After receiving his father's promise, Xiao Yao immediately handed over a long list to the butler, which contained iron, copper, saltpeter, sulfur and other metals and ores. And the housekeeper who got Xiao Feng's instructions didn't dare to have any opinions on Xiao Yao, so the materials that Xiao Yao needed began to be sent to the blacksmith workshop in a steady stream.

Looking at the piles of materials, Xiao Yao sighed deeply: It's been almost half a year since I crossed over here, and now I have finally succeeded in taking the first step of the revolution, it's not easy! It's time to start taking the second step of the revolution!

What is the second step? Since there is already a revolution, of course it is a musket! And what is the most important thing about muskets? Gunpowder, of course! So the second step of the revolution was to make only gunpowder!

Black powder is one of the four great inventions of China, as early as the Spring and Autumn Period and the Warring States Period, there were alchemy alchemists who inadvertently made it, but it was not until the late Tang Dynasty that there was a specific written record! And now it is still in the period of confrontation between the North and the South, so almost no one knows about black powder, even if they know that there is such a thing that can burn and explode instantly, but they don't know its specific formula!

In fact, the recipe of black powder is very simple, it is one sulfur, two nitrate and three charcoal!

However, in nature, these raw materials contain a lot of impurities, which requires the processing and purification of the materials, and the whole process becomes not simple!

Therefore, in order to process and purify these raw materials, Xiao Yao had to make many additional auxiliary tools: first, Liu Shui blew out a large number of laboratory standards: test tubes, beakers, and flasks of various sizes; Then he asked Master Li to take his group of disciples and grandchildren to process all kinds of crude reaction towers made of iron or copper by hand.

Seeing that Xiao Yao had made a lot of strange-shaped tools, Xiao Shan had an incredible expression again! Xiao Shan even felt that since his younger brother met the immortals, his eyes and mouth were much bigger, because he was often stunned by fright!

"Twelve, what are these iron boxes and copper pots you made for? Why are they all so weird! And these glass cups you made, the style is very ordinary, didn't my father already tell us not to make too many glass bowls? You are also scarce, why do you still do so much? Xiao Shan picked up a beaker and asked curiously.

"These cups are not for sale, I use them myself, so it's good to keep it simple! By the way, brother, I'm going to move the blacksmith out of the city! Xiao Yao was shocked again, and even frightened.

"What? Moving out of town? Why! Xiao Shan's eyes widened in fright.

In ancient times, there was a difference between inside and outside the city! The castle is surrounded by tall walls and guarded by a large number of soldiers, so it is very safe! And outside the city, there is nothing, don't be easy to be smashed and robbed by thieves, there may be large cats breaking in at night!

But Xiao Yao had already thought very clearly, the ironworks had to move outside the city!

First, gunpowder is now its own secret weapon, so it can't be too public, and there are many people in the city, which is very inconvenient to make.

Second, the blackworks are an extremely dangerous place now! Don't let alone gunpowder is flammable and explosive, just the stove that has been improved by Xiao Yao, the current flames are all jumping to the roof, and the roof has almost burned several times, once there is a fire in the city, it is very troublesome.

Finally, move out of the city and find a clearing near the river to build a blacksmith's workshop, so that the workshop space can be larger and the various rooms can be divided more carefully! Moreover, it is close to the river, which is also convenient for all kinds of ores to be transported, and finally various hydraulic tools can be manufactured to replace manpower, so the production efficiency can be improved!

To this end, Xiao Yao deliberately made a football-sized glass peach, and improved the glass process, melting red pigment at the bottom of the peach, making the shape of the whole peach more realistic! When Xiao Feng received this Shou Tao, he immediately agreed to Xiao Yao's request to move the ironworks out of the city! And he also specially deployed dozens of guards to Xiao Yao, who were specifically responsible for protecting his safety!

。。。。。。

"Childe, it's amazing that you let the brick kiln fire this mud powder called cement! The cement is mixed with the sand and gravel, mixed with water, and when it dries, it can be restored to the same hardness as the stone! The housekeeper gave a thumbs up and patted Xiao Yao's sycophant.

