Long before the weight of one kilogram was manufactured, all countries in the world had their own set of ways to calculate their own weights and measures, among which, the ancient Chinese calculation method was to use ten grains of millet.

Based on the weight of 10 grains of millet, 100 grains of millet with little difference are worth one baht, and six baht is one pew.

Ten grains of rice were selected to replace millet rice.

"Since last year's harvest, we selected 10,000 grains of rice, and selected 10 grains, which were not big or small, and based on the weight of these 10 grains, the number of 100 grains was one baht, so I took 1,200 from the remaining 10,000 grains, and after weighing them repeatedly, we obtained the weight of 12 baht. ”

"Twenty-four baht weighs one tael. ”

In the Han Dynasty, one tael was 15.6g, and one baht was 0.65g.

Yu Zai said, so with this method, you can reproduce the ancient counting method, which is the calculation method of the Qin and Han dynasties, from the "Guanzi" and "Sun Tzu Sutra", and later continued to be used until the Han Dynasty, so this system is still very complete, with the same amount of conversion formula.

"Sun Tzu's Sutra" cloud: "It is called from millet and ten taels is a thread; ten threads are one baht, twenty-four baht is one tael, and sixteen taels are one catty." ”

"Hanshu Chronicles of the Law": "One 龠 (yuè) holds 1,200 millet and weighs 12 baht, and two are two. Twenty-four baht is two, and sixteen taels is catty. ”

Of course, this base system is different from that of later generations.

And the importance of things, the earliest recorded question, the source of Shan Mugong and Zhou Jingwang, when Zhou Jingwang wanted to mint a lot of money to increase the value of the currency, and then was sprayed by Shan Mugong.

Weights and measures are one thing, at least for a long time inseparable, the weight of money is equal to value, value makes the economy and trade, prosperes the market and feeds the country....

The coin is heavy and everything is light, and the coin is light and everything is heavy.

Therefore, the standard of "weighing instrument" must not be set arbitrarily.

"With this, then it is possible to move up in base units, I reproduce the effect of trade-offs, and improve them...."

"With this, then there is a corresponding standard for the weight of water in the rain gauge, so you can judge the upcoming weather according to the size of the stored water level, whether it is a normal torrential rain, or a continuous drizzle, or a non-stop rainy season, or a flood disaster..."

Yu Zai pointed to Libra and said: "I was the first to make this instrument, but at that time the world did not know the role of the instrument, at least during the Hao period, the center of gravity of the world turned to Dongyi, so it was buried for more than ten years, and after the Zhuan, no one would make this instrument." ”

Shao Hao doesn't like these things, he is a standard food farmer, and he is not very interested in weighing metal numbers or something, which is also the problem with Chi You's evaluation of him at the beginning, when the Yellow Emperor appointed Chi You as the head of his "six phases", Chi You in this period has not gone out to work alone, but as soon as he heard that he was going to be Shao Hao's teacher, he resigned and took a plane overnight.

Yu Zai said to the people: "Since the Suiren, there has been no one who has not used the way of weighing the weight to govern the world, and since the Fuxi clan, there has not been anyone who has said that he can become a king without the way of weighing the weight of the light." ”

"On this trade-off, there are ten grains of rice on the left, but these ten grains of rice carry the people of the whole world, and everything that is beneficial to the people must start from these ten grains of rice. ”

These words surprised several qi refiners, and Chi Songzi was also surprised, although he knew that Yu Zai had always had some ability, good at discovering new things and summarizing the wisdom of his predecessors, but he really didn't find that Yu Zai still had this kind of "world-minded" thinking.

"Why should the teacher be surprised?"

When Yu Zai saw Chi Songzi's demeanor, he couldn't help but say: "Weights and measures are very important things! In this world, there are unthoughtful weights, and there are also lightness of feathers; there are no roads high, and there are also candles and dragons far away." ”

"When we plough the land, we used to use steps to calculate, people walk twice is equal to one step, but there is no way to calculate how big the cultivated land is, the head did not put forward a conclusion, but we used the acres to calculate, stipulating how long and how wide it is...."

In this way, it is convenient for us to summarize the amount of grain in the farmland, how much grain is in an acre, and the other acres of land are planted according to this acre, and when the statistics are made, there will be no loss and loss, and if someone steals it, it can be found out at once and punished him. ”

Several Qi Refiners all looked at each other, and Zhu Rong and Chongbo were even more stunned.

A tribal wizard who thinks so many things from a trade-off....

"It's not bad! The trade-off that can reproduce the head of the subordinate should indeed be a talented person!"

Beimen Cheng praised it, and became more and more happy, everything he saw from the "monitor" was far less than what he was asked in person.

He suddenly asked, "If you were given a tribe of 10,000 people, what would you do?"

This is a whim, Chi Songzi's eyes moved, and Zhu Rong's eyes also moved.

However, Yu Zai still replied seriously: "I don't know how to care." ”

Beimen Cheng was puzzled.

Yu Zai explained the reason:

"Because you didn't tell me what tribe these ten thousand people were, whether they were my own tribe or a tribe that had been fused together, or were there five thousand slaves among them? how many northerners, how many southerners, how many easterners, how many westerners, were there feathered people, were there fire-weary people, were there nail spirit people, were there salt chiefs?"

"So are these 10,000 people on the way to flee, or on the way to migrate, in the era of the Three Emperors, or in the current world?

Beimen Cheng was stunned for a long time after hearing this, and finally apologized to Yu Zai: "It's because I didn't think about it." ”

As he spoke, he also smirked, and asked himself in his heart, he had worked with the Yellow Emperor for so long and cultivated his qi for hundreds of years, but in the end, he lost all his skills and calculations back then.

However, his question and his answer aroused the interest of the two people.

There was an unclear light in Zhu Rong's eyes, which remained dim, while the light in Chi Songzi's eyes was very simple excitement.

Chi Songzi simply felt that it was a pity, Dayi told himself at the beginning, don't recommend Yu Zai, and his own apprentice [Biqu Island www.biqudao.xyz] has such a great ability, put it outside, it is a big force, but such a big force can't be pretended, which makes Chi Songzi uncomfortable to death.

And Zhu Rong thought that the appearance of Yu Zai might be one of the reasons why the emperor asked him to come to the south.

"This little wizard is not simple. ”

Zhu Rong was calculating, and at the same time frowned slightly.

This is the meaning of the sour, not in the vinegar vat.

After all, there is such a small wizard in the barren south, since he has entered the sight of the emperor, and the emperor has not told himself too much information.... Now that this contact has made me realize that it turns out to be an extraordinary person.

It's really sour...... This kind of talent is not in the Central Plains?

Your mother's, why!