Legendary star: Signed to the Palace at the beginning

Chapter 217 Gunpowder
Sun Simiao said: "It's good to know. Our alchemists often use burning method to 'volt' the poisonous gold and stone medicines such as sulfur and arsenic to lose or reduce the toxicity. This procedure is called 'volting the fire'." One of the most important methods in alchemy is "fire alchemy". Ge Hong in the Jin Dynasty recorded the fire method in the book "Baopuzi". The fire method generally includes: calcining (long-term high-temperature heating), Refining (heating of dry matter), moxibustion (partial baking), melting (melting), pumping (distillation), flying (also called liter, that is, sublimation), and excellent (heating to denature the substance). These methods are the most basic If the method of alchemy is not refined, it is easy to catch fire or explode."

Xiao Chuan said: "Doctor Sun, do you know how to prepare gunpowder?"

Sun Simiao said: "I have been refining alchemy for more than ten years, and I have come up with a method of 'sulfur embedded in the alchemy', which can subdue fire."

After speaking, Sun Simiao took out a booklet from his medicine box, turned to a page, and handed it to Xiao Chuan.

Xiao Chuan took a look and saw that the page read: "'Dan Jing Nei Fu Sulfur Method' records: two liang each of sulfur and saltpeter, grind it into powder, put it in a silver pot or a sand pot, dig a pit, Put the pot in the pit at the same level as the ground, and fill it with soil on all sides. Light three soaps that have not been eaten by moths one by one, then put them in the pot, and set the sulfur and saltpeter on fire. Wait until the fire can no longer be fired, then Use charcoal to fry until one-third of the charcoal has disappeared, then anneal, and before it cools down, add the mixture, and then put it on fire."

Sun Simiao said: "The recipes for volting fire all contain carbon, and adding saltpeter to volting sulfur, and adding sulfur to volting nitrate, so alchemists intentionally make the medicines burn to get rid of their fierce poison."

Xiao Chuan said: "Since Doctor Sun is so proficient in gunpowder, I have a formula for black gunpowder. Please help me research it."

Sun Simiao was very interested in science, and immediately agreed.

Just now Xiao Chuan found out how to make crossbow bolts, cannons, muskets, and gunpowder in the system space warehouse, arranged for researchers, and became a hands-off shopkeeper.

After arranging the business, Xiao Chuan began to think about giving Yu Wenyan a birthday present.

I don’t know if Yang Jian knows Yu Wenyan’s identity. Anyway, East Turkic has a fake daughter princess. A few days ago, he instigated Sabolo Khan to send two thousand Turkic cavalry to go deep into the inland of the Sui Dynasty to rob. It was so similar, Xiao Chuan silently gave Yu Wenxiu a like.

At Xiao Chuan's suggestion, Yu Wenyan changed her name to Wen Yan and put a little makeup on her face. In addition, Yu Wenyan often disguised herself as a man in the past, so now few people recognize her as the princess.

Yu Wenyan is now in charge of the cosmetics company, so she is familiar with many noble ladies in Chang'an City.

Yu Wenyan is the queen of the prince. Since she was a child, she has rich clothes and good food. She has no shortage of beautiful clothes, rouge and gouache, so she has to give some special gifts.

"The best gift for a foodie is to give her delicious food. Why don't I make her a birthday cake?"

Suddenly, Xiao Chuan's eyes lit up, and his heart moved. He found the method of making cream cake from the "system space warehouse".

Xiao Chuan asked a craftsman to make an oven, and then went to the kitchen to find ingredients such as eggs, flour, oil, milk, cream, sugar, etc. After two days of repeated practice, he was finally able to make a decent cake.

Looking at the cake blanks in the oven, a strange smile appeared on the corner of Xiao Chuan's mouth, and he couldn't help thinking in his heart: "Snacks, let's bow down to my brother's delicious food!"

On the third day, surrounded by a group of chattering girls, Yu Wenyan came to Chengji Hot Pot Restaurant in Huangchenggen Food Street, Chang'an City.

