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Unlike Ang Lee, Li Longji paid more attention to the military use of gunpowder, but Li Longji also supported the use of gunpowder in mining. After all, in this way, the mining speed would be greatly increased, and the Tang dynasty would be able to make more high-quality weapons with more metal materials.
However, unlike the strict organization of the army, the miners in the mines were ordinary people. The owners of the major mines were also aristocratic families. When these people used the black gunpowder, would they secretly hide some and then use it to do bad things after gathering a certain number of people?
Li Longji had to consider this possibility. After all, the power of gunpowder was too great. If someone secretly hid it, it would definitely not be a good thing for the ruling class of the Tang dynasty.
Therefore, how to ensure that the gunpowder sold to the aristocratic families would all be used in mining became an important matter that must be considered.
Li Longji told Ang Lee about his concerns and asked Ang Lee about the countermeasures. He wanted to hear Ang Lee's idea. After all, Ang Lee was so smart, he believed that Ang Lee would have a better way.
"Your Majesty, this is not difficult. You can tell the people in the world that those who dare to secretly hide gunpowder are guilty of treason. In addition, Your Majesty can organize a secret investigation force to secretly investigate the whole Tang dynasty in order to find those who secretly hide gunpowder in time and punish them severely. In this way, no one will dare to secretly hide gunpowder."
Ang Lee's method was not foolproof, but it was the best way. The people would obey the threat of a serious crime. For example, the Tang dynasty forbade the people to collect armor, otherwise it would be tantamount to treason. As a result, almost all the people did not have armor at home. As long as it was a felony to secretly hide gunpowder, under normal circumstances, no one would dare to secretly hide it, unless they really planned to rebel.
Li Longji nodded and agreed with Ang Lee's method. After all, he could not think of a better way, and it was imperative to use gunpowder to mine the mines.
"Assistant Minister Li, the formula of gunpowder is only known to Heaven, Earth, you, and I. Apart from them, no one else can know about it. In order to prevent foreign countries from coveting the formula, I think it is necessary to protect Assistant Minister Li's personal safety. Tonight, I will send 50 Flying Dragon Imperial Army soldiers to be stationed near Assistant Minister Li's mansion."
Li Longji sent the most elite soldiers to be stationed near Ang Lee's mansion on the grounds of protecting Ang Lee. Obviously, Ang Lee's personal safety had become extremely important at this moment, because the gunpowder related work was inseparable from him. He absolutely could not have any safety issues.
Although the feeling of being monitored was not very good, Ang Lee had no choice. Li Longji would never change his mind easily once he had decided on something. In addition, his safety was no longer a problem for him alone, but related to the lifeline of the entire Tang dynasty. He could not be careless.
"Thank you for your concern, Your Majesty. I will go back and prepare. Tomorrow afternoon, I will hand over the gunpowder workshop's blueprint to the Ministry of Works. Half a month later, we will officially start to manufacture gunpowder."
Ang Lee accepted Li Longji's kindness. In addition, he had said enough, so it was time to leave.
Li Longji nodded and said softly, "Assistant Minister Li is a rare talent in the Tang dynasty. Now the task of implementing the two tax laws has been handed over to Assistant Minister Guo. Assistant Minister Li only needs to focus on the gunpowder workshop. Also, rest more. Don't be too tired."
Ang Lee was flattered to be cared for by the Emperor. He hurriedly said, "Your Majesty should also take care of your health. I will leave now."
After that, he slowly left the Zichen Palace and walked along the path inside the palace toward the gate of the Daming Palace.
When he passed by the small garden next to the Political Announcement Hall, Ang Lee saw hundreds of craftsmen and guards busy cleaning up the scene of the explosion. It could be seen that the destruction caused by the explosion was extremely shocking. It required many people to clean up at the same time. In addition, the damaged buildings nearby also needed simple repairs.
Ang Lee shook his head and passed by the busy crowd. All of this was caused by him. He caused hundreds of people to be unable to rest in peace.
"Alang, Alang."
Seeing that Ang Lee finally came out, Zhao Liu hurriedly led the horse and ran over.
Ang Lee smiled and mounted the horse. He waved his hand and said, "Let's go home."
"Alang, I was scared to death in the palace just now. The hundred-year-old trees and well-made pavilions in the palace were blown up by me."
