The short videos I watched are from ancient times, and the ancients broke the defense

transparent!

This is actually transparent!

In the sky.

The introduction to the glass manufacturing process is over.

Immediately afterwards.

A modern piece of glass craft appears.

When you see the true face of glass.

Suddenly.

The ancients all exploded!

"It's actually transparent?"

"This is actually made from sand?"

"Oh My God! This is more exquisite than the porcelain from the official kiln!"

"Priceless! It is indeed priceless!"

These country bumpkins in ancient times.

When had they seen such exquisite handicrafts?

For them, if they want to get transparent vessels, they can only use natural crystal!

And it must be of extremely high purity!

Only dignitaries can't. Enjoy!

But even the dignitaries can immediately tell which one is good or bad by comparing crystal with this glass.

"Even the best crystal is not so transparent, right?"

"No! Absolutely not! Even the best crystal cannot penetrate to this extent!"

"This is actually made from sand?"

"hiss! Later generations are right. If we were to make glass in ancient times, we would make crazy money!"

At this moment, no one has doubts about what Tianmu just said. This is indeed a must-have weapon for time travellers! The Tang Dynasty plane. Li Er was also dumbfounded.

"How many handfuls of sand can be used to bake such exquisite utensils?"

"The abilities of future generations are indeed incredible!"

Li Er has never seen such a miraculous thing.

This is simply comparable to the legendary Midas touch!"

"One piece of glass is so magical, but what about the others?"

"Isn’t it true that the steel produced by local steel-making methods is as sharp as clay?"

"What about local cement? What is cement?"

"And what is allicin and penicillin?"

Li Er's eyes are full of expectation!

【After reading about the local glass, let’s talk about a very important material in ancient times-salt!】

【Salt is a vital commodity】

【Of course, in most dynasties, salt is a controlled substance, and smuggling and selling private salt is punishable by beheading.】

【However, although we cannot regard it as the source of the first pot of gold】

【But when you gain military power or separate a country, it is particularly important to be able to make salt.】

【Especially the salt you make will be purer and cheaper than others! 】

In the sky.

Following glass is the second indigenous craft.

It's obviously table salt.

After seeing that he was actually teaching salt making.

Suddenly.

All the emperors were not calm.

Ying Zheng looked a little ugly:"You can actually teach something like salt? Is Tianmu afraid that our country, the Qin Dynasty, will not perish quickly enough? Everyone knows how to make salt, so won't our country, the official salt of the Qin Dynasty, be abolished?"

Liu Che's face darkened even more. :"What's so bad about Tianmu teaching that he actually teaches salt making? If everyone can make salt, our imperial government will lose an important source of finance."

Cao Cao also looked displeased:"Salt is an important weapon of the country, how can we make it? Is the law privately granted to each other?"

Compared with the worries and displeasure of other emperors.

Liu Bei seemed to be looking forward to it

"Higher purity? Lower cost?"

He craned his neck and stared intently.

Why?

Because he exactly fits the situation mentioned in Tianmu - gaining military power, or separatist power!

It is foreseeable.

If he masters this technology, that is A steady stream of money!

The Salt and Iron Dictatorship is a system with a very long history.

It first appeared in the Spring and Autumn Period.

It brought a lot of wealth to the courts of all dynasties.

The Tang Dynasty plane.

When I saw the sky, I was about to start teaching salt production.

Li I can't help but feel a little melancholy

"In this case, wouldn’t the salt and iron franchise be broken?"

"Everyone has learned how to make salt every day. Wouldn’t the imperial court suffer heavy losses?"

Li Er looked worried.

But just when he was worried, he glanced out of the corner of his eye and saw that Changsun Wuji had a calm look on his face.

Li Er asked curiously

"Could it be that the auxiliary machine has a good strategy? Changsun

Wuji twisted his beard and said with a smile.

"Why should Your Majesty be worried?"

"I believe that this salt-making technique will be of great benefit to the Tang Dynasty and will not cause any harm."

Hearing this, it was not just Li Er who was curious.

All the ministers also accidentally understood

"What does the Duke mean by this?"

"That's the opposite, right? The art of making salt has spread widely, and everyone can make salt. It is obviously causing endless disasters, right?.？"

"That is, everyone knows how to make salt, so if they don’t buy the official salt from the court, what’s the benefit?"

"It’s started, it’s started, old man Changsun is starting to pretend again."

All the ministers felt that Changsun Wuji was making a fuss.

However, Changsun Wuji was unmoved by the princes' comments. He smiled at Li Er and said

"What your Majesty is worried about is that after the salt-making technology is made public in later generations, all people in the world will be able to make salt. If things continue like this, the official salt will be unsaleable and the national treasury will be depleted, right?

