Just when Wang Xiaoyi and Gao Xiaoer changed a saw blade and continued to saw, Li Zhongyi lowered his head and began to think about a solution at the sound of sawing.

First of all, the tool for drawing ink lines is easy to do. Li Zhongyi's family has a lot of special charcoal, which is when he designed the divine arm bow and drew drawings in private, he ordered the bottle to lead the maid at home to grind it out.

Anyway, Li Zhongyi has no next generation, and many maidservants in the family don't have much work except cleaning, and most of the time they are idle chatting or embroidering handkerchiefs.

Before Li Zhongyi made the white soft linen paper, he always carried several bottles and white silk hand-embroidered hand-embroidered by peony in his big sleeves.

Now, naturally, the shotgun has been replaced by a cannon, and Li Zhongyi is tired of his eyes, and a handkerchief wipes both his mouth and sweat, not to mention how disgusting it is.

Well, there are also some problems with short saws, how to change to a long iron saw operated by two people, the work efficiency should be greatly enhanced, right?

Thinking of this, Li Zhongyi's eyes couldn't help but light up, yes, in the shed of the arrow workshop, he has never seen a trace of a long iron saw, obviously, even if this tool has been understood, it should not be promoted in the government-run enterprises.

As soon as Li Zhongyi remembered that the quality of the saw iron was not good, once it overheated, it would easily break off, and he felt that his head hurt very much.

Is it still necessary to make steel?

If there is enough time, Li Zhongyi can consider rebuilding a new steel-making furnace to make good steel.

Now, the entire task of making arrows is at most a month, and I am afraid that Li Zhongyi's new steel-making furnace has not yet been built, and he has already been dismissed. I went home to take a break from cooking.

Although the arrow workshop is poorly managed and the work efficiency is low, although the sparrows are small, they have all five organs.

It's not far from the shed. There was a small steel-making furnace, Li Zhongyi walked over to take a look, the furnace was still hot, and the charcoal and iron ore were piled up like a small mountain, but none of the blacksmiths were seen.

Li Zhongyi let out a long breath, this trick played by Zhou Chong. It's just too ruthless, this is directly going to cut off his roots.

If you are not an expert, you will be beaten, the same is true in ancient and modern times!

Li Zhongyi knew very well in his heart, and now he would go to Zhou Chong to ask for a blacksmith. It will only delay the work, and it will be of no use.

Instead of waiting for it, it is better to figure out a way by yourself, Li Zhongyi thought of this, turned around and went back to the official hall.

Li Xiaoqi knew Li Zhongyi's habits, so he hurriedly took out charcoal pens and white linen paper from the crotch bag he carried with him and put them on the bookcase.

Li Zhongyi pinched the charcoal pen. On the paper, there are a few urgent things that need to be done right away: long saws, charcoal pens, fine steel. The feathers attached to the tail of the arrow, the stone mill that rounds the shaft of the arrow.

There are molds for iron arrowheads, but the problem is that the blacksmiths are gone.

That's all he can think of for the time being. As for the unexpected, we can only explore it in practice.

Well. The moment Li Zhongyi stopped writing, he suddenly thought. To draw a drawing or draw a line, you need to use a ruler first.

The ruler, which is the first important tool for standardized production, is indispensable!

"Xiao Qi, go and see, is there a ruler in the shed?" Li Zhongyi had a feeling of disrupting the battle, but there was no good way.

Who asked him to choose the discipline of Chinese medicine instead of the major of construction machinery when he was in college?

Li Xiaoqi looked for a big circle in the shed, but he didn't find a ruler, according to the situation asked by the craftsmen he found, everyone relied on their existing experience to operate, and they had never heard of the ruler at all.

Li Zhongyi shook his head secretly, he once watched a documentary "The Resurrection of the Army", the ancient relics unearthed in it, introduced very clearly, as early as a thousand years ago in the Great Qin Empire, standardized production has become popular.

