[Three Kingdoms] Xinghan

In fact, the black fire powder, which was first used in the military, is exactly the same as the raw material of firecrackers.

The main ingredients are sodium nitrate, charcoal and sulfur.

It was not until the Ming Dynasty that the original black fire medicine was improved.

Ling Han called all these firecracker manufacturers, one is to let them produce a large amount of black fire and medicine for himself; the other is to use their years of experience to help him improve the ratio of ingredients and strengthen the black fire. The power of medicine.

In addition to the merchants who made firecrackers, Ling Han also found several carpenters.

He needed to make molds specifically to hold the explosives.

After the black fire powder is ignited, a large amount of gas will be produced immediately.

Fireworks are notched so they create fireworks.

If a completely closed space is formed, when the container cannot withstand the pressure of the expanding gas, an explosion will occur at this time.

However, an explosion of this level cannot actually be regarded as explosives, it can only be called gunpowder.

If you want to use it to directly blast the city walls or gates, it is undoubtedly a dream.

At the end of the Ming Dynasty, Zheng Chenggong used a large amount of artillery and gunpowder to attack the city wall of Nanjing, using the most advanced weapons at that time.Even if Ling Han improves, it's hard to be more advanced than that time.

As a result, it was useless in front of the tall and strong Nanjing City Wall.

However, although the power of this kind of explosion itself is not that great, if it is combined with the traditional acupoint attack, it is another matter.

Point attack is a siege method that has appeared since the pre-Qin period.

As the name suggests, the attacking party begins digging at a safe distance from the walls.Or dig it wide enough to quickly accommodate a large number of soldiers to pass through, and cooperate with the soldiers attacking the city gate inside and out; or use some complicated method to dig under the city wall for operation, causing the enemy's city wall to collapse.

The former means an extremely large amount of engineering, and a very wide tunnel needs to be dug, otherwise the defenders can easily kill the siege soldiers at the exit; as for the latter, it is very difficult to dig down the city wall, and it also takes a lot of time.When the defending general discovers this intention, he only needs to build an inner wall in advance, or simply pour water into it, and it can be easily resolved.

Therefore, since the siege equipment such as ladders came onto the stage of history, acupoint attacks are rarely used anymore.

But when black fire, medicine and acupoint attack are combined.

It is only necessary to dig out a long and thin tunnel, place a mold filled with black powder under the opponent's city wall, and fill the surroundings of the mold with tight soil.

When the black powder exploded, since the other three sides were all soil without any gaps, the direction of the impact could only be the city wall above.The huge impact force will instantly collapse the surrounding city walls.

In the late Qing Dynasty, facing the impregnable city of Nanjing, the Hunan army easily broke through in this way, and the Taiping Heavenly Kingdom fell.

"Your Highness, the merchants and craftsmen you are looking for have been brought here."

When Yang Zhen returned to the mansion, he found that His Highness started drawing again, and asked curiously, "What are you drawing?"

Ling Han didn't answer him: "You call the craftsman in for me first."

Yang Zhen cupped his hands, turned and went out, and led a group of carpenters back into the study after a while.

Scholars, farmers, businessmen, craftsmen in this era have a low status.

They usually kneel down at a distance when they meet any master in the yamen, not daring to look directly at them.At this time, they were brought in front of the honorable King Changsha, and these people couldn't help but look at each other in blank dismay, feeling uneasy.

Ling Han finally drew the last stroke, he handed the blueprint to Yang Zhen, and Yang Zhen immediately brought the blueprint in front of the carpenters.

Ling Han said: "The king called you here today, because I have something for you to do. After you go back, you must make thirty such molds as soon as possible according to the drawings."

"If there is a shortage of manpower for a while—Yang Zhen, you will find a team of soldiers later and ask them to follow the instructions of these carpenters."

"Don't sleep tonight, light the oil lamp, and rush to make it overnight. Before noon tomorrow, thirty molds must be delivered. After the work is done, the king will pay you a hundred times the reward."

"Do you understand everything?"

A group of people quickly said yes and promised to complete the task.

Afraid that his drawing was not accurate enough, Ling Han verbally explained the details: "Its length is about three feet. The height should be extremely low, and the upper surface should be as wide as possible. After the cover is closed, only one Fine holes, the rest must be carefully sealed."

According to the principle of pressure, only in this way can it better hit the city wall above after the explosion.

As for that tiny hole, it's for the lead wire.

Send off the craftsmen, and then call the merchants who made firecrackers.

These people have many years of experience in making firecrackers. Every time they shake their hands, the effect of the firecrackers produced will be different from ordinary ones.

With solid theoretical knowledge and skilled practical foundation, Ling Han soon had specific ideas for improvement.

However, if you want to get the real result, you can't be sure until you have the mold tomorrow.

Day two.

There are some inner walls in the mansion, and Ling Han has ordered soldiers in advance to dig several tunnels below each of these inner walls in different places, so as to conduct multiple experiments.

When the molds were carried into the mansion, Ling Han put one of them under a certain section of the inner wall.

The first thing to test is, if there is no improvement, what will happen if the black powder used in firecrackers is directly used.

Ling Han filled the mold with tens of kilograms of black powder and placed it under the inner wall.

Then use the excavated soil to completely block the surroundings of the mold to ensure that there is no gap left.

In order to increase the chance of success, Ling Han did all the dirty work and hard work.

Of course, before that, he had ordered the soldiers to leave here, leaving only Yang Zhen by his side, so as not to damage his image.

In the first experiment, the lead wire was left very long.

He stood far away from the mansion wall, silently watching the wire getting shorter and shorter.

