Datang: It's a showdown, my son-in-law is going to rebel!

Chapter 143 Explained
Li Shimin was stunned by Fang Qi's words, and then Fang Qi continued: "You know, Datang is a city, and others don't need to aim at the enemy, they just need to throw it at the city of Datang. The loss will be even greater!"

Li Shimin fell silent after hearing Fang Qi's words.

He didn't think about these things, he only thought about how cool he was.

I didn't expect what I would do if someone else used the same thing on me.

If you are locked by others, how should you break the situation?

Li Shimin thought for a while, then gave up.

He only thought of offense, not defense at all.

What he wants to deal with are nomads, and nomads don't have any cities.

Datang has its own city.

When a city is attacked like this, it is almost powerless to resist.

At that time, Datang's losses will only be even greater.

"Can you do anything?"

Li Shimin looked at Fang Qi.

Fang Qi shook his head, and then said to Li Shimin: "There is no way for now, father, if we want to use this thing, we must first have a defensive way, otherwise, we can't use this thing."

After Fang Qi's persuasion, Li Shimin finally gave up.

Not long after Li Shimin left, someone from the palace came and called Fang Qi over.

Li Chengqian was lying on the bed, nothing happened, he just wanted to have a good chat with Fang Qi.

Fang Qi came to the imperial hospital and met Li Chengqian.

"Fang Qi, tell Gu, why is the power of fusion of the same thing so much greater than the original one after being ground?"

Li Chengqian had always had a doubt in his heart, he didn't know why this happened.

After grinding, the combined power is much stronger than the original power.

It was simply shocking. The scene at that time was imprinted deep in Li Chengqian's memory, making Li Chengqian feel terrified when he thought about it.

But he couldn't figure out why it was the same thing, why it suddenly became so powerful.

"Because after fusion, these things react more fully when they encounter fire."

Fang Qi said to Li Chengqian: "These things are originally solid, but after being ignited, these three substances react with each other, and finally produce a large amount of nitrogen and carbon dioxide, and the volume expands in an instant. It was originally a closed space. When the volume of the substance becomes larger, the internal pressure will increase, and the combustion will release a large amount of heat, causing the gas volume to expand further, and the pressure will become even greater. When the pressure exceeds the limit, the iron will be The ball exploded and released a huge amount of energy in an instant."

After Fang Qi finished explaining, Li Chengqian fell into a state of confusion.

What does Nima mean?

I didn't understand at all.

"What do you mean by that?"

Li Chengqian looked at Fang Qi, and said, "Can you say something that I can understand?"

"..."

Fang Qi looked at Li Chengqian, and after a while, he said to Li Chengqian: "I was planning to teach you this thing, but you are lying on the bed like this, and you probably won't be able to attend classes for a long time. I'll take care of it." Let me explain to you.

To put it simply, there are three states of matter in this world. Take water as an example. In winter, water freezes. As you know, ice is actually solid water, and normal water The state is liquid. After you boil a pot of water, if you boil it for a long time, the water will be boiled dry. Why is it dry?Because the water turned into a gaseous state, it flew away.Do you understand it?Everything exists in solid, liquid and gaseous states, and of course there are other states, which are too profound to understand for the time being.

These three states are common states. Of course, this explosion has nothing to do with the three states of matter. "

At first Li Chengqian listened with gusto, but Fang Qi's last words almost made Li Chengqian jump out of bed.

It doesn't matter, what the hell are you going to do?

"Next, I want to tell you that everything in the world is composed of molecules, and these things, through reactions, change the molecular structure and form another substance. The reaction is called a chemical reaction. In fact, this explosion is There's a chemical reaction involved."

Fang Qi said to Li Chengqian: "The main component of saltpeter is potassium nitrate, the main component of sulfur is sulfur, and the main component of charcoal is carbon. When the three substances of potassium nitrate, sulfur and carbon are ignited, they will burn in an instant. A reaction occurs, and finally becomes potassium sulfide, nitrogen and carbon dioxide.

Among them, nitrogen and carbon dioxide are gases, and the volume of the gas is quite large. Originally, there are only solids in the narrow space. When a large amount of gas appears, the pressure in the narrow space will become very large, and The external pressure is constant, and when the internal and external pressures are inconsistent, the pressure will be released and an explosion will occur.

In this way, when the powerful energy is vented, it will generate a wave of air that will directly destroy everything around it. Although this power is invisible, if it hits something else, it will be like a bull rushing over.

It was so violent that ordinary people couldn't resist it at all. "

After Fang Qi finished speaking, he looked at Li Chengqian and said, "Do you understand what I said?"

After hearing Fang Qi's explanation, Li Chengqian was stunned.

What kind of potassium nitrate, what kind of potassium sulfide, these things, Li Chengqian didn't understand at all.

"Fang Qi, what are those things you said?"

Li Chengqian said to Fang Qi: "Saltpeter is potassium nitrate, sulfur is sulfur, charcoal is carbon, and then what is that potassium sulfide? What is nitrogen? And that carbon dioxide?"

"..."

Fang Qi was speechless after hearing Li Chengqian's question, not knowing how to explain it.

This guy can't communicate at all.

"I'll tell you something simpler now."

Fang Qi looked at Li Chengqian, and then said: "Let me make an analogy, this iron ball is equivalent to the Yellow River, and the things inside are equivalent to the water in the Yellow River. After igniting the things inside, it will appear ten times, even Thousands of times the amount of water, what will happen if the Yellow River has a thousand times the amount of water it has now?"

Fang Qi looked at Li Chengqian.

"Break the embankment."

Li Chengqian still had this common sense, so he replied immediately.

"That's it. An explosion, you can think of it as a dike break, and the air waves rushing out, in fact, you can see it as a flood after the dike break. Water is tangible, but air waves are invisible, but the effect It's almost the same, can you understand now?"

"You said that earlier!"

Li Chengqian nodded immediately: "You said that earlier, didn't I understand? How could I understand what you said about potassium nitrate and potassium sulfide!"

"..."

Fang Qi fell into autism directly.

(End of this chapter)