Release that Witch

"What is this?" the night owl looked at the black, shiny stone on the table.

"Black obsidian." Roland did not lift his head and concentrated on drawing the drawings in his hand.

"Black... What stone?"

"No, I'm nonsense." He sighed, looking at the shape and color, and the ghost knew what the stone was. He is not studying geological exploration. Pure metal is not necessarily distinguished by him, let alone ore. The only knowledge in the head tells him that the ores are mostly complex compounds, and the different colors of the impurities are different. Let’s take the iron ore, the hematite, pyrite, and siderite It is completely different, especially pyrite, sometimes showing a pale yellow metallic luster, often mistaken for gold mines, so there is the nickname of Fool's Gold.

As for the high temperature resistance, the compound itself has no fixed melting point, and it is also related to impurities and components, and the temperature cannot be distinguished by the temperature alone. Moreover, the metal element exists in an ionic state, and the purification method is not known, and it is not useful when it is burned.

"Do you have something you don't know?" The nightingale was surprised.

"More," Roland put down the quill and made himself a cup of black tea. "Do you want to drink?"

“No,” she waved her hand. “Right, beef jerky is not grilled with fish fillets. After that, you still put fish fillets in your drawer.”

"..." Roland was silent for a moment and decided that he did not hear this. This stone is also intended to be thrown to the chief alchemist, Camo Spoel, to deal with minerals that are more or less radioactive. It is not a good choice to be in the office.

After the recent evolution of Soroya's abilities, he found that things that could be made suddenly increased a lot.

The first is the tap water system, which is something that can greatly enhance the happiness of the residents. Think about it, after a busy day, sweating back home, wanting to clean the slimy body, but found that the water tank is empty, but also to go to the nearby well to fetch water, this feeling is definitely awful. Moreover, Roland is also very tired of washing his hands from the water tank to wash his hands. He always feels that the water can be long parasites in the tank for a few days, not to mention that the water tanks are rarely cleaned once a month. Look carefully. When you get there, you can see the scale deposited on the bottom of the tank fluttering like a caterpillar.

If the water tower is used for water supply, there is no technical difficulty. The steam engine is used to pump the water from the Chishui River into the water tower, and then the siphon principle flows into each household along the pipeline, forming an automatic water supply system. The reason why Roland has not been implemented is... materials.

If the water supply pipe is made of iron or copper, and the iron pipe is not treated with anti-rust, it will be scrapped in a few years. The copper pipe is a perfect water supply pipe, corrosion-resistant, the inner wall is not fouling, non-toxic, and even copper ions have a bactericidal effect, but the metal of the casting currency is used to make the water pipe? The output of the North Slope mine is far from being extravagant to this point. Even in later generations, copper water pipes are considered for high-end residential buildings.

At present, Bianbu Town is not only unable to export minerals, but even imports metal ingots. Therefore, whether it is iron pipe or copper pipe, Roland is reluctant to use it to create a water supply system that cannot be used for pure enjoyment.

But now it's different. With Soroya's coating, it means that he can empty the white wolf and use magic to produce water pipes, such as taking a steel pipe as a mold, baking the paper on the outside, and letting Soroya cover it. The layer becomes a pipe after the mold is taken out. Even if such a water pipe does not resist pressure, it can be placed in a water pipe groove with a cover.

The second is the power supply system... I am afraid that there is no way to popularize the whole town in a short time, but letting the castle be filled with light has always been what Roland wants to achieve. It is too painful to read with a faint candlelight, and it is very harmful to the eyes. With the summer coming, what is the feeling of a torch and a candle on a hot night?

With generators and wires now, it seems that the castle has entered the electrical age ahead of time. As for the filament of the bulb... He vaguely remembers that before the application of tungsten wire, carbonized bamboo filaments were commonly used to make incandescent lamps. Bamboo is not a rarity, there is forest land south of the Chishui River.

However, the most needed for Bianbu Town is the iron and iron facilities. Iron production is directly related to the scale of machinery production and weapons manufacturing, and is also the basis for the survival of the town.

"What do you paint is... a tower?" The nightingale sat at the table and asked curiously.

"Almost," Roland nodded. "But it's empty inside, it's used to fill fuel and ore. It acts like a shaft furnace and can smelt iron ore into pig iron."

This is an upgraded version of the ancient shaft furnace of the blast furnace.

Luozhou designed and built the shaft furnace. He once went to the construction site to watch it. To be honest, in addition to the small capacity and low furnace temperature, the furnace is very close to the blast furnace. If it is not the evolution of Soloya, the town has With the ability to produce refractory bricks, he intended to build more than ten such shaft furnaces.

With refractory bricks, it is natural to consider blast furnaces with higher furnace temperatures and higher output.

The newly designed blast furnace is nearly eight meters high, four times as much as the shaft furnace; the furnace body is tower-shaped and the inner diameter is three meters at the maximum. To prevent collapse, the bottom has a support frame. The wall of the furnace is thin and thick, and the thickness of the furnace is half a meter. The inner layer is made of Soroya-coated fireproof bricks, and a ring of air supply is provided. The steam is used to pump air into the belly.

To take full advantage of the steam engine's power, Roland also designed an automatic feeding device for the blast furnace, including a climbing rail and a special delivery truck with a movable door at the bottom. After the car climbs to the top of the furnace under the traction of the steam engine, the buckle at the bottom of the car will be hooked in, so that the pouring port is opened and the fuel or ore is dumped into the furnace. For this era, the system is considered to be the top technology.

Unlike large openings and low-heat shaft furnaces, once the blast furnace is put into production, it will not stop operating for a long time. It must be continuously invested in fuel and ore, and the output is much higher than that of the shaft furnace. As long as five or six such blast furnaces are built, the production of pig iron in the town will increase exponentially.

......

Drawing a complete drawing, Roland licked some numb wrists and took a box from under the table and pushed it to her.

The night fell, "Is this...?"

"Well... I was going to give it to you earlier, but it took a while to engrave the pattern. After all, the machines in the factory were not too skilled for me to use," Roland smiled. "Open it."

She reached out and opened the box and couldn't help but make a surprise.

I saw that there are two revolvers placed in the left and right, and the prototype guns used on the day of the Carter test. The two pistols are silvery, the surface is so bright that they can reflect the figure, and the handle and the gun body are engraved with delicate patterns. The name of the nightingale is also printed on the barrel: to Veronica.

This plan has been brewing for a long time in Roland's head. Compared with the inconvenient and troublesome front-loading flintlock, the newly developed revolver has been perfected, both in terms of safety and firing rate. Like the nightingale, a witch with a very high mobility, the power of the firearms in her hands can be expected.

"Thank you," she smiled as she picked up two pistols and jumped off the table, than a shot. "Do you teach me how to use them?"

"Of course," Roland nodded, and the other side's white thorns customer service plus a glaring smile, let him instantly understand what is handsome to no friends, "this is not difficult, as long as sneak into the target, pull the trigger, at the same time High shouting is already in the afternoon." (To be continued.)