"Your Majesty, I found that the gunpowder in the arsenal was wet and then dried again, and its power seemed to be even greater. I never thought about the reason here, so I asked Your Majesty for advice!" Ge Hong said.

When Liu Yu heard this, he immediately felt energetic.

Ge Hong is a master who has left his name in history. If he only wants to force him to hold him to his official position, he would underestimate this master who means alchemy and practice Taoism.

After Liu Yu summoned Ge Hong, he quickly shocked Ge Hong with a series of common sense of chemical knowledge.

Ge Hong, who was shocked at the time, once believed that the current emperor was also a fellow Taoist, and was extremely obsessed with Taoist practice.

However, after Liu Yu lifted his appetite, he brought him to the Yantieng and the Bingbei Office to serve.

For some time, whenever Ge Hong encountered some difficult questions, Liu Yu was always able to give answers from an amazing perspective.

In this way, Ge Hong admired and admired Liu Yu more and more.

Every time Liu Yu answers questions, he further conquered Ge Hong.

"These gunpowders are originally made up of three kinds of medicines, but no matter how they are stirred, the three kinds of powders always don't merge well with each other. If they encounter moisture, part of the heat inside will dissolve into charcoal and sulfur."

Liu Yu began to answer patiently.

Ge Hong listened very seriously beside him, and saw Liu Yu continue.

"When these gunpowders become wet, they will be more integrated and then dried again, the gunpowders will naturally become faster and more complete when they explode, and naturally they will be more powerful!"

The common sense of chemistry that Liu Yu once mastered has already begun to slowly lose memory as time goes by.

Therefore, after getting Ge Hong, a good student who is full of knowledge, he can be said to have tried his best to teach him.

Otherwise, in order to better conquer Ge Hong and prevent him from escaping from escaping the world after learning from the world, Liu Yu would have wanted to write a textbook for him.

"Oh, so that's it. Your Majesty is indeed a god-like man who comes to the world. He knows everything!" Ge Hong exclaimed from the bottom of his heart.

"There is nothing in the world, and there are rules to follow. Not only this gunpowder, but also all other material changes, there are traces to follow!"

Liu Yu said as he took out a brand new book from his arms.

"Your Majesty, what is this?" Ge Hong took it and said with some confusion.

"The secret of the law of all things in the world that I just mentioned is hidden in this book. If you can learn it thoroughly, you can create things out of thin air and turn stones into gold!"

Liu Yu said in an exaggerated tone.

"What? Your Majesty said, but is it true?" Ge Hong was immediately overjoyed when he heard this.

His nearly twenty years of concentration in practicing Taoism is not just about pursuing the way of immortality, but also about understanding the way of worldly changes.

However, even if you want to break the world, you can't think of anything.

Now that Liu Yu has repeatedly answered questions, Ge Hong has long believed in Liu Yu's level of "cultivation of Taoism".

Now that Liu Yu personally gave the treasure book, he was even more happy.

Ge Hong couldn't wait to open the book.

However, after reading the first three sentences, I was completely stupid.

"Hydrogen, helium, lithium beryllium boron carbon, nitrogen, oxygen, fluorine, neon sodium, magnesium, aluminum, silicon, phosphorus,,,,,,"

"Oxygen-silicon aluminum-ferrous calcium sodium-potassium,,,,"

Because the words here seem familiar, but they don’t know them, and I don’t know what they mean.

"Your Majesty, these are all He Ci. I am really stupid and I don't understand at all."

Ge Hong said to Liu Yu with a frown.

Liu Yu patted his shoulder lightly and comforted Ge Hong and said.

"Don't worry, my book book has been collected from all the great aliens, and it is not easy to understand."

"Even if there are words you don't understand, don't worry. All of them are added to the later part. With your intelligence, you will definitely understand."

"If you really don't understand, then write it down and ask me again."

Regarding his "good student" Ge Hong, Liu Yu was extremely willing to give it to him.

This knowledge is more useful to Liu Yu than conquering cities and land.

However, in this era, it is difficult for Liu Yulian to find someone who understands the most rough meaning of it.

What's more, most people today are illiterate, and there are very few people who want to find people interested among a group of literate scholars.

