-white stones."What is this"Li Yuxiang looked at the stone suspiciously.Once, while helping her father review imperial edicts, she heard that during famine years, people would use Guanyin soil as a su..."For example, making gears, pulleys, and bearings," Yang Lin said.

Nowaday's watermills are made of wood and have poor precision, which leads to a low energy conversion ratio and low efficiency.

...But if you simply replace two parts with metal, the efficiency of the water mill can be increased by at least 50%! And it will also be more durable.

The iron tools of the Great Qin Dynasty were almost all wrought iron, with insufficient purity and ductility. Therefore, iron-making technology must be further innovated.

All the women, however, were stunned upon hearing this.

Gears Pulley

They had never heard it before.

Yang Lin said: "Materials and energy are the foundation of industry, and the development of industrial technology is limited by materials and energy."

Just know that when you get these things done, they'll be very useful in the future!

He hadn't yet said what the biggest purpose of smelting iron was.

Even if they were to hear it, they wouldn't understand, and they couldn't possibly comprehend the importance of metal smelting right now.

For example, cannons and muskets, with the current smelting technology of the Great Qin Dynasty, it's impossible to achieve!

The women discovered that Yang Lin's secret wasn't anything exciting, it was just blacksmithing. Suddenly, they all lost interest.

After watching for a while in the small courtyard, they lost interest and left one by one.

In the end, only Li Yuyao was left.

"Are you looking to forge weapons"

Li Yuxiang directly asked.

Yang Lin's heart skipped a beat. He neither admitted nor denied, but countered with, "Why would you think that"

Li Yiyue said, "In your house planning, you particularly emphasized safety. Now that you've improved iron smelting, it should also be related to safety. Besides weapons, I really can't think of anything else iron smelting could be used for."

Yang Lin smiled, without confirming or denying.

"I just don't understand, why are you so concerned about safety"

Li Yuyu looked at Yang Lin in surprise.

She could feel that Yang Lin was particularly concerned about safety.

Because……

Yang Lin looked up and gazed out the window.

He was speaking to Li Yuhua, but more like speaking to himself.

"Only oneself can protect oneself!"

After coming here, he realized that the Great Qian dynasty wasn't very peaceful.

There is no strict rule of law here. Those with power and influence can do whatever they want.

Therefore, Yang Lin was very clear that as his business grew larger and larger in the future, more and more people would set their sights on him!

If you lack the ability to protect yourself, the result is that you will be devoured by those wolves, not even a bone will be left!

Safety, don't rely on others.

Only rely on yourself!

……

The next day, the Zhou family sent people to learn how to make tofu and purchase a thousand sheets.

The eldest sister in charge was at a loss for words and hurriedly asked Yang Lin if he wanted to sell it to the Zhou family

Yang Lin, upon hearing this, replied without hesitation: "Sell it Of course! As long as it's a fair deal, why not turn a profit"

But...

"Big Sister worriedly said, 'We rejected them before, and now we're doing business with them again. Will the Zhou family take revenge on us in the future' "

Yang Lin smiled wryly: "Older sister, no matter if we do business with them this time or not, if he wants revenge, he will take it."

Just like when you get bitten by a dog, the mouth is on the dog's body, and if the dog comes to bite us, there's nothing we can do.

“All we can do is prepare our sticks in advance. When the mad dog comes to bite us, we’ll beat it to death!” Yang Lin clenched his fists.

>In the blink of an eye, days have passed, and it is already the last day of May.

Over the past few days, I have sold two batches of gypsum plaster. My business is booming, with more orders than I can fulfill. In less than half a month, I have already earned over four hundred taels of silver.

However, progress in other areas is still slow!

Over at the iron smelting area, a rudimentary earthen furnace has already been constructed. The iron produced is stronger and more ductile, but it's still not ideal.

On the construction site of the house, the foundation pit had been dug, but Yang Lin did not let anyone continue to dig the foundation. Instead, he was waiting for news from the kiln.

The earthen kilns were already built the day before yesterday. Yang Lin didn't have people fire bricks, but instead planned to fire a batch of cement first!

The entire back mountain, one-third of it is limestone, clay and gypsum are also very common. Yang Lin himself knows the ratio of materials for making cement, theoretically speaking, it's not difficult to burn out cement.

That morning, Yang Lin personally directed the operation, waiting for the first batch of cement to come out of the kiln.

However, the first kiln of cement ultimately failed!

There were many reasons for the failure, and Yang Lin quickly summarized the problems. However, some problems he knew about were not easy to improve.

The industrial system of the Great Xia dynasty was too backward, and even minor errors could affect the final outcome.

The theory is sound; what's needed is continuous trial and improvement.

For Yang Lin, what's lacking is time.

Given enough time, he believed that even a steam engine could be built with just his theoretical knowledge.

The first batch of cement failed, and Yang Lin was still a little disappointed.

Many villagers who watched the spectacle, however, were gloating over the misfortune.

They didn't know what Yang Lin was up to either. Anyway, recently, Yang Lin had been the talk of the village, and naturally, many people started disliking him.

The impoverished villagers, borrowing money and working for Yang Lin, came to admire him more and more.

But those who were already living well, are not yet accustomed to such a change. The poor earn more and more every day in Yanglin.

Even some people, who were originally dirt poor, after working for Yang Lin for a while, could actually afford to eat sorghum rice every meal, and their living standards caught up with theirs.

This made them both envious and jealous.

They can't bring themselves to work for Yang Lin, but they envy him because he's doing well through his job.

Therefore, seeing Yang Lin's misfortune, they inexplicably felt happy.

"I told you so, he's just messing around. He happened to make a tofu dish and thinks he's some kind of expert"

"This Yang Lin kid, after making some money, he thinks he's something special now."

"Yes, I've seen bricks being fired, but I've never seen stone ashes being fired."

The villagers were gossiping about the incident, and the women came over to comfort Yang Lin.

Yang Lin explained to them that it was a building material.

But they still couldn't understand.

Building materials are either bricks, stones, or sand and soil.

And this cement, has never even heard of it.

"It's hard to explain, you'll see once it's cooked." Yang Lin said.

Although he failed the first time, Yang Lin is confident that he will succeed after trying a few more times.

The theory is sound, all we need is time!

"Success! Success!!"

At that moment, someone ran towards them from afar.

Yang Lin was startled.

The second batch of cement hasn't even entered the kiln, how could it possibly be successful

To my surprise, the person who arrived was Wang Gui!

Yang Lin immediately realized that the east wasn't bright, but the west was. It was from the iron refining side, they had finally succeeded! fire now would risk injuring Tie Zhu. He immediately jumped down from the roof and shouted, “Stop!”Behind the house, Zhong Tao and the others, who were hiding, stared in surprise at Yang Lin.This is...