Zhao Liu seemed to have some lingering fear. After all, the location of the explosion was inside the palace. If he destroyed something that shouldn't be destroyed, it would be troublesome if the Emperor turned hostile.
"It's an order from His Majesty. What's there to be afraid of? The court is going to build a workshop in the southern part of the city. Ah Lang will be very busy. You'll have to worry about the courtyard!"
The mass production of black gunpowder was definitely a difficult job. The most important thing was that it would explode when ignited. Safety was extremely important. There couldn't be the slightest mistake. Otherwise, the consequences would be unimaginable. Therefore, Ang Lee would have to spend a lot of energy on it. Especially before the workshop was on the right track, it was the most troublesome and the most prone to accidents.
"Alang, don't worry. The vegetables in the five hundred mu greenhouse are almost fully grown. When the time comes, I will have Turtle lead a group of people into the city to sell them. The vegetables in the open air haven't been planted yet. Our vegetables in the greenhouse will definitely be sold for a good price."
Zhao Liu said excitedly.
"Haha! That's good. I'm so hungry. Let's go back and eat! "
Ang Lee whipped the horse's butt and sped back to the residence.
Now, it was already past meal time. When Li An and Zhao Lu returned to the mansion, the meal had already been prepared for half an hour. Moreover, it had been reheated many times.
Ang Lee hadn't returned for a long time. This made Yan Ruyu very worried. She had been waiting in the room. No matter how Grass persuaded her, she refused to eat.
"Madam, Alang is back."
Grass smiled mischievously and turned to leave the bedroom.
"Husband, why are you back so late? Didn't you say you would be back before noon?"
Yan Ruyu quickly went up to Ang Lee and helped him take off his coat.
It was winter and the temperature outside was relatively cold. However, Ang Lee's residence had many fireplaces, so the temperature was still very warm. Therefore, the temperature difference between the inside and outside was relatively large. After entering the house, one had to take off the outermost coat. Otherwise, it would be hot.
"Ruyu, why haven't you touched the food? Aren't you hungry?"
Seeing that the food on the table hadn't been touched, Ang Lee asked with concern.
"Husband didn't come back on time. How can Ruyu eat?"
Yan Ruyu smiled and said sweetly. At this moment, seeing that Ang Lee had returned, she was happier than anyone else.
"Madam is so concerned. Shouldn't your husband show some appreciation?"
Ang Lee smiled mischievously. He hugged Yan Ruyu and kissed her cheek.
"It's broad daylight. What are you doing? Let's eat! "
Yan Ruyu rolled her eyes at Ang Lee and ate with Ang Lee. From time to time, she would put the best food into Ang Lee's bowl, making Ang Lee feel an indescribable warmth.
After eating and drinking, Ang Lee immediately threw himself into work. The black gunpowder factory was the most important project among all the projects of the Tang dynasty. There couldn't be any accidents. In particular, the internal structure of the workshop must be reasonable and must take into account all aspects. Not only must it pay attention to confidentiality, but it must also pay attention to saving costs and reducing labor intensity. At the same time, it must pay special attention to safety. Once a safety accident occurred, the consequences would be unimaginable.
In order to prevent large-scale serial explosions, Ang Lee had thought of many countermeasures before, including placing the manufactured black gunpowder in the underground warehouse. In this way, if there was an accident, the damage caused would be limited.
In addition, a few more underground warehouses must be built. There must be enough distance between two warehouses to ensure that if one warehouse exploded, it would not affect the nearby warehouses. Thus, serial explosions would be avoided and losses would be reduced as much as possible.
In addition, the workshop needed to store as many raw materials as possible, such as sulfur, saltpeter, and charcoal powder. Other materials needed to be prepared as well. However, the finished gunpowder didn't need to be produced in large quantities to further reduce the risk of safety. When large quantities of gunpowder were needed, various raw materials could be brought over and a large amount of finished gunpowder could be produced quickly.
For sulfur powder, saltpeter powder, and charcoal powder, Li An planned to let the three groups grind them separately. During the mixing process, he would have to be personally responsible for it. However, mixing these materials in large batches was a difficult task. It would be better to have the corresponding mixing tools.
