"ah!"

His eyes were shaking by the fire that suddenly exploded, and a scream like a pig was heard in his ear. Obviously, the scream came to He Zhang, the idiot.

What is this called?

This is called playing with fire! Your uncle!

Although the gunpowder is placed in a bowl and is not sealed, it is still a bowl of gunpowder. Suddenly, the explosion caused by this amount of gunpowder is close to it and its power cannot be underestimated.

It was like a large ball of fire burst out, two or three meters of high-calorie firelight mixed with thick smoke soared into the sky like mushroom clouds. In short, Li Yang was two meters away, but he felt that his eyes were blinded by the violent flames and could not see them. (ps: Friends who have played with fireworks and seldom seen.)

Li Yang was really speechless by He Zhang. He had said before that the danger of gunpowder was so stupid. Now, judging from the screams like a pig, this bitch must have been injured.

Fortunately, the location where Li Yang stood was two meters away from gunpowder, but it was not burned by the explosion of fire.

Li Yang's face was pale and waited tremblingly for several seconds. His eyes, which were shining by the fire, gradually adapted to it. Then he quickly looked at the position where He Zhang stood, and his mouth was opened into an "o" shape...

I saw a smoky black guy standing there. The whites on his black-painted face looked very eye-catching, and his hair turned into a hair-exploding hairstyle, with a trace of smoke rising from it. He was holding a branch in his hand and still maintaining a fire-attracting position...

Who else can this idiot be besides He Zhang!

Obviously, this guy was also scared, standing there, trembling...

Li Yang, who was shocked, rolled his throat for a moment, and then said, "That, He Zhang... Are you okay?"

“Woo…”

He Zhang burst into tears: "Sir, I... I'm blind... I can't see anything..."

Li Yang looked at the poor guy and found that his eyes looked normal, so he comforted him: "Don't panic first, close your eyes, it will probably be fine after a while."

He Zhang nodded, closed his eyes quickly, and after about a minute, he opened his eyes again, and then suddenly a corner of his mouth grinned, revealing a row of snow-white teeth, and said happily: "I can see it, sir, I can see it, haha!"

Seeing his joyful appearance, Li Yang was so upset by him.

Fortunately, he used the branches to ignite the bowl of gunpowder. If he put his body close to ignite it, it would be strange if his eyes could be kept.

However, a high-risk thing like gunpowder can make He Zhang feel its danger personally, and it should be of great help to the awareness of prevention of gunpowder in the future.

As the saying goes, the ignorant is fearless. Only when you realize its danger and have a sense of awe and fear can you improve the prevention psychology.

Sure enough, He Zhang became afraid of gunpowder and nodded in fear: "This gunpowder is so scary, I almost got scared to death."

Li Yang rolled his eyes: "Fortunately this time is just a small bowl of gunpowder. If the amount of gunpowder is large, we should not be able to live."

He Zhang nodded and couldn't help but become solemn: "Sir, it seems that this thing cannot be stored too much at a time, otherwise if you are not careful, all the people in the house will be burned to death."

Hearing this, Li Yang was still very satisfied and said, "So we need to improve our safety awareness. Fire is prohibited in places where gunpowder is produced, otherwise the consequences will be absolutely terrifying."

Next, Li Yang put forward several requirements for producing gunpowder and storing gunpowder.

Workshops that produce gunpowder must be kept away from the crowd and moved to the suburbs alone.

The workshops that produce gunpowder must be small single-family rooms and cannot be collectively produced in a large workshop.

Fire is prohibited in places where gunpowder is stored and made.

The most important thing is that all gunpowder practitioners must undergo safety education, improve safety awareness and prevent risks before they can take up their posts.

He Zhang wrote down the several requests that Li Yang put forward, and then asked: "Sir, gunpowder has been invented now, how to make firecrackers?"

"The making of firecrackers is actually very easy!"

Li Yang next explained the method of making firecrackers...

In fact, firecrackers are made of hard paper into a barrel shell, filled with raw materials and ignited with fuses (a roll of paper soaked in 30% potassium nitrate solution), which is firecrackers. Connecting several small firecrackers with fuses is firecrackers, which is the predecessor of modern bombs.

Of course, on the basis of black gunpowder, sucrose can be added as a gas generator to increase loudness.

Fireworks are added with colored fireworks on the basis of firecrackers, which requires adding an appropriate amount of metal salt to adjust the color, such as strontium salt is red, barium salt is green, sodium salt is yellow, and potassium salt is purple. The principle is flame color reaction. These substances can all be extracted from minerals.

After all, the basis of chemical elements originally originated from various common raw materials.

However, after all, the production of firecrackers and fireworks is dangerous, so it is impossible to just explain the production methods and techniques like papermaking and printing, and let the Jiangzuofu explore and try it out. Therefore, Li Yang basically took the initiative in person and directed the Jiangzuofu to make a small batch of firecrackers and fireworks.

While making the production, I did not forget to explain the principles and safety risks to them.

In just three days, with the help of Jiang Zuo Mansion, Li Yang completed 100 firecrackers, 500 firecrackers, 100 firecrackers, 100 firecrackers, 50 firecrackers, and 50 firecrackers, and 2.

