Li forgets worry and hopes that Li Er will keep the explosive bag secret for the time being. The reason is quite simple, that is, he hopes that when he attacks Tubo and Koguryo in the future, the explosive bag can be used as a secret weapon to suddenly intimidate the enemy.

No matter Koguryo or Tubo, there is no chance of victory if they fight with the iron cavalry of the Tang army.

In history, whether it was the three expeditions of Koguryo in the former Sui Dynasty or the 19 years of Zhenguan, Li Er was deeply troubled by Koguryo's large and small cities.

The Tubo on the plateau also has the same situation, and it is even more difficult to break through due to geographical reasons.

In history, a small stone castle city killed and injured countless officers and soldiers of the Tang Dynasty.

However, if we rely on the combination of explosive bags and detonators, we can blow up the city wall in an instant.

Moreover, Li forget worry can be sure that for the first time, no matter Koguryo or Tubo soldiers, even if they are fierce and fearless of death, they may not be much better than their colleagues.

In this way, the Tang army can capture Koguryo and Tubo at the least cost. Isn't it beautiful?

Moreover, although there have been wars between the Tang Dynasty and Tuyuhun, East and West Turks, Gaochang, kuci, Dangxiang, Huihe, goguryo, Tubo, Baiji, Xinluo, Qidan, big and small Bolu, Nanzhao and other countries in history, in Li's view, only Tubo and goguryo are worth using explosives.

Therefore, explosives are kept secret for the time being. Only when the attack on Tubo and Koguryo is struck by thunder can the benefits be maximized.

Li forgets the reason given by you. Li Er and a group of big men agree very much. Gao Shilian, in particular, witnessed with his own eyes how powerful he was against the enemy.

Zhang Feiying's camp, where one man was in charge of the pass and ten thousand people could not leave, was conquered by the soldiers of the Tang Dynasty in an instant because of more than a dozen thunderbolts.

Such a powerful weapon can't be used easily.

The strategy put forward by Li Qieyou made Li Er and all the leaders agree.

In the midst of a cup of wine, they decided to take the western regions and Tuyuhun first, and then attack Tubo and Koguryo.

If all goes well, Li estimates that in 10 to 15 years, there will be an unprecedented powerful empire in the world.

Its vast territory is probably comparable to that of the open Mongolian Empire.

After talking about business, Li Erlong was very happy. Naturally, he drank happily. Finally, he was very drunk. Under the service of empress Chang sun and imperial concubine Yang, he returned to Chang'an city with a group of equally drunk princes.

The conspiracy between Li Qieyou and Li Er is not well known to outsiders.

However, a hemispheric experiment of the Academy set off another storm in Chang'an city.

Thousands of people witnessed the hemispheric experiment, including hundreds of officials and scholars.

Through their mouth, the content of the hemispheric experiment spread all over Chang'an city at the speed of natural light.

Although people may not understand the meaning of hemispheric experiment, they know a truth, that is, air is not empty, and its pressure is quite huge.

Understanding atmospheric pressure has nothing to do with people's life.

Even if you know this, how people should live, everything is as usual, and it will not have the slightest impact.

But this does not prevent millions of people in Chang'an City from burning "gossip".

If Datang has microblog, it is estimated that the recent Datang hot search list should be like this.

1. The disciples handed down by the Taoist ancestors are now in the world

2. Hemisphere experiment of Datang Royal Academy

3. Atmospheric pressure really exists

4. Your majesty granted the Duke of Fufeng County

5. A citizen of Chang'an killed himself for fear of being killed by atmospheric pressure

6. Li Ziyou, Duke of Fufeng County

……

In short, Li forget worry is now a phenomenal big man who has absolute popularity and dominates the list.

These disturbing things have no impact on Li forgetful, who lives leisurely in Dingzhou village.

The only small trouble was that the Taoist Gao Zhen, for various purposes, knelt in public for Li Qieyou and called him Shizu, but fooled the medicine King Sun Simiao together.

Sun Simiao's heart to Tao was quite firm, otherwise Li Er would have granted him the title, and Lao Tao would not have flatly refused.

Knowing that his "neighbor" was a disciple of the Taoist ancestor in the world, the Taoist immediately came to the door and respectfully asked Li forgetful to pay a courtesy, saying "Shizu".

This naturally made Li forget to worry blush to his ashamed old face. It was only when Su Changqing was around to persuade him to stop the old way.

But even so, at least the ten large and small Taoist temples in Chang'an really gave Li forgetful worry as a "Shizu" and caused him a lot of trouble in the future, which is not shown here for the time being.

Another little trouble is Chumo and his dandies.

This group of "gossip men" took the opportunity to congratulate Li forget you on his promotion to the Duke of founding county. Hula all came to Dingzhou village and tangled with Li forget you. They wanted Li forget you to teach them some knowledge that others didn't understand.

Li forget worry naturally knows that these bastards are so interested, of course, not because they love learning.

He is sure that these bastards want to learn something from him. When they go back to pingkang square or Hu people's wine shop to drink flower wine, they can boast and show off with those little women and Hu Ji.

In fact, when he taught dandies to mix vinegar and soda to produce carbon dioxide, it was a conspicuous experiment.

But even Chumo, the most unreliable, knows that this can't be used as a joke.

Otherwise, if it is spread out, it is difficult to ensure that those people of Zoroastrianism will not think of the original altar of Zoroastrian temple and the flame extinguished itself without reason.

Although everyone can be sure, even if Sabah miriman of Zoroastrianism knew it was their ghost, he would not make a public announcement.

After all, what is enshrined in the Yi Temple of Liquan square in Chang'an city is the purest solar flame, but Zoroastrianism has not suffered a loss.

But it's about Zoroastrianism. If you don't ask for trouble, why gamble? If any priest of Zoroastrianism wants to argue with them, although everyone is not afraid, it is also very troublesome, isn't it?

Therefore, the dandies never mentioned to others that they were "proud" of their "brilliant achievements", even Fang Xuanling did not know.

Li forgot to worry about the foolishness of the dandies. His eyes were about to turn to the sky, so he unwillingly taught these bastards a few small experiments.

What muddy water becomes clear and the water cup is turned upside down. Even monk Wenzai taught the dandies the "colorful rope" used to deceive the elders of the Li clan in Huxian county.

It's not easy to send the dandies away. Every few days, it's the day when Li forgets to teach college students.

But this day, before Li forgot to worry about going to the Academy, he saw Xu Jingzong sweating and running into his residence in a panic.

"Grandpa, something happened..."