Just when Ya'an was thinking a lot, firecrackers shot into the sky with a roar.
Everyone in the busy Shen Gongfang in the courtyard was startled and hurriedly looked for help.
Then, high in the sky above Shen Gongfang, beneath the light blue barrier, light green flames bloomed, like a huge green flower in full bloom.
The scene was really like a fairyland.
Everyone was immersed in this beautiful scene, but this grand scene came and went quickly, like a flash in the pan.
"How?" Qin Feng turned around and asked with a smile, but no one answered.
It was obvious that everyone had not recovered from the scene just now.
The first ones to speak out were Huo Yuan and Gong Liang. They hurried to the front and said, "Master Qin, were those fireworks and firecrackers you asked us to make earlier?"
"good."
"It's strange. After this thing was completed, we also tested it in the refining room, and we didn't see anything like this." Huo Yuan scratched his head and said.
Gong Liang also said: "The explosion power of that thing is too small, so we all treated it as a defective product, but we didn't expect it to have such an effect.
But, Master Qin, why is the color of the flame green?"
Qin Feng replied: "Do you still remember the tiny metal I asked you to add in it?
Different metals will show different colors under high temperatures. I call this phenomenon the flame reaction, and the colors you see come from this."
"Flame reaction?" Huo Yuan's eyes showed excitement.
"I have benefited a lot, I have benefited a lot." Gong Liang took out a notebook from somewhere, which was full of notes.
Qin Feng glanced at it briefly, and found that the contents recorded in it were all things he had talked about in class.
If I had been so serious about attending classes and taking notes in my previous life, I wouldn't have failed the 985 exam. Qin Feng had a weird look on his face.
He did not continue to pay attention to these two people, but turned sideways to the young man in white who bowed his head in deep thought and asked, "How about this? It should be more than enough to present this as a gift, right?"
Ya'an came back to his senses: "Click a few more and let me see."
Qin Feng immediately refused: "This thing is a scarce commodity. If you order it now, what will you give to Emperor Ming then?"
Ya'an thought about it carefully and it made sense, so she planned to ask Wang Xu to put away the fireworks and firecrackers. She also thought that later, as a princess, she could ask Shengongfang to seize some gunpowder from other places and make more fireworks and firecrackers.
But at this moment, Liu Jianli, dressed in white, suddenly said, "I want to take another look."
Without saying a word, Qin Feng immediately took out a few more firecrackers from the wooden box.
Ya'an opened his mouth, his expression a little dull.
This differential treatment is too obvious.
Looking at the two people holding hands under the gorgeous fireworks, with happy smiles on their faces.
Ya'an, alone, looked like a defeated dog.
After burning a stick of incense, Qin Feng said helplessly: "I just ordered a few more for you. You need this look. At worst, I will find a way to get Mr. Yuan to make more for you."
Ya'an ignored it, just glanced at the wooden box with only a dozen firecrackers left, and sneered: "After the advent of gunpowder, the demand for gunpowder from the court, the army, and the Demon Slayer Division increased day by day.
Moreover, saltpeter ore is already scarce, and with limited raw materials, even if you can dig out some to make fireworks, it will be extremely limited."
Qin Feng's face froze, what he said was true, after all, the old man said the same thing just now.
He thought for a moment, suddenly a plan came to his mind, and he took out something from his arms, which was the illusion box he had previously obtained from the Shen Gongfang people.
"What is this?" Ya'an asked puzzled.
"This thing is called the Transformation Box, and its specific function is"
After some explanation, Qin Feng said: "Just think that I borrowed this thing from you. On the night of the celebration, you can use the magic box to reflect the scene presented by the fireworks.
In this way, the shortage of fireworks and firecrackers can be solved
The problem."
"That's all it can do."
After Qin Feng and others left Shen Gongfang, Ya'an left and returned.
Huo Yuan in the courtyard asked curiously: "Why are you back again?"
"I left some things in the attic." Ya'an said calmly.
"Old man's attic is not accessible to ordinary people at will. Tell me what you left behind and I will fetch it for you." Huo Yuan raised his eyebrows.
Apart from his own family members, the only one who can enter the attic at will is Master Qin.
It would be fine if the other party entered with Master Qin, but coming alone is obviously not qualified.
But just as Huo Yuan was thinking this, the old man's voice came from the attic: "Let him come in."
Huo Yuan was a little surprised, but since the old man had already spoken, he naturally didn't ask any more questions and made way to the attic.
Ya'an came to the floor where the old man was and said directly: "There are still five days until the New Year's Eve ceremony. How many fireworks can we make?"
Yuan Zhai looked at the drawings in his hands and asked, "Are you asking this as the head of Jubaozhai, or as the princess?"
Yes, the old man knows Ya'an's true identity. After all, the treasure on Ya'an that can cover his aura and change his appearance was made by the old man!
Ya'an sighed: "Master Yuan, why should I ask questions knowingly? If I were the head of Jubaozhai, I wouldn't even be able to enter your attic, right?"
Yuan Zhai put down the drawings and looked up: "If you can get the approval of Emperor Ming and withhold some of the gunpowder from the court, the Shenge Workshop can make nearly a hundred more fireworks for the princess."
After hearing this, Ya'an agreed after thinking for a while.
Compared to her useless brother, she, as a princess, was more favored by her father. She just wanted to get some gunpowder, which was not difficult for her.
After the matter was finalized, Ya'an was about to leave, but suddenly thought of something, and asked: "Why are you so respectful to that guy? Is it because the immortal is drunk with gunpowder?"
When I came here last time, I happened to see him giving a lecture to you. What on earth was he teaching you?"
Yuan Zhai did not answer, but casually threw out the physics book he had recorded previously.
Ya'an took the book with a curious look on his face, and then started to read it.
Then she became immersed in the fantastic knowledge in the book and couldn't extricate herself.
"You studied in the hands of Master Tianjian of Haowen Academy, and you should know how unimaginable this knowledge is.
This is like a treasure to us craftsmen."
Ya'an was silent. After a long time, he asked again: "Did he tell all the contents in this book?"
"According to that boy, there is a teacher behind him, but we don't know whether it is true or not." Yuan Zhai answered truthfully.
"Aren't you curious? The person who can write this book is by no means an ordinary person." Ya'an sounded a little excited.
"So what, it doesn't matter where the knowledge comes from, as long as we can learn it, that's enough."
Ya'an was at a loss for words. There was nothing wrong with what she said, but she just wanted to find out where Qin Feng studied.
After all, the various whimsical thoughts in that guy's mind always made her full of curiosity.
"I can take this book back and read it."
Before she finished speaking, the physics book had disappeared from her hands.
Yuan Zhai said: "I have already kept the fireworks in mind and will not send them away."