Da Chu's first iron ruler, Zhang Tan didn't take long, but the first vernier caliper took a long time, and under the guidance of Renault, Zhang Tan also took two full days.

Don't look at the vernier caliper and the iron ruler seem to be not much different, if you want him to understand, it is really not ordinary. After the construction was completed, looking at Zhang Tan like a child, measuring everywhere, Renault also had a little sense of accomplishment.

They are all measuring tools, which seem simple, but the gap can be measured by time, and the difference is thousands of years, or even longer. No one knows when the first ruler appeared, at least BC.

The first vernier caliper in the true sense of the word was only made in 1851.

The unearthed Han Dynasty caliper, is there a scale, do you believe that it can produce an accuracy of one-tenth of a millimeter?

Zhang Tan's excitement came from the first experience of using tools to measure accuracy that is difficult to distinguish with the naked eye. In fact, he knows that this vernier caliper is of little use to him, and he can see it with his eyes, but others can't.

After Zhang Tan's excitement passed, Renaud opened his mouth and said, "Zhang Tan, do you know chain mail?"

Zhang Tan heard this and shook his head: "I haven't heard of it." ”

Very good, Da Chu doesn't have chain mail yet. He really doesn't look down on Da Chu's heavy armor, he uses a lot of materials, the weight is heavy, but the defense efficiency is average, he can't wrap it in many places, and it hasn't developed into an iron can.

The iron can plate armor, Renault also can't look down on it, wearing that thing, it is difficult to walk, and he is not ready to go to the battlefield, so he sets his sights on the lighter chain mail.

"A very simple kind of armor is to make a lot of small iron rings out of metal, and then wear these iron rings together to make clothes in a similar way of weaving. As he spoke, Renault took out the picture he had drawn a long time ago and showed it to Zhang Tan.

There are several drawings, including full-body chain mail, half-body ones, and enlarged renderings of chain mail.

The principle of chain mail is very simple, Zhang Tan can understand it at a glance, but such a little iron ring, the bearing capacity is too small, but it can prevent arrows, but can it withstand the strength of a strong bow?

Raising his head suspiciously, he looked at Renault: "Sir, this kind of armor is a novelty, it's just ......"

"Say whatever you want, don't be afraid. Renault saw it, and after getting along for a few days, Zhang Tan was even more afraid of him, and he didn't dare to speak loudly in front of him.

"The iron ring is too small, even if it is linked one ring at a time, the bearing capacity is limited, not to mention the big Chu halberd, even the horizontal knife may not be able to prevent it. At least two stone bows are used on the battlefield, arrows can split stones, such armor is good-looking and useless. Zhang Tan said in embarrassment, Mr. is amazing, but you can't think of a brain, think of a play.

The sword has no eyes, and the armor is a life-saving thing, so it's not okay to mess around.

"Come and see this thing. Renault took out a miniature version of the Flying Ox Armor, which was refined during the original experiment, and it has not been melted, and it was used as a sample.

"This?" Zhang Tan held in his hand, feeling the difference in metal, but he didn't know what Renault meant.

"Smash with a hammer, how hard you use it. "If you don't understand, then try, Renault didn't want to explain to him what non-Newtonian fluids are.

After a few hammers, Divine Craftsman Zhangtan's eyes were straight, and he could feel the change in the touch of the hammer head, when the hammer head touched the armor, the armor that seemed to have been deformed suddenly became hard, and there was a rebounding force, which almost made him unable to grasp the sledgehammer.

After trying it, Zhang Tan was served, and there was such a strange iron, and then I could understand by looking at the picture drawn by Renault, Mr. This is uncomfortable to wear heavy armor.

If chain mail is made of this metal, unless it is struck with a sledgehammer, the Chu Halberd horizontal knife will not be able to hurt, let alone the bow and crossbow. Or use a battering crossbow to hit the person in the armor directly.

After thinking for a moment, he knew in his heart: "Sir, this chain mail is not difficult to build, but it is more troublesome, and it may take a long time." ”

"It's okay, just build it slowly. "I'm not in a hurry to wear it anyway, in fact, what Renault wants is the kind that can be worn under the coat.

In the end, Renault still lacks a sense of security, and always feels that there is no protective armor, and it is easy to have problems. Even if he crosses over to the Great Chu world, he wants to live well.

Sent away Zhangtan, and went to visit Tiger Mei'er, this girl has been in a daze for several days, and she is terrified of the new task given to her by Renault. Three golden ginseng, Mr. actually let her refine it into the Heavenly King Life-Saving Pill, this is crazy.

In the past few months, Hu Mei'er has refined countless green ginseng and red ginseng, and there are more than a dozen red ginseng plants that she has eaten, but she still feels dizzy when she uses golden ginseng for alchemy.

It has been three days since the golden ginseng was in her hands, and the crockpots used for alchemy have been carefully selected, and the best one has been selected among the thousands, but she just doesn't dare to start.

The gentleman didn't care, and told her to let go of the refining, even if the refining was all wasted, it would be fine. But the tiger sister can't stand it, this is golden ginseng, and a few ginseng whiskers can make her flesh hurt for a few years.

"Tiger sister, don't think too much, just let it go and refine it, and you should pay the tuition. Renault persuaded, he didn't know how to persuade it, this girl was enchanted, she was dizzy when she saw the golden ginseng, and she didn't even dare to touch it, Renault was already thinking about it, if she really didn't dare to do it, she would refine it herself.

