The heavens start from saving Daming

Chapter 740 The emergence of gunpowder

The morning star hangs high in the sky, and a hazy fish belly white floats on the distant horizon.

Amidst the loud crowing of cocks, a figure flashed across the wall of the backyard of the former Prime Minister's Mansion, now the Taifu's Mansion, and fell down silently.

A group of patrolling diners passed by yawning, not even noticing the figure passing behind them like a ghost.

Li Yunze quickly returned to the front yard of his bedroom.

Before he entered the yard, he saw the door of the room opened, and the beautiful girl who was once said to be Lu Buwei's daughter came out yawning and carrying a copper basin.

When Lu Buwei left, he only took away his relatives and some of the people he wanted to take away.

After all, after losing the power of the prime minister, the income from the fiefdom alone was not enough for him to support his once thousands of retainers and a huge number of slaves.

The abandoned disciples basically chose to scatter, either to find other benefactors, or to simply leave Qin.

However, those slaves had their slave contracts taken back by Great Qin and became official slaves.

Being a slave in Da Qin is a very miserable thing. Working and working is their only fate.

It's just that Ying Zheng didn't reassign them, but stayed in the Taifu's mansion.

In addition, Li Yunze is not in the house all year round, but these servants are living a very good life, and there are a large number of newborns.

There is nothing to say about the girl's body shape or appearance. When she is holding a copper basin to find hot water, her graceful figure is very attractive.

After the girl left, Li Yunze went straight into the room and fell asleep on the clean and tidy bed.

When the girl came back from washing, she saw someone suddenly on the bed. She was so frightened that she screamed.

Fortunately, she had seen Li Yunze and recognized that it was indeed the head of the family who had returned, so she breathed a sigh of relief.

Soon, the news of Taifu's return spread throughout the mansion.

Li Yunze slept until his second meal of the day in the afternoon.

Judging from his physical fitness, it would be no problem to keep moving even for three days and three nights, let alone one night.

The reason for taking such a long rest is of course not physical fatigue, but mental exhaustion.

His mental strength has been strengthened, and his sensitivity is the same. Ahem.

When he woke up, Li Yunze felt much better. He washed and ate under the service of the girl.

After eating and drinking to replenish the lost essence, a completely unknown butler came forward and handed over a pile of invitations.

They were all sent by the distinguished royal relatives in Xianyang City.

Although the Qin State was despised as a barbarian by all the countries in the Kanto region, at least the upper echelons were not barbarians at all. They had everything they should have and knew how to do it.

Li Yunze took the invitation and looked through it casually, then handed it back, "Reject them all and say I have left."

He has no interest in this kind of banquet. After all, after so many worlds, what has he not enjoyed?
In this world, he just wants to do what he wants to do.

In the evening, before the gates of Xianyang City were closed, Li Yunze and his entourage rode out of the city and headed straight to the north.

Li Yunze came and went in a hurry, but the waves left in the conspicuous place were extremely violent.

When Li Si presented the official script, Ying Zheng was overjoyed and immediately announced that the official script would be the official script of the Qin Dynasty.

At the same time, students from all over the Qin Dynasty who wanted to use paper and printing to pass on the culture of their own school were also informed that it was no problem to print the classics of their own school, but they had to be translated into official script first before they were eligible to go. Printed transcript.

Paper began to be controlled. On the one hand, it gradually replaced the heavy and inconvenient bamboo slips in various parts of the Qin Dynasty. On the other hand, export to Guandong was prohibited.

If you want to send paper to the land of Kanto, you can do it, but it must be written in official script.

Da Qin began to vigorously promote the book Tongwen, laying the foundation and preparation for future unification of the world.

As for Li Yunze, he still focused on improving his technological level in the ditch to the north.

The first is black powder.

Li Yunze didn't plan to make any matchlocks or flintlock guns. He made black gunpowder purely to reduce population losses when Qin destroyed the six kingdoms.

The losses during the siege were huge. If you had black powder, it would be very easy to destroy the city.

If the losses are small, the massacre will naturally be reduced.

Killing is indispensable in the process of unifying the world, and even Li Yunze can only avoid it if possible.

The ratio of black powder is very important. If the ratio is wrong, it can only be used for entertainment, to put flowers, to kick things.

If you want to burst out a large amount of light and heat in an instant and produce deflagration to explosion effects, you need a very standard formula ratio.

Of course Li Yunze knew this ratio.

The first thing to make clear is that what he needs is explosive gunpowder that can explode the city, not propellant to fire muskets and artillery.

Therefore, neither 'nitrate, disulfide, and charcoal' nor the '70.00% nitrate, 12.00% sulfur, and 13.00% charcoal' invented by Europeans are suitable.

Li Yunze chose a formula with a sulfur content of up to 70.00%.

Only when the specific gravity of sulfur exceeds [-]% can the explosive force generated by it be enough to mine a mine, so there is no problem in blowing up a city wall.

When it comes to sulfur, other countries may have some troubles, but Qin has sufficient reserves.

