Otaku Engineer in Great Tang Dynasty

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There are many raw materials for modern fireworks, and the raw materials for fireworks of different colors are also different.

Generally speaking, the raw materials are generally kno3 (potassium nitrate), kclo3 (potassium chlorate), c (carbon powder), s (sulfur powder), sr (no3) 2 (strontium nitrate), and so on.

Some of these raw materials are easy to get, and some are still difficult to get. Li Zexuan can only do his best to get it with the conditions he can achieve now!

For example, potassium salt, it is definitely not realistic for people to find a potassium salt mine now, but you can also get potassium salt from some things around you!

For example, there are grass ash in it! Because plant ash is the ashes after burning plants, it is the mineral element contained in all plants, almost all of which are contained in plant ash. Among them, potassium is the most abundant element, generally containing 6-12% potassium, of which more than 90% is in the form of carbonate; followed by phosphorus, generally containing 1.5-3%; also contains calcium, magnesium, silicon, sulfur and iron , manganese, copper, zinc, boron, molybdenum and other trace elements.

In this way, Li Zexuan exhausted his brain power and used all the raw materials around him, and finally made the first batch of fireworks with various colors!

"Brother! Is this all right? Can this thing really be as beautiful as a flower?"

Seeing Li Zexuan get up, Laner hurriedly came over and said.

This girl has been circling around Li Zexuan since the morning, asking this and that for a while, making Li Zexuan's head quarrel so big! In the end, Li Zexuan told the little girl that if there was more noise, today's fireworks would not be possible, and Laner became quiet.

Seeing that Li Zexuan was about to call it quits at this moment, how could she hold back after holding it for so long? Immediately ran to Li Zexuan's side to find out!

"Hehe! Of course!"

Li Zexuan clapped his hands and said confidently.

Lan'er said excitedly: "Then brother, let's take a look!"

Li Zexuan said angrily: "Laner, it's still daytime, you won't be able to see anything even if you let it go! Let it go at night!"

"Ah? Have to wait until evening?"

Lan'er's bright little face just now turned cloudy and cloudy, and the little girl's face really changed!

"Haha! Don't worry Laner! It will be dark in just over an hour, and it won't be long!"

Han Yuxi came over and laughed softly.

"Alright then! Sister Yuxi, what should we eat at night?"

"Evening..."

Li Zexuan smiled, this little girl is very close to Han Yuxi now, and they are almost in line with each other. Others are of the same sex, but they are attracted to each other!

Shaking his head, Li Zexuan intends to go into the house and go to the hot spring room in the yard to soak in the hot spring and take a break!

It is said that after the hot spring was dug out in his yard, he had people surrounded the hot spring and built a house directly on the hot spring, which was specially used to soak in the hot spring in winter. Time!

It's just that after the hot spring room was built in the backyard, the space was a little stretched. Li Zexuan planned to expand this courtyard after the new year, at least to convert it into a large villa courtyard, so that even if all the family lived in it, It won't look crowded!

"Oh! Laner is such a little light bulb!"

Li Zexuan was soaking in the hot spring pool alone, thinking angrily.

In other words, if this girl wasn't there, wouldn't he and Han Yuxi be taking a bath?

. . . . . . . . . .

Laner outside did not feel the "resentment" from her brother at all. The little girl looked forward to it, and finally it was dark, and tonight's dinner was also eaten half an hour earlier, so it was just as soon as it was eaten. After the meal, Laner pestered Li Zexuan to set off fireworks.

Li Zexuan didn't refuse this time. He directly walked towards the open area in front of the courtyard with a large plate of fireworks with sixty-four sounds.

Li Jingmo, Mrs. Li, and the three members of the Ye family all ate here in the evening, so naturally they also came to watch the fireworks at this time.

"Haha! I missed it when I came back last night, tonight is just right! Let's see what the fireworks you are talking about are like!"

The old lady Ye said with a smile.

Li Jingmo said helplessly: "Xuan'er is a dignified prince of a country, and he is messing around with these useless things at home all day long, and others won't laugh at him when it spreads out?"

Mrs. Li patted Li Jingmo's arm and said angrily, "What's the joke? Xuan'er still wants to live a lively year for us as elders in Yunshan? King Wei and King Han have come to make fireworks in person, they can do it, why can't Xuan'er do it?"

Old Madam Ye smiled and said, "Yuzhu is right, this is a big New Year, Jingmo, don't take it seriously! No matter what outsiders say or say, it's not as good as our family's happy New Year. !"

"Grandma cover her ears, brother wants fireworks!"

Lan'er ignored the quarrel between these adults. She tugged at the old lady Ye's arm and said excitedly.

"Hey~! Good! Grandma will cover her ears~!"

Madam Ye covered her ears and smiled kindly.

Seeing this, the rest of the people also covered their ears.

"呲呲~!"

On the other side, Li Zexuan had already lit the lead of the fireworks with a fire stick, and then quickly ran towards this side, shouting as he ran, "Cover your ears!

Ringing ~! "

The voice just fell, only to hear a slight sonic boom of "bang", a firework with red sparks rushed into the sky, and with a loud "bang", a beautiful flower bloomed in the night sky. The colors of the fireworks are colorful, red, yellow, blue, green, purple, pink, and they look beautiful!

"Wow~! It's so beautiful! Dad, Mom! Grandma! Look at it! The fireworks are so beautiful!"

Lan'er's eyes widened, and she shouted loudly.

Needless to say, Mrs. Ye and Mrs. Li have long looked up to see the fireworks in the sky!

One by one, their eyes widened, facing the most beautiful scene in the world, they even forgot to breathe at this moment, the beauty, the beauty is so "tragic", the beauty is unbearable!

"boom!"

The fire of the first firework has not dissipated, the second firework has already shot into the sky, and there is a loud "bang", and a huge flower blooms proudly, red orange, yellow, green, blue, blue and purple. Everything, colorful, decorate the night sky beautifully and gracefully, and illuminate the earth like day!

"This! Are these fireworks?"

At this moment, Li Jingmo's mouth was so open that he could stuff a duck's egg, and his breathing became rapid.

The words he said that Li Zexuan was not doing his job can no longer be said now, because the beauty and splendor of fireworks are far beyond his cognition. In his opinion, such a grand scene is tantamount to a miracle what!

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