Otaku Engineer in Great Tang Dynasty

?Modern fireworks have many raw materials, and fireworks of different colors have different raw materials.

Generally speaking, raw materials generally include 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 them with the conditions that can be achieved now!

For example, potash, it is definitely unrealistic for people to find a potash mine, but it is also possible to get potash from some things around!

For example, plant ash is fine! Because plant ash is the ashes after burning plants, plant ash contains almost all the mineral elements contained in plants. Among them, the most content is potassium, which generally contains 6-12% potassium, of which more than 90% is in the form of carbonate; the second is phosphorus, which generally contains 1.5-3%; it 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 and used all the available raw materials around him to finally make the first batch of fireworks with multiple colors!

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

Seeing Li Zexuan getting up, Lan'er hurriedly leaned over and said.

This girl has been circling around Li Zexuan since the morning, asking this for a while, and asking that for a while, making Li Zexuan annoyed! In the end, Li Zexuan told the little girl that if there was any more noise, today's fireworks would not be produced, and Lan'er was quiet now.

Seeing Li Zexuan at this moment is obviously about to stop work, how can she hold it back after holding back for so long? Immediately ran to Li Zexuan to find out!

"Hehe! Of course!"

Li Zexuan clapped his hands and said confidently.

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

Li Zexuan said in a huff: "Lan'er, it's still daytime, and you won't be able to see anything even if it is released! Play it at night!"

"Huh? Wait till night?"

Lan'er had a very bright face just now, and it suddenly turned overcast. The little girl's face really changed when it changed!

"Hehe! Lan'er, don't worry! It will be dark for more than an hour, and it won't be long!"

Han Yuxi walked over and laughed softly.

"Well then! Sister Yu Xi, what good food shall we eat at night?"

"At night..."

Li Zexuan smiled. This little girl is very close to Han Yuxi now, and she is almost obedient. He shook his head and planned to go into the house to go to the hot spring room in the yard to take a break!

It is said that he dug out a hot spring in this yard at the beginning, and later he let people enclose the hot spring, and built a house directly on the hot spring, which is specially used for hot springs in winter. Now he is restricted at home. It is a good time to enjoy it. !

It’s just that after the hot spring room is built in the backyard, the space is a bit stretched. Li Zexuan intends to expand this other courtyard after the beginning of the year. At the very least, it will be transformed into a large villa courtyard, so that even if all the family members live in. Will not appear crowded!

"Oh! Lan'er, this girl is really a small light bulb!"

Li Zexuan was immersed in the hot spring pool alone, thinking inwardly.

By the way, if this girl is not there, aren't he and Han Yuxi taking a mandarin duck bath right now?

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

Li Zexuan did not refuse this time, he directly walked towards the open area in front of the other courtyard holding a large plate of 64-ring fireworks.

Li Jingmo, Mrs. Li, and the three members of the Ye family ate here at night, and naturally followed by to watch the fireworks.

"Haha! I missed the night when I came back last night, and tonight is just right! See what the fireworks you are talking about are like!"

Old lady Ye said with a smile.

Li Jingmo said helplessly: "Xuan'er is a dignified state prince, all day at home fiddle with these useless things, and if they spread out, don't others laugh at him?"

Mrs. Li slapped Li Jingmo's arm, and said angrily: "What's the joke? Isn't Xuan'er trying to spend a lively and lively year as our elders in Yunshan? Why made others laugh? And I heard yesterday. King Wei and King Han came over to make fireworks in person, and they all did it. Why couldn't Xuan'er do it?"

Old lady Ye smiled and rounded up the field and said: "Yu Zhu is right, this is a big Chinese New Year, Jingmo, don't be serious! Outsiders say it or not, it's not as good as a family reunion! "

"Grandma should cover her ears, brother is going to order fireworks!"

Lan'er ignored the quarrel between these adults, she tugged at the arm of the old lady Ye and said excitedly.

"Eh~! Okay! Grandma will cover her ears~!"

Old lady Ye covered her ears and smiled kindly.

Upon seeing this, the others also covered their ears.

"Bah~!"

Li Zexuan on the other side lit the fuse of the fireworks with a fire fold, and then quickly ran towards this side, yelling: "Cover your ears! The fireworks are going to go off~!"

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

"Wow! So beautiful! Father, mother! Grandma! Look! The fireworks are so beautiful!"

Lan'er's eyes widened, and she whispered.

Needless to say, Mrs. Ye and Mrs. Li had already looked up and saw the fireworks in the sky!

They opened their eyes one by one~www.ltnovel.com~ Faced with this most beautiful sight on earth, they even forgot to breathe at this moment, beauty, beauty is so "traumatic", beauty is so beautiful that it can hardly extricate itself!

"boom!"

The light of the first firework has not dissipated yet, and the second firework has soared into the sky with another loud "bang", a huge flower blooming proudly, red orange, yellow, green, blue and purple, everything Complete, colorful, decorate the night sky beautifully and gracefully, shine the earth like day!

"This! This is the fireworks?"

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

He said before that Li Zexuan was not doing his job properly, but now he can't say it anymore, because the beauty of fireworks is far beyond his scope. In his opinion, such a grand scene is tantamount to a miracle. what!

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First!

(End of this chapter)