Because right here in Shaanxi, there are a large number of underground sulfur mines that can mine a large amount of sulfur.

Moreover, the purity of sulfur in Qin State is very high, usually above 90.00%. It can be used directly without further purification.Of course, the Kanto countries also have sulfur ores with large contents, but they are not pure enough and require time, energy and materials to purify.

What’s even more interesting is that the Qin State has just opened up the Hexi Corridor under the Qilian Mountains.

Located in the middle of the Qilian Mountains, there is the Sulfur Mountain.

This is a large-scale sulfur mine with abundant reserves and high purity.

When Li Yunze expressed the need for sulfur, the supervisor quickly sent him a large cart of sulfur, which was in the shape of an irregular stone. It was very hard to the touch and resembled yellow sulfur blocks in shape like stalactites.

It just smells a bit pungent, just like spoiled rotten eggs.

Li Yunze inspected it and expressed satisfaction, so he arranged for people to send it to the warehouse for safe storage, while he went to wash his hands.

After all, the smell of rotten eggs in the first hand is really pungent and unbearable.

The sulfur problem was solved, and all that was left was charcoal and saltpeter.

Charcoal is used to moderate combustion and provide stability.

As for how to make charcoal, there is no need for Li Yunze to improve his technology. In this era, there are already good enough methods for making charcoal.

The method of burning charcoal is very simple. First, select hard and high-density wood, such as oak, cherry, beech, etc., dry it and then cut it into appropriate specifications.

Then it is sent to the charcoal kiln, sealed and heated.

It is said that the kiln invented in China is really a black technology, and there are so many good things that can be produced.

Li Yunze gave an order, and a large cart of black lump charcoal was delivered to the warehouse.

The final saltpeter's main function is to provide sufficient oxygen during combustion and explosion.

As for how to obtain saltpeter, it is not difficult in Middle-earth.

Europa lacked saltpeter and had to use various methods to find it instead.

But China is truly blessed with saltpeter mines everywhere, and it has even been used as a medicinal material for a long time to 'digest' diarrhea.

The cart of saltpeter sent by the supervisor was all sent from the medicinal material warehouse.

The purity is okay, a little purification is sufficient for use.

Next is segmentation production.

Li Yunze led a group of Mohist disciples and carefully mixed the three raw materials in proportion.

As for the process and method, the first step is naturally fine grinding, grinding it into a fine powder state. Of course, it is ground separately, and the tools must be thoroughly cleaned after each grinding.

Li Yunze repeatedly emphasized this and even wrote corresponding rules and regulations.

In other times, other countries may not have implemented this standard very well.

But in Qin, there is absolutely no chance of anything going wrong.

Because once you violate it, you have to say goodbye to a certain part of your body.

Qin's laws are so strict that they are no joke.

After grinding, mix according to the proportion, stir thoroughly in a large vat, and add a binder at the same time. Li Yunze used egg white, which is a very good binder.

During this process, there is no doubt that contact with open flames must be prohibited throughout the process.

Li Yunze even specially dispatched a group of sergeants from the military camp. They were fully armed and kept an eye on everyone in the workshop in a remote place. If anyone dared to use an open flame, he would be dragged out and beaten.

After being produced, it goes through a drying process, and brand new explosive black powder for mining is freshly baked.

Li Yunze made the fuse with his own hands, and then chose a mountain to conduct the experiment.

As the fuse burned to the end, there was an earth-shaking roar, and endless light and heat burst out in a very short period of time, forming a terrifying force that swept everything around.

Many fragments soared into the sky and scattered on the ground, announcing the success of this experiment.

Li Yunze turned around and looked at the Mohist disciples and soldiers behind him who were slumped on the ground, with even wetness between their legs. He smiled and spread his hands, "Everyone, a new era is here."

The messenger galloped to Xianyang Palace.

At this time, in the Qilin Hall, Ying Zheng was discussing internal and external matters with a group of ministers.

First of all, there is a big news, that is, Wei Wuji, Lord Xinling, one of the famous four princes, died under the suspicion of the king.

You must know that it was the reinforcements brought by Lord Xinling that defeated the Qin army at the gate of Handan City, causing extremely horrific losses to the Qin army and forcing Qin to give up its attempt to take advantage of the situation to destroy Zhao after the Battle of Changping.

Everyone in Da Qin was all smiles after hearing the news.

This feeling is similar to when the Guandong countries learned that Bai Qi was dead.

In addition, the State of Zhao was at war with the State of Yan at this time, and the State of Qi did not care about worldly affairs. The State of Chu married the princess and came over at a time when the relationship was good. Everyone felt that now was a good time to send troops to Guandong to gain benefits.

As for South Korea, it has always been directly ignored.

But besides the good news, there is also bad news, that is, the famine last year has continued until now, and there is even a locust plague.

The food of Qin State is not enough for the leaders of Guizhou now, and it will be too difficult to spend a large amount of food to support sending troops.

Amid the discussion, Li Yunze's letter was finally delivered to Ying Zheng.

(End of this chapter)