After I was reborn, I became a plug-in for the country

Yinfeng rolled his eyes slightly and gave up struggling.

Anyway, he had all his speeches ready, and as long as Khan Ama asked, he would say what he thought.Regardless of whether Khan Ama believes it or not, he will bite this statement to death and will not change it.

Seeing this, the system comforted: "It's okay Your Highness, even if your father finds out that you are lying and deceiving, there are still at least 25 years before you will be deposed."

Yinfeng: "..."

If you don't speak, no one will treat you as dumb, okay?

Now that the fertilizer has been resolved and there is no battle report from the front line, the courtiers have no other important matters to report, and the morning court has just dispersed.

Yinreng's course is over, although the teaching duties of the masters are gone, but there is another job for Zhan Shi in the Prince's Mansion. Generally speaking, they are still from Yinreng's side.The other masters are okay to say, only Mingzhu, Yinfeng has not thought of a way to get in touch with him until now.

With no homework, and no other things told by him, Khan Ama, this is probably the happiest period of time since Yinfeng came back.

Seeing that the ministers had all left the hall, Yinfeng turned around and went back to continue studying his gunpowder ratio.He raised his feet, but Khan Ama stopped him and asked him to stay and talk.

There are only two father and son left in the huge Hall of Supreme Harmony.

Kangxi stepped down from the dragon chair, stared at his son and asked, "Do you know the exact location of the phosphate mine?"

"My son doesn't know." Yinfeng touched the tip of his nose, avoiding his gaze from Khan Ama.

In fact, he not only knew the location of the phosphate rock, but also knew the detailed method of how to extract phosphorous powder from the mine.

Kangxi said jokingly: "It's not mentioned in the book?"

Every time this child tells a lie, he always touches his nose. I don't know if he has discovered it himself.

"My son never reads carefully." Yinfeng continued to evade.Khan Ama will not expose it directly, and he will never take the initiative to confess.

Kangxi looked at Yinreng a few more times before striding away.

"Congratulations to Khan Ama." Yinfeng bowed his head and said.

The system whistled: "It's only one step away."

"To shut up!"

This is probably how the rest of my life feels after being cut off.Yinreng rubbed his hands and prepared to go back to Yuqing Palace to study gunpowder.

He can't do the gunpowder for the time being, but it is also possible to configure the gunpowder first.

After returning to Yuqing Palace, Yinreng went straight to his laboratory.Before entering the door, he specifically told Huaiqing not to allow anyone to disturb him.

Eunuch Huaiqing personally guarded the door of the laboratory. When he saw a young eunuch coming this way, he drove away with fierce eyes in advance.

Since this room was used as a laboratory, Yinfeng found an excuse to let the Ministry of Internal Affairs repair it from inside to outside, and removed all the things in the original house, leaving only cabinets, desks and other furniture.

The cabinet and desk are also provided with blueprints by the system. He drew them and asked someone else to make them, which is no different from the console bookcases of later generations.Except that there are no chemical reagents or microscopes, this room basically meets the requirements for a laboratory.

Yinfeng locked the door from the inside, and took out a few things stored in the bookcase, and a milky white porcelain bowl.After he put on the protective equipment and cotton gloves, he carefully took out a piece of sulfur from the cotton cloth package, put it in a porcelain bowl, and prepared to grind it into powder.

The protective mask he wore on his face was improved by drawing on the experience of the previous flower planting period.

The high-quality cotton yarn is specially used as the material, which does not affect breathing at all and prevents inhalation of smoke and dust.Cotton gloves are made according to the system's recommendations to replace the disposable gloves of later generations to prevent skin contact with powder.

For the sake of Yinreng's principle of confidentiality, these two things were not obtained from the House of Internal Affairs, but were obtained by Eunuch Huaiqing, a young expert in Yuqing Palace.

After putting everything away, Yinfeng began to grind it wholeheartedly.

The sulfur material is not so hard, and it can be crushed into powder with a little force.For fear that the powder would be too coarse to affect the effect of the gunpowder, Yinfeng specially ground it for a while longer.

After a quarter of an hour, the sulfur powder was ground.Yinfeng took out saltpeter powder and charcoal powder that he had prepared earlier.

Just as he was about to mix it all together, he suddenly hesitated.

"Are you nervous, Your Highness?" the system asked.

Yinfeng nodded unconsciously, "A little bit."

Thinking that if he was not careful, what he was working on might explode directly, and Yinfeng flinched suddenly.But it's not his style to back down when things come to an end, Yin Reng raised his spirits and prepared to continue mixing.

The system suddenly said again: "Friendly reminder, has your Highness forgotten one thing?"

"What?" Yinfeng looked down at the utensils on the table, "The powder is ready. Although it cannot be sieved, Gu has been ground fine enough. To ensure that the room is dry, Gu also asked people to open all the doors and windows in advance. It's been exposed to the sun. What's missing?"

Knowing that open flames are the most taboo for storing gunpowder, he dared not even put a single wooden utensil, and even the bookcase and table were made of stone.

Yinfeng suspected that the guy in his mind couldn't persuade him, and had already started to fool him in different ways.

The system is easy to take care of, "Does your Highness feel that you lack a steelyard in your hands and in your heart?"

"Weighing?" Yinfeng was puzzled, "What are you talking about...weighing!"

To be finished!