The Qin crossbow is very powerful, it is a magic weapon for the Qin State to deal with the grassland barbarians and the six countries of the Central Plains, according to the introduction of "The Resurrected Legion", the error of each Qin crossbow arrow is almost negligible.

Thinking of this, Li Zhongyi couldn't help but secretly shook his head, the standardized operations that the ancestors had mastered thousands of years ago had degenerated to the point that they didn't even have a standard ruler in the Zhou Dynasty.

It is conceivable that the exclusive respect for Confucianism, everything is inferior, only the idea of high reading, and the results of the application of engineering science and technology from the root, how much of an obstacle has been played in the upgrading of ancient Chinese science and technology?

Where can I find a reference scale? Li Zhongyi fell into the long exam.

Due to the northern Central Plains, which has been in a period of war for many years, the city head often changes the banner of the king, and many of the standards of some measuring tools in the Tang Dynasty have been lost, or no one has considered sorting them out at all.

Because of the fact that there is little attention to it, the government does not pay attention to the standardization of the ruler, as long as the visual inspection is relatively straight, it is fine.

However, the government attaches great importance to the volume units of grain, such as liters, buckets, and stones, when it comes to vital tax interests. In front of each county yamen, there are standard measuring tools stamped with official seals as a benchmark.

Of course, in the actual operation process, the big bucket collects grain tax, and the small bucket is handed over to the official warehouse, and similar damage to the public and private interests is not uncommon.

Li Zhongyi personally inspected the feather arrows that had been made, and there was an amazing appearance. The length of each arrow varies, and even if it is visually inspected, there is a large difference.

Most of them are about a few centimeters apart, longer than the first knuckle of Li Zhongyi's left hand, obviously, there is no concept of standardization at all, and it is roughly the same, so it will be fooled.

This is the same as the record of China's war history, which has an inaccurate problem. For example, in the history of warfare, there are often cases in the history of killing the enemy without counting.

This is not calculated, whether it is thousands or tens of thousands, it will take later generations of historians to boil their brains to guess.

With that, Li Zhongyi's mind flashed with inspiration, the standard rulers in other places are likely to have a big error, and the cloth rulers used by the cloth merchants who sell cloth should be the most accurate rulers.

Thinking of this, Li Zhongyi was worried that Li Xiaoqi didn't understand the importance of standards, so he simply took Wang Xiaoyi, left the arrow-making workshop, and rode a carriage straight to the cloth shop in a nearby town.

Before leaving, Li Zhongyi left Li Xiaoqi and Li Xiaoba at the scene, and carefully told them to guard the shed. Whoever dares to act recklessly except kills people, they are at their disposal.

Li Zhongyi currently has such a small belongings left, and if Zhou Chong and Sun Daqing are allowed to secretly make a few ghosts, I really can't stand it.

After arriving at the cloth shop in the town, Li Zhongyi walked slowly into the store. A guy nodded and trotted over, and while saluting, he asked Li Zhongyi enthusiastically: "Official, what do you want?" There are all kinds of good fabrics, as well as fine silk and satin, and even the rare Shu brocade has ......"

Li Zhongyi took a turn in the shop. Pointing to the thinnest kind of linen, he commanded, "Pull me one foot and three inches of this cloth." ”

"Okay." The guy saw that the business came to the door, and the customers were also very cheerful, and there was no ink at all. Very happy, he tore open the roll of linen, dragged it to the marking on the counter, and began to measure the length of the cloth.

Li Zhongyi bought cloth is fake, but if he wants to see the standard measurement, he walked to the guy's side quietly, staring at this guy's every move with all his attention.

With the actions of the guys, Li Zhongyi appeared. Just above the counter, at the front of the counter, someone drew a long line with a thin ink pen, with a total length of one foot. Below it are inches.

Li Zhongyi noticed that at the inch position, the ink line was slightly thicker. In the whole measurement, the smallest unit, that is, the inch, can only be measured by sight.

