Ye Jinyu watched from the sidelines, this is going to confirm the matter? hurriedly said: "Your Majesty, slowly, just now I only talked about the length, or the weighing instrument and the measuring instrument did not say!" ”

The emperor was in high spirits, and when he heard the man of God say that there was something to follow, he even put aside the matter of the map for the time being, and hurriedly said: "The man of God, please speak quickly!" What else is the name of this weighing instrument and measuring instrument? ”

Now that the length has been determined, the rest is easy to do.

Ye Jinyu made a long story short: "Your Majesty, we are based on the male step, the length and width are the area of one metric step, which can be called square, it is flat, and it should be called square; If the length, width and height are all one metric step, and there is a volume, it can be called a cube. ”

"With this cube, it is possible to develop standard units of weight; We only need to fill this cube with something to get a standard weight, as for this filling, we must not use something like millet and millet, there will be some gaps in the middle of this kind of solid, which is not standardized, easy to make mistakes, and it is easy to provide to some lawbreakers; So, I think we need to fill it with something that can flow, like water! ”

Ye Jinyu talked about everything, but the audience around him nodded again and again, sometimes this kind of thing is like a piece of paper, as long as it is broken, it will suddenly become clear. In the eyes of the natives of the Tang Dynasty, a man of God is a man of God, his thinking is broad, and his ideas are many; Why didn't I think of such a simple thing?

Seeing that Li Yuan was listening carefully, Pei Lin immediately said to the living notes and the officials of Taifu Temple next to him: "Write it down, write it down quickly, these must be together with Gongbu, and they can be used in the world." ”

In order to let Ye Jinyu finish speaking, Zao Chao dragged it out until noon.

By the time of the next dynasty, Ye Jinyu had systematically divided the units of weight: tons, kilograms, and grams, and the units of area: square kilometers, hectares, acres, and square meters...... Well, now it should be called square steps, and there are volume units: cubic steps changed from cubic meters, liters, milliliters, etc. The metric units are converted except for the units of time and temperature.

Today, the ministers of the great hall have not only seen the western scenery of gods and men, but also learned about the new and novel forms of weights and measures; When the San Dynasty walked out of the main hall, everyone was still discussing what they had seen and heard today, and the atmosphere was very warm.

At this time, the official of Taifu Temple, who was ordered to promote public walking, stopped a senior member in front and said: "Duan Gong Ministry, Your Majesty ordered my Taifu Temple to promote Gong Bu to the world, which needs to cooperate with the Ministry of Industry, and ask the Duan Gong Department to take care of it in the future!" ”

"Don't, don't call me Duan Gongbu!"

It was Duan Lun, the secretary of the Ministry of Industry, who was called (Duan Lun was still his king of Sichuan in Sichuan according to historical facts, the novel has been changed, don't be too entangled), as the Ministry of Industry of the Tang Dynasty, the people in the rivers and lakes are called Duan Gongbu! This is an honorific title, but after hearing Gongbu today, how to listen to it is not a taste, every time he hears someone say Gongbu Gongbu, he always thinks that he is calling himself; Imagine that it was originally a high-ranking official and work department, but it has become a public step that the emperor can use for everyone, how can the difference in status make the Duan Ministry happy? However, as the emperor's son-in-law, he not only cannot oppose his father-in-law's hobbies and decisions, but must also resolutely support them. Obviously he was so unhappy that he couldn't do it, but he had to help promote it, which made him depressed.

Duan Gongbu looked at the copper wire that the god took from the hand of Taifu Siqing to represent a "public step", shook his head and said:

"In the future, you will still call me by my word, and stop calling me with an official title! Transgression! I can't stand it! ”

……

Ye Jinyu tried the emperor's lunch, maybe it was after thousands of years of taste evolution, or because of the evolution of seasonings, anyway, Ye Jinyu didn't eat as much fried rice as on the street stalls...... At least, though, it's lunch.

Speaking of business, the emperor, the crown prince, the king of Qin, and the informed King of Qi, plus the national teacher and his apprentices, are still yesterday's lineup. Other than that, no one else was present, and even the eunuchs were driven away; Therefore, all the work had to be done by the prince and the apprentices of the national master who were present.

