"PS: Who said I didn't want to pay off my debts, the problem is that these two chapters are quite difficult to write, it took about three chapters just to find the information, not to mention perfecting the idea, it is no exaggeration to say that the amount of work in this chapter is at least worth four or five chapters. If it weren't for the sake of practicality, I really wouldn't want to write a chapter like this that requires clear values.'"

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The so-called weights and measures refer to the general standards used to measure the length, volume, and weight of objects. Among them, the instrument used to measure the length is called "degree", the instrument used to measure the volume is called "quantity", and the tool used to measure the weight of an object is called "scale".

Yesterday, Zhao Hongrun first determined the standard of "degree", although the old "1 zhang = 10 feet = 100 inches = 1000 minutes" is still used, but in fact, because the standard of "one foot" is accurate, therefore, it is different from the old ruler system originally adopted by Dawei.

After standardizing the standard of "degree", Zhao Hongrun did not take advantage of the trend to standardize the "quantity" of calculating the volume, but first chose to determine the "balance", that is, the weight, because in his opinion, the standard of "quantity" of standardizing the calculation of volume is the most headache for him in weights and measures.

As for the standard unit of weight, Zhao Hongrun naturally would not choose the "kilogram" or "gram" in his memory, firstly, it was a foreign product, and secondly, the Wei people could not understand what was called "gram" at all, so he still planned to use the old system of "liang" and "jin" as the basic unit of weight, and what he wanted to do was only to standardize it on this basis.

According to Zhao Hongrun's knowledge, the ancients were the first to use "絫", that is, yellow rice as the standard of physical objects, stipulating that "ten silk is one baht, twenty-four baht is two, and sixteen taels is a catty", simply put, one catty is about equal to the weight of 3,840 grains of yellow rice.

But this time. Zhao Hongrun did not intend to adopt the old rules because the old weight unit conversion was too complicated and cumbersome to calculate.

Therefore, after thinking about it for a while, Zhao Hongrun chose rice, which was becoming more and more common in the territory of the Great Wei Dynasty, as the constant standard of physical objects.

First of all. He first asked the craftsmen of the Smelting Bureau to make a wooden pallet balance scale using the simplest principle of lever balance, and then took a small cloth bag large enough to hold 240 grains of rice, first used the balance scale to weigh the small cloth bag, and used the rice as a unit of measurement.

Then, among the 240 grains of rice, the same weight as the small cloth bag was subtracted, and the weight of the rice was obtained.

And after that, Zhao Hongrun did not choose the conversion method of "one catty and sixteen taels", because in his opinion. This complicated calculation method was not conducive to their smelting bureau to calculate the weight of a large number of objects in the future, nor was it conducive to his introduction of decimal multiplication and division in the future, so Zhao Hongrun decided to keep the weight of "one catty" at "ten taels".

This new jin system, which was first adopted by the Smelting Bureau in the future, was about twice as heavy as yellow rice. Therefore, one Su Liang is almost equivalent to two old two. However, because the Su Jin system uses the decimal system, therefore, one Su Jin is not less than twice the size of one old Jin.

But it is undeniable that whether it is under the new rules of the Jin system, whether it is Su Jin or Su Liang. are much heavier than the old catty system.

Unfortunately, the vast majority of the people present could not understand why Zhao Hongrun used rice as a measure, nor could they understand why he stipulated that the conversion of catties and taels was ten times instead of the original sixteen times.

After this. Zhao Hongrun also regulated the weight of "Jun" and "stone", stipulating that "1 stone = 10 Jun = 100 catties = 1,000 taels = 10,000 yuan = 100,000 baht", under this new regulation, one Su Liang is about 2 times the old one tael, one Su Jun is about 2/3 of the old one Jun, but one Su stone is about 5/3 of the old one stone.

"Note: A comparison of the old and new pound system is attached. Attention, it's all approximate value!!"

"Original: Baht 0.65g, Qian 3.7g, Liang 15.6g, Jin 250g, Jun 7500g, Stone 30000g"

"Su Jin system: 0.5 grams of baht, 5g of money, 50g of taels, 500g of jin, 5000g of jun, 50000g of stone"

In general, there is a significant difference between the conversion of the Su Jin system and the old Jin system, however, the conversion of its decimal is obviously much easier than the old Jin and two systems, which can be said to be clear at a glance, but unfortunately, there are still many people who are skeptical about it.

No, after unsuccessful persuasion by the Bureau of Smelting and Construction, Wang Fu said cautiously: "Your Highness, otherwise, the 'new Jin System' will be used in our Smelting Bureau first, and will not be pushed to the Sixth Department of the Central Committee for the time being?" ”

"Is Wang Jucheng worried about the reaction of the household department?" Zhao Hongrun obviously saw through Wang Fu's thoughts.

Think about it, you must know that the household department is in charge of the economic system of the whole country of the Great Wei Dynasty, and the original system is the old regulation of "one catty and sixteen taels", and the people in the Great Wei are generally accustomed to this method, and now, he Zhao Hongrun suddenly withdrew from the new regulations of "one catty and ten taels", not to mention whether it will be opposed by many people for the time being, and what is even worse is that once the new regulations enter the market, it will inevitably cause chaos in the market of the Great Wei.

It is even highly likely that some black-hearted businessmen will take advantage of the old and new regulations to make ill-gotten gains, and in the end, it is often the ordinary people who suffer the most.