The problem is that Renault feels that he is even more unreliable, except for the beginning of refining a few furnaces of green ginseng, they are all handed over to Hu Mei'er, who is an expert in alchemy.

"Sir, this is golden ginseng. Tiger Mei'er looked melancholy.

"Lian, don't care what kind of ginseng it is, you just treat it as an ordinary green ginseng, I'm here to watch you practice. Renault felt that he couldn't put it off any longer, he still had work to do for Tiger Sister. The number of people around him is increasing, but when it comes to the level of trust, it is still the highest among the three Hu family.

Huya didn't dare to leave his side, the Tiger King had already been sent out to continue picking ginseng, and the next job, Tiger Sister was the most suitable.

"Okay, I'll practice, if the refining is broken, Mr. will kill me. The tiger girl gritted her teeth, and her tears were about to fall.

Golden ginseng, no matter where it is found, it must be tributed, and it is a capital crime to intercept golden ginseng in private. Of course, this is only the law of Da Chu, and it can't be controlled by Mr. Even many people will intercept it privately, make a fortune, golden ginseng is fate, who is willing to pay tribute.

Not only are the clay pots carefully selected, but even the charcoal used is picked out one by one, and the charcoal is lit to carefully control the fire.

In order to relax her, Renaud took the initiative to ask: "Sister Hu, what are your plans for the future? What do you want? What kind of husband do you find?"

The first two sentences are okay, but at the mention of her husband, the tiger sister blushed, and the nerves that had collapsed were relaxed: "Sir, ......"

This is the first time Renault has seen the tiger girl coquettish, and it turns out that this girl is not as strong as she appears. After her father's death, she dared to provoke the gang and dare to take the golden road. gave her the work of alchemy, never sleepless, and dared to open eighteen furnaces at the same time......

After all, it's still a seventeen-year-old girl, it's really not easy.

"What's this, the girl's family, sooner or later she is going to get married, don't hold on, there is a gentleman, what kind of marriage do you want to marry, Mr. will help you choose, if you are not satisfied, let him go, and tie him up if you are satisfied." Renault said with a smile.

For the three members of the Tiger family, he is not so familiar with Tiger Sister and Tiger King, and even the time they have been together has not been as long as that of Luo Yi, but there is a kind of recognition from the heart, and it really feels like a family.

"Sir, let's help Uncle Wang marry a wife, after Aunt Wang went, Uncle Wang didn't talk much. ”

"This naturally doesn't matter, whoever falls in love will smash it with ginseng, and if you can't smash it, send Li Si and Chu Rui to grab it. Renault continued to tease the tiger girl.

Hu Mei'er finally smiled: "Mr. is not that kind of person, Uncle Wang likes the women of the Gu family, he can't be too young, and it doesn't hurt if he has married someone." ”

"Don't always talk about him, what about you?" Renault was interested, the tiger king's wife left early, and he didn't even have a child, guarding the tiger sister and the tiger teeth, as his own pain.

"Sir, people are still young, don't worry. ”

I don't know if I think that the refining of a furnace of Heavenly King Life-Saving Pill has been completed, maybe because Renault is by his side, and Tiger Sister is more confident, or maybe it is this kind of family-style chatter that makes Tiger Sister more relaxed, and the first furnace is refined.

Tiger Sister was a little excited, and Renault was even more relieved, he originally planned that it would be good to make three plants into one furnace, which was no longer a loss.

The Heavenly King Life Preservation Pill is naturally not as good as fresh golden ginseng, not to mention one, even if there is a gap in ten, but the preservation time of golden ginseng is too short, and the medicinal effect will decline after a year, and it will not change much for decades when it is refined into a pill, and the longest can even be stored for a hundred years.

Renault still has a golden ginseng in hand, which is handed over to Gong Churui for safekeeping, after all, the value of the golden ginseng is too high, and it is in the hands of Huya, Renault is afraid of causing trouble to him, Huya is only a fourth-order martial artist after all, and his strength is too poor.

The mood was relaxed, and the second furnace was made again, which made Renault impressed, he knew that Hu Mei'er was extremely talented in alchemy, but he didn't expect it to be so powerful.

Excited, the last furnace was scrapped, which made Tiger Mei'er very frightened, and Renault repeatedly comforted her, although she was relieved that she had done a very good job and had exceeded her task.

Next, Renault has never been stingy, although golden ginseng is rare, as long as he is willing, the God of Wealth can always help him find it.

Zhu Chongjiu has three, Yang Feng, and Luo Yi have one each, but in fact, there are only five pieces he wants to give away. The Heavenly King Life Preservation Pill is good, but it is precisely because it is so good, people with insufficient status, it is inconvenient for Renault to send it, and they dare not accept it.

In private, Renault also prepared one for each of the Tian brothers, and this matter cannot be said.

After hesitating for a moment, he took out three more and put them in the gourd: "Give these three to Yihe, how can I say that I am also the princess of the empire." ”

Hu Mei'er silently took the gourd, her face was a little strange, and there was a little pity in her eyes.

She is a person who understands, needless to say, the three of General Zhu sent it, it is sent away, whether it is because of favors or other reasons, it doesn't matter.

But the ninth princess is the lady's maid of the husband, and giving her three pieces is a bit estranged.

In terms of closeness, the three of the Tiger family are the closest, but Renaud didn't mention it, does it need to be said here, his own family, is it not divided, and he asks Mr. for good when he needs it.