"Because the blacksmith's workshop is full of flames, for safety, the wooden structure must be kept to a minimum! Moreover, if you use wooden pillars, they are easy to be eaten by insects, so you can use these cement pillars made of cement sand and gravel grout, and the iron rods forged by the new process have been added to them, so that the pillars can make the house stronger! Xiao Yao pointed to these cement pillars and explained confidently.

That's right! In order to ensure the quality of the houses in this new iron workshop, Xiao Yao personally designed and guided the workers to build the entire building, and the foundation and load-bearing pillars of the entire building were made of reinforced concrete structure!

The cement used here is made by Xiao Yao using various raw materials such as lime, clay, slag, etc., mixed and calcined according to a certain proportion, and the effect is very close to modern cement, so the cement pillar poured with it is of course as hard as a stone in the eyes of the housekeeper and others!

"It's just that the iron rods in these cement pillars, the number you use is too large, and thousands of catties of iron rods have been used for these dozens of cement pillars!" The housekeeper was very straightforward, because the amount of iron rods Xiao Yao used was already beyond his budget!

"You know, it took a lot of effort and raw materials to make these iron rods! These raw materials were bought from all over the country by our firm for a large amount of silver, and they were ready to create a new batch of weapons for the imperial court! Now these good iron rods are all buried in these cement pillars by the young master, alas, it is not easy for the master to explain it! "The butler said in pain, what a good iron, how many weapons can be built, and it is really a waste to bury them in the cement pillar like this!

"You feel so distressed when you use such an iron rod, as if you are spending your money! Our Xiao family has made a lot of money with glass treasures recently, if you don't spend it, then what are you doing with all this money? Now, although I have used up all this iron, we can buy another batch of raw materials and come back, and then refine another batch of wrought iron to make weapons? "Xiao Yao said confidently! If you have money, you can buy what you want, and it's the butler's own mouth!

"But master, glass treasures can't be sold in large quantities, only one or two pieces a month can be taken out, and recently we have contacted some rich nobles in Gangneung, they don't have extra money to buy glass treasures, so they can't make too much silver through glass treasures." The butler also had his troubles.

"Well, I really forgot that my father once told me to limit it! Sure enough, those who do scientific research, whether in ancient or modern times, spend money like running water! Xiao Yao said with emotion.

"Do you all go straight to the buyer and sell the glass treasures? And just a buyer in Gangneung? So why can't we change our sales strategy from us taking the initiative to find buyers, to buyers coming to us? Xiao Yao suddenly had a flash of inspiration and thought of a new marketing method!

"Why don't we hold a regular auction of glass treasures? We first sent a large number of people to help us publicize, our Xiao family will be at the end of the month, come up with a beautiful and novel glass treasures out of the auction, then we will Jiangling, Zhou, Qi, and even Chen Those rich people are invited to Jiangling, let them gather together, auction this glass treasure, the highest price wins! In this way, we can sell the price of glass treasures higher! We can even exchange glass treasures for what we want in the form of bartering! Xiao Yao said excitedly!

"That sounds like a great idea! Young master, you are really a talent, you have come up with such a subtle method, our Xiao family firm has partners all over the place, in fact, someone has complained to me before, every time he can't buy glass treasures, because as soon as we take it out, we are bought by the rich people nearby! Now we are regularly auctioning glass treasures, so I believe that all the rich and noble people will come to our Gangneung! The housekeeper was also full of praise for Xiao Yao's marketing methods.

"And there are so many rich people, we can also accept their orders privately, according to their own design style, for them to customize privately, to make a glass treasure in their minds, to meet their wishes! Of course, we have to charge more! Xiao Yao said with a smile.

"It's a great way to do it! According to the requirements of the guests to make their hearts of the glass treasures, this service, I believe will be able to attract those rich! "The housekeeper has completely bowed to Xiao Yao's feet!