Remove all the extra ornaments on Song Qingwan's body, including earrings, silver hairpins, step rocks, and belts embroidered with gold wire.

After carefully examining it, Chen Chao was completely relieved.

"Xiangye, what is this for?" Seeing these things being put on a wooden plate and taken out by the subordinates, Song Qingwan was extremely puzzled.

"Find something for Madame to do."

"What the hell are you doing?"

Song Qingwan was curious.

"You'll find out later."

After a while, under the command of Chen Chao, Han Lao carefully placed the required tools and a wooden barrel on the big case.

The movement is very gentle, for fear of bumping.

"Please scoop out the contents of the bucket and pour it on the sackcloth, about twenty catties, and then wrap it, and tie it tightly with hemp rope on the outside, just like wrapping a snack in oiled paper."

Song Qingwan looked at the contents of the bucket, the color was pitch black, and it was in the form of evenly sized granules, and when she rubbed it with her hands, there would be a sound in her ears, but it would not fall off the powder.

"What is this?"

Song Qingwan turned her head to look at Chen Chao beside her, puzzled.

Chen Chao smiled and didn't explain so much.

Earlier, with the help of Han Lao, Chen Chao mixed sulfur, charcoal and saltpeter in a ratio of 1:1.5:7.5, and then went through a series of operations such as crushing, soaking, compacting, drying, hammering, and sifting to finally obtain a granular object of uniform size.

All he had to do was make powerful gunpowder that could be used to blow up mountains and mine limestone.

Today, I heard Wang Xiaoer say that there was a problem with mining limestone in the mining area, and the demand for cement in several neighboring counties was huge, and the cement output could not keep up.

At first, he thought that he would send more victims to the mountains to mine limestone.

But when I think about it, now that reconstruction is being started everywhere, where can there be extra manpower to help in the mining area.

So, Chen Chao thought of explosives.

As long as the mine is blasted and the ore is divided into small pieces, the mining problem is solved.

In this way, labor consumption can be minimized.

In this era, preliminary black powder has been invented, which is commonly used in the filler of fireworks, and is an inadvertent thing made by alchemists, but because the ratio is not quite correct, and it contains other strange materials, such as mercury, honey, etc., it can only be heard and smoked, and it cannot exert the power of gunpowder at all.

Without asking so much, Song Qingwan picked up the wooden spoon at hand at the signal of Chen Chao, began to weigh the gunpowder, and then piled it up on the linen cloth on the table.

In order to prevent sparks from colliding and causing explosions, Chen Chao strictly controlled the entire production process.

In the process of making gunpowder, not a single metal utensil was used, and it was mostly pottery and wood products.

Song Qingwan's hand was very steady, which reassured Chen Chao, and when all the weighings were completed, they were piled up, forming an equivalent of twenty catties, Song Qingwan looked at Chen Chao beside her.

Chen Chaodao: "Put in a lead, and then tie it tightly with a rope, and tie it a few more times." ”

Song Qingwan nodded, first put in a long lead, turned the linen cloth up, like folding a quilt, and made it into a square, and finally took the hemp rope handed over by Chen Chao and tied it tightly.

"Do three more according to this."

"Okay."

An hour later, three improvised versions of the explosives bag were placed on the big case, Song Qingwan was highly nervous, her forehead was covered with dense beads of fine sweat, Chen Chao raised her sleeve to help her wipe it: "Madame!" ”

Song Qingwan smiled and lowered her head.

"Xiangye, what the hell is this for?"

"Hmm...... A very powerful weapon. ”

"Weapons?" Song Qingwan said confusedly. In her cognition, the sword is a powerful weapon, and this one is linen on the outside, and it is not very strong, how can it be considered a powerful weapon?

"Yes, weapons...... Tomorrow I will take it to blow up the mountain, and if it does, Mrs. should remember a great merit and should be rewarded. ”

"I can help the prime minister, the slave family is already very happy, don't reward it."

"If you have merit, you will be rewarded, and everyone else will be rewarded with silver, but the reward of the lady can only be given to the ...... after returning to Beijing."

Song Qingwan had already understood the meaning of Chen Chao's words, and blushed.

She is already secretly looking forward to what will happen after returning to Beijing, and she will finally be a decent woman.

……

In the early morning of the next day, when the sky was bright, Chen Chao rushed to the nearest mining area with a large group of men and horses, with three made explosives bags.

"Xiangye. Everything is arranged, it's all our people, and not a single fly can fly in. ”

"Hmm."

Here, the miners were temporarily given a day off, and the territory was taken over by officers and soldiers, and they were all Chen Chao's henchmen, which was specially arranged by Chen Chao.

If the gunpowder experiment is successful, this will definitely be a big killer on the battlefield in the future!

Therefore, the Chen Dynasty had to conceal the advent of gunpowder.