The apprentices of the King of Qi and the National Master had the lowest status, so the task of unfolding the map was given to the two of them.

The table is not that big, so it can only be placed on the ground, and the rolled photo paper will roll up by itself, and if you don't make something to press it, it will keep curling the edges; The three princes and the disciples of the national teacher each pressed a corner of the map before the map was completely opened.

The whole world of one meter and five meters high and three meters long is fully displayed in front of the natives of this time and space for the first time.

"This ......" Li Yuan looked at the color blocks on the map with a blank face, it seemed that it was not the same as the map of the Tang Dynasty, there were no image mountains, no roads, no forests with small trees, and no cities; There is nothing to understand, what is the value of this kind of map?

I had no solution, so I could only look at Ye Jinyu as if asking for help, and said, "Godman, this map still needs Godman's guidance!" ”

Ye Jinyu nodded, and kept the edge of the KT board in his hand, which was about three or four meters long, which was very convenient; Pointing to the location of Xi'an with it, he said: "Your Majesty, please look, this is where we are now, Chang'an City!" ”

"Wouldn't it? Chang'an City is so big, there is only such a small point on this map! Seeing Li Yuan squinting his eyes and trying to find the handwriting of Chang'an City on the map, Ye Jinyu thought to himself that he should bring a few magnifying glasses next time.

Li Yuan was entangled in the size of Chang'an City, and Ye Jinyu, who was a teacher for the first time, didn't know how to explain it reasonably, so he could only say: "The world is very big, and the size of this map is limited, so the scale is very large, and if you press it on the map with your finger casually, it will be pressed for hundreds of miles." It's not easy to find a small place like a city, so let's look at the big place first. ”

Where does the big place begin? Looking at the large and small color blocks on the map, Ye Jinyu didn't know where to start, for geography, he was also half a bottle of water; After thinking about it, it is better to teach the natives to learn to read the map first, otherwise many of them will have to be explained, which is very troublesome.

"Let me start by telling you how to identify this map."

After drawing a large circle on the Pacific Ocean with the stick in his hand, Ye Jinyu said: "The blue one represents water, and this large blue place is the ocean!" A little deeper blue means that the ocean is also deeper. This kind of deep trough one by one is a canyon in the sea. Well, you just need to know that, with the current level of technology, it's still very early to get to the trench. ”

Ye Jinyu said casually, but when Li Yuan and the others heard it, they didn't know it, a god man is a god man, and even the topography of the seabed is clear. Regarding the explanation of the sea, none of the Tang people present could interject, they could only listen to what Ye Jinyu said.

After hastily finishing the ocean, the stick pointed to the land of Middle-earth: "The color of the ground is mainly yellow and green, and this green roughly represents woodland, pasture, and cultivated land. As he spoke, Ye Jinyu started the stick from North China, first to the northeast, to the Outer Khing'an Mountains, then to the south to South China, Southwest, and then all the way to Southeast Asia, and finally to India.

"Like this large area, there are basically green belts such as forests, cultivated land, and grasslands, all of which are green, and the ones that have been turned into cultivated land are not so dark, and they are a little yellow-green. This dark green is basically an old forest in the mountains. ”

Then he pointed the stick to the Western Regions and said:

"The colors on this land, except for green, are mainly yellow, and yellow mainly means the desert, the Gobi, like here." He pointed to Central Asia and Xinjiang and said: "Many of the western regions such as Tuyuhun and Turkic are in the desert. ”

Green means leaves, yellow means sand, this expression is very vivid, the natives have nods, it's easy to understand!

"And here, a little yellow to purple this piece of high ground, which doesn't look obvious on the map, but is actually the highest place in the whole world; Now it belongs to the country of Tibet! ”

"Tibet?" This is one of the few fierce enemies in Datang now, and several natives have come close to observe the enemy's situation.

