The lush courtyard of the Chu Wangfu has a hole in every place.

However, Li Shimin's mind was on the black powder, and he was not in the mood to appreciate it.

"Your Majesty, don't go any further, we will stand here, and when Liu Yuan is ready, we will be able to see the power of black powder."

Next to a specially made reinforced concrete wall, Li Kuan stopped Li Shimin from continuing to walk.

"Kuan'er, then Liu Yuan is still a hundred steps away from us, what is there to worry about? It's too far away to see clearly. ”

Although Li Shimin saw the power of fireworks in the opera house today, he sat directly in the front row.

According to his estimate, even if Li Kuan's black powder is a little more powerful now, it won't be a hundred steps away from it, right?

What can you see from such a distance?

"Your Majesty, a hundred steps is already a bit dangerous. We're waiting behind this wall, and there are two dedicated viewing holes. ”

In order to let Li Shimin fully see the power of black powder, Li Kuan asked Liu Yuan to prepare several catties of black powder, and it was still the kind of high-quality product made in the laboratory.

This distance of 100 steps seems to be quite far, but in fact it is less than 100 meters, and it is really not very safe.

If you are unlucky, a piece of gravel flies and injures Li Shimin, then the fun will be great.

Of course, Li Kuan was more worried that he had been hit.

"I said His Royal Highness the King of Chu, this is not your style, anyway, you are also a person who has beaten Tuyuhun and been to the Wa Kingdom, why have you become so afraid of death now?"

Wei Chigong, who followed, couldn't help but complain.

"Jingde, His Royal Highness the King of Chu is also for the sake of His Majesty's safety, you must not talk nonsense."

Qin Qiong also made an exception to watch "The Legend of the White Snake" today, and then followed him to the courtyard of the Chu Wangfu with a curious face.

Speaking of which, it was the first time he came here, and he didn't expect that there would be such a large-scale courtyard outside Chang'an City.

"Hey, that's it."

Wei Chigong has always had great respect for Qin Qiong, the eldest brother, and now that he has spoken, he is naturally as obedient as a kitten.

"Everybody is standing behind the wall, it's about to be lit."

Li Kuan saw Liu Yuan signaling in the distance that he was ready, and hurriedly beckoned everyone to hide.

The people who came over today are all important ministers of the DPRK and the central government, and no matter which one happens, they can't make a difference.

Li Kuan didn't want to turn a good thing into a bad thing.

"Trick up!"

The eldest grandson Wuji muttered, but still followed everyone behind the wall.

"If there is nothing surprising in a while, my old face will be disgraced by you."

Cheng Yanjin also looked at Li Kuan speechlessly, feeling that he was making a bit of a fuss.

"Jun buy, inform Liu Yuan that you can start." Li Kuan said to Xi Junmai, and then reminded again, "Your Majesty, all the princes, please cover your ears, you must cover them." ”

After Li Kuan finished speaking, he didn't care whether everyone believed it or not, so he covered his two ears first.

When Li Shimin saw this scene, he also covered his ears suspiciously.

"Boom ......"

After a while, there was a loud bang ahead.

Even if everyone covered their ears, they felt that the whole person was buzzing, the ground seemed to be shaking, and even a few screams were heard.

Obviously, some of the guards who had no way to stand behind the wall were accidentally hit by the debris flying from the explosion of black powder.

"This ...... This is the power of black powder? It's even more powerful than the thunder male and electric mother. ”

Li Shimin was frightened, but soon regained his expression.

After all, I already knew in advance that this was artificial.

However, Li Junxian was patrolling with Qianniuwei on the periphery, and he didn't know the specific situation inside, and suddenly heard such an earth-shattering voice. His face turned white.

Hurriedly stepped on the horse and rushed into the courtyard of the Chu Palace.

"Your Majesty!"

Seeing that Li Shimin was safe and sound, Li Junxian finally breathed a sigh of relief.

"Get out of here."

Li Shimin had already felt the power of this black powder, and then thought that when he came over just now, many people Li Kuan didn't let him follow, and now he naturally didn't want too many people to know.

