To put it bluntly, the underground coal seam is actually an accidental igniting, which burns continuously for many years, and the surface is greatly affected. Some places cannot pass through at all. For example, in later places, there are such Fiery Mountain formed by the combustion of coal seams in Xinjiang, Inner Mongolia, Shaanxi and other places. This is the type of Flame Mountain mentioned by Ma Ye.

Thinking of this, Li Xiu began to explain the principle of the formation of the Flame Mountain. As a result, Ma Ye was also surprised after hearing this: "What do you mean by the Flame Mountain is actually formed by the burning of carbohydrate underground?"

"Carbonite is originally produced underground. Some of the carbohydrates are shallowly buried. They are easily ignited when exposed to wildfires and lightning strikes. Moreover, the underground carbohydrate reserves are large and can even be burned for a hundred years without extinction." Li Xiu explained with a smile again. He also saw it from later news. It seems that Xinjiang has always wanted to put out the underground fires of the Flame Mountain, so he has some introductions to the Flame Mountain.

"So that's it. If you don't say anything, I'm afraid I'll never think of Carbon." Mr. Ma said with great emotion at this time. He now feels like "listening to your words is better than reading for ten years."

"When it comes to carbonite, Uncle Ma, have you ever seen a carbonite mine in any place?" Li Xiu suddenly said with his eyes lit up. Just now, Mr. Ma asked him to think of a way to make money without distinguishing all seasons. At present, this carbonite is a very good thing.

"Carbonite, what are you asking about this?" Mr. Ma asked back in surprise again.

"Carbonite is a good thing. If there is a carbonite mine, it will be a continuous mountain of gold!" Li Xiu said with a smile. China is one of the countries with the richest coal reserves in the world. Deep coal mines are difficult to mine, but there are still many open-pit coal mines. These are all wealth given to them by God. It would be a pity not to do so.

"No, charcoal is of no use at all. Although it can be burned, even in the Han Dynasty, people used it to smelte iron, but the iron refined is charcoal and crispy and cannot be used as a weapon at all. As for the usual fireworks, it is even more troublesome because it is difficult to ignite and is also poisonous. It is said that some poor families cannot afford firewood in winter, so they picked up some carbohydrate and lit it for heating, but in the end the whole family was poisoned to death." Mr. Ma said, "A few fatal weaknesses of carbohydrate were listed in succession.

"Haha~, it is definitely not possible to directly smelize iron, but to process it into another fuel. As for the ignition of carbohydrate, there are also solutions. In the end, it is a bit unfair to be toxic. In fact, carbohydrate is the same as charcoal. If they are burned in a relatively closed environment, people will die in the end." Li Xiu laughed after hearing Ma Ye's words. Coal was discovered very early, but it still has to wait until the Song Dynasty when it was actually used on a large scale.

"I heard you say that, Carbonifer is really a treasure?" Mr. Ma said in surprise again at this time. He also knew that Li Xiu would not deceive him in such a thing.

"That's of course, but we must first find a carbonite mine that is easy to mine, otherwise everything will be empty talk!" Li Xiu nodded affirmatively again, and then mentioned the carbonite mine again, which is the foundation of everything.

"No need to look for it. I know that there is a Black Stone Mountain in Ningzhou, which is actually an open-air carboniferous mine. I have stationed troops there before and have a very good understanding of the terrain there. Judging from the area of ​​the Black Stone Mountain, there should be a lot of carboniferous stones inside!" Mr. Ma deserves to be knowledgeable and has a very knowledgeable place to say without thinking.

"Ningzhou? Is it a bit far away? Are there any coal mines near Chang'an?" Li Xiu said worriedly when he heard this. Ningzhou is next to Qingzhou, and it takes a day to ride a horse to Chang'an. If the transportation is definitely slower, the freight for carbon is increased and the cost will definitely not be reduced.

"Ningzhou is not far away, right next to the Jing River. If mined, you can put the carbide on the ship and go down the river soon to reach Chang'an." Mr. Ma deserves to be the general who led the troops to fight, and immediately thought of the best transportation route, but then he said with some doubts, "Boy, can you really turn carbide into treasure?"

"It's better to see it, it's better to hear it, it's better to have someone come back with some charcoal. I'll show you!" Li Xiu said with a smile. Sometimes it's hard to convince others by relying on his mouth, so it's easier to prove it with reality.

"No problem, I'll ask someone to find Carbonite!" Ma Ye nodded immediately when he heard this. He was also very much looking forward to Li Xiu's ability to turn Carbonite into treasure, so he stood up and left.

"Wait a minute, I need a tool in addition to carbon, so please help me build it!" Li Xiu said, asking Yuechan to take the pen and ink, and then he began to draw a tool pattern on the paper and also draw a decomposition diagram of the tool. The structure inside is not complicated, and it should be no problem to be made with the Tang Dynasty craftsmanship.