The cloth shop guy's hands and feet are unusually nimble. He tore open the roll and put the head of the cloth slightly. Then, it's on top of the ruler. Begin to measure the cloth one by one.

Li Zhongyi noticed that every time he changed to a foot of cloth, the guy in the cloth shop would deliberately use the thin nails of his thumb to hold the measured cloth.

As he rolled the cloth, he used the nails of both hands to take turns jamming the measured foot of cloth, and then, while the hand was changing, the thumb of the left hand would replace the thumb of the right.

Li Zhongyi thought to himself, if it weren't for the special need for standardized measurement, according to the guy's method, he could barely perfunctory.

After the guy measured one foot three feet eight inches of linen, he deliberately put two or three inches of cloth forward, obviously, it was a small bargain that was deliberately given, so that Li Zhongyi, who bought the cloth, felt more comfortable.

"Alas, I suddenly forgot about it, I lost the ruler that my Hun family used to make clothes, I don't know if your store has a cloth ruler to sell?" Li Zhongyi deliberately made up a story to see if there was anything like a cloth ruler.

Who knows, the guy spread his hands and said: "Don't hide it from you, the small shop is a sitting Jia, but there is a ruler, but there is only this one, and there is no way to borrow it from you." ”

"Can you borrow it from the next view?" Li Zhongyi naturally couldn't come for nothing.

The guy hesitated, took a ruler from the drawer, and handed it to Li Zhongyi.

Li Zhongyi looked at it intently, this is really a simple ruler, even if it is visually inspected, the error between inches is amazingly large.

According to Li Zhongyi's observation, the scale drawn on the counter of this cloth shop is still somewhat reliable, at least the distance between inches and inches is relatively uniform, and the difference is relatively subtle when viewed with the naked eye.

Li Zhongyi pondered for a moment and decided that he couldn't come empty-handed, so he pulled out a piece of twine from the sack he bought.

Just when the guy was a little suspicious, Li Zhongyi put the thin twine on the counter and ordered his entourage to straighten the ends.

The guy thought that Li Zhongyi wanted to draw a line ruler and take it back to make clothes for the Hun family, so he happily watched Li Zhongyi do it.

After the entourage tightened the thread, Li Zhongyi took a thin charcoal pen and dotted the black dots on the twine one by one according to the marks of the counter cloth ruler.

The distance between the two small dots represents one inch, which is Li Zhongyi's understanding.

Time was very tight, and Li Zhongyi rushed back to the arrowmaking workshop non-stop. On the way, he instructed his entourage to buy some good dishes, especially meat.

Whether it is the old, weak, sick or disabled, or incompetent craftsmen, Li Zhongyi can only rely on these people's initiative at present.

After returning to the arrow-making workshop, Li Zhongyi found Wang Xiaoyi, handed him the scale twine drawn from the cloth shop, and asked him with a smile: "Can you make a straight ruler according to this size?" ”

Wang Xiaoyi carefully looked at the twine in his hand for a while, frowned and said, "I'm afraid I can only draw one side, and the other side is difficult to align with it." ”

Li Zhongyi thought about it carefully, what Wang Xiaoyi said was right, in other words, even if a ruler was made according to the scale of twine, it could only use one side, and the other side could not be aligned.

The reason is actually very simple, there was no precise vernier caliper in this era, or a standard ruler with a type of nature, so as to form a right-angle relationship with the old ruler. (To be continued)

ps: Hehe, the brothers are really powerful, Leng is before the transfer point, after 311 monthly passes. Sikong saw several good brothers, and one person smashed two votes, and even three votes.

Brothers, Sikong is not a bad thing, the promise will be fulfilled, five more sent, thank you for your trust in Sikong, as a whammy!

Tips: The new domain name "biquge.info" has been launched by Biquge, and the original domain name is about to be discontinued. Please tell each other, thank you!