Zhu Hongsan looked at himself and remembered things, and only he could understand them. After the item on steel, three words were written to be studied.

Zhu Hongsan sighed, there are still fourteen years, and he is going to run away, not to mention it in the future, he can guarantee his life when he runs away. I have made a lot of money now, but I can't use my own words in this family, the money is in the hands of my mother, and I can only do some small development in the name of experiments, which is really troublesome without pain or itching.

But there is no way, Zhu Hongsan thinks that his mother will give him some money when he is twelve years old, after all, in the Daming Law, he can be legally responsible at the age of twelve (that is, he has to pay all kinds of taxes), and he can only be an adult at the age of fifteen.

So they all started to get engaged in the Ming Dynasty at the age of twelve, which is a good family background, after all, Zhu Hongsan, an old bachelor in his twenties, has also seen it. (Zhu Hongsan saw a post that the average age of Chinese before the founding of the People's Republic of China was thirty-five.) Of course, it is necessary to rule out wars, natural disasters and other causes.

But it is still credible that the average age of the ancients was between thirty-five and forty years old. At the time of the founding of the People's Republic of China, the average life expectancy of Chinese* was 35 years, reaching 67 years before 1978, and 75 years old by 2015.

Zhu Hongsan thought that there were still five years, and it was difficult. But you can't do nothing, you still have to prepare for the preliminary work, Zhu Hongsan looked at what was suitable for his own experiment in his notes. Muskets and artillery can't work now, and now Huguang is still basically peaceful, and it is not far from Fengyang for a clan to get this thing. Intelligence is not good, there are no suitable candidates, and military is not good, there are no candidates.

Originally, I wanted to take advantage of the east wind of changing houses to get dozens of orphans, and train them in the early stage, after all, military generals are in a hurry, but the old lady did not agree to change houses, or that sentence, age is a hard injury, Zhu Hongsan really can't wait to grow up to fifteen years old.

Zhu Hongsan's vision of using the small ironworks in towns and towns he had seen as a model, and the small steelmaking plants that produced about 200 tons of steel at a time were not the kind of iron-making workshops. It seems that there is only gunpowder left, and this thing is still feasible for small-scale experiments in advance.

Thinking of starting work, Zhu Hongsan spent three days on the street to collect materials. They were delivered to their homes one after another. Charcoal is good to say, sulfur saltpeter is a strictly controlled substance. Zhu Hongsan and Zhao Goudan ran five stores to get everything.

Zhu Hongsan's gunpowder production naturally skipped hundreds of years of evolution, and directly used the best ratio of black* gunpowder, 75% potassium nitrate, 12% charcoal, and 13% sulfur. Zhu Hongsan and Zhao Goudan first picked out the impurities in all the materials, and the purity of saltpeter was the second, and there were many stones in it.

First of all, the saltpeter is purified, and the process is very simple, similar to the purification of sugar. First, dissolve the saltpeter into the water, stir and heat it to filter out the impurities, the finer the filter, the better, and then heat and boil, and wait until the liquid level is only two-thirds of the previous one, and then reduce the amount of fire, which is high-purity potassium nitrate slowly precipitated into crystals.

Zhao Goudan looked very amazing on the side, and crystals appeared on the originally colorless water. Zhu Hongsan looked at Zhao Goudan and said, "How is it, it's fun, right?" Zhao Goudan nodded and said, "Is this the same as Snow Sugar?" Can you eat it? ”

"You can't eat this, you'll die if you eat it." Zhu Hongsan frightened.

"Sanwazi, you are so powerful, will you turn stones into gold, I have heard a lot of immortals."

"Not now, but in the future, when the mana is stronger, it will work." Zhu Hongsan didn't bother to explain it to him, how could he say it? Tell him about high school chemistry?

Zhu Hongsan saw that the water in the pot was almost gone, and motioned to Zhao Goudan to extinguish the fire. Looking at the potassium nitrate in hand, I couldn't be interested, and twenty catties of saltpeter purified nearly ten catties of potassium nitrate. This is not 100% potassium nitrate, there is still some sodium chloride in it, Zhu Hongsan estimates that the purity is about 90%, ten catties is ten catties, let's do some first to see how the power is.

Zhu Hongsan weighed charcoal and sulfur according to the best ratio. The best charcoal picked by charcoal, in fact, the best use of willow charcoal for gunpowder, but after going around the city for a long time, I had to use this ordinary charcoal instead. Sulfur is natural sulfur and has good purity.

First pick out the charcoal that is not well charred, and try to pick the charcoal blocks that are not as thick as knots. Then divide the three things and crush them with a small mill, the more broken the better. Told Zhao Goudan to grind charcoal and sulfur, and Zhu Hongsan to grind potassium nitrate by himself, this thing is explosives, and it will explode if you can't get it.

Crush the crystals little by little, and then sift them with a fine basket before grinding in the sieve. After finishing it, I saw that Zhao Goudan was almost done. Finally, weigh the weight and try to get the proportions right. Then stir the three powders, adding water while stirring, to make a dough cake. Use a ruler to measure and cut into long strips of the same size, about one centimeter in length, width and height, and set aside to dry.

After doing this, Zhu Hongsan wiped his sweat, and now he is half the success. The next step is to go to the blacksmith shop and make a few tin cans.