The most reliable person now is Ge Hong.

"Your Majesty, I understand. I will definitely collect it carefully and study this book to repay Your Majesty's kindness!"

The more Ge Hong couldn't understand this book, the more he felt that the connotation of this book was profound.

Otherwise, if he could see clearly with a glance, it would definitely be a scam.

"Treasure? No, no, I don't mean that." Liu Yu shook his head and said.

"Ah? After reading it, I will return it to Your Majesty immediately!" Ge Hong said reluctantly.

"Hahaha, you misunderstood. I don't mean that. What I mean is that if you want to study this book first, if you don't understand, you can ask me. After you have a thorough understanding, you will have to make a smart and smart person to carry forward this knowledge and be able to further improve it!" Liu Yu said.

In fact, this book written by Liu Qiao is an introductory material for basic chemistry.

Some basic common elements have been summarized and some common reactions have been added.

For the science of chemistry, it is just a broken stepping stone.

However, even such a simple stepping stone must be verified and carried forward by elites like Ge Hong.

After all, Liu Yu is the emperor, so he can't leave behind military and political affairs. He will take a bunch of chemists to experiment wildly every day.

"Your Majesty, should this kind of trick of stealing the sky be made public?" Ge Hong was so surprised that he could not close his mouth.

In his opinion, the art of cultivation in every sect is a secret in absolute secrets, and it is often beaten to death.

But Liu Yu's opinion is to let yourself learn first and then teach more students.

And it seems that the more people you teach, the better.

"Well, that's right, I mean that the road is open to the sky, and the sky is so big. I will never be able to tolerate other people just because one person understands the secrets."

Liu Yu said that, he took out another scroll and said to Ge Hong.

"There are so many mysteries in this vast world that you can never understand and study them thoroughly by relying on one person. There must be more people to make this science taller and higher, and know that you can touch the real sky!" Liu Yu said.

Ge Hong's insights about Liu Yu were confused and doubtful.

For a moment, he forgot to ask what the scroll he had just handed to him was. After hearing Liu Yu's words, Ge Hong's heart seemed to have opened the door to a new world, and he could not calm down for a long time.

It was not until Liu Yu left that Ge Hong remembered the scroll he had just held in his hand.

However, there are so many people in the iron field that Ge Hong still doesn't want such treasures to be easily shown to others.

Ge Hong immediately threw down his work in the iron farm and returned home.

As soon as he entered the house, he couldn't wait to open the scroll.

"Ah? This is?"

As soon as the scroll was opened, Ge Hong was shocked by the scene in front of him.

What appeared before his eyes was a huge map.

The map not only marks the place names, rivers and lakes of the prefectures and counties in the Central Plains, but also the very far distances of the Western Regions, Tianzhu, Donghu, Dongying and Nanzhong areas.

However, what interested Ge Hong the most was that the map actually marked the specific locations of a large number of copper and iron ore.

I don’t know who discovered the location of these copper ores.

"What does your Majesty mean to hand over this picture to me?"

Ge Hong fell into doubt for a moment.

However, as the scroll was opened, Ge Hong gradually understood the purpose of this scroll.

Behind the scroll map, the specific locations of various gold, silver, copper and iron ore deposits are marked, as well as approximate reserves.

Among them, the contrast gap between copper ore and iron ore is very strong.

There are also instructions left by Liu Yu.

Ge Hong finally understood this when he saw this.

"It turns out that Your Majesty gave me this map to tell me that I should improve the art of iron smelting to replace copper ore."

If you are an ordinary official or an idle person, you will not have such a thought after reading this map.

However, Ge Hong is not an ordinary person.

He is now in charge of the manufacturing of military weapons and knows that the next step in the development of the Han Dynasty is to use a large number of gunpowder weapons.

After the preparation and storage of gunpowder has been greatly improved, the production of gunpowder weapons will increase on a large scale.

However, in the manufacturing of weapons in the imperial court, almost all gunpowder weapons are made of copper.

Although there are some silver coins from the Tokyo Island, large-scale copper coins are still the mainstream currency.

In other words, gunpowder weapons are minted with money, and you can imagine how expensive they are.
To be continued...