"It's a big, big world, and there are seven landmasses in it. Pen ~ fun ~ pavilion www.biquge.info and these seven pieces of land are not all next to each other, they are basically divided by the sea. And we in Datang only occupy a small part of the largest piece of land...... The potatoes, corn, and other crops that he received came from another land to the east, across a large ocean from us...."

"There is something in the air called oxygen, a gas that we humans and animals must have, and if we can't breathe it in a short time, we will die. This oxygen is still ....."

............

At the request of the suddenly arriving emperor Li Shimin, Wu Yuanqing picked out the knowledge he would know about geography, physics, biology and so on.

Li Shimin and others, who had never been in contact with these things, were dizzy and amazed.

Especially in geography, Li Shimin is most interested. There is no way to be a qualified enterprising emperor, that desire for land is innate.

Knowing that the distant continent is currently not counting on the past, he picked up the countries around the Tang Dynasty and asked, after asking Southeast Asia, asking the Western Regions, after asking the Western Regions, he began to ask Central Asia and West Asia, and then even the European side did not let go, when Wu Yuanqing talked about the Byzantine Empire, Li Shimin asked the location of the Byzantine Empire, how far away it was from the Tang Dynasty, and everything, Wu Yuanqing only knew a rough idea, and could only say some things he knew, although he was vague and did not say anything clearly, but Li Shimin was still very happy.

When Wu Yuanqing talked about gunpowder, Li Shimin's eyes lit up, as if he was being talked to his heart: "Gunpowder, I know that it is used to make bombs, you have used it twice to save Cheng Qian, when Cheng Qian sent me the formula, I asked people to make it and try it, the power is indeed good, but it seems to be much less powerful than the bombs you made, and it is very dangerous, and it has injured several of my guards."

"Your Majesty, the reason why the power is small is that according to the minister's estimates, there is a problem with the process of making gunpowder, the gunpowder particles are not evenly screened, and the sealing is not very good, otherwise the same formula should not have the problem of much less power." What Wu Yuanqing gave Li Chengqian at that time was just a simple production method and did not write it in detail, plus just looking at the pictures and looking at the instructions, even if it was detailed to each step, it was easy to make it difficult to make it detailed, so as soon as he heard the emperor's words, Wu Yuanqing knew where the problem was.

"Well, I also think that there is a problem with their production method, Cheng Qian and I said that this thing is not mature yet, the power is not big enough, the ratio of gunpowder is also problematic, and it needs to be improved, and the ignition method is also more dangerous, and it is easy to get wet, and it still needs to be improved, I don't know if you have improved these aspects for so long" Li Shimin asked with an expectant face.

"Well, the minister is very busy, how can he have time to get these, besides, this thing can't be improved in a while, and the process materials can't be made of anything" Wu Yuanqing was embarrassed.

"Huh, busy? Do you think I don't know that every day you eat and sleep, or let the dancing girl dance and sing? Don't do your job" Li Shimin glared at Wu Yuanqing and said angrily.

Wu Yuanqing was so embarrassed by what he said, he scratched his head.

After glaring at Wu Yuanqing, Li Shimin sighed in disappointment: "The power is not enough, it seems that there is no way to use it to shock Feng Gu."

"Shocking Feng Gu? What do you mean?" Wu Yuanqing asked curiously.

Feng Gu is a person, Wu Yuanqing knows. The grandson of the famous Mrs. Xian, there is a real unknown emperor in Lingnan.

However, although Feng Gu covered the sky in Lingnan and occupied a land of 2,000 miles, he did not take advantage of the early establishment of the Tang Dynasty and had no time to take care of him to tear the soil and claim the king, but instead surrendered to the Tang Dynasty a few years ago and became the prince of the Tang Dynasty.

Speaking of which, Feng Gu should be regarded as having a great contribution to the Tang Dynasty, but listening to what Li Shimin meant just now, how did he want to scare and deter Feng Gu, Wu Yuanqing was a little confused.

Li Shimin's next words solved the confusion in Wu Yuanqing's heart.

Just like Wu Yuanqing understood, Feng Gu was the soil emperor of Lingnan and was deeply loved by the people and subordinates.

Although Feng Gu surrendered to the Tang Dynasty, the officials of the Tang Dynasty in Lingnan did not have any right to speak, and the emperor's will was not used there.

This can't help but make the emperor jealous, plus Feng Ang, Tan Dian and others have been fighting for many years, and they have not entered the court for a long time. Officials in Lingnan Prefecture repeatedly accused Feng Ang of rebellion.

As a result, Li Shimin ordered the general Lin Du and other soldiers from dozens of states in the rivers and mountains to go to the crusade. However, Wei Zheng thought that Feng Ang had no objection, and persuaded Li Shimin to send envoys to appease him first, but Li Shimin listened to the persuasion, so he stopped the army and decided to send envoys to comfort him.

But he was worried that he wouldn't be able to appease Feng Gu, so Li Shimin wanted to make preparations with both hands, and shocked while appeasing.

So I thought of the bomb that Wu Yuanqing made, but I felt that the bomb was not powerful enough, and I was afraid that I couldn't scare it, so I was so disappointed when I learned that Wu Yuanqing had not improved and enhanced the power of the bomb.

"Enwei is equally important, soft and hard, Your Majesty thinks thoughtfully" Wu Yuanqing smiled and patted his ass.

"It's a pity that the bomb is not powerful enough, I'm afraid it will be difficult to shock Feng Gu" Li Shimin shook his head.

"Your Majesty, why does your majesty think that the bomb is not powerful enough to shock Feng Gu, the minister thinks it's no problem at all" Wu Yuanqing heard Li Shimin say that he was afraid that he couldn't scare Feng Gu, and he was hehe, the bomb couldn't scare a bunch of turtles, what kind of joke. I can't look down on this biggest invention that changed the world.

"Not to mention the bombs I made people, even if you make a bomb at most, it can only kill a few people, think that Feng Gu has been in battle for a long time and is used to seeing life and death, I'm afraid this kind of deterrence is still a bit small," Li Shimin shook his head again and said.

"Well, why do you have to scare people with a bomb like the one I made, if only we made it bigger. It's nothing more than a container, fill it with gunpowder, and seal it. As long as the container is suitable, it is easy to make even the largest bomb. Besides, we just want to scare people, not throw them into the crowd, so we don't need to think about the convenience of carrying. Your Majesty, you make a big urn, then fill it with gunpowder, then seal it, bury it on the hillside in front of Feng Gu, and light it up with a boom and an explosion, and half of the hillside can be blown down. I don't believe it, I can't scare that Feng Gu," Wu Yuanqing said, with a gesture.

Li Shimin, the first emperor of the ages, fell into a strange circle of thinking, and he didn't expect that he could make the bomb bigger to increase its power. With such an IQ, Wu Yuanqing said that he was very anxious.

Wu Yuanqing's words were tantamount to an initiation for Li Shimin, and they were immediately transparent.

Li Shimin was overjoyed, turned around and left.

"Your Majesty, Your Majesty, when will you let the ministers out?" )