Two days later, Zhu Hongsan saw that the gunpowder blocks were basically dry. Actually, that's pretty much it. But Zhu Hongsan, in line with the mentality of doing the best, also polished the gunpowder particles.

The method is very simple, use a large dustpan, put the gunpowder particles inside, put a little coarse river sand of the same size sieved out with a sieve, and Zhu Hongsan and Zhao Goudan began to shake clockwise. Soon it was polished. The next step should be to pick out gunpowder particles of the same size, and the other unqualified ones should be reworked.

But Zhu Hongsan couldn't wait, and he didn't pick the size, and put it into a custom-made iron can. The size of the iron can is about the same as the Coke bottle of later generations, and it is too big for a person to throw far, yes, Zhu Hongsan is ready to make a hand * grenade.

A total of four jars were made, two with polished gunpowder balls, one with unpolished gunpowder blocks, and one with traditional gunpowder, which I bought at a firecracker shop on the street.

After installation, the mouth of the can is sealed with cement, leaving a lead, and it is done. It's past noon, and the weather is pretty good. Zhu Hongsan felt that it was better to choose a day than to hit the day, so how about experimenting with his new hand grenade today.

As soon as he was about to go out, he saw the fat man Qian Lide coming, and he was happy. When he saw Zhu Hongsan, he said: "Big brother, my mother really did what you said, that herb is still useless, my aunt was sold by my father, and the child was killed." ”

Zhu Hongsan nodded and said, "Your uncle is here?" ”

"Here, all five uncles are here, and my grandfather is here. Give my father a scolding and scold him for being ungrateful, forgetting how the family property came from. My eldest uncle also asked my father what reason he had for divorce his wife, was it unfilial or undescended? My father was speechless when asked.

In the end, my mother took out the letter written by the servant, and my father aborted the aunt in front of my grandfather and uncle, and then had her sold. I was a little scared when I looked at it. Qian Lide said foaming at the mouth.

Zhu Hongsan said: "You have to pay attention, your father has no way back now, and you will suffer in the future, and your father will beg you strictly." ”

Qian Lide opened his mouth wide, and asked for a long time: "What should I do then?" ”

Zhu Hongsan said: "What should I do? Be a good person, you're twelve years old, don't just want to play, you should also think about the future. ”

Qian Lide nodded, saw me and Zhao Goudan each taking two iron cans and asked, "Where are you going?" ”

Zhu Hongsan said: "Let's go out of the city, will you go?" ”

Qian Lide nodded hurriedly: "Okay, I came out to play with you." ”

After the three of them discussed, they went out of the city together, but they didn't expect to meet another person at the gate of the city, that is, Ma Xiaofang, whom Zhu Hongsan didn't want to meet. Ma Xiaofang has developed rapidly in the past two years, and now she is almost 1.6 meters tall, and there is an adult man who is tall, with a good face, long legs and a thin waist, and his chest is like a small steamed bun. Zhu Hongsan saw it and thought in his heart: "You can eat it in a few years." ”

Ma Xiaofang saw these three people from a distance and hurriedly walked over and asked, "What are you three doing?" Where are you going? ”

In the past few years, Ma Xiaofang has come out less and less, and she herself said that her father is very good, and every time she comes out while her father goes out to meet friends, it is estimated that this time it will be the same. Qian Lide smiled on the side: "It turned out to be a sister-in-law, we are going out of the city to play." ”

Ma Xiaofang was as white as Qian Lide, but Ma Xiaofang liked to listen to this, and asked with a red face: "Will I go too?" ”

Zhu Hongsan sighed and said, "Do I dare to say no?" ”

The group of four came to the back of a small hill five miles outside the south city, there happened to be a small forest, Zhu Hongsan looked at the five miles away from the city and almost six miles, it should be no problem. Zhao Goudan was instructed to leave a jar of polished gunpowder, and the other three were placed in the woods, arranged in turn at an interval of fifty meters.

Zhu Hongsan, Zhao Dog, Qian Lide, no one took an incense to light the medicine twist, and told the two of them how far to run after ordering, it was best to run two hundred meters, and asked Ma Xiaofang to wait behind a stone three hundred meters away. Zhu Hongsan thought about it and couldn't forget anything, and the medicine primer was also very long, enough to run 200 meters.

And the other two said: "Okay, listen to my slogan and light the fire together, run as far as you can after lighting it, remember, or this thing will kill people." Zhao Goudan and Qian Lide nodded.

Zhu Hongsan entered the woods, first looked at the route to run, and then saw that the two of them were also in place, and shouted, "Light the fire." After lighting the fire, he turned around and ran away, Zhu Hongsan himself lit a jar of traditional gunpowder, and the other two powerful let them light it, after all, their own lives are important, if it weren't for Ma Xiaofang is his own designated Xiaomi, Zhu Hongsan would have wanted her to go. Zhu Hongsan ran behind Ma Xiaofang's stone, looked up and saw that Zhao Goudan and Qian Lide had also run back. The three of them hid behind the rocks and waited for three minutes to be fine. Qian Lide said: "Is it a gunpowder tide? ”

Zhu Hongsan said: "No, I was yesterday... As soon as he said that, he heard three loud noises in the woods. After a long time, Zhu Hongsan asked, "Is it three sounds?" ”

Ma Xiaofang said: "It's three sounds, I can hear it very clearly." ”

When the four of them looked up again, their jaws really dropped.