In the early days of August, the weather is getting cooler.

Even if the sun is shining at noon, there is no longer the feeling of pain in the skin of the people who were roasted before.

Xuandu slowly walked in the small forest on the bank of the Huaishui River, specially picking up the shade of the trees that the sun could not reach.

The rippling blue water of the river rushes to the east, and the blue sky looks high, only a few white clouds float in the distance.

Maybe it's not so hot anymore, and the sound of cicadas is much thinner.

Ahead is Linzhuanguan.

Xuandu took a step and looked up at the front.

A path winds deep into the woods, with farmland on one side and a canal on the other.

Xuandu stopped, his face a little hesitant.

Since that day, after the great merchant Xuanniao wailed and was divided away from his luck, the master let him go out and walk around.

So he listened to the guidance of his master, said goodbye to his master, the gold and silver boy and the horned green ox, traveled lightly, and went out of Daluo Mountain.

But where do you go?

The master didn't tell him, so he wandered around on his own.

He was very familiar with Nanbu Continent and the Terran race, because he was the first disciple of the Human Sect, and he was also the first generation of human ancestors fabricated by the Nuwa Sage.

No one knows the Terrans better than he does.

He witnessed with his own eyes that the human race had moved from a small valley in ancient times to all directions, leaving footprints in every corner of the Flood Desolate Continent!

Even now, he often walks in Terran territory.

Wearing a green sermon robe and a pair of babacn shoes, he has accompanied him for many springs, summers, autumns and winters.

also accompanied him from the wild cave to Gaocheng Dabu, from Rumao drinking blood to Zhongming Dingshi, from the Three Emperors and Five Emperors to the Great Shang Dynasty......

Now, he's going to keep going.

After leaving Daluo Mountain, he planned to go to Naqi Mountain to take a look, but halfway through, he heard that there was some chaos in the lower reaches of Huaishui, so he turned to the southeast and wanted to see the excitement.

But along the way, his brow furrowed deeper and deeper.

The world has changed.

Cause and effect are chaotic, and there are countless obstacles.

The god of incense and fire acted recklessly, forcing the human race to sacrifice and worship by various means, and regarded the human race as a tool for tempering incense and copper.

Most of the officials, wealthy households, and witches in the city became the helpers of the incense god.

One side gathers money, and the other side condenses incense copper.

Each takes what it needs and cooperates for a win-win situation.

But for ordinary people, life is getting more and more difficult.

"Western religion has gone too far." Xuandu muttered to himself: "After this trip back, I must have a good discussion with Shizun." ”

With that, he continued on his way.

Further on, it is Linlianguan.

It is said that the water god there was chosen by the people themselves.

It's a lot of fun.

Xuandu walked towards Linzhuo Pass with great expectations.

It is said to be a pass, but in fact, there is no danger to defend here, but it is just a settlement built when the wasteland was reclaimed.

Except for the castle gate, there are neatly cultivated farmland on all sides, and the rice planted in it is almost harvest season.

Xuandu stopped to watch, but saw that dense rice grew in every piece of farmland.

One by one, the roots are connected, and the branches and leaves are interdependent.

There is no end in sight.

And almost every stalk of rice has ears that hang down and are extremely full and large.

The ears of rice are heavy, tinged with green, and are bright and dripping.

"How can the rice here be so dense?"

A hint of incomprehension flashed in Xuandu's eyes.

Although rice is not grown in most places in the southern part of the continent, he knows that in the areas with abundant water systems near the south, the people mostly feed on rice.

However, rice is water-loving and not drought-tolerant, so it is necessary to ensure that there is enough water in the field after planting, otherwise it will easily be sunburned.

If you want to grow rice, even in a place where the water system is abundant, you have to look at the face of the water god.

Even so, rice is a much more delicate crop than hemp, millet, millet, wheat, soybean, and so on.

Pests, birds, weeds, etc. can all pose a deadly threat to rice.

Xuandu, as a human ancestor who has run through the history of the human race, knows all about these things, and even "took" the ears of rice of the Earth Emperor Shennong's clan in the Huoyun Cave.

The rice grown with Shennong's ears of rice is so large and full that it is called Jiahe.

But at this moment, he saw Jiahe everywhere!

Looking into the distance, the shore of the surging water is filled with mist.

Tall wooden utensils stand on the shore, wheel-like shapes that slowly turn, rolling up waves from the bottom of the water and leading them down the channel into the canal on the shore.

Xuandu looked at the wooden utensils carefully, and there was a look of novelty in his eyes.

In the end, he determined that this thing did not need supernatural powers, nor did it need Taoism.

Rather, it rotates with the flow of water, and continuously leads the water of the river into the canal.

As long as the water does not dry, this appliance can work day and night.

This is much more reliable than the water god!

Xuandu was very interested, so he asked a few people in this farmland.

These people were guarding the rice fields to prevent birds and beasts from spoiling the rice, but they also had time to chat with him.

From the mouths of these people, he learned a name - Wen Zhong Shangxian.

It was this Wen Zhong Shangxian who asked the people to cut down trees, drag them to the river, and make huge wooden tools called "water wheels".

He also taught the people to build canals, dig silt from riverbeds and riverside tidal flats, use it to fertilize fields, improve agricultural tools, and select rice seeds......

As a result, the people near Linzhuanguan, although they do not sacrifice to the god of water, but the fields will never lack water, the crops are lush, and it seems that an unprecedented harvest is coming.

After hearing this, Xuan Du was amazed in his heart, and he also had a trace of curiosity about that Wen Zhong Shangxian.

An old man who couldn't hide his smile and showed a mouthful of teeth enthusiastically introduced: "If you want to find an immortal, you will definitely be able to see it in the grove south of the city at this time." ”

Xuandu thanked the old man and soon came to the grove south of the city.

In the middle of the woods there was a thatched hut, and hundreds of children sat in the shade of the trees, with a large circle in the middle.

Surrounded by these children, a young man with a wide forehead and big eyebrows was talking about something.

The children listened very carefully one by one, but Xuandu, who thought he knew everything about the human race, found that he didn't understand it well.

What are bacteria?

Why do you have to boil water before drinking?

What is immunity?

……

Before he could figure out these questions, he listened to the young man say, "After talking about hygiene, let's learn mathematics again...... As I told you before, this mathematics is a tool, a tool that can help us understand the world and study the world.

It's not just a simple addition, subtraction, multiplication, and division...... It allows us to study space, time, information, machinery, and so on......"

As the young man spoke, Xuandu's eyes in the distance gradually widened.

He knew he was in the right place!

What else is this going to Xiqi!

If it weren't for the fear of disturbing the children, he would have raised his hand and shouted, "I want to learn math!" ”

(End of chapter)