Crossing the Unknown Country

Chapter 230 Su He Makes Luminous Powder

They started to go home with the baskets on their backs, and when they came back, Jiang Jinsong carried Su He on his back. They returned to the village along the same route, and it was a little faster when they came back because they knew the way and didn't need to look around.

Su He started to do experiments in his own yard. There was an underground fire at home, which they dug when they burned limestone. They still kept it there because they sometimes wanted to burn some charcoal.

Su He uses his own small stone mill to grind the Guanyin soil and limestone into powder in proportion and mix them evenly. Then he starts burning them with charcoal and boils them with water. Boil the water at 100 degrees and steam them directly in a pot.

Su He led them to constantly adjust the formula, and after several days of debugging, the final ratio was finally successful. Put the luminous powder under the sunlight, take it into the house at night, and the light blue light will light up. It is not particularly bright, but there is no problem moving freely in the house.

Su He's parents and Feng Dayuan were all very surprised. This luminous powder is great. It can save a lot of money. Oil lamps and candles are very expensive. Otherwise, why do most people gather around the brazier to keep warm and light up at the same time? When it's hot, they rely on the moon. It's good to have a little light. In order to save electricity at night, they all go to bed early.

Glass had not yet been seen in this era, perhaps Su He had not seen it yet. Every household used white paper or oil paper to cover the windows, which could block wind and let light in, but it was still not too bright and could not compare with glass.

Su He distributed some luminous powder to each room, which could light up a little. She gave each room a piece of paper and spread the luminous powder on the table, which at least gave some light. She planned to make more tomorrow and hang them on the roof with something, which should be able to be used as a lamp. It can also be placed on a lampstand and used as a table lamp. If she could find a glass pot or a crystal pot to put the luminous powder in, it could be used as a light bulb.

Su He decided to try to make glass. In order to make a lamp, she had to give it a try. She waited until the powder was almost done, and then started to make glass. After the glass was done, she could also make long-lasting luminous powder. Because they needed to find real porcelain clay to make long-lasting luminous powder.

A few days later, Su He and Feng Dayuan and the other four started to make the soil they brought back. Feng Dayuan and his team went back to carry some more and finally made a large jar of luminous powder. Feng Dayuan asked Su He's father to let them transport some to the border town, so that the general would find it very useful.

Su He's father then realized that they were doing business with General Wang An, so why would they be unwilling? As long as the general was useful, they had no objection. Since Su He made this thing, he would not hide it from others. He would give some to the villagers later, but that was a matter for the future.

Feng Dayuan and Jiang Jinsong drove the mule cart with two mules carrying luminous powder to Fenggou City. When they arrived at the general's mansion, they handed the mule cart to the servants to feed grass, and each of them carried a basket with a bag of luminous powder on his back to see the general.

When he saw Wang Xiaohu in the general's mansion, he asked curiously, "Why are you back? What happened?"

Feng Dayuan smiled and said, "You sent us to the Su family, that is a treasure land, good food, and good things. Let's go, let's go see the general, there are good things to show you."

Wang Xiaohu was overjoyed and said with a smile: "What good things have you found again? Let's go and see the general."

They came together to the outside of the general's study and went into the house after being informed.

Wang Xiaohu reported to the general that Feng Dayuan had brought good things. Feng Dayuan and his companions put down their backpacks, took out the bags, and took out a small bag of powder from the side. They asked the general for a plate and poured the small bag of powder into it.

He told the general: "General, you need to find a dark room to know its wonderful uses."

General Wang An said, "There is a dark room next to it. Let's go there."

At that time, wealthy families had many secret rooms. In order to avoid danger, there were secret rooms not only in the house but also in the yard. They came to a side room, pushed open the bookshelf, and saw a small door to a secret room.

The room was not big and it was too crowded for four people to go in. Wang Xiaohu said with a smile: "General, follow Brother Xiaohu in and you will know what is going on."