"Father, you take two steps forward!" Li Su held a ruler without a scale in his hand, and said to Li Shimin with a smile. Come on,.! This is a small school field in the palace, in addition to their father and son, there is also Duan Lun, who is the secretary of the Ministry of Works, next to him, but looking at his reluctant face, he can guess that he was pulled by Li Su.

"Rokuro, is it necessary for you to do this?" Li Shimin smiled and took a few steps forward, and asked Li Su as he walked. As soon as he got out of the court today, his son entered the palace, and he had to pull him to do some measurements, although he couldn't think of Li Su's intention to do this kind of thing, but it was also a move to leave his name, so he also showed some interest.

"What Your Majesty said is good, and the old minister also thinks that His Royal Highness King Qi is doing this too much!" Duan Lun is not an outsider, and he has a very good relationship with Li Su, so he doesn't care much when he speaks, and he still has a bunch of things waiting for him to deal with in the Ministry of Engineering, so he really doesn't want to accompany Li Su here.

"My father and uncle don't know, it's not that I'm messing around, it's about the future development of industry and commerce, so don't underestimate this matter!" Li Su still explained with a smile.

A few days ago, he and the eldest grandson Wuji reached an agreement on the throne, waiting for the opportunity to push Li Zhi to power, and he also warned the other party, asking him to assist Li Zhi honestly, and never have any other ideas. This made the eldest grandson Wuji feel very angry, but in the end he was still subdued by Li Su's momentum and strength.

However, after dealing with the matter of the eldest grandson Wuji, Li Su had a headache for another thing, and this matter was discovered by chance. I don't see anything now, but it could cause great inconvenience in the future. Therefore, Li Su made up his mind to solve this hidden danger this year.

When Li Shimin walked a few steps on the school field, a series of footprints immediately appeared behind him, and Li Su stepped forward with a blank ruler, measured the distance between each footprint one by one, and then handed it to the person next to him. Let it take an average, and then multiply this average by two, and you get the distance of one step. Here's what to say. In ancient times, a step refers to the distance after two feet are taken alternately, and those who only lift one foot are called stepping down, and two steps are one step.

The person next to you calculates the distance of the step. Mark the blank ruler again, and then cut off the excess part of the ruler, and then handed the ruler to Li Su again, only to see him holding this ruler that has not yet been marked, his face also showed excitement, bowed down and said to Li Shimin: "Father, this is the new length unit of the Tang Dynasty, in order to distinguish it from the current length unit, Erchen decided to call it the imperial step, which can also be called the public step!" ”

Li Su wanted Li Shimin to agree to his next move. In the words, it is a big pat on the other side's ass, anyway, it is just a unit of length, and it is called by meters, and it is also called by steps, and there is no big difference at all.

At the previous Winter Games. Especially in the bicycle race, Li Su accidentally found a problem, that is, the bicycle damaged in the race can rarely be replaced at will like later generations, and there must be a master craftsman who customizes the parts for the lost bicycle before it can be used again.

This discovery made Li Su very strange. After he deliberately learned about it, he realized that the manufacturers of bicycles are different, and each factory has its own specifications, and even the bicycles produced by the same manufacturer have different specifications. This is mainly because the production process of the bicycle is extremely non-standardized, all by an experienced master with a group of apprentices, from the selection of bicycle materials to the final installation and commissioning, all by this group of people are responsible, which leads to the production of each master of the bicycle has slight differences, and it is difficult to use the parts.

For this discovery, Li Su originally wanted to introduce the assembly line work of later generations, but later found that it would not work at all, because there is also the most basic problem, that is, the non-standard of weights and measures. Originally, Li Su thought that since Qin Shi Huang unified weights and measures, ancient China should be unified in this regard, but after understanding it, he found that it was not the case at all.

Speaking of which, our ancestors don't know what to think, such a basic thing as weights and measures, but it has been changed back and forth, although the name may not have changed, but the meaning of the representation has changed dramatically, and even each dynasty has its own weights and measures. For example, take the length unit ruler as an example, this unit was already in the Shang Dynasty, and it was converted to about 20 centimeters in later generations, but maybe the ancient kings did not hook this unit with the imperial power, and each new dynasty was established, and it had to grow a little on the basis of the original one foot, so as to indicate that it was different from the previous dynasty, and by the time of the Tang Dynasty, one foot had reached 30 centimeters. Moreover, the Zhenguan period has only been established for a few decades, and many places are still using the size of the former Sui, so the length represented by one foot may have different lengths throughout the country.

This is true for the simplest units of length, not to mention the units of area, volume, and weight. There is no unified and standardized weights and measures, let alone a unified industrial standard, so Li Su's assembly line is impossible to talk about.

