"Boom!"

A bang!

A large crater was blown out of the mud, and the broken crockpots flew in all directions, shooting in all directions, hitting a half-man-tall shield with a crackling sound. Pen ~ fun ~ pavilion www.biquge.info

Looking at the large pit on the ground, which was almost two feet or so, the surrounding alchemy monks all straightened their eyes and cheered.

"Really? Can it really work? ”

Gu Hongzi's excited dancer fist looked at Qing Xuzi with a little respect.

For this senior, he has always had a heart for transcendence. When I returned to the house yesterday, I was thinking about how to achieve the explosive power that Pei Min said, and even did a lot of research experiments, but it turned out that in the end there was no effect.

He increased his power by increasing the amount of saltpeter, but was unable to form an effective explosive force.

Except for burning, it is burning, sleepless night, nothing is gained.

But today, seeing that Qing Xuzi came up with a way to solve the burning problem in just one night, he only admired the five-body throwing himself to the ground, and said excitedly: "It turns out that the younger generation has ignored the jar, and the power of saltpeter, sulfur, and charcoal has been emitted through combustion." There is no power at all, as long as there is a jar, squeeze the power of saltpeter, sulfur, and charcoal in one place, and explode in an instant. This is just like our usual alchemy, the alchemy furnace must have pores, otherwise the alchemy furnace will burst open, and the reason is the same. ”

Qing Xuzi looked at this junior with a little surprise, and couldn't help but have a feeling that the back waves of the Yangtze River were pushing the front waves. I had the original strategy, coupled with the conversation with Pei Min yesterday, so I had today's black powder, but I didn't want Gu Hongzi to have some understanding, and even saw through the key to the existence of the clay pot.

Pei Min also looked at Gu Hongzi with a little surprise, and with his common sense in the 21st century, Gu Hongzi's explanation can be described as bullshit.

The real explanations are detonation of heat, detonation, detonation velocity and detonation pressure. Saltpeter will quickly release oxygen when heated and pressurized, causing charcoal and sulfur to burn violently, and instantly produce a large amount of heat and nitrogen, carbon dioxide and other gases. Due to the rapid expansion of the volume, the pressure increases violently, causing an explosion.

Of course, Pei Min doesn't remember these scientific explanations very clearly, and Gu Hongzi definitely can't say it, but he vividly expresses the principle in another way.

Only a certain amount of space is enough to trigger an explosion. This is the key to the explosion of black powder, if there is no space, the black powder will only burn, not explode.

Pei Min walked up quickly, and when he saw that the residual force of the explosion went straight into the ground, about two feet or so, he shook his head regretfully.

Qingxuzi who followed behind said: "Guogong thinks it's inappropriate? ”

The rest of the alchemy priests also looked at Pei Min in surprise.

Pei Min said: "Based on the amount of saltpeter we use, the power of this black powder has not reached the desired effect. If you want to open up the mountain and rubble, it is not enough. The proportions of the match still need to be adjusted. After a pause, he said, "Why don't you try one nitrate, two sulfon, three charcoal, or one sulfone, two sulfon, three charcoal......

He vaguely remembered that black powder had a law of one, two, three, but he couldn't remember what one he was, two and three.

Hearing Pei Min's words, Gu Hongzi shook his head and said: "The formula of black powder is saltpeter, sulfur, and charcoal, which is undoubtedly confirmed...... But the ratio of one, two, three, it is impossible to make black powder in any case. The main force of black powder should be saltpeter, and even three taels of saltpeter are not enough to trigger the explosion. ”

Qing Xuzi also nodded and said: "What Gu Hong Daoyou said is right, the saltpeter side is the main force, and the ratio of one, two, and three will never succeed." ”

Pei Min frowned slightly, making sure that he was not mistaken, and couldn't help but insist: "Try it!" ”

Qing Xuzi and Gu Hongzi did not refuse, and there were no lack of failed cases of their alchemy, they had already taken it for granted, and they were not anxious, and the six of them configured different formulas according to the ratio of one, two, three.

This person has a lot of strength, and the six of them are only for a moment, and they have already allocated many copies according to the mantra of one, two, three.

The result is as Qing Xuzi and Gu Hongzi said, no matter what it is, it has no half effect, and even the explosion has not been realized.

"How?" Pei Min was a little dumbfounded, could it really be that he remembered wrongly?

Gu Hongzi said: "Poor Dao thinks that if the power of black powder is to be improved, saltpeter must not be less than sulfur and charcoal, at least not less than their sum, followed by charcoal, and then sulfur." The ratio of one, two, and three is impossible to make the black powder that the national government needs. ”

Pei Min was silent, and after thinking about it, he suddenly put his hands together and said, "Try it like this, one pound of saltpeter, two taels of sulfur, three taels of charcoal, try it with this one, two, three?" ”

Qing Xuzi and Gu Hongzi's eyes lit up, and the two cooperated with each other!

It didn't take long for a completely new recipe to be made......

The material is mixed into small clay pots, buried in the ground, and the fuse is lit.

"Boom ......"

The loud noise finally came, and the feeling of shaking the mountains for a while was like a thunderbolt on a sunny day.

Pitch-black smoke rises into the air!

Fragments of sand and dirt are scattered......

The smoke dissipated, and a five-foot pit appeared in front of everyone......

Qing Xuzi and Gu Hongzi were stunned, this is obviously the same number, but the power is more than doubled.

"This is the power of black powder?" Qingxuzi realized why Sun Simiao would be so resolute in opposing his research at the beginning, this thing is in the world, and the pros and cons are difficult to decide. It's just that as Pei Min said, manpower can't reverse the general trend, let alone change the overall situation. Even if there is no them today, with Pei Min's understanding of black powder, there will be a day in this world.

"Haha, I don't think I'm mistaken!" Pei Min danced his fists excitedly and said: "One, two, three, one is not one, not one or two, but one catty...... Qingxu Dao Chief, Guhong Dao Chief, I'll leave it to you here. According to this ratio of two to three, you will make other minor adjustments to make the black powder as powerful as possible. With such a sharp weapon, opening up mountains and building mountains can be put on the charter. ”

Saying that, Pei Min said deeply to several alchemy alchemists: "Pei Min only thanked you for the great virtues on behalf of the tens of thousands of people in Longyou. ”

Most of the people felt embarrassed, they could see that Pei Min was the first contributor to the success of this test explosion.

Everyone hurriedly returned the salute humbly, thinking that they had not made a meritorious effort, and spent a lot of effort on the fine-tuning and improvement of this formula.

Pei Min left, and the six of them gathered in the research room specially built by Pei Min for them, and discussed together how to fine-tune the formula more reasonably.

Pei Min no longer hesitated, and personally wrote a piece of music, which was directly transmitted to the central Shangshu Province of the Tang Dynasty, the content was simple and not complicated, but it caused turmoil in the government and the opposition!

Open the Long Mountain, repair the Wusheh Ridge, and the stone is shocking.

The Silk Road has become the main source of finance for Datang, and it is precisely because of the prosperity of the Silk Road that Datang's finances have been in a healthy state.

The influence of Longshan and Wusheling on the Silk Road is self-evident, and people with a discerning eye can see it at a glance, but for hundreds of years, no one dares to open this mouth, not without reason.

Until now!

Pei Min's letter broke this situation.