Chapter 219: Getting ready to make a big profit
When Zhou Sisi saw the soldiers carrying out the mined saltpeter, she recognized at a glance that it was indeed saltpeter, and its purity was very good, enough for making explosives.
Saltpeter, also known as flame saltpeter and potassium saltpeter, is chemically composed of potassium nitrate. It appears as white or gray crystals with a glassy luster.
Saltpeter is a good thing. It can be used as medicine to treat diseases, made into gunpowder, and can also be used to make ice. You know, not many people can use it to make ice in summer.
"Dad, come here!" Zhou Sisi waved to Qiao Wenyuan who was squatting on the side fiddling with saltpeter blocks.
"What's the matter? Have you found something good again?" When Qiao Wenyuan saw Zhou Sisi's mysterious look, he thought she had found something good, and immediately ran over happily.
"Dad, come closer!"
Qiao Wenyuan immediately leaned over, and then Zhou Sisi told him that saltpeter could be used to make ice.
"Can you really do it?" Qiao Wenyuan asked in shock, then carefully looked around, fearing that his voice was too loud and would alarm other people.
"Yes! Sure!" Zhou Sisi nodded affirmatively.
"Haha, I knew that my little girl is the most capable. Let's study it carefully when we get back!" Qiao Wenyuan patted Zhou Sisi's shoulder excitedly.
You have to know that every household has a share of ice in the summer, especially when it is hot, it is really hard to get ice, and you can't buy it even if you have money.
Moreover, ice and charcoal are now under the jurisdiction of the imperial court and cannot be sold by individuals. If the little girl can successfully make ice, and the coal she had before, she can become not only a county princess, but also a princess with merits, which is more real than some princesses who only have the empty title.
"Sister Sisi, I have done everything according to your instructions and am just waiting for you to start!" Bai Wanyue walked over with a small shovel.
You have to know that there are cannons on Phantom Island, and Bai Wanyue is no stranger to gunpowder. When Zhou Sisi told her about the other raw materials for making explosives and asked her to prepare them and then put them in containers according to the proportions, this sister immediately patted her chest and promised to complete the task.
Zhou Sisi quickly flipped through the books on weapons that she had read at the base before. The composition of gunpowder is 75% potassium nitrate, 10% sulfur, and 15% charcoal. Zhou Sisi took out a small scale from her bag. She got it from the pharmacy. She would just use it for the occasion.
Soon, others saw that Zhou Sisi had a palm-sized bamboo tube in her hand, and also a round object that looked like an oil-paper bag.
"Is that it?" Song Hancheng walked over and asked with uncertainty in his tone.
"Well, let's try it out first. If you want more powerful firepower, you'll need to ask a blacksmith for help. Try this simple version of mine first!"
"Everyone stand back a little, let me try this first. Sister Bai, give me the fire starter." Zhou Sisi said with a smile as she shook the bamboo tube in her hand that was as big as two palms.
Bai Wanyue immediately took out a fire starter from her body, blew it up and handed it to Zhou Sisi, then reached out and pulled Song Lingyun back.
Zhou Sisi first put the round oil paper bag on the ground, stood up and lit the fuse behind the bamboo tube. She had rubbed kerosene on the fuse, so it burned very quickly.
"Go!" Zhou Sisi threw the bamboo tube in her hand out in a beautiful parabola.
Then the others heard a loud bang and the bamboo tube exploded in mid-air. The sound was deafening and loud.
"It's done! Oh my God! We Dayu will also have explosives!" Shang Wei exclaimed excitedly.
"If the full score is 10, I can only give it 2 points. The power can be strengthened. I'm going to try this. Protect your heads. I put a lot of gravel in it."
Zhou Sisi then lit the big round oil paper bag, threw it out with force, and then quickly hid behind the rocks.
When several people saw her like this, they all hid away and protected their heads.
Then there was a loud bang, followed by the sound of gravel clanging on the rocks.
"Ouch, my head!" Song Hancheng covered his head which was hit. Although it was a bit painful, he saw the ingenuity of the explosives and still looked excited.
He was originally hiding behind a rock, but because he was so curious, he stuck his head out to take a look and was hit on the forehead by the gravel.
"For now, I can only make these two. You have seen their power. If I add iron beads or poison, the power will be even greater."
"It can also be made into a cannon to attack the enemy from a distance, similar to a trebuchet. It can also be made into a pack of explosives and fired at them. I need to think about how to do it when I get back. These are the tools I have right now."
"Old Prince, is your head okay?" Zhou Sisi clapped her hands and asked with concern.
"I'm fine, haha! Girl, you're so amazing. If you can do all of what you said, you'll be the savior of our Dayu!"
Song Hancheng excitedly pressed Zhou Sisi's shoulders, his tone filled with urgency and excitement, and shook Zhou Sisi back and forth with such force that he almost broke her apart.
"Hey, hey, hey, you old man, let my little girl go. What are you doing?" Qiao Wenyuan quickly rescued Zhou Sisi and glared at Song Hancheng with dissatisfaction.
"Sorry, girl. I'm just too excited!" Song Hancheng looked at Zhou Sisi awkwardly as she grinned and shrugged her shoulders.
"It's okay, haha, you have really strong hands!" Zhou Sisi felt that her shoulders must be bruised. It was rare for an old man to be so strong at such an old age.
"Sister Yun, can I take some saltpeter back for research? If there's nothing for me to do here, I'll take my dad back first!"
"Well, of course, you can take as much as you want."
"I will write a letter back to tell my father about the explosives today. You just wait patiently for the reward!" Song Lingyun said with a smile. You can't let people work in vain without giving them any benefits!
"Okay, my dad is here these days, so I'll ask him to record down the things I've researched, and we'll act accordingly when the time comes!" Zhou Sisi winked at Song Lingyun and said with a smile.
"I understand. I will never let you work in vain!" Song Lingyun also smiled. This is the tacit understanding between friends. If you can get something for nothing, you should take advantage of it. She will definitely get the greatest benefit for Zhou Sisi. After all, Zhou Sisi is not an outsider. It is better to give it to her than to let others get it.
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