Li Er nodded and said,"That's right." Changsun Wuji said:"

Your Majesty, you worry too much.""

"Even though the art of making salt is made public, our policy of specializing in salt and iron in the Tang Dynasty is a national policy"

"All salt fields and wells are under the control of the government"

"Even if the people knew how to make salt, what would they do?"

"Could it be that in today's Tang Dynasty, only the government knew how to make salt?"

Suddenly enlightened!

Changsun Wuji's simple words.

Li Er suddenly understood!

That's right!

The salt and iron franchise is exclusive, and the court has a monopoly on salt sales.

Is it relying on technology?

The fundamental thing is to control the source and grasp the production of salt. Raw materials!

In addition, coupled with strict punishments, this will prevent the proliferation of illegal salt.

Changsun Wuji is right.

Now even if the sky reveals the method of making salt, so what?

The raw materials are in the hands of the government.

In addition, coupled with strict Control.

How could the salt and iron monopoly system be turned upside down?

Thinking of this,

Li Er breathed a sigh of relief. Changsun Wuji was right. The public disclosure of salt-making techniques has many benefits for the government.

A harm!

And it’s not just salt production.

If the technology such as steel making is disclosed, it will be the same!

【According to the source of production, salt can be divided into: sea salt, well salt, lake salt, rock salt, etc.】

【If you want to prepare it in large quantities, sea salt is recommended first.】

【The method of making salt is basically the same and very simple】

【specific method:】

【Introduce seawater brine) into salt pans】

【The so-called salt field is a shallow pool that stores seawater (you can take advantage of high tides). It is evaporated by sunlight and turned into brine. When it reaches a certain concentration, it precipitates and crystallizes. This is coarse salt.】

【If you are short of money, you can just sell the salt in this step.】

【But if you want to further purify and conquer the industry, you need to take a small amount of fresh water and add the coarse salt prepared above to make it a saturated salt water】

【It is precipitated and filtered first, and then the filtrate of plant ash is added to remove excess calcium ions, etc.】

【After precipitation, filtration and sunlight crystallization again, the quality of the salt obtained will be much better.】

【If your capital is stronger and you have a certain foundation, you can combine it with modern industrial purification methods.】

【Also, first take a small amount of fresh water and add the coarse salt prepared above to make it a saturated salt water.】

【First precipitate and filter it, add hydrated lime liquid, then add soda ash liquid (excessive amount), and then filter and crystallize it.......】

——"Thank you, you taught me very well. I am already beheading you."

——"That's very good. It's a tutorial that leads directly to Caishikou."

——"Collect it first and look at it again after traveling through time."

——"Smuggling a stone of salt is punishable by death! Good guy, teach this, do you want me to die?"

——"Hot knowledge: There was no salt and iron monopoly in the Eastern Han Dynasty. Theoretically, you could sell salt freely throughout the Three Kingdoms, but of course it had to be guaranteed by force.]"

——"Very good, I'm going to travel through time and become Liu Bei!"

——"In fact, if the technical level is relatively primitive, adding soybean juice to salt soup is a good way to deal with heavy metal ions."

Tianmu explained the technology of making salt.

In addition to text explanations, videos were also used to list the process in detail.

I was afraid that the people in front of the screen would not be able to learn it.

Making salt is not difficult - this is originally It is basic chemical knowledge.

It can be said that after seeing the process described in the sky, almost most of the ancients have initially mastered how to make salt.

Then it only takes a few practical operations.

"Making salt is so easy?"

"Am I stupid, Hai? Can salt be made from sea water? Doesn't this mean...."

"Get rich! I'm going to get rich!"

"......Brother, are you crazy? So what if you learn it? Do you dare to make salt? This is the sin of beheading!"

"Ah this......"(To read exciting novels, go to Feilu Novel Network!)

"Then aren't we happy in vain?"

"We are not happy in vain. There is such a more refined method of making salt, and the cost is lower. I believe that in the near future, all the salt sold by the imperial court will be sold to us.It’s fine salt, and it’s cheaper!"

It's just as the people expected.

When they saw that the salt-making method introduced in the sky can produce more fine salt, and the cost can be lower.

Emperors of all dynasties and generations ordered people to take note of it.

After the test It will be greatly promoted.

Whether future tests will be cheaper is unknown.

But one thing is foreseeable.

In the future, the quality of tests that people can eat will be greatly improved.

"Methods like this for making salt are what our Tang Dynasty needs."

Li Er looked at the sky[]

I feel like I have gained a lot.

A method of making glass, a method of making fine salt.

A short video.

The progress bar is not even halfway through.

There has already been a lot of receipts.

So what’s next?

What other future technologies can they use?

And just when Li Er was curious.

