ever thought about how to use this force for people to use it?"

"Father, could it be that I shot the lid of the pot?" Zhu Cixuan thought for a while and replied uncertainly.

When Emperor Chongzhen heard this, he shook his head, turned around and walked back to his position to sit down, and then looked at the prince who was a little uneasy and said, "Bring the water to boil, a thrust will generate. This thrust will be within a controllable range. The thrust can be controlled according to the degree of fire. If you use other means to use this force, will this situation occur? As long as we control the thrust, we can make this thrust do things as we want?"

When everyone heard this, they were almost stunned and thought to themselves, this is OK? How to do it?

Emperor Chongzhen knew that if this layer of window paper was not penetrated, it would be difficult for anyone to see the beautiful scenery outside the window. Only when they were helped to penetrate, after such an example, would this matter be spread and the thinking about nature would increase in the Ming Dynasty.

So, without waiting for someone to come up with a one, two, and three, he nodded slightly to Lan Tianbao.

When everyone saw this, they couldn't help but pay attention to Lan Tianbao, wanting to know what the emperor said was the answer?

Lan Tianbao took out a roll of paper and slowly unfolded it with another eunuch. Suddenly, a pattern appeared in front of everyone in this huge roll of paper.

The paper roll is big enough and the pattern is big enough that even if there are many people present, they can almost see it clearly.

I saw that there was something else drawn on the burning teapot, forming a simple pattern. People with no experience needed to understand this picture.

Suddenly, they all realized that they could use this force like this.

But then, they had a doubt. Is this thing worthy of the emperor's use to teach the prince?
Chapter completed!