The card draw is not ruthless, and the gate of the house is unstable

When I arrived at the spring, I saw several piles of ore stacked aside.

After approaching, Xie Qingyu took some saltpeter and was about to scoop some water out, but found that there was no tool at all.

"Really!"

Xie Qingyu slapped his forehead, forgetting that the world of kings has no tools.

They don't need to eat anything.

There was no other way, Xie Qingyu had no choice but to go out first and return to her room.

Going to the kitchen to get some pots and bowls, and a ladle.

At the door of the kitchen, Xi Tong happened to be wiping his hands and preparing to leave.

"Miss Seven?"

Xi Tong was surprised.

"aunt."

Xie Qingyu called someone.

"Is Miss Qi coming to the kitchen to do something?"

Xie Qingyu nodded, "I'll get some things."

"Get something, I will find it for you."

"No, Auntie, please rest first, I'll be fine."

After so many years, Xi Tong also understood Xie Qingyu's temperament, seeing her say so, he didn't continue.

After saying goodbye to Xie Qingyu, he left the kitchen.

Xie Tong left, and Xie Qingyu took the things she needed and went back to where she lived.

After sending the things into the king's world, Xie Qingyu also followed.

"Sister Qingyu!"

As soon as he arrived at the square, Xie Qingyu heard Cai Wenji's soft voice.

Then I saw two short legs running towards her.

After Cai Wenji stood still in front of Xie Qingyu, she raised her head and said, "Sister Qingyu, why did you go out just now?"

Xie Qingyu rubbed Cai Wenji's head, "I need water to make ice, my sister is going to get tools to fill the water."

"Oh." Cai Wenji nodded obediently, "I brought little Luban!"

"Yeah." Xie Qingyu stood up, and said to Cai Wenji and Xiao Luban, "Can you two help my sister take these things to the spring?"

The two looked at what Xie Qingyu was pointing at and nodded.

After giving the water ladle and the small wooden bowl to the two of them, the three went to the spring.

Come to the saltpeter.

After putting down the tools, Xie Qingyu fetched some water from the wooden basin.

The two children Cai Wenji and Xiao Luban stood by and watched Xie Qingyu operate.

After putting the water on the ground, Xie Qingyu took another bowl and scooped some water out of the basin.

Tentatively put the saltpeter in the bowl.

Because he didn't know the proper ratio of water and saltpeter, Xie Qingyu took several bowls.

Prepare to use the same amount of water and put different amounts of saltpeter.

One by one, try to find out in what proportion, the saltpeter will freeze.

After putting down the saltpeter in several bowls, Xie Qingyu squatted aside and waited.

The two little radish heads followed suit and squatted down next to Xie Qingyu.

After about a quarter of an hour, Cai Wenji couldn't wait any longer.

"Sister Qingyu, can this really make ice?"

Xie Qingyu was also a little uncertain.

It was also her first attempt to make ice with saltpeter.

Looking at the unresponsive saltpeter water, Xie Qingyu questioned.

Did it fail?

Or is there not enough time?
"Wait a minute!"

Xie Qingyu said so.

Not only to reply Cai Wenji, but also to cheer myself up.

After speaking, I tested the temperature in the bowl with my hands, and then tried the rest in the basin.

I don't know if it's an illusion, but the water in the bowl seems to be cooler.

After waiting patiently for a while, I finally saw traces of ice in one of the bowls.

Xie Qingyu raised his head and called the two little ones who had already gone to play next to him to come and have a look.

"Wow! There is really ice!"

Cai Wenji sighed.

Xie Qingyu and Cai Wenji were observing the bowl that was the first to freeze when they heard little Luban excited.

"Look, this one's frozen too!"

The two of them leaned over and saw that it was frozen.

"What about this?"

Seeing that the other bowl was also frozen, Cai Wenji hurried to the other bowl.

No sign of freezing...

In the end, there were only two bowls that could freeze.

One is that the ratio of saltpeter to water is 1:2, and the other is 1:3.

The ice of 1:2 should be harder, and the ice of 1:3 should be softer.

And 1:1 and 1:4 did not respond.

Part of the 1:1 saltpeter did not melt, but all of the 1:4 saltpetre melted, but the water temperature only became cooler, and did not freeze.

It seems that certain conditions must be met for the formation of ice cubes.

Originally, there were a lot of people thinking about the world of kings, and they were basically top talents in various fields, and they could help find a way when the time came.

Unexpectedly, she made it out by herself.

It's also because it has no technical content.

However, is it possible that it is so easy to make in the world of kings?

She'll have to take it outside and try it out.

In addition, saltpeter is one of the ingredients of gunpowder, and it is not known whether it is poisonous or not.

She had to refill the container with saltpeter water.

"You two are making ice games here, I'll go out first."

Xie Qingyu poured out the water in the wooden basin, filled it with saltpeter, and said goodbye to the excited two children.

"Understood, goodbye, sister Qingyu!"

Xie Qingyu nodded, afraid that the two children would be ignorant, so he put the ice in his mouth directly, and said:
"This ice can't be eaten. If you want to eat it, you can use another container to fill it with water."

"You can't eat this with saltpeter, you know?"

After the two children nodded obediently, Xie Qingyu left here with the wooden basin.

Back in the room, Xie Qingyu immediately went to the yard to fetch some water.

After bringing it to the room, dissolve saltpeter and water in a ratio of 1:2.

Then he took another bowl and filled it with some water, and put it in a wooden basin filled with saltpeter liquid.

After finishing these, Xie Qingyu left the room and came to the yard.

Use the waiting time to practice martial arts for a while.

Guessing that the time was up, Xie Qingyu stopped practicing martial arts.

After fetching some water and washing casually, Xie Qingyu entered the room.

As expected, the ice has become.

In this way, the grasp of tomorrow will be even greater.

The confident Xie Qingyu fell asleep with hope.

I am going to wait in the Qianhe Palace tomorrow morning to settle the marriage.

A good night's sleep.

Because Xie Qingyu is still on vacation, he doesn't have to go to court.

Xie Qingyu ate his breakfast slowly before leaving Qingqiu Hall.

Passing by the imperial garden, Xie Qingyu slowed down to appreciate the scenery when he saw the scenery was just right.

Guessing that the morning was coming to an end, Xie Qingyu quickened his pace.

It is probably because of the dedicated staff who waited on them carefully.

After so many years, she still feels that the palace has the most variety of designs and colors.

It is also the most colorful.

When he arrived at Qianhe Palace, Zhao Yitian hadn't returned yet.

Xie Qingyu didn't sit down either, but stood upright, waiting for Zhao Yitian's arrival.

Therefore, when Zhao Yitian came back, what he saw was Xie Qingyu's tall and straight figure.

Zhao Yitian changed the court clothes first, and then asked Xie Qingyu:
"I heard that Xie Qing came to look for me yesterday, and came to wait for me early today. I don't know what it is?"

"Go back to the emperor," Xie Qingyu took a step forward, "A few days ago, I asked the emperor for some ore to go back, and the result has already been achieved."

"Oh!"

Zhao Yitian showed great interest, "I don't know what strange things Aiqing has researched?"

Xie Qingyu saluted and said, "Return to Your Majesty, it's ice."

"ice?"

Zhao Yitian changed his lazy sitting posture and got up.

Thanks to Baby Youxi and Baby Jiuzi for the recommendation tickets