It's a good thing that students are studious, but now is the time for the teacher to explain, Ye Jinyu coughed dryly, and said: "This Tibet, we'll talk about it later, and let's finish reading this map of the world first." ”

Taking the meaning of this map, the natives gave enough face to the gods, listened to Ye Jinyu's words, and hurriedly stood upright like a beginner Mengtong. It was just because the three princes and the disciples of the national teacher left their positions that no one pressed the edges of the photo paper map, causing the four corners of the photo paper to start rolling up again. The four of them hurriedly returned to their respective positions to press the photo paper, but their heads stretched out to the elder, wanting to see Ye Jinyu's explanation clearly.

The emperor couldn't bear to see his sons so uncomfortable, and said to Ye Jinyu: "Why don't you take a few inkstones to suppress the four corners of the map?" ”

"Yes!" Of course, Ye Jinyu doesn't care. Hearing his answer, the four corner-pressing people took the inkstone on the table closest to them as quickly as possible, and pressed the four sides instead of themselves.

The lecture continues.

"The world is divided into five continents and four oceans......

As soon as Ye Jinyu finished speaking, the King of Qi asked, "Hey, aren't they the four major states?" There are four major prefectures in the east of Shenzhou, West Niuhe Continent, South Ganbu Continent and North Julu Continent. ”

Ye Jinyu looked at King Qi and said in his heart that this young man is good, and he has learned to answer; However, King Qi's words made the national teacher unhappy, and he saw the national teacher say with a straight face: "The so-called four major states are actually a trick made by those monks to coax the world, King Qi should not be too superstitious." Let's listen to the man of God! ”

was reprimanded by the Taoist priest lightly, and seeing that the emperor and his two brothers were also looking at him, King Qi hurriedly shut up. You must know that their family name is Li, and they are the descendants of Taoist ancestor Laozi, and your descendants of Li Er went to study Buddhist classics, like words? No wonder the Taoist priest was unhappy.

was interrupted by this little episode, Ye Jinyu found that if it weren't for the Caucasian people forcibly dividing the Asian and European continents into Asia and Europe, there would indeed be only four continents! However, the words of the five continents have been spoken, and they can only continue to be said in the name of the five continents, but fortunately, there are still five large plates on the map, and the words of the five continents are easy to come back, but the name is a problem, and it must not be continued to use the names of Europeans such as Asia, Europa, and America. What to do? How do you choose a name?

"Look at these five continents!" Ye Jinyu successively clicked on Asia, Africa, Oceania and North and South America, and said: "These five continents are the continents where people can survive, and the five continents are named after the five elements of the Taoist Yin and Yang Five Elements, which are Jinzhou!" As he spoke, he pointed at the Eurasian continent with his stick.

"Muzhou!" North America.

"Water island!" South America.

"Fire Island!" Africa.

"Tuzhou!" Oceania.

Hearing that it is related to the five elements of Taoism, the national teacher hurriedly asked: "May I ask God, I don't know if there is a reason for the names of the five elements of the continents?" The emperor and the princes also wanted to understand this question, and they couldn't help but look at Ye Jinyu.

Ye Jinyu recalled the geography knowledge in high school and said:

"This Jinzhou." He drew a large circle on the Eurasian continent. Then he said: "The land is vast, and there are all kinds of resources such as minerals, especially the population resources; It is the best of all continents in terms of area and wealth, so it is called Jinzhou. ”

"Muzhou! The forest resources here are abundant! Mineral resources are also abundant! "Well, it's all about naming......

"The water island, which has the largest rainforest in the world, and the richest precipitation in the world. The most valuable thing here is that there are several grain crops that yield thousands of kilograms per mu. ”

"Fire Continent, this continent as a whole is actually quite good, there are not only a lot of gold mines, gem mines, but also the world's largest copper mine, but this part of the north is really hot, so it is called Fire Island."

"Tuzhou, good grazing."

Ye Jinyu's heart was empty, and the knowledge that he could remember in his mind was about to be emptied, so he knew that he would take the geography book to review the knowledge before coming back.

Fortunately, when he felt that he was about to lose his ability to make it up, the prince Li Jiancheng relieved him and asked:

"May I ask the man of God, what is this place?"