"What is this thing for?" Mr. Ma took the drawing and looked at it for a long time but couldn't figure out the purpose of this thing. He couldn't help asking.

"Hehe, keep it confidential for the time being, you will know when it is done!" Li Xiu smiled mysteriously. Seeing Li Xiu deliberately keeping him in his arms, Ma Master couldn't help but laugh and scold him, then stuffed the drawings into his arms and went out. He has always been a hot and enthusiastic person. He must do it when he has a decision, even if the sun is scorching outside, he can't stop him.

When Li Xiu returned to the bedroom of the inner house, he found that Princess Pingyang was humming a small song and coaxing Qi Niang to sleep. Li Chengdaoze and several maids such as Helmet were playing cards outside. He came to Li Xiu and learned a lot of things, and cards were one of them. Moreover, Li Xiu did not forbid him to play like other teachers, as long as he did not delay his study.

Li Xiu came to the bedside of the bedroom with a slight touch, looked at Qi Niang on the bed, but found that she was asleep. Princess Pingyang smiled shyly when she saw him coming in, then made a hand gesture to silence him, and then stood up gently. Then the two of them left the bedroom together.

"It's a trouble for the princess!" After leaving the bedroom, Li Xiu thanked Princess Pingyang. Qi Niang had no mother since she was a child. Although she had the eldest brother Li Xiu, she could not make up for her maternal love in her life. However, since she came here, Princess Pingyang has always played the role of mother in her life.

"It's nothing. Actually, I really hope to have a daughter as cute and sensible as Qi Niang." Princess Pingyang suddenly realized that her words were a little inappropriate, and she shyly lowered her head.

"It's definitely!" Li Xiu saw Princess Pingyang's shy look, and he showed a decisive expression in impulse. No matter how big the gap there was between him and Princess Pingyang, it could not stop him! I just don't know how the bearded guest was preparing?

At the same time, in a prosperous port at the southern end of Zhuzi Island, the bearded guest looked at the countless sea boats staggered on the sea, and could not help but feel a little bold in his heart. Even if he could not set the Central Plains, he was the well-deserved king on this sea that was wider than the land!

"Father, the ships and supplies are almost ready. When will we set sail?" At this moment, a young man behind the bearded guest spoke, and the man was extremely handsome and even more gorgeous than a woman. This person was Zhang Shiyi, who had been to Li Xiu's place.

"No hurry. Now is the windy season on the sea. The risk of going to sea is too great. As for the sea surface calms down in autumn and winter, it is not too late to go to sea again." The bearded guest said calmly. His years of sea life have already made him more familiar with the climate at sea than anyone else. When going to sea, you must have both the right time, the right place, and the right people, otherwise something will definitely happen.

"Father, America is long and you still need your family to stay, so why don't you let me go on your behalf?" Zhang Shiyi suddenly said at this time. In fact, he was still worried that his father was getting older and older. Although he was still very strong, he was not as good as a young man after all. But he didn't dare to say this because he knew that his father hated others saying that he was old the most.

"No need, as long as I don't die, there will be no trouble at home!" The bearded guest said stubbornly. On the surface, this time he went to America to find high-yield crops such as sweet potatoes, but for him, he was looking for a new goal of conquering himself. Only in this way can he feel that he has the meaning of living.

Seeing that his father disagreed, Zhang Shiyi sighed helplessly, and then had to say, "Okay, since my father is going, I will go together too. This way, I can take care of my father's daily life, and secondly, I want to increase my knowledge!"

"You want to go too?" The bearded guest turned his head and looked at Zhang Shiyi in surprise when he heard this, but he nodded quickly and said, "Okay, it's time for you to go out to see the world, but you don't know how many dangers you will encounter when you go to America this time. You must be mentally prepared!"

"Hehe, father, have you found the ocean current that Li Xiu mentioned? Theoretically, as long as we enter that ocean current and prepare sufficient food and water, even a raft can cross the ocean to reach the Americas, not to mention that we have the best sea boats in the world. I believe that it is absolutely no problem to reach the Americas!" Zhang Shiyi said confidently.

"Hehe, yes, with that current, we are indeed more confident to reach America!" The bearded guest couldn't help but smile easily when he heard this.

Never underestimate the function of ocean currents, especially during sailing ships, ocean currents are actually equivalent to super-large automatic conveyor belts on the sea. As long as you find the right ocean current, it can quickly transmit the ship to the corresponding destination without even considering the wind direction.

However, after laughing, the bearded guest looked at the sea in the east but fell into deep thought. Even though he had prepared for the fulfillment in advance, he was still not sure about this trip to America, and he didn't know when he would come back. However, the more he did this, the more excited he felt, because he was a restless person in his bones! (To be continued.)
Chapter completed!