Yangsui is made of copper, and fire is generated when facing the sun. This is the Yangsui recorded in ancient books. It is actually just a concave mirror, and it is a concave mirror made of copper. It uses the principle of reflection to generate fire, that is, put the special moxa velvet on the focus of the reflection of the concave mirror, and facing the sun, the moxa velvet will soon be ignited.

However, this kind of Yang Sui record is only recorded in ancient books, and then the later Song Dynasty was recorded in Yang Sui again. But Yuan Tiangang didn't know that it was also a strange thing. Maybe he was not interested in these things.

By the way, making fire and making fire, it was too difficult in this era. Even Yang Heng didn’t know how long it took to carry the bow of the fire. It was too ugly. He carried a bow for making fire all day long, as if Yang Heng liked to eat it. So, with the fire sickle, it was the fire sickle. When he thought of Yang Sui, he naturally thought of the fire sickle. You must know that Yang Sui (it was called Yintianchou at that time) and the fire sickle are the most popular things when matches still need to be imported, especially some old smokers, who will have a pipe and a cigarette bag, and then

There is a yang shovel or a fire sickle hanging on the cigarette bag. When you want to smoke, you will use the yang shovel to reflect the sunlight into the smoke pot to light the cigarette. The smoke will also be mixed with some charcoal from the squid, which will make it easier to ignite, or use a squid, that is, two iron sheets, one is used to knock the other to create sparks, and the sparks will also fall on the charcoal of the squid and ignite it immediately. It is said that this squid charcoal is the easiest to catch fire, and a little spark will ignite. Similarly, mugwort also has this effect, as if it is worse than the charcoal from the squid.

I do it when I think about it, but why don’t I invent matches? This requires some chemical raw materials and needs to be slowly developed by several Taoists. Now let’s use a scythe instead. This ignition equipment also needs a gradual process, right? Besides, even if it is to make matches, it is also very expensive at first. It is not something that ordinary families can afford, so the scythe is still in a big market.

Just in time, the next visiting place is the blacksmith's place. When everyone was visiting the tall chimney and the red iron flowing out, Yang Heng had already pulled a blacksmith aside. He talked about the making of the chimney. Yang Heng had never seen the chimney before but had heard the oral narration of the old man. It is said that people would have a bag, which contains chimney, flint, and even moxa velvet. When it needed to be used, take out the chimney from the bag, then ignite it, and put the velvet on the place with the most Mars. It would be ignited at once, and if you don't know how to use it, you would beat it many times before you hit it. But those poor people had nothing to do with it. It was just a piece of broken iron, a stone, and then a bamboo tube or an iron tube filled with shiny velvet or charcoal. It was that simple.

"Ah, Xiao Langjun, it's so easy to ignite. I also found that when I touched the iron sheet and the stone, it would spark. But why didn't I think it would be a pig's brain?" As he said that, he began to knock on his head. Whose action was this? Yes. When Xiao Niang taught people, she often said that they might have learned it by someone inadvertently. It was not that this craftsman knew that his brain was for thinking. He just thought that this was a swearing, and he used it on himself here.

"Okay, okay, I didn't say you are a pig brain. If you are a pig brain, I will use you. You will definitely have your invention. Now do what I need first." Yang Heng didn't expect that just his words would motivate a high-level craftsman. This means that people should be motivated more, and maybe they will shine for you at any time.

"Learn from the literature, come here, Your Majesty the Emperor knows that you can make steel like this? I just asked the craftsmen here, and they said that the output here is very high, but why isn't this method appearing in the outside world?" Old Li Gang once again questioned Yang Heng. He is really a loyal minister, but you don't think about it. Can Yang Heng let Li Er know? There are Li Er's spies and guards around him, so what can escape Li Er's eyes?

"Professor Li, this is still in the experimental stage, and the steel production is not very stable. Even this kind of blast furnace is being improved. There are also some impurities in the molten steel, which is much worse than the ones that make steel. Therefore, it is not yet time to offer it to His Majesty. Even the molten steel produced can only be made into some steel bars for building materials, and cannot be used to make other utensils." Yang Heng's explanation was a bit pale, but Yang Heng really had this idea. Since it was a research institute, it would have to study some popular supplies, not waste products. Looking at the red appearance of the molten steel, there were really a lot of impurities inside. In the past life, those finished steels did not meet the international standards, but the current steel did not meet the standards of the blast furnaces in the past life. Therefore, craftsmen should continue to study, and Yang Heng was not afraid of investing.

"Oh." Li Gang's eyes were full of confusion. Yang Heng couldn't see it. If he didn't explain it clearly, Li Gang would definitely have an idea in his mind, "Come on, take a knife." "It's the little husband." Someone soon took out a knife. "Isn't this very good? It looks very sharp." Old Li Gang became even more confused. Such a good knife, how could there be any shortcomings?

"You, use this knife to gently knock on the stone on the side." As expected, Old Li Gang took the knife and knocked it on the stone. The knife was broken into two pieces at once. Didn't it mean that there was No. 45 steel? Naturally, this is also a small batch of steel produced, which cannot be produced in large quantities, so it can't be found in the spot with Bailian Steel. This is also the reason why Yang Heng needs to study how to produce large quantities.

"Little Langjun, it's made, it's made. You see, this is really useful." The craftsman who made the scythe ran over and shouted while running, holding a piece of iron and a stone in his hand.

"Run slowly, run slowly, don't fall." There was no way, the man was excited, and he was like a child, and he had no roots under his feet. What if he fell down? There were so many molten iron here, and then falling down would be a big deal.

"Little Langjun, look at this," as he said, he knocked the iron on the stone, and then a bunch of Mars went straight to the turquoise in his hand, and, whispered, a bunch of flames caught, turquoise, where did he get the turquoise?

"Little Langjun, you are asking about this turquoise. This is actually the moxa cone we usually use for moxibustion. When I made this turquoise, I was also wondering how to find the turquoise. But when I found this turquoise, I tried it with it and it turned out."

This is naturally the credit of Master Sun. These craftsmen usually suffer from various illnesses. When Master Sun came to the valley, they came to seek medical treatment. Then Master Sun taught them how to use moxa cones and how to make moxa cones. However, the moxa cones they made were not so qualified and could be used as turquoise but were of first-class use.

At first, everyone did not take the craftsman's shouting seriously, and some people were wondering why Yang Heng was so nervous. They all doubted Yang Heng's vision of selecting people, and even thought that Yang Heng's research cost was too high and he had to support Yang Heng. But when they saw the flames in his hand, they were shocked. In just a while, they created such a thing. They saw Yang Heng saying something to the craftsman, and even saw that the things in the craftsman were so simple, so naturally they would not think that this was an item made very early, and it was also an item for making fire. It seemed that this thing was very simple, and just a hit, and then a flame would be ignited. How much effort would it save than drilling wood to make fire? You must know that drilling wood to make fire is not something that everyone can succeed. If a person who is not very agile cannot drill out the fire, he can only smoke but not create fire, and can kill people.

For a moment, everyone was thinking about this matter for several times.

Seeing everyone's expressions, Yang Heng also felt funny. He really didn't understand people's demand for fire, especially he was very skilled in using the fire drill bow. He could remove the fire in almost a few minutes. He didn't feel so embarrassed, and he was very interested. Perhaps he would lose interest over time.
Chapter completed!