At this time, in addition to sighing and exclaiming, everyone no longer knew what to say. As for His Majesty Li Er's gaze looking at Chu Ze, it was even more fiery and bright and terrifying. At this time, if someone says that they want to kill Chu Ze, they are not allowed to kill His Majesty Li Er without saying a word, and kill the person who said this.

Seeing that everyone was still immersed in the benefits of building reservoirs, Chu Ze suddenly remembered the places where reservoirs and dams were built in later generations.

His heart moved, and he said, "Your Majesty! The location of the reservoir and dam is also crucial, considering that the impulse brought by the opening of the reservoir to release water can wash away the silt in the middle and lower reaches of the Wei River. On the other hand, it is necessary to make use of the terrain as much as possible to save manpower and material resources. For example, there is a small valley on the side of the Wei River in a certain place, which causes the water of the Wei River, and then as long as the mouth of the valley is sealed, it is a reservoir. In other words, if the terrain can be used well, it will save a lot of manpower, material and financial resources, especially time. ”

His Majesty Li Er's eyes lit up again, and he couldn't help but laugh and said, "What Chu Aiqing said is reasonable. The location of the reservoir and dam is indeed crucial. This makes good use of the terrain, and maybe it will be possible in a year or two. ”

Chu Ze thought that he might ask for something to His Majesty Li Er in the future, so he simply tried his best to show it.

He thought about it for a while, and when he was on a mission near Chang'an City in later generations, the exploration terrain was the location of Heishui Gorge, Niugu Gorge, Jigu Valley, and reservoir that he discovered. Picking up a pen from the bookcase next to him, dipping it in ink, he spread out a piece of paper on the table, and drew a river line with a tail drag upward, slightly like a 'meter' shape, in the shape of the Wei River in his memory. Then I nodded a few points in my memory of the location of those reservoirs.

In the etymological sense, when it comes from the stomach, it is named after the shape, and the stomach is a pictogram in the oracle bone inscription, like a bag with "rice" (grain). Jin Wen is a Huiyi character (like "rice bag") (月, i.e. "meat"), emphasizing that "rice bag" is an organ of the body. In the shape of the Wei River, after the water enters the Chuandao area, the river bed is gently widened, and the river is scattered into several branches, and the river banks are densely packed between the branches, and the shape is just like the stomach of animal organs.

Everyone didn't know why, Chu Ze blew the ink, held up the white paper, showed it to everyone, pointed to the 'rice' shape and said: "This is the shape of the Wei River, and the location represented by these ink dots is the approximate location that is most conducive to the construction of the reservoir." ”

Through the millennium, what is the knowledge that exists in the brain that is really useful in the world? Knowledge of geographical maps is absolutely useful. At least it is absolutely enough to deter the ancients, and everyone including His Majesty Li Er looked surprised and incredible. You must know that in this era, or before this time, it is difficult to know the overall shape of the Wei River.

Don't look at the atlases on the street stalls in later generations, one is only worth more than ten yuan, but it is a map drawn by millions of people in later generations of surveying and mapping projects and various advanced instruments, including satellite shooting, and it is unimaginable to the ancients thousands of years ago. It's no exaggeration to call it a priceless treasure.

Chu Ze's history can only be regarded as a big difference, but because he studied cartography in the military academy, so in terms of map geography, Chu Ze can definitely be called an expert, he can even refer to anything himself, he can silently draw the world map of the distribution of countries, not to mention the domestic map, the main rivers and mountains, the provinces and major cities in later generations He can draw more accurately on the map.

And just painting a Wei River in front of him is really easy for Chu Ze, and it is effortless.

If someone else draws a stroke of the word 'rice' and says that it is the shape of the Wei River, there is a chance that it will be eight times out of ten. Nine Few people would believe it, not even the court ministers like the eldest grandson Wuji. However, Chu Ze has won the trust of everyone with a series of deeds, so Chu Ze drew the shape of the Wei River, although it cannot be 100% believed, but it has great credibility. At least His Majesty Li Er and several important ministers at the scene basically believed it.

Cen Wenwen has read a large number of geoscience books, and carefully deduced the geography of rivers and mountains, and more or less knows some of the direction of the Wei River, especially the direction near Guanzhong and Chang'an, which is quite familiar, he stared at the white paper in Chu Ze's hand at this time, and compared it in his mind.

In fact, in the world, such as the Yangtze River, the Yellow River, and the Wei River, no one knows the complete flow of such major rivers, and among the most complete, authoritative, and famous geographical books such as "Geographical Chronicles", "Classic of Mountains and Seas", and "Notes on the Book of Water", there has never been a page of the map of the world.

For thousands of years, the ancients could only know the general direction of the Wei River, the Yangtze River, and other major rivers, or the specific shape of a state or county, and that was only a small number of people who knew a lot.

"Is this what the Wei River looks like?" The eldest grandson Wuji, Fang Xuanling, Wei Zheng, and Cheng Da Demon King also approached curiously, looking at the white paper in Chu Ze's hand, although they had all seen the Wei River, they also drank the water of the Wei River tributaries every day. But even in their capacity, it is impossible for them to explain the shape of the Wei River clearly.

At this time, His Majesty Li Er could no longer sit still on the throne, and also walked down from the throne and came to the front of Chu Ze, and several other people hurriedly gave way and let the Son of Heaven stand at the front.

"Yangquan County! You tell the old man where Chang'an City is, and the old man will be able to discern to a certain extent whether the shape of the Wei River you have drawn is correct. Cen Wenwen said in a deep voice.

Chu Ze smiled slightly, motioned for the two chamberlains to come over and hold the white paper, then took the brush, nodded a little on the lower left of the word 'rice', and said, "This is Chang'an City."

"Cen Aiqing! Is what Chu Ze said the same as you know? His Majesty Li Er stared at Cen Wenwen and asked solemnly.

Cen Wenwen was shocked in his heart, and his admiration for Chu Ze was undisguised on his face, and he said: "Other places, the minister doesn't know, but this section of the Wei River near Chang'an, what Chu Ze painted is completely consistent with reality." ”

With the passage of millennia, many specific geographical terms have changed. Chu Ze may not match the name of the place with later generations, but the large area Chu Ze has already figured it out after confirming each other with his memory, especially Chang'an City, a famous city through the ages, the geographical location and has not changed, but the name has changed slightly, but basically there is no big problem, Chu Ze will never be mistaken.

Chu Ze looked at everyone's shocked looks, especially His Majesty Li Er's eyes that looked at him as if he were looking at a beautiful woman, and thought to himself that he would simply let you turtles have a good look today. It also lets you know your own value, so as to enhance your status in the hearts of the Tang Dynasty monarchs, especially His Majesty Li Er.

Thinking like this, Chu Ze pointed to the empty space on the right side of the word 'several' and said, "This is Liangzhou." ”

The finger pushed up from the east of the river, stopped at a point on the prefix of the word 'rice', and said: "This is the current Tuyuhun Dafei River." ”

Everyone looked at Chu Ze and pointed out the country, and they were already shocked.