Start of the famine: Take the crazy batch of sisters to farm and make a fortune

Ding Xuewei undoubtedly found fault with this question, and the old man seemed to answer but did not give any definite information.

"Starting from the capital of our country, no matter whether you go east or west, you will eventually return to the original point." Ding Xuewei put down the pliers, picked out a piece of charcoal and drew a circle on the ground.

"When we were young, my grandfather said that the world we live in is the center of the sun, moon and stars. At that time, my grandmother said that the world is round, and we are just a planet around the sun." She didn't force them to believe it, but it wasn't Stop and draw back and forth.

Stop, a simple diagram of the solar system appears.

The world in the book is set based on the real world. Naturally, the sun, the moon, the stars, and the entire cosmology are all reproduced in the same way. She may not be able to describe this old lady perfectly if she talks about other things, but she can scare people when talking about the basic macrocosm.

"You may have been to many, many places, but you have not fully set foot in every corner of our world. Mr. Yang, you may find it ridiculous when I say this, but there are many things that a child like me can't imagine, nor You, a person who has not fully set foot in every corner of the world, can persist."

If the theory that the earth is round makes people laugh, then the solar system map makes people have to think.

Ding Xuewei is smart, but her smartness does not match the age of her environment.

Not to mention that the world revolves around the sun, even artificial hatching, pollination and other ideas are impossible to appear in her mind.

"Then tell me, what kind of fuel can make the flame temperature reach the temperature that can melt this material." The old man put away his sharpness, and returned to his previous kindness.

Ding Xuewei knew very well that she couldn't express herself at this time.

"With coal or gas."

"...Qi." The old man raised his eyebrows.

He can be sure that he has no idea what coal is. This gas sounds clear, but he can't imagine it.

The stove was too hot, Ding Xue glanced slightly and pointed not far away.

There was not only the reclining chair that Fang Heng sat on, but also a small square table and two wooden stools. On the square table was a set of excellent tea sets.

Ding Xuewei looked as if she was going to have a long talk, and both of them couldn't help but be influenced by her, and unconsciously, they followed her footsteps.

Three hours had passed, but Fang Heng's complexion didn't improve much. Besides, the old man wanted to know what strange things he could hear from Ding Xuewei more than he did, so he naturally sat on the wooden bench closer to her, leaving the reclining chair behind. Gave it to Fang Heng.

Fang Heng, who followed the two of them, looked at the two of them first, and then lay back safely.

"The grandmother said that this material is called stainless steel. Stainless steel has good corrosion resistance, hardness and strength. The disadvantage is that it is very difficult to manufacture. To make this material, ordinary charcoal is not acceptable, and coal or gas must be used."

"Coal is an ancient plant. It has undergone complex biochemical and physical chemical changes buried in the ground, and gradually formed a solid combustible mineral." She said this passage like a scripture, and her eyes were complicated: "Don't ask me what is a living thing. Chemical and physical changes, even if I ask, I can’t explain clearly... I don’t even understand these two things. It’s not the point, the point is that coal is a black combustible substance like a stone.”

"Compared to coal, gas is much easier to understand, and there are many types of combustible gas, the easiest to obtain is called biogas. Although this gas is easier to obtain than other gases, it is also more dangerous. Leaks can cause explosions, and flammable gas explosions are very dangerous." After memorizing the scriptures, he added: "The pipeline for transporting biogas can be made of copper, iron, gold, or silver, but rubber is the best."

"This rubber is the white sap secreted by a tree called rubber tree when its skin is injured. This tree is a positive tree species that likes high temperature, sunny and humid places, and has poor cold resistance."

What coal looks like, the conditions needed for biogas, Ding Xuewei made it very clear, where to find these things, sorry, she doesn't know.

Ding Xuewei thought about making the old man believe in the existence of the old lady and be afraid of her existence, but he forgot the saying that it is better to travel thousands of miles than to read ten thousand volumes of books.

"Black combustible matter like a stone!" The old man chewed: "It's like a stone~"

Ding Xuewei felt that biogas was more feasible than coal, but she was startled by the old man's attitude.

"Elder Yang has seen it?"

If coal mines can be found, biogas is not a good choice.

Compared with coal, biogas is too dangerous.

Ding Xuewei's attitude made it look like someone who had seen coal before, and the old man raised his eyes.

Seeing that the old man had no intention of explaining, Fang Heng talked a lot: "The reason why Mocheng is called Mocheng is because there is a special and strange rock formation in Mocheng. This kind of rock formation is not only black but also extremely barren. No vegetation can survive in this kind of land." grow on rocks."

Ding Xuewei doesn't know if the ink city they are talking about is the northern border city of Rongshan Mansion. She has no idea if the coal is so poor that it cannot supply the nutrients needed for plant growth. The important thing is that the two of them are very familiar with the black stone in her mouth. .

"Can you bring some to show me?" With coal, not only can this stainless steel machete be reforged, but you can also experiment with blending better alloys, and have better weapons... The hero's friendship with himself should be Can save Pandi's life!

Many ideas are but an instant, and to provide weapons for the male protagonist must first find coal.

"If the black rock formation in Mocheng is coal, then this machete can be easily forged. The maximum temperature of coal is [-] degrees, and the melting point of this steel is [-] to [-]."

The two of them how she determined the temperature were unknown, but a little bit, the two of them became more certain.

Her imagination is different from ordinary people.

"Boy, leave immediately." Fang Heng stood up suddenly.

The old man did not stop.

"Then me?" Ding Xuewei said that she had something to do.

She didn't know how many black rock formations there were in Mocheng, but she didn't know how long it would take to go back and forth from here to Mocheng.

One and a half months can let her do a lot of things.

"Old Yang, why don't I go back first, and I'll come back when Big Brother Fang delivers the coal?"

If Ding Xuewei wasn't sure about her weight in the old man's heart before, she couldn't imagine how she would die.

Now, not to mention that she will not be attacked, at least not until the machete is smelted.

Ding Xue was slightly more confident, so she naturally became more courageous.

The old man was not as easy to talk to as she thought.

"Kneel down." He was extremely serious.

Ding Xue's heart skipped a beat.

"The old man is proud of himself, and he has never thought about accepting apprentices. You, the old man will give you a chance."

I decided to accept you as an apprentice, you should be grateful.

Ding Xuewei never thought of being a teacher, let alone a blacksmith.

Silently, she raised her arms.

Her movement was too obvious, the corner of the old man's mouth twitched, maliciously startled: "I didn't despise you, you dare to show me face. I tell you, your old grandmother is not in the territory of Daxia now, don't even think about using her Suppress Lao Tzu."

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