He knows the proportions.However, at this critical moment, he actually forgot that there is a need to weigh before mixing!

Yinreng looked at the sulfur powder in the porcelain bowl, but he didn't know the exact amount. If he mixed it rashly like this, wouldn't it explode immediately?

"How about we change the day?" The system suggested.

"No." Yinfeng refused straight away, "Today's business is over today!"

The arrow is on the string, if we don't launch it now, we will have to find another time to launch it later.

"..." His Royal Highness is quite unnecessary.

Yinfeng stabilized his hand and mixed three different powders together.

Grind and use a small hammer to mix carefully.All the powder was poured onto the paper.

After finishing everything, he breathed a sigh of relief and asked, "Can we directly ignite the fire next?"

The system turned into an adult, and he held his chin in his mind and said: "Theoretically speaking, gunpowder is usually put in a container, paired with twisters, and ignited with fire."

Yinfeng looked around and saw that the room was empty, except for the ones he wore on his face and hands, there was really no other cotton thread.

He opened the door and said to Huai Qing who was standing guard outside, "Go get cotton cloth and scissors."

Just as he was about to close the door, he added, "There is still a fire bag."

Huaiqing said "嗻", and hurried to find what he wanted.

Yinfeng closed the door, leaned closer to the table, half bent over and slowly folded the paper, gathering a small pile of powder in the middle.

After watching the powder gather, he said to himself: "I don't know how powerful these are?"

"We can't blow up this room." The system said affirmatively.

It glanced at it just now, this little powder can be burned at most, and its power must be far worse.It is precisely because it knows that its power is not great that it no longer dissuades Yinfeng.

There are some hardships that you have to experience yourself to know the extent of the suffering.

"Really?" Hearing what it said, Yinfeng's nervousness just now dissipated, and there was still some eagerness in his eyes.

"The things are brought, Your Highness." Huaiqing patted on the door and shouted.

Yinreng turned around and walked over, opened the door, took the things and then ordered: "Huaiqing, stand far away."

Huaiqing nodded, trotted all the way to the small garden, and asked Yinfeng through the corridor: "Is your Highness far enough?"

Yinreng perfunctory him: "That's enough, just stand still."

Then he took out the scissors and cut the cotton cloth into long lines.The three strands are mixed into one strand and twisted into a thin hemp rope to make a twist.He stuffed one end of the twine into the bag of gunpowder powder he had just wrapped.Putting the bag of powder on the ground again, he pulled the other end of the cotton thread to the door.

In order to prevent too much noise, he did not dare to open the door.

Yinfeng squatted down halfway, held the fire pocket and said to the system: "You come to count down, and alone to light the fire."

"Okay." The system readily agreed.

"three…"

Yinfeng swallowed.

"two…"

Yinfeng's forehead was already sweating.

"one!"

"and many more!"

They both shouted at the same time.

System: "..." Stop kicking at the door?

Yinfeng wiped the sweat from his forehead with his sleeve, "I'm afraid that the sweat will drip down and affect the effect."

After speaking, without waiting for the system to say anything else, he aimed the torch in his hand at the cotton thread.

The flame devoured the end of the cotton thread in a short while, and then continued along the end of the thread, burning slowly all the way.

Yinfeng's heart beat extremely fast, and his eyes were fixed on the flames.In addition to the sound of the flames burning, the only sound left in the room was Yin Reng's heartbeat.

Soon, the pack of gunpowder is about to burn.

Yinfeng couldn't help holding his breath, and covered his ears with his hands.

The flame burned smoothly into the powder pile of gunpowder.

Yinfeng's eyes widened, waiting to see how it exploded.

but…

He squatted until his legs became numb, but the flame gradually extinguished in the gunpowder pile.

No, Yinfeng leaned forward to see what was going on.

At this moment, a small pile of powder that had been gathered together "collapsed" and sprayed Yin Reng's head and face.

"Cough cough cough..."

Yinfeng ran out of the room quickly, leaning on the pillars of the corridor and coughing violently.

Seeing his master's dark face, Huaiqing hurried over and asked anxiously, "What's wrong, Your Highness?"

"Go fetch water..." Yinreng coughed a few more times, breathed evenly before saying: "Go fetch water to wash Gu's face."

"Yes yes yes" Huaiqing hastily replied several times.

When other servants heard the movement, they all gathered around in fright, wanting to see what happened to the master.

Yinfeng stood up straight, looked around and said sharply: "No one is allowed to say a word about today's matter! If you let Gu hear a rumor outside, be careful of your heads!"

The little eunuchs were so frightened that they immediately knelt on the ground, "I would like to follow His Highness's instructions."

Yinfeng took off the mask and was about to throw it away, but he was afraid of being picked up by the servants and talked about it, so he could only hold it tightly in the palm of his hand.He thought in his heart that it was very risky, fortunately the amount of mixing just now was not too much, otherwise his face would be ruined.Fortunately, the weight is not too much, the walls of this room are thick, and this movement is probably only heard by Yuqing Palace.

The system said at the right time: "Your Highness now knows how dangerous that thing is."

"I know" Yinrong wiped his face, "I should have gone over immediately just now, I should have waited patiently. Besides, I still need to prepare a steelyard for the next experiment."

Moreover, he didn't realize until he got closer that the ratio and weight were actually wrong, otherwise it shouldn't be a muffled sound, but there should be a flame and then explode.

System: "..." You know that?