After accompanying several wives back to the door, it was already dark, and now everyone was celebrating the New Year at the same time. The so-called curfew has been lifted on the streets, so everyone can enjoy themselves. And even inside the palace, there was a lot of joy, and even Li Shimin, as the emperor, was happy with the people outside.

"Jun Xian, should we release the blast rod?" Mulan said first.

"Burst rod? What's that? Li Junxian asked.

"Burst rod? Junxian, don't you know? A blasting rod is to put a small bamboo tube into gunpowder, and then ignite it to become a bursting rod! Mulan said.

"Oh? You're talking about firecrackers! Ah, firecrackers? Are there firecrackers and gunpowder in this era? Li Junxian suddenly asked in surprise.

Li Junxian remembered very clearly that gunpowder should have been used on the battlefield for the first time at the end of the Tang Dynasty. But now it's the beginning of the Tang Dynasty, but why are there firecrackers and gunpowder? Gunpowder should have been really used on a large scale at the end of the Tang Dynasty, why has it been used now?

"Jun Xian, what's wrong with you?" Seeing Li Junxian's surprised look, Mulan immediately asked.

Li Junxian immediately said excitedly: "Mulan, why don't you use gunpowder in the military?" The use of gunpowder in military affairs can be said to be a great weapon, a great revolutionary change! If gunpowder is used in the military, then Datang will be invincible in the world! Why don't you use gunpowder for military purposes? Li Junxian was very excited, and he was a little incoherent.

Li Junxian heard that there was gunpowder in the early Tang Dynasty, which was called an excitement. Because gunpowder is the most important difference between cold weapons and hot weapons, as long as you start using gunpowder, you can enter the era of hot weapons. Even, if it goes on like this, it can advance the process of the Tang Dynasty in many parts. It can be said that gunpowder is the largest junction in the history of warfare. If Li Junxian had known that there was gunpowder, why was he so afraid of the Turks at that time? I'm afraid that Li Junxian will dare to let the Turkic cavalry stay in the Tang Dynasty, and even Jieli Khan will not have to return to the grassland. But now there is no gunpowder in the military, which makes Li Junxian feel a waste.

"Jun Xian. What's wrong with you? How can gunpowder be used in the military? You're still a general! Mulan asked in surprise.

"Why not? If the army uses gunpowder, then I am afraid it will sweep the world! Li Junxian said.

Mulan didn't know what it meant, so she had to say, "Junxian, you don't know what gunpowder is?" Or is that gunpowder you are talking about and ours not the same thing? Jun Xian. I'm going to buy some firecrackers so you can see what gunpowder is! ”

Mulan quickly asked people to buy some firecrackers filled with gunpowder, then lit the fuse and held it directly in her hand.

"Mulan, throw it away, it's dangerous!" Li Junxian saw that Mulan was actually doing such a dangerous move, and immediately shouted.

"Smack!" A very crisp sound sounded, indicating that the firecracker had exploded.

"Mulan?" Li Junxian asked in horror, he was very afraid that something would happen to Mulan.

However, the sad thing did not happen. Mulan still had the firecracker in her hand, and she didn't have any injuries. Moreover, the firecracker was still smoking, and it did not explode.

"What? This is gunpowder? Li Junxian asked in surprise.

Li Junxian looked at the gunpowder that couldn't even blow up a small piece of bamboo, and was speechless. The bamboos were filled with a lot of gunpowder. But these gunpowders can't even blow up such tiny bamboos, and Mulan dares to use them all to play with firecrackers, which is too ruinous. The gunpowder of later generations was devastating, but the current gunpowder can't even blow up bamboo, how can this be used in the military?

"Mulan, this is gunpowder?" Li Junxian asked.

"Yes! That's gunpowder! This is the gunpowder that those Taoist priests have researched. Jun Xian, you say. Can this gunpowder be used in the military? Mulan asked.

Li Junxian shook his head, not to mention that this kind of gunpowder is not used in the military, and it is not even powerful enough for ordinary fun. The firecrackers that Li Junxian played with in later generations were all very loud, where they were like this, they could only be as loud as a sneeze, which was not enough to scare people. Not even a person can be scared. How can it be used in combat?

Li Junxian recalled the memories in his mind again, because he clearly knew that gunpowder was the first time it was really used on the battlefield at the end of the Tang Dynasty. However, gunpowder was now available, but it was obviously not powerful enough to be used on the battlefield. However, Li Junxian quickly understood that it was because the current gunpowder was seriously insufficient. And at the end of the Tang Dynasty. Once again, gunpowder had been refined over the centuries, and by that time it was enough to be used on the battlefield. This is the difference, the difference between the formula of gunpowder and the power.

"Mulan, why don't you ask someone to get some materials to make gunpowder?" Li Junxian asked.

Mulan didn't know what Li Junxian meant, but after all, Mulan was Li Junxian's woman, and everything was subject to Li Junxian's requirements. Mulan soon sent someone to buy some charcoal, sulfur, and saltpeter. However, Li Junxian also saw some other things in it, such as arsenic, and some other minerals, which even Li Junxian didn't recognize.

"How can there be arsenic?" Li Junxian asked.

"This is also one of the materials of gunpowder!" Mulan said.

Li Junxian couldn't help but feel a little painful, whether this gunpowder hurt people by explosion or poison! What's more, if the gunpowder in these firecrackers can have arsenic, then wouldn't all the smoke be poisonous? Thinking about Li Junxian shuddered.

Li Junxian didn't think much about it, and immediately began to make gunpowder according to the teaching methods of later generations. Moreover, the gunpowder made by Li Junxian was according to the formula recognized as the largest in later generations, and Li Junxian quickly made it according to the process. Because the recipe for making this black powder was semi-public in later generations, Li Junxian, a historical researcher of liberal arts, was also able to know a lot of methods for making black powder weapons.

"That's it! It's done! Li Junxian said.

Mulan saw that Li Junxian had finished making the so-called new firecrackers, and immediately took one to play with, and Mulan quickly lit one and held it in her hand.

"Let go!" Li Junxian shouted.

"Jun Xian, it's okay!" Mulan said.

Mulan still regarded this firecracker as the original kind of firecracker that couldn't even blow up bamboo, so she didn't care.

Li Junxian hurriedly snatched the firecracker and threw it into the distance.

"Bump!" With a loud bang, the firecracker exploded violently.