For this situation, Li Su had to start from the most basic aspects, preparing to formulate a set of industrial weights and measures, but this matter must involve the Ministry of Industry, although Li Su and Duan Lun have a good relationship, but in this kind of matter, but they are not sure to persuade the other party, so they put the idea on Li Shimin, and the length unit is standardized according to the other party's step, so there is today's scene.

"Your Highness, our Datang already has weights and measures, and the people have already adapted to it, so there is no need to use a new set of weights and measures!" Duan Lun still objected, he mainly considered that the current weights and measures have been accepted by most people, and if another set is rashly introduced, it may cause chaos in the market and cause unnecessary trouble to their Ministry of Industry.

"Uncle, you misunderstood, my set of weights and measures is not for the people, but for industrial production, and it does not conflict with the original weights and measures." Li Su explained with a smile. He said that this situation is very common, for example, in later generations to buy things, although the standard unit of weight is the kilogram, but the Chinese people still generally use the unit of the city catty, which does not have much impact.

"Then I can't figure it out, so why not just use the original weights and measures in industry?" Duan Lun asked.

"Uncle, don't you find that the original weights and measures are too complicated, take the unit of weight as an example, there are baht, two, jin, jun, stone and other units, and the carry between them is very complicated, including twenty-four baht for one tael, sixteen taels for a catty, thirty catties for a jun, four jun for a stone, these units are not the same, the calculation is very complicated, and the unit of measurement and quantity also has this problem, industrial production needs to use a large number of calculations, the old weights and measures can not meet this requirement at all, That's why I had to come up with a new set of weights and measures......"

Li Su said this, he thought of the weights and measures briefly introduced, in fact, it is very simple, most of them refer to the units of later generations, such as length units have steps, minute-by-step, centimeter step, milli-step, etc., and they are all based on the decimal system, in fact, the meter of the later generations is replaced by a step, and the distance of a step is set as the length of Li Shimin's step. With the unit of length, the volume is easier, as long as the concept of the cube is introduced, as for the weight, Li Su multiplied the Tang Dynasty by two, named the kilogram, the reason for this, is that the Tang Dynasty's kilogram is too small, it is very inconvenient in the calculation of some industrial products, a thousand kilograms is a ton, a kilogram is equal to ten centimeters and so on,

Between these units of weights and measures, the decimal system is uniformly used, and the original quaternary, octal, hexadecimal, and even 24-based systems are all thrown away, making the calculation much easier, and in order to make industrial production easy to calculate and improve accuracy, some large units and small units are specially added, such as tons, millisteps, and so on.

After listening to the new type of weights and measures introduced by Li Su, Li Shimin and Duan Lun also fell into contemplation, although they have long been accustomed to the old-style weights and measures, but I have to say that this set of weights and measures proposed by Li Su is indeed more easy to understand, after all, they are all unified decimal system, and if you understand one, the others will naturally understand.

"Duan Qing, what do you think?" Li Shimin pondered for a while, but he did not take the lead in expressing his position, but asked Duan Lun's opinion first.

"This ......" Duan Lun was also hesitant for a while, he clearly knew that the new style of weights and measures was indeed much more convenient than the old one, but when he thought of promotion, he had a headache, Datang is so big, even if it is only promoted in industry, it is enough for him to be busy.

"Uncle, in fact, it is not difficult to promote the new weights and measures, especially in industry, as long as the Ministry of Industry issues a formal article, the new weights and measures are released, and all industries under the Ministry of Industry must be used, and then I will persuade various industry associations to take the lead in promoting in the industry, so that the official and private have a reference example, and other industries will not be able to change when they want to!" As soon as Li Su saw Duan Lun's appearance, he immediately understood what the other party was worried about, so he immediately opened his mouth to persuade.

Duan Lun heard that Li Su actually took the initiative to help him share a lot of work, and he didn't have any worries at the moment, and immediately clapped his hand and said: "Even so, the old minister has no opinion, but weights and measures are very important, Liulang, when you promote, you must be cautious, and you must not be brutal!" ”

For Duan Lun's instructions, Li Su naturally nodded and agreed, in fact, he didn't need to be reminded by the other party at all, Li Su also knew that weights and measures were very important, and the promotion of weights and measures was not a matter of one or two days, he had long been ready to fight a protracted war.

After agreeing on this matter, Duan Lun made an appointment with Li Su to discuss in detail, after all, the two wanted to work together, so they naturally had to communicate further, and then Duan Lun hurriedly returned to the Ministry of Engineering to be busy with his business. And Li Su accompanied Li Shimin for a while, and then he was about to leave, but before leaving, he borrowed something from Li Shimin. (To be continued.) If you like this work, you are welcome to vote for recommendation and monthly passes, and your support is my biggest motivation. )

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