She married a dying prince and she won three babies.

When everyone heard Yu Yuanzheng shout that there was a treasure, they all rushed over.

Shangguan Ziqi also saw the newly revealed small pit.

It's yellow.

He squatted down, pinched a little and put it under his nose to smell it.

The old prince also pinched a little and put it to his nose.

"Haha, Your Majesty, this is really good stuff. This is sulfur." ​​The old prince also laughed excitedly.

In recent years, Dawei has been committed to bomb research and development and has made many related weapons.

The four cannons they brought on board this time consumed even more gunpowder.

One of the important ingredients of gunpowder is sulfur.

Shangguan Ziqi had already smelled something and moved a few stones away.

It's all yellow underneath.

"Father, this place is full of sulfur ore."

Shangguan Ziqi saw that the ore was all relatively pure sulfur ore, and excitedly ordered his soldiers and guards to move the surrounding stones to take a look.

As a result, each stone was covered with a yellow color like gold.

The emperor also moved a piece aside to take a look.

"Hahaha, good, good, good. This is a treasure mountain." The emperor couldn't stop smiling.

Until now, no mountain of sulfur ore of such pure quality has ever been found in the territory of the Great Wei.

And today, he personally brought people to discover it.

With this treasure mountain, there is no need to worry about the use of sulfur.

In the past, sulfur was only used for medical purposes. After the bomb formula was invented, there was a time when there was a shortage of sulfur, so bombs had to be used sparingly on the battlefield.

Even if all the sulfur in the hands of all drug dealers in the country was requisitioned, it would not be enough.

"Hongyi, we have to protect this mountain. Mining it slowly." The emperor gave the order on the spot.

The mood is wonderful.

"Yes."

Everyone is very happy.

"So that's how it is, so that's how it is." Yu Yuanzheng understood everything this time.

"Madam, what do you mean?" Shangguan Ziqi returned to Yu Yuanzheng and heard her mumbling to herself.

"I know what the acid in this lake is. I also understand why there are so many sulfur ores here."

After seeing so many sulfur stones, Yu Yuanzheng figured out all the problems.

Yu Yuanzheng did not answer Shangguan Ziqi's question immediately, but looked at the entire mountain top and Tianchi again.

"Children, come here, I want to tell you something." Yu Yuanzheng planned to take this opportunity to give the children some scientific knowledge.

Three children came running over.

Everyone was sweating profusely while playing.

When the retired emperor and the old prince heard this, they also gathered around.

Both of them knew that Yu Yuanzheng was a soul from the future and knew a lot.

Curiosity is something that everyone has.

"Do you know how this lake was formed?" Yu Yuanzheng asked.

All three children shook their heads.

Yu Yuanzheng looked at Shangguan Ziqi again.

He shook his head too.

"This island must have been formed many years ago, perhaps thousands or even tens of thousands of years ago, by a volcanic eruption in the ocean.

Look at this lake, it must be the crater of the volcano when it erupted. And this mountain is the tallest on the entire island, which means my guess is correct.

Coincidentally, the geology here is mainly sulfur.

Sulfur will evaporate in nature and deteriorate due to sunlight. Then, when it is exposed to rain, it dissolves with water to form acidic substances, which then flow into the lake.

Over time, the acidic substances in the lake will increase.

If you look further away, it seems that this lake has no large outlet. Unless it rains heavily for several days in a row, the water will rise and flow down the mountain.

If it cannot flow out, it will be dried by the sun, and the acidic substances will only increase, making the water even less drinkable.

I just looked under the rocks you moved. The sulfur ore here is very pure, with few impurities. That's because this is right under the volcanic vent.

It is conceivable that the entire island was formed by volcanic eruptions, so there is sulfur in other places as well, it’s just a matter of how much.

After thousands and tens of thousands of years of wind and sun, the surface began to weather, and then gradually became suitable for plant growth, and later birds appeared.

The surface of the land also has sulfur fertilizer that is more conducive to crop growth, which is why we see that the rice here grows better.

However, the water that the villagers drink comes from wells, which are deeper and contain acidic substances unlike the crops on the surface.

Over time, the chances of women here giving birth to girls have increased.”

Yu Yuanzheng sorted out what he understood in his mind, and then expressed it in words that everyone could understand as much as possible.

Everyone suddenly understood after hearing this.

"That is, the entire island is covered in sulfur, and the sulfur becomes acidic under the exposure to wind and sun, thus affecting the villagers here?" Shangguan Ziqi expressed his understanding.

"Yes."

"I see." The retired emperor stroked the small wisp of beard under his chin and nodded repeatedly.

He understood.

In other words, this place is both a treasure trove and a disaster place.

"Is there any way to change this situation?" The old prince also understood what was going on, but he wanted to arrange people here. This problem had to be solved.

"Yes, all the food is transported from land, but this is not realistic." Yu Yuanzheng shrugged helplessly.

"What does the Grand Emperor think?" the old prince asked Emperor Qiming again.

Both of them wanted to take over this treasure island.

"Move everyone to Dawei. We'll station soldiers here and rotate them out every year. We'll also send some laborers to mine the sulfur, and rotate them out regularly as well."

"The emperor is wise." The old prince thought so too.

"Your Majesty, the millet here can be transported to our Great Wei and used as seeds.

After so many years of transformation, I estimate that the millet here will be able to produce high yields even if it is planted in our Dawei, at least better than the seeds we currently have.

Since we're sending people here, we can continue to cultivate the land here and continue to provide high-quality seeds to the Wei Dynasty," Yu Yuanzheng suggested.

"That's right. Let's do it." The emperor was in a better mood. "Let's go down the mountain."

On the way down the mountain, the three children pestered Yu Yuanzheng to continue talking.

They weren't satisfied with what they had just heard.

After all, they are less than ten years old and their comprehension ability is not as good as that of adults.

Yu Yuanzheng explained the contents to the children step by step from the simple to the complex.

Let’s start by talking about how volcanoes are formed.

The kids were really enlightened after hearing this.

It is true that traveling thousands of miles is better than reading thousands of books.

"Mother, we have been staying on the island for a few days. Will I only be able to give birth to girls and not boys in the future?" Shangguan Yajing asked a soul-searching question without feeling embarrassed at all.

How could a little girl who hasn't even turned ten be so bold?

"Haha, third sister, you actually think so far." Shangguan Changrui teased.

"Hmph, I'm just asking. Didn't mother say that children who like to ask questions are smart children? Who is like you, who only knows how to play?" Shangguan Yajing raised her neck provocatively towards him.

"Jing'er, don't talk nonsense. How old are you? How can you say such things?" Shangguan Ziqi was stunned and scolded.

But Yu Yuanzheng gave the child a look of praise.

"That's right, you know how to draw inferences about other situations. Jing'er, it's okay for you to talk in front of your parents, but you must not be so shameless in front of outsiders. You are a girl, you should be reserved." Although Yu Yuanzheng was happy with her child's intelligence, she also had to teach her to pay attention to the occasion when speaking.

"Mother, I understand. You haven't answered my question yet." Shangguan Yajing held Yu Yuanzheng's arm and walked down the mountain together.