Thinking of this, Zhao Hongrun said to Wang Fu and the craftsmen who were watching around: "Maybe you can't understand why this king made such a regulation, it should be the willfulness of this king. …… However, as Wang Jucheng said, because the new regulations may lead to chaos in the domestic market, therefore, the new regulations will not be implemented to the six departments and twenty-four for the time being, and will only be put into use in our smelting bureau. ”

Saying that, Zhao Hongrun immediately went to the blacksmiths of the Smelting Bureau to build accurate "two", "jin", "jun" and other scales (weights), and asked to build one tael, two taels, five taels, one catty, two catties, five catties, one jun, two jun, five jun and other units, and properly kept them in the smelting bureau after being made as a basis for the future.

After that, Zhao Hongrun went back to formulating the standard of "quantity", that is, the volume standard.

In the Great Wei Dynasty, there was a certain amount of confusion in the formulation of "volume", such as the stone (dan), which is obviously a unit of weight. However, the ancients stipulated that "10 buckets = 1 stone", and the stone became a volume unit again, which made the units of volume and weight in ancient times chaotic to varying degrees.

And this is exactly what Zhao Hongrun hopes to eradicate, he wants a clearer list of volumetric units of measurement.

As for the actual measure of volume, the ancients have always used rice as a measure. But Zhao Hongrun did not use, he is still accustomed to using water, after all, using rice or yellow rice as the physical object of measuring volume, it is easy to make errors, and water can ensure that the error is reduced to the greatest extent.

Of course, by water, we mean pure water at room temperature.

Following the way he remembered the density of water, Zhao Hongrun also planned to link the conversion of weight and volume to pure water: the unit volume that can hold one pound of pure water is specified as liters. "Note: Worth about 0.5L."

At the same time, it is stipulated that "1 bell (kettle) = 10 Hu = 100 buckets = 1,000 liters = 10,000 he".

"Note: Because the ancients used to measure the volume with rice. The density of rice is 1.8 and the density of water is 1, so it can be said that the Susheng system is about half of the original volume.

But the difficulty is that it is not so easy to create a vessel that can hold exactly one liter of water. In this way, it is necessary to accurately create a container representing the standard unit of the bell, the hu, the bucket, the sheng, and the he, which represent the susheng system. It's not that simple, even if it's Zhao Hongrun. It also took a lot of calculations to come up with the utensils.

Fortunately, the volume of the Susheng system is almost half of the old Shengsheng system, so the craftsmen of the Smelting Bureau can also use this as a basis to create the precise utensils required by Zhao Hongrun.

But by the same token, the Su Sheng system is also not suitable for the current launch, after all, the "sheng system" is most commonly used to sell rice grains in the market. The sale of rice and grain on the market is still not calculated according to weight, but based on liters, buckets, and hu, so there will be black-hearted businessmen who secretly create non-compliant small husks for selling rice and grain. Take advantage of this to make huge profits.

In order to put an end to this phenomenon, Zhao Hongrun plans to find a way to change Wei Min's habits in the market in the future, abandoning the volume unit and using weight as the basis for buying and selling rice grain, meat and other daily necessities.

At present, whether it is Su Jin or Su Sheng, it is not suitable for the current market, and can only be temporarily circulated in the Smelting Bureau, but Zhao Hongrun can foresee that the standards he formulated will gradually be accepted and gradually replace the old weights and measures.

However, this process requires a certain amount of time and patience, and can only be carried out gradually, and if it is forcibly launched, it will cause chaos in the economic market of Dawei.

But in any case, the new weights and measures formulated by Zhao Hongrun, that is, the so-called "Su's New Rules of Weights and Measures" in the mouths of the craftsmen of the Smelting Bureau, were also presented to Wei Tianzi's dragon case as soon as possible.

Looking at the many iron stones and utensils placed on the dragon case, I believe that if Zhao Hongrun is here, he will be surprised, although he has created several sets of original weights and measures standards, but they all ordered the people of the Smelting Bureau to keep a close watch, but they did not expect that they were still obtained by the people of the inner guard.

And it is also the Su Jin system and Su Sheng system utensils that Zhao Hongrun does not plan to launch for the time being.

"Hmph, it's smart, and it's not pushed to the court and the opposition, but it'...... Why do you have to set standards like this?'

Wei Tianzi held up one or two iron stones with great interest, and then looked at the rest of the weight of the iron stones on the dragon case, thinking in his heart.

"It doesn't look like a scale used on a scale (rod scale......"

The three ministers of the Chinese book also came around, and Lin Yuyang was even more interested in pinching up an iron stone engraved with the small characters of "Yi Tael", and was secretly surprised by the exquisite workmanship of this weighing stone.

From the side, Yu Ziqi looked at the many different specifications of iron on the dragon case in surprise, and muttered: "One tael, two tael, five tael...... Hey? ”

He was amazed to find that with these three specifications of iron stones, it was easy to combine them and calculate all the weights within ten taels: "One two is three, two two is four, one five is six, two five is seven, one hundred and twenty-five is eight, two hundred and five is nine, and five five is ten...... Interesting. ”

Hearing Yu Ziqi's muttering, Wei Tianzi, Lin Yuyang and the others would also come to their senses, and they thought about it in their hearts with great interest, and the result was really as Yu Ziqi said, looking at the inconspicuous iron stones, after the combination, they actually wrapped all the weight within a pound.

This made Wei Tianzi, who was originally not impressed with the "Su's New Rules of Weights and Measures", gradually realize the deep meaning of this statement.

It is undeniable that even Wei Tianzi gradually felt that the new regulations were far more convenient than the old regulations, but the problem was that the old rules had been circulating in the Great Wei for hundreds of years, and how could they be replaced by the new rules overnight.

However, even so, Wei Tianzi is still full of expectations for the Smelting Bureau, and he has a hunch that after his son Zhao Hongrun takes charge of the Smelting Bureau, the Smelting Bureau may really have a huge change that will make the world look sideways. (To be continued.) )