Today the hot pot restaurant does not accept foreign customers, and it is specially reserved for Yu Wenyan's birthday.

In the morning, under Xiao Chuan's arrangement and design, the guys have already cleaned the hot pot restaurant to a new look.

Ribbons, garlands, and bonsai are well arranged. There are 99 roses in the center of the hot pot restaurant. The long tables are arranged in a buffet style. Pastry drinks such as Rose Cake, Qiqiao Dim Sum, Blooming Fortune, Pearl Emerald, Plum Blossom Cake, Fragrance Drink, Bijaponica Porridge, Lotus Leaf Soup, etc.

Several eleven or twelve-year-old girls with croissant braids immediately excitedly said when they saw the delicious food: "Sister Yan, there are so many delicious foods, you are so interesting!"

Several beauties in the age of fourteen or fifteen were very envious.

After speaking, he ran to the nearest table, picked up rose cakes and Ruyi cakes, stuffed them into his mouth, and muttered while eating, "It's delicious! Come and eat too."

"There are so many roses, I'm afraid there must be a thousand of them?"

"Yu Wenyan, who gave this to you? It's so hard work!"

"I'm so envious. If someone else gave me so many roses, I'd marry right away."

"Don't worry, everyone, there are more delicious ones to come."

All the girls followed the voice, and it turned out that it was Jin Wang Yang Guang.

Behind Yang Guang, Xiao Chuan pushed a trolley with a smile on his face. On the trolley was a huge three-layer cream cake.

"Wow, what is this?"

"It looks delicious at first glance."

Several little girls couldn't help swallowing and shouting.

Xiao Chuan said: "Wen Yan, I specially made a cream cake for you, I wish you a happy birthday!"

Yu Wenyan, who was usually very straightforward, suddenly turned red and whispered: "Duguchuan, thank you."

"A candle represents one year. Now please put the candle in Wen Yan."

Xiao Chuan took out eighteen small candles like a magic trick, inserted them on the top cake, and put a wreath on Yu Wenyan's little head.

Yu Wenyan didn't know whether she was dazzled by happiness or confused, so she obeyed obediently.

Xiao Chuan said: "Wen Yan's birthday party is about to begin. Let me tell you about the process. First, Wen Yan lights the candles, then closes her eyes and makes a wish. We sing the birthday song together, and then blow out the candles. Finally, Wen Yan cuts the cake."

Yu Wenyan lit the candle with a fire stick, put her hands together on her chest, closed her eyes and began to make a wish.

Xiao Chuan said: "Everyone sing with me: Happy birthday to you, happy birthday to you..."

At first, the girls were a little shy, and they were embarrassed to open their mouths. When they heard Xiao Chuan and Yang Guang's broken voices singing, they stopped being reserved and started singing along.

Yu Wenyan only felt warm in her heart, her nose was sore, her eyes were a little moist, she hurriedly wiped them with her sleeves, and opened her eyes.

Xiao Chuan said: "Okay, let's start blowing out the candles. Wen Yan used so much force that she blew them out in one breath!"

Yu Wenyan blew out the candle, Xiao Chuan took out a knife and said, "Wenyan, it's time to cut the cake."

Under Xiao Chuan's instruction, Yu Wenyan cut the top layer of cake into several small pieces, first gave one piece to Yang Guang, and passed the second piece to Xiao Chuan, saying: "Thank you for your hard work."

Xiao Chuan smiled and said, "You're welcome, are you satisfied with the flowers and cake I gave you?"

Yu Wenyan said: "Satisfied."

Yu Wenyan distributed the cake to the other girls, and the girls gathered in groups of three or four, chatting non-stop while eating pastries and drinking drinks.

While eating the cake, Yang Guang squinted at Yu Wenyan, who was smiling and greeting among the girls, poked Xiao Chuan with his finger, and said, "Cousin, I think sister Wenyan is going to eat you, you should go quickly!" Let's propose marriage at her house."

(End of this chapter)