He couldn't help shaking his sleeves.

Beside Ling Han, Yang Zhen was completely confused about the current situation.

He stared blankly at His Highness.Because of crawling through the tunnel and then burying it, at this moment, His Highness's body is already dirty and messy.

His Highness didn't care at all, and now he was even more focused on waiting for something.

Could it be that His Highness really believes from the bottom of his heart that firecrackers can be used to blow up walls?

On the one hand, Yang Zhen thought that if the city walls could be destroyed with firecrackers that can be bought everywhere, wouldn't that be a mess?Everyone has already done this, so don't build a city wall in the future.

On the other hand, he thought that with His Highness's wisdom, he had spent so much effort from yesterday to today, so it wouldn't be just to make a...joke, right?

At this point, the wire remaining outside the mold completely burns out.

Ling Han could almost see through the soil the moment the black fire and medicine in the mold were ignited.

There was only a "boom", and a large amount of black smoke burst out from the previously dug tunnel.

Yang Zhen only felt the ground shake violently, making him tremble with fright.

When he came back to his senses, the front was completely covered by thick black smoke. In the black smoke, there seemed to be stones and mud falling from the sky from time to time.

When the black smoke gradually dissipated, he suddenly discovered that half of the inner wall that was more than ten meters long had disappeared!

Yang Zhen opened his mouth wide, looking at all this in disbelief.

After a long while, he stammered and turned his head: "Your Highness, Your Highness, did you use firecrackers to summon Tianlei just now?"

He obviously couldn't believe that firecrackers could blow up the wall like this.

His Highness has just been busy for so long, and he thinks that many people like to set off firecrackers during the New Year, and His Highness has a destiny.

Yang Zhen naturally thought that it was His Highness who summoned the divine thunder from the sky with firecrackers and a method similar to sacrifice.

"Huh? Summoning Tianlei?"

To be honest, such power is somewhat beyond Ling Han's imagination.

Because in his impression, the explosive power of the black fire powder itself is really not very good.

He suddenly felt that there was no need to improve the black fire medicine for the time being.

If it is to be improved, firstly, many experiments are needed, and secondly, in a short period of time, it may be difficult for the merchants who make firecrackers to produce several hundred catties of new-style black gunpowder.

Although the city of Jiujiang is much thicker and stronger than the walls of the mansion, judging by the power, it is estimated that facing the city walls of Jiujiang, it is no problem to blow up a hole two or three meters wide.

Judging by Yang Zhen's reaction at the moment, the enemy's defenders will probably be even more shocked by then.

When they saw that the city wall was destroyed in an instant and turned pale with fright, their side, who had been prepared for a long time, could take the opportunity to rush into the city in one fell swoop.

If luck is good, it may not be impossible to capture the main defender of the city at the first time with the senior brother as the vanguard.

At the same time, what Yang Zhen just said gave Ling Han inspiration.

The explosion of firecrackers on the wall is indeed appalling.

It's better to say it's the art of attracting thunder. The ancients were superstitious. Don't emperors like to wear a hat bestowed by the gods of monarchy on themselves?

Therefore, Ling Han gathered 9000 troops.

With Sun Ce, Zhou Yu, Zhao Yun, and Yang Zhen, they marched towards Jiujiang County early the next morning.

Before leaving, he informed the whole army that he would use firecrackers as a sacrifice and ask the gods to send thunder to break through the enemy's city walls.

Among the [-] soldiers, [-] were his former subordinates, [-] were Lujiang soldiers, and [-] were Jiangdong soldiers.

After hearing the saying of summoning the thunder, the 9000 people had three different reactions.

Ling Han's own [-] soldiers firmly believed in this, and felt a sudden realization.

They had long thought that His Highness's appearance and demeanor were not like ordinary people, and he treated ordinary people with such kindness and righteousness. It turned out that God sent Changsha King to save the world after seeing the people in the Central Plains suffering.

As for the other two parties, they are equally skeptical, but their biases are different.

People in Lujiang are skeptical and more inclined to believe.

Many deeds of King Changsha have long been spread all over the world, and the theory of destiny is very popular.However, Prefect Lu Kang never stopped such rumors.

Jiangdong's half-belief, on the other hand, tends to disbelieve.

Although Sun Ce did not stop such rumors, Sun Ce himself was about the same age as Ling Han, and he also had many heroic deeds.

The children of Jiangdong themselves had a kind of superstition about Sun Ce, which greatly weakened their superstition about King Changsha.

As early as the day before, soldiers from the three parties were all stationed in Lujiang, and Ling Han hadn't informed him of the technique of attracting lightning.

When Ling Han's soldiers discussed in private how Changsha King was destined, these soldiers would say: "Your Highness is a young hero."

——This kind of argument is obviously a compliment, but it is actually a secret refutation of the theory of destiny.

The author has something to say: The method of blowing up the city wall in this chapter should be practical. The author refers to relevant historical materials such as the Taiping Heavenly Kingdom and tries his best to explain it according to his own understanding. It may be a bit boring to read, but the author feels that this thing is really not well skip it completely...

感谢在2021-04-0321:30:37~2021-04-0620:44:34期间为我投出霸王票或灌溉营养液的小天使哦~

Thanks to the little angels who threw mines: Chloe Su, Passer 1;

感谢灌溉营养液的小天使：澄心260瓶；明漾24瓶；时夏13瓶；薇瑰莯悠、LLLLLL、苏酥饼10瓶；闲听风月5瓶；lmrabbit、阿灯1瓶；

Thank you very much for your support, I will continue to work hard!