Of course, after Li Yang's on-site guidance, demonstration and explanation, He Zhang and some participants in the Kangfu already knew how to make firecrackers and fireworks. It is obviously only a matter of time before large-scale production is done.

However, it is impossible to let most people in Xianyang use firecrackers and fireworks during the Chinese New Year, because New Year's Eve is already coming.

Li Yang gave all the five hundred firecrackers to those craftsmen who participated in the production of firecrackers in the palace. One thousand firecrackers were handed over to He Zhang and asked him to distribute them to Li Si, Cao Shen, Zhang Cang and others. He Zhang himself gave two 10,000 firecrackers, which was just enough to hang them on the New Year's Eve New Year's Eve dinner and hang them on the first day of the Spring Festival. Of course, Li Yang did not give them the only two fifty fireworks, because he planned to set them on the square outside the Xianyang Palace to set them off, so that the people in Xianyang City could witness the brilliant fireworks together.

…………

On New Year's Eve, every household had already hung up the peach talisman, and a pair of red Spring Festival couplets were pasted on the gate of Zhenguojun Mansion.

This Spring Festival couplet was written by Li Si. Since the invention of paper, Qin State has already developed calligraphy.

It can be said that if this Spring Festival couplet is left until the 21st century, it will definitely be able to exchange for a large villa in a first-tier city.

Once the red Spring Festival couplets were posted, countless pedestrians stopped and watched, talking a lot.

You know, this is a novel thing.

Some people can't help but ask: "Why is this copybook posted at the gate?"

Uncle Wu would roll his eyes like a fool, thinking to himself that these ignorant humans would be, and then he would say proudly: "I have heard it all, my king of town said, this thing is called Spring Festival couplets, which can ward off evil and disasters, welcome good fortune. Seeing the words above, "New Year's greetings, and the festival is Changchun" is a great saying. My king of town will have Yuqing next year."

When everyone heard this, they all applauded. Then they started to buy red paper, wrote auspicious language, and pasted it on both sides of the door frame.

Maybe, this is how people are. If an ordinary citizen does this, no one may follow the trend, but the Zhenguojun said this, it must be that way, so many followers.

In just one day, the entire Xianyang City had Spring Festival couplets posted on the doors of more than half of the people.

In the evening, Zhenguojun Mansion had a sumptuous New Year's Eve dinner early.

At this time, someone else was already beating drums to drive away evil spirits, and Li Yang moved 10,000 firecrackers to the door of the mansion, then drove the pedestrians watching the fun a few meters away, and then spread the long firecrackers on the ground and arranged them into a long dragon.

The lead line suddenly crackled and it didn't stop...

The 10,000-sounding firecrackers, and the production process of this kind of firecrackers are almost the same as those of later generations, so the sound is very loud.

The sound of firecrackers was deafening, and they immediately covered all the sounds of gongs and drums around them.

The fire suddenly appeared, the smoke was shining, the fragrance was swaying, and the thick red paper wrapped in firecrackers exploded to the ground, as if a festive red carpet was laid at the door of Zhenguojun Mansion...

Ten thousand sounds of red earth attracted countless people.

After the ten thousand sounds of red earth was set off, Wu Bo said proudly and proudly: "This is called firecrackers, which sounds ten thousand times. It is not comparable to ringing a gong. When igniting such firecrackers during the Chinese New Year, you will never dare to approach the house for a year. It has a mellow fragrance, a thunderous sound, and a red floor. It is really a must-have item for the New Year and weddings and events!"

At this moment, everyone was extremely attractive to the good thing like firecrackers, but unfortunately, this kind of thing is simply not available at the moment.

Of course, at the same time, a 10,000-sounding earth red ignited in He Zhang's mansion.

This made He Zhang very proud.

If you see it, what is this called? This is called the sound of thousands of thunders! This is called the red earth!

Li Si, Cao Shen, Meng Tian and other state-owned ministers and the few ministers in the court also set off firecrackers. However, the firecrackers in their house were only 1,000, and they rang out in an instant.

Although the whole family was extremely excited, I was still envious when I heard the sound of firecrackers coming from Zhenguojun Mansion and He Zhang Mansion.

And those families without firecrackers were even more disappointed.

Their children in the family asked them why there were no firecrackers in our family?

The parents had to coax: "Our family will buy it and set it off next year, and set off very long firecrackers."

The child was extremely happy and clapped his hands and smiled, "Okay, okay! Firecrackers will be set off next year!"

Of course, then parents will say: "Eat quickly, after eating, you will see good fireworks."

Yes, the notice of setting off fireworks in the square at the gate of Xianyang Palace has been posted throughout the city. On New Year's Eve, fireworks will be lit to celebrate the Spring Festival. At that time, the First Emperor and the princes and ministers will watch it together, and the whole world will celebrate together.

Of course, although everyone doesn't know what fireworks are, rumors about fireworks spread throughout the city, saying that the thing would fly to the sky and then bloom in the sky with extremely beautiful and brilliant flowers, extremely gorgeous.

In short, this incident attracted countless people in Xianyang City.
Chapter completed!