I am a child of Daqin Xiong, who supervises the country at the age of eight

Chapter 73 Saltpeter Ice Making
for an ancient man.

Of course he wouldn't know how to make ice cubes.

After all, all of this involves the knowledge blind spots of the ancients.

It is even said that many modern people do not know how to make ice cubes.

the reason is simple.

Later generations have refrigerators.

Who's so meow, it's okay to care about this?

Therefore, many people in later generations did not know how to make ice cubes.

However, Ying Changsheng knew how to make ice.

After all, compared to other things that require knowledge of chemical physics.

Making ice is quite simple.

It's simply a fool's errand.

I only heard Ying Changsheng say.

"Order someone to bring two copper basins, and bring some saltpeter along the way, so I can successfully make ice cubes!"

"Is this so simple?"

Brother Zheng asked in disbelief while eating roasted sweet potatoes.

After all, no matter how much he thought, he would never figure out that this saltpeter and copper basin could actually make ice cubes.

"Of course, if you don't believe me, try it, won't it be clear?"

Win Changsheng believes in himself.

On the side, Brother Zheng heard this and waved his hand, giving orders to the eunuchs beside him.

"According to Changsheng's instructions, go and get what you need!"

"promise!"

The eunuchs didn't dare to neglect, and hurriedly went to prepare.

Not long after, the things Ying Changsheng needed were brought over. There were several copper basins, and Ying Changsheng was inside. He picked out two copper basins, one big and one small, and he ordered.

"Go get some water!"

"promise!"

The eunuch next to him quickly went to the well not far away, and then brought over two buckets of water. Immediately, Ying Changsheng poured a basin of water into the large copper basin, and then poured the small copper basin into it. Put it into the big copper basin, and then add water to the small copper basin.

Immediately, he took out a few pieces of saltpeter from the bag of saltpeter that the eunuchs had hurriedly brought to the side, and threw it into the large copper basin.

Saltpeter is still mined in Da Qin.

This thing is also very simple in the current Daqin, it is nothing more than used as a medicinal material.

No one knows that this thing can also make ice cubes.

I only saw Ying Changsheng, throwing a piece of saltpeter into the copper basin from time to time. At a speed visible to the naked eye, I saw that the water in the large copper basin began to emit traces of white gas, and the surface of the copper basin also began to Because of the low temperature, water droplets condense out.

It was Brother Zheng who was looking at him, his face full of surprise.

With a look of curiosity on his face, it was obvious that Brother Zheng didn't know much about the principle of this.

At the same time, Ying Changsheng continued to add saltpeter, and within a short period of time, the water in the large copper basin seemed to have formed ice, and copper has a good thermal conductivity. ,
The water in the small copper basin also began to freeze slowly, seeing brother Zheng's expression of incredulity.

"This, this thing can really be used to make ice cubes!"

"That's right, when saltpeter meets water, it will produce ice, if so, it will be made into ice!"

Ying Changsheng nodded, then looked at the ice cubes that had gradually formed in the copper basin, and ordered to the eunuch.

"Go to the melon patch in the distance, pick a big watermelon, and eat it on ice with my father later!"

"Yes, Young Master Nineteen!"

The eunuch said quickly, not daring to be negligent, and immediately brought a large piece of watermelon to Ying Changsheng.

At the same time, Ying Changsheng had already finished making ice. He put the watermelon in the ice cubes and said to Brother Zheng who was next to him while freezing it.

"How about it, father, making ice is quite easy, right?"

"It's quite easy, but it's too much saltpeter..."

Brother Zheng glanced at the ice cubes in the copper basin and couldn't help but muttered.

This ice cube, though, can be used to relieve the heat in summer.

However, his cost is too high.

Using saltpeter to make ice, after all, is too wasteful, a small amount is fine, if there is a lot of ice to be made, how much saltpeter will be enough?

Hearing this, Ying Changsheng shook his head and smiled.

"No waste, no waste at all!"

"Oh?"

Brother Zheng was a little surprised, but Ying Changsheng explained to Yingzheng.

"After the saltpeter is made into ice, it will not be completely wasted. On the contrary, it can be used repeatedly!"

"Oh?"

Zheng Ge was a little surprised, he pointed to the ice cubes in the basin and said.

"This saltpeter has already melted into the ice, how can it be reused?"

"Simple, wait until the ice turns into water, put the copper basin under the sun, and expose it. Then, after all the water evaporates, the saltpeter will reappear at the bottom of the basin. At that time, you can continue to use this thing. Make ice cubes!”

"Can it still be done like this?"

Brother Zheng only felt extremely shocked, but Ying Changsheng laughed.

"Of course. In this case, wouldn't the cost be very low? You only need some saltpeter, and you can continue to use ice cubes to relieve the heat throughout the summer..."

"That's right!"

Brother Zheng sighed with emotion and couldn't help but admire.

"Longevity still has a way. If it were me, I would never have imagined that this saltpeter could be used to make ice cubes!"

"Haha, what's the point!"

Ying Changsheng laughed a few times.

Immediately, he looked at the watermelon in the basin, and felt that it was almost time, so he said to Ying Zheng.

"This watermelon is probably cold enough to eat!"

"This watermelon, what is it?"

Brother Zheng was puzzled.

He hadn't eaten watermelon yet, and Ying Changsheng explained.

"A kind of melon that is particularly delicious. Father tasted it and he knew it. This melon is quite delicious!"

After finishing speaking, Ying Changsheng waved his knife and cut the watermelon on the stone table. After cutting it, he handed a piece to Brother Zheng. After taking a tentative bite, Brother Zheng was immediately overwhelmed by the juicy and sweet taste of the watermelon. The taste was shocked, and I couldn't help but sigh with emotion.

"This watermelon is really delicious!"

With that said, Brother Zheng began to eat the watermelon with big mouthfuls.

One piece for you, one piece for me, not long after, a big watermelon, all of them went into the stomachs of Ying Changsheng and Brother Zheng.

After eating and drinking, Brother Zheng remembered that Ying Changsheng wanted to make wine, and he couldn't help but murmured.

"Since our Daqin will not be short of food in the future, and you can use these worthless sweet potatoes with a high grain yield to make wine, I thought about it and decided that from now on in Daqin, we should not stop drinking!"

"Father is wise!"

Brother Ying Changsheng Chaozheng gave him a flattery.

Brother Zheng waved his hands and shook his head.

"This government order should have been changed according to the time and place, instead of blindly sticking to the rules. The laws of my Great Qin have been changed countless times, and this time is not bad!"

(End of this chapter)