The content on the marquee is still playing

【Homemade steelmaking:】

【You only need to master simple indigenous blast furnace iron smelting and heat storage technology, refractory brick technology, and coke technology, so that you can have steel production that beats all the forces at the same time.】

【There are two low-tech steelmaking ideas below:】

【1: Blast furnace + furnace】

【The function of the blast furnace is to heat the iron in the iron ore to above 1600 degrees Celsius to melt it into a liquid state】

【However, molten iron will absorb a large amount of carbon during the heating process, so the carbon content of the resulting molten iron is very high.】

【In ancient times, there was no method to remove carbon, so the iron coming out of the blast furnace could only be cast but not forged, so it was also called cast iron.】

【At the same time, other impurities in the raw material also affect the performance of molten iron.】

【You can build a blast furnace out of clay, steel plates, or bricks (pictured)】

【A blast furnace is a chimney with a small head and a big belly. The furnace wall near the bottom has two openings, high and low.......】

In the sky.

Start explaining the technology of indigenous steelmaking.

When I saw the refreshing blast furnace + furnace steelmaking method.

High-quality steel can be smelted in large quantities.

The emperors all watched intently!

Ying Zheng:"Is this okay?"

Liu Che:"Such a design is unbelievable! Magical! It's amazing!" Cao

Cao:"This kind of steel has been tempered for thousands of times, isn't it like cutting iron like mud?"

Li Er:"Hiss! Write it down. Write it down.! Write it down for me quickly!"

The emperors felt like they had found a treasure.

However.

This is not over yet.

After domestic steelmaking.

The sky curtain then showed many local techniques that could be realized in ancient times.

【Homemade Allicin:】

【It has many side effects and health care effects】

【It has varying degrees of inhibitory or killing effects on a variety of bacteria, viruses, fungi and other pathogenic microorganisms and tumors.】

【The indigenous extraction process of allicin is relatively simple......】

【......】

【Native penicillin:】

【Penicillin is one of the most widespread and effective antibiotics we have】

【The extraction of penicillin is more difficult than that of allicin】

【However, in ancient times, if you could master the local techniques, you could also extract them.】

【......】

【Homemade cement:】

【It is one of the essential raw materials for the infrastructure of modern society】

【The concrete made of it not only has high strength after hardening, but also can effectively resist the erosion of fresh water or salt water.】

【If cement could be made in ancient times, congratulations. As long as you are willing to spend time, you will also have the opportunity to build modern buildings in ancient times, especially modern roads.】

【The steps of home-made cement are not difficult either.......】

Allicin, penicillin, cement, compass, sweet potato growing tips......

In the sky.

After making steel by local methods.

Then he successively introduced several techniques that could be realized in ancient times.

For a while.

Ancient people felt like they had found a treasure.

Even if ordinary people learn the techniques of making salt and steel, they won’t be able to use them.

Then cement, allicin, penicillin and so on.

Those are all treasures!

Not to mention cement.

I learned how to use it myself or sell it.

They are all very marketable.

Not to mention it can also be used to build concrete roads!

And that allicin, penicillin (get money).

These are life-saving things!

For a while.

The people who originally had great respect for Tianmu.

Even more respect for Tianmu!

"Eye-opener!"

"What an eye-opener!"

The plane of the Tang Dynasty.

After watching the video, Li

Er felt excited!

"With the acquisition of these technologies, Datang has a promising future! The future is promising!"

It's not just Li Er who has this idea.

The ministers' self-confidence is also extremely high at this moment.

"Now that we also have the technology of future generations, doesn’t it mean that as long as we spend some time, we can be the same as future generations?"

"Can we also have that kind of path in future generations? Can there also be high-rise buildings?"

"hiss!"

"I think future generations will be like this! It turned out that it was thanks to these technologies that we became powerful?"

"Now that we know it, won’t we be able to catch up soon?"

The ministers were excited.

They all felt that they would catch up with future generations in the near future.

However, Changsun Wuji did not have any pride at all.

"How can the prosperity of future generations be matched by such a small path?" He thought secretly in his heart.

Looking at the sky.

At this moment, he was even more curious.

In the eyes of their ancients, these technologies were already extremely magical.

But in later generations ,......It seems like everyone can do it?

Then the real cutting-edge technology of later generations.

What will it be like? now.

Changsun Wuji suddenly became extremely curious.

I want to see the real top technology of the future.

Not him.

The same goes for Li Er.

The same goes for other emperors.

They all thought of going together

"These technologies seem not worth mentioning in the eyes of future generations."

"So, what did they rely on to create such prosperous future generations?"

"What about the truly top technology?"

Everyone looked at the sky.

But at this moment, a video appeared on the sky.

【The crown jewel of modern industry takes you to understand electron lithography technology】