"Your Majesty, Weichen went over to see the situation at the scene of the explosion."

Qin Qiong was eager to try, and had already seen the military use of black powder.

Li Shimin: "Kuan'er, it won't explode again, right?" ”

Li Kuan: "No, black powder is a disposable, and after an explosion, there will be nothing left." ”

"Then let's all go over and see how powerful this black powder really is."

After Li Shimin finished speaking, he walked out of the wall with an arrow step and went to the place where Liu Yuan had filled in the black powder just now.

A hundred steps away is just a matter of a few breaths.

However, when a large crater one foot wide and half a person deep appeared in front of everyone's eyes, the air seemed to freeze a little.

After a whole cup of tea, Li Shimin spoke, "This was originally a flat land? ”

"That's right, it was originally a flat land, a flat land with yellow mud and gravel and the like."

Li Kuan naturally understood the meaning of Li Shimin's words.

"His Royal Highness the King of Chu, is it possible that this black powder can be made into a weapon like a fire oil bomb, and then explode when it is thrown on the enemy's side?"

Although Qin Qiong's lung disease has been cured, he has been suffering from diseases for many years, and the whole person still looks relatively thin, but when he said this, his face was excited, which made Li Kuan worry that he would not faint.

"That's right, virtuous son-in-law, this black powder is so powerful, if it is used on the battlefield, even if it can't kill many people, that sound alone is enough for people to eat a pot."

Cheng Yanjin's eyes also lit up, and he felt that this black powder was really a good thing.

"Yes, but there are many restrictions on the use of this black powder, and it is not that you can win the battle with it."

Black powder had already equipped some armies on a large scale in the Song Dynasty, but the Great Song Dynasty still couldn't defeat the Jin State, the Western Xia, and the Mongols.

Li Kuan didn't want everyone to pin all the victory or defeat of the war on black weapons.

After all, this is only a relatively primitive gunpowder, and the first time you use it, maybe the effect will be a little more significant, and when the enemy gets acquainted with the situation, the effect will be greatly reduced.

Besides, the large-scale production of black powder is also a trouble in itself.

Whether it's storage or transportation, it's a big problem.

Don't kill any of the enemy by then, you will be killed and injured by the explosion, and ordinary soldiers will not dare to use it, then it will be funny.

"Kuan'er, who knows how to make this black powder?"

Li Shimin looked at the big pit in front of him intently, and kept thinking about the pros and cons in his mind.

First of all, the method of making this black powder must be highly secretive, whether it is for one's own safety or to avoid transmission to the enemy country, this is a must.

Secondly, since this thing has been produced, it must be mass-produced to have actual combat significance, and it is also a question of where to arrange the production and who is responsible.

Coming into contact with such a secret character is destined to not have much freedom.

Finally, do you want to consider nipping this black powder in the bud?

Li Shimin did not think about this idea, but he finally gave up.

With his understanding of Li Kuan, he knew that no matter what he did, he had a purpose.

Now that the black powder has been made, he must think that this thing is a thing that does more good than bad for Datang.

"Your Majesty, the current black powder is all being made by Liu Yuan, the son of Weichen."

Li Kuan himself must know it, and Li Shimin himself is naturally clear.

"I want to set up a special gunpowder bureau to make black powder and related weapons, what do you think?"

"Your Majesty Shengming, this black powder is very important, it is necessary for a special imperial court yamen to be in charge, once it is determined, Weichen can let Liu Yuan go to guide it first."

"Well, today's matter will be kept secret first, and everyone should not spread it at will."

Vaguely feeling the importance of black powder, Li Shimin felt that he still had to discuss with several important ministers what to do.

However, regardless of the final outcome, there is no harm in keeping today's events a secret.

Seeing that the sun had set, Li Shimin refused the proposal to stay in the courtyard of the Chu Wangfu for dinner and drove back to the palace.

The other courtiers naturally went back to their own homes and looked for their own mothers.

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