If someone asks what is going on today's noise, they will say that the thunder has split the mountain.

Anyway, in this era, the theory of ghosts and gods is still very popular.

Chen Chao observed for a long time before choosing a location.

This is a cliff, the whole cliff section presents a kind of grayish-white, more than dozens of zhang high, a lot of limestone has been mined at the foot of the mountain, usually the miners are at the foot of the mountain, with the most primitive heads, crowbars and baskets, the quarried limestone basket by basket to the cement factory.

Everything was ready, Han Zhong flew on the spot under Chen Chao's signal, his clothes whirled, and when he blinked again, he had already flown to the cliff, and the whole person was like a gecko, crawling on the cliff, and grabbing the stones protruding from the cliff with his left hand.

With his right hand, he pulled out the gentleman's sword that made the people of the rivers and lakes cold, Han Zhong's eyes were cold, and he stabbed into the hard cliff with a sword, and then stabbed again, and so on for more than a dozen rounds, the gravel came out, and Han Zhong punched a hole in the center of the cliff, just enough to put the explosives bag in.

After the first hole was played, Han Zhong's body jumped up, came to the diagonal position above the entrance of the hole, and made another hole in three or five strokes.

A quarter of an hour later, the three openings were arranged in a zigzag pattern, and a bag of explosives was placed in each of the openings, which were connected with a lead to ensure that they could be detonated at the same time.

Chen Chao saw that the time was almost up, so he ordered the soldiers who were close to him to retreat.

The soldiers didn't know why, because the distance of retreat was too far, forty or fifty zhang, but Chen Chao felt that the retreat was not enough, until everyone retreated to two hundred meters away, found a good bunker and hidden, Chen Chao gave the order to detonate Han Zhong on the cliff.

Han Zhong grabbed the lead in his hand and took out the fire fold in his hand, to be honest, he was a little excited in his heart, unlike those soldiers who had no bottom in their hearts, thinking that Xiangye was talking big, how powerful can a small cloth bag be? ! Can you still blow up the mountain?

Han Zhong has seen the changes in Xiangye these months.

If you are not sure, Xiangye will not do it.

With his thumb open the lid of the fire fold, he blew it with his mouth, and the bright spark soon appeared, Han Zhong swallowed a mouthful of saliva and lit the fuse.

The lead burned at a breakneck speed, splitting into three different directions, and quickly struck at the explosive bag in the hole.

The moment Han Zhong lit the fuse, he stepped on his feet, and the whole person shot away like a meteor cannonball.

The cold spring is steep, full of cold, Han Zhong listened to the sizzling sound of the fuse burning behind him, how fast he ran.

This is also what Chen Chao requested!

When he came to Chen Chao, the lead was less than half burned. Chen Chao hid behind a large rock, and several soldiers around him held shields in their hands to prevent the rubble from splashing for a while.

Chen Chao saw Han Zhong coming, and took the initiative to give up a position to Han Zhong, "Han Lao Fangcai's swords are very greedy...... And this body speed, the world can't match......"

On the way to martial arts, Chen Chao didn't care on the surface, but he was very anxious in his heart.

Who wouldn't want to be a true martial arts master? Fly the eaves and walk the wall, and fight the invincible opponents all over the world?!

Now that Chen Chao is practicing the "Five Poisons Heart Sutra", his internal strength is growing slowly, and the effect is not obvious at all, but his ability to recognize poison has increased a lot.

Looking at Han Lao's skills today, he is hungry and almost flowing down.

"Xiangye has a good reputation, and over time, Xiangye will definitely be able to surpass the old slave ......"

"What you said makes you self-conscious......

"......"

Just when Han Zhong wanted to pat Chen Chao's ass, an earth-shattering noise suddenly came.

Rumble!

Since the distance was not too far, only more than two hundred meters, the sound of the explosion and the shock wave arrived almost at the same time, and everyone felt their ears and heads buzzing, as if someone had struck hard with a hammer.

Three explosive packets exploded at the same time, and the entire cliff burst open from inside, and countless rubbles and falling rocks shot outward in a fan-shape, falling one after another.

Some small stones, which were light in weight, burst into the crowd, and they were simply protected in advance, causing no casualties.

Half a quarter of an hour later, everyone recovered from the aftermath of the explosion, among which Chen Chao and Han Zhong were the least affected, one was to cover his ears early, in a strange posture - legs curled up, kneeling on the ground, hands covering their heads, chest still some distance from the ground.

This pose is much like kowtowing to someone, but minimizes the damage.

Chen Chao had no other symptoms except for some tinnitus.

Han Zhong is because of his deep internal strength, so he doesn't have much to do. The others were miserable, although Chen Chao had taught them the posture to prevent impact beforehand, but they didn't take it seriously.

Some people were almost stunned, and some people couldn't hear the sound at all, and shook their heads, only to feel dizzy.