"The King of Wu, His Highness, the King of Wu, outside, there is a ghost outside... the Taoist priest said that his name is Du Chunzi."

The soldiers didn't know what was wrong, their expressions were a little frightened and their speech was a little unsightly.

Li Yuanai was excited and said, "Please come in quickly."

The soldiers did not obey the order, but said tremblingly: "Du Chunzi, I don't know if it's a human or a ghost, your highness or not."

Li Yuanai looked surprised and frowned: "Don't talk nonsense, invite him in." What he was thinking in his heart was that I had Monkey Brother acting as a bodyguard. Is this person who was afraid of ghosts in broad daylight?

The soldiers had to go down and invite them.

"I don't know Du Chunzi has met the King of Wu!"

A Taoist priest with a thin bone, sunken eyes, a blue face, and a ghost-like face appeared in front of Li Yuanai.

Li Yuanai looked at Du Chunzi in front of him. Even though he was a little mentally prepared, he was really shocked. The most classic sentence in later generations emerged in his mind: "The person riding a white horse may not be a prince, but a monk Tang."

This is the most appropriate thing to use at this moment.

Not all Taoist priests look like immortality, and they also act like ghosts and zombies.

Du Chunzi in front of him obviously took too much gold and stone elixir and developed a skill of inviolating all poisons. He turned himself into a look of being neither human nor ghost, and even his skin had changed a little.

If this guy was in later generations, this guy would definitely be a special actor. He would not wear makeup when he played the role of a zombie. He would just put on the official uniform of the Qing Dynasty and his feet would be a zombie that would be replaced.

It was also a blessing that he lived in seclusion in the mountains without caring about the world. If he really wanted to walk in the world, Li Yuanai was really worried that the timid people would have to scare him to death.

When Shi Pantuo saw Du Chunzi's appearance as if he was neither human nor ghost, he unexpectedly smiled. He didn't expect that there was a stranger in the world than himself.

"The Taoist master does not need much politeness!"

Li Yuanai raised his hand and asked someone to present Chen Shuozhen's sword, pressing the switch on the hilt of the sword with one hand, and pulling out the sword with a little effort with the other hand.

As the sound of flint rubbing against steel came, the sword in his hand was already wrapped in a ball of flame, and he exclaimed: "The Taoist priest has made this mechanism ingeniously cleverly. Gu studied it for a whole night before he could see through the mystery. But if Gu really wanted to build it according to the template, it might not be so detailed."

Du Chunzi didn't know how to answer for a while.

One of my own brainstorms is to see through it overnight, this naked slap in the face.

But thinking about his apprentice, he could only bite the bullet and say, "Your Highness the King of Wu is very thoughtful and has the power of the Gongshu squad. It is also a blessing for me to enter the eyes of your highness."

He was inspired by this. He had studied the simple and meticulous work of the barrel truck. He was amazed.

Therefore, I know that Li Yuanai is extremely talented in this regard.

Li Yuanai said: "This sword is not the key, the key is the fierce ignition oil in the sword. It is very common to be able to purify the fierce ignition oil. I attach great importance to this technology, but I don't know if it can teach you enough."

Du Chunzi bowed and said, "What's the matter? Your Highness's so-called refining of hot ignition oil is just a distillation method."

Li Yuanai blinked his eyes and said, "Will this explode? This explosive ignition oil is a big deal."

Du Chunzi's eyes lit up and he said, "Your Highness is really an expert. This distillation method will increase the heat. If it is not restricted, it will definitely explode, and its power is quite powerful. However, this level of explosion can be restricted by means..."

Li Yuanai carefully thought about the meaning of Du Chunzi's words. Why do you think that this old guy like a zombie has seen the big world? This crude oil explosion? A small scene?

He looked interested and asked Du Chunzi to sit in the table, and ordered someone to bring tea.

Du Chunzi was knowledgeable and had been to Bashu. He knew that they had the custom of drinking tea. He lit up his eyes when he ate a tea and the feeling of stir-frying tea.

Li Yuanai has no time to introduce the good tea he made to him. The old guy handed over the distillation method and it would be okay to give him a few pounds.

"Master, let's talk about it!"

Du Chunzi said: "Just attach a tube to the edge and discharge the air can effectively prevent explosion." He said, pouring some tea in the cup on the ground, dipping his fingers into water, and drawing a model on the ground.

Li Yuanai looked at the strange model on the ground in shock and couldn't help but say, "The pressure reduction device, yes, this physics is in vain." He clapped his left palm and right palm, "Pressure is the key to the formation of an explosion. Just use a pressure reduction device to effectively prevent the explosion."

At this moment, it was Du Chunzi's turn to look stunned.

What pressure is not stressful, I can’t understand!

Li Yuanai said in surprise: "The Taoist is so talented that he actually has such a wonderful idea to extract the hot turmeric oil in a way that relieves pressure. The Lone King was convinced..."

Du Chunzi was a little embarrassed and said, "Is this very difficult?"

Li Yuanai said in surprise: "Is it very simple?"

Du Chunzi pondered for a moment and said, "Compared with the alchemy furnace, this is a beginning! Your Highness doesn't know that we, those who have cultivated immortals and achieved enlightenment, focus on the four nourishment, nourishing qi, nourishing spirit, nourishing body, nourishing food, and the lineage of the Tao, pay attention to nourishing food. The spirit of a person is dominated by the body, and the body is guaranteed by food. In order to maintain the purity of the spirit, we must eat less fireworks on earth, so "Baopuzi" says: stop stinking and filth, resting food and clearing intestines. If I don't have any meticulous methods, Kang Kang practices to the realm of fasting."

Li Yuanai asked as if he was listening to a heavenly book, "I really don't eat or drink?"

Du Chunzi smiled proudly and said, "We still need to drink water, but it is not too much for the collected dew. If you want to be alive, you should clear the intestines. If you want to go through it, you will not die, and there will be no residue in the intestines. Grains and grains are definitely not eaten. If you really want to be hungry, you will fill your stomach with elixirs."

"This gold and stone thing is given by God. It can live long and also require human life. It needs to be used to suppress fire to eliminate the toxicity before it can be taken. The best pills need to be practiced for at least 9981 days. The fire cannot be cut off and the qi cannot be eliminated, so the alchemy furnace is very prone to burst. I have a good friend who once used sulfur, saltpeter, realgar and honey to refine the elixir and ruined the house..."

Before he could finish his words, Li Yuanai almost choked his saliva when he heard it messy.

Sulfur? Saltpeter? Realgar? Honey?

Is this alchemy?

It's clearly a black gunpowder!

It's a great fate if you don't blow it up.

Du Chunzi was stunned and saw Li Yuanai recovering from his breath: "At first, I destroyed the seven-door alchemy furnace in a year, and then improved it many times. Within ten years, this will never happen again."

"Excellent, amazing!"

Li Yuanai understood it. Isn’t this just because it was blown up and it was coming up with a set of equipment that would not be blown up.

Although Du Chunzi didn't know what a pressure reducing device was, the thing he designed was undoubtedly a set of pressure reducing equipment.

In an instant, Du Chunzi's zombie image became tall and clear in Li Yuanai's heart.

Cultivating immortals?

No, this is called scientific research.

It is to study with life.

How did black gunpowder come about?
Chapter completed!