The best mixing tool in the future was a drum. The materials were put into a barrel, then the drum was placed horizontally and rolled back and forth. The various materials inside would be fully mixed and the finished product would be made. After the finished product was made, the finished product would be poured out.
The manufacturing of the drum was very simple. Ang Lee drew a diagram and prepared to let the craftsmen in the wood processing workshop make it. He also wanted to make more to prevent the production of black gunpowder from being too tight.
After drawing the drum, Ang Lee began to design the various buildings of the black gunpowder workshop. The location of several large workshops was to be placed in the middle. The raw materials warehouse was to be placed on the left, the finished products warehouse on the right, and the dispensing workshop that Ang Lee personally operated was to be at the back.
All the raw materials warehouses were to be built on the ground. The large workshops and the dispensing workshop were naturally also on the ground. The finished products warehouse on the right was to be built underground to prevent the workshop from being blown away in the event of danger.
The freshly dispensed black gunpowder and the marketable black gunpowder in designated containers naturally had to be placed in different warehouses. In addition, in terms of finished products, Ang Lee planned to use two packaging methods. The first was to put it in small clay pots. It was easier to manufacture and moisture-proof, but it was relatively troublesome to carry. After all, clay pots were very heavy.
The second packaging method was to use linen. Linen was much lighter than clay pots. Moreover, clay pots could only be cylindrical, but linen bags could be packaged in various shapes. For example, it could be easily carried in a rectangular shape. It was just like the explosives in the future, but it was less moisture-proof.
These two manufacturing methods had their own advantages and disadvantages. He could make some of them and see the user's feedback. Then he would decide which one to produce.
After an hour of hard work, Ang Lee had finished drawing the blueprint of the black gunpowder workshop. The details of each part were clearly drawn. As long as the craftsmen of the Ministry of Works saw it, they would be able to understand it. Moreover, even if they didn't understand it, it didn't matter. Ang Lee would often visit the workshop and give guidance at any time.
Of course, in addition to making black gunpowder, Ang Lee also had another scientific research that must be carried out as soon as possible. That was the railway system. First, he would make simple rails and iron-wheeled carriages that could walk on them. Then, he would modify them step by step. Finally, he would invent a self-driving steam train. Of course, this wasn't easy. It required a lot of effort, and it wasn't 100% possible.
Half an hour later, Ang Lee also drew the blueprints of the rails and iron-wheeled carriages. He was ready to let the craftsmen of the factory start manufacturing immediately.
By the time he finished these large and small blueprints, the sky was already dark. Ang Lee's plan to leave the city was completely ruined. He could only leave the city early the next morning.
At this time, a large number of torches lit up the sky ten miles outside the south gate of Chang 'an City. Hundreds of craftsmen of the Ministry of Works and thousands of people conscripted near Chang' an City were working through the night to build a wall that covered an area of more than a hundred acres.
According to the standards set by Li Longji, the wall had to be thirty feet high and ten feet thick. A circle of the wall had to be two miles long. It could be considered a relatively large project.
In order to finish as soon as possible, the Ministry of Works temporarily mobilized a large amount of manpower and material resources in Liaodong. They were prepared to work day and night to complete this task as quickly as possible.
The reason why the Ministry of Works was so active was mainly because Li Longji had given a strict order for the Ministry of Works to build the black gunpowder workshop. For this reason, some projects in the palace could be stopped.
In order to show their seriousness in building the black gunpowder workshop and win the favor of the Emperor, the assistant minister of the Ministry of Works and a few of his subordinates directly set up tents and lived near the construction site. Some of the lesser officials of the Ministry of Works rolled up their sleeves and personally went to work to encourage the craftsmen and the people.
Most of the city walls of the Tang dynasty were made of loess. At most, a layer of stone bricks was laid on the outermost layer to make the walls look better. The main body of the walls was still loess.
This was mainly because materials were scarce in this era and technology was relatively backward. All the city walls were built with stone. The cost was too high and the time it took to build them was too long. As long as the loess was firm, it was enough to defend against the enemy's attack.
However, the people of the future would always be deceived by various movies and TV shows. They would think that the ancient city walls were built with stone. This was an absolute illusion. However, only a small number of stone city walls could be preserved in the future and become famous tourist attractions. As for the city walls that were made of loess, after thousands of years, only a pitiful foundation was left. They could not be seen at all.
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