Chongzhen and I became partners

Chapter 68 Supplement
In fact, the production of gun cotton is very simple, but the key problem is that it was in the late Ming Dynasty.

A simple example, sulfuric acid, modern people know what it is, but ancient people have never heard of this word. No matter how Liu Weichao explained it, Emperor Chongzhen did not understand it.

Although sulfuric acid actually existed in ancient times, it was called dry distilled stone gallbladder, which was invented by Gu Gangzi, an alchemist in the Tang Dynasty.

The problem today is not only because of the difference in the names, but it has become a chicken talking with a duck.And there is another point, even if Liu Weichao described the properties of sulfuric acid, Emperor Chongzhen was an emperor, not a chemist, and he had never been exposed to sulfuric acid, he still would not understand it.

Not to mention, in the production of nitrocellulose, concentrated sulfuric acid is actually used instead of dilute sulfuric acid.

After speaking for a long time, Liu Weichao felt very tired.And Emperor Chongzhen was also flushed, a little ashamed.

I don't understand this, I don't understand that, just like a child, this knowledge is too shallow!

Fortunately, Liu Weichao is patient. After he really couldn't explain the concept of sulfuric acid, he tried to skip this concept and explain other things.

The result was still the same as the concept of sulfuric acid, and there were many problems that Emperor Chongzhen could not understand no matter how he explained it.

What's more, in the process of explaining to Emperor Chongzhen, Liu Weichao suddenly discovered that the glass making method given to Emperor Chongzhen before was also problematic.

"It's impossible for the glass bottles to be exactly the same? It's impossible!" Liu Weichao was a little surprised.

Chemical experiments require precision, but Emperor Chongzhen said that there must be differences, so what about the chemical ratio?
Vaguely, Liu Weichao feels that it is really difficult for the technology tree of chemistry to be lit in the late Ming Dynasty!

Emperor Chongzhen's voice had unknowingly lowered a lot, and he explained to Liu Weichao: "Those glass bottles are all blown by artisans, even if I threaten to kill their nine clans, it is impossible to blow them out exactly the same!"

Liu Weichao slapped his forehead, feeling that he was completely defeated.

After that, he used the tone of tutoring primary school students, and asked back with a bit of hatred for iron and steel: "Then why not use the method of pouring, but the method of moulding, isn't the product produced that way exactly the same?"

Before, he just gave the method of firing glass.I always thought that he didn't have to worry about the rest.

"..." Emperor Chongzhen couldn't help being speechless when he heard it, and asked after a while, "Can this glass also do the same?"

"Why can't you do this?" Liu Weichao asked rhetorically, speechless.

If Emperor Chongzhen was his student, he would probably have to slap his palm in front of him. How could he be so stupid?

In fact, Liu Weichao really wronged Emperor Chongzhen a bit.

In Europe, glass was invented as early as 200 BC.However, European glass craftsmen have always used blow molding to produce glass products.

According to the original historical development, it was not until 1821 that the method of using molds to produce glass was invented.

In other words, the direct modeling technology of glass has been delayed for two thousand years!

The reason for this is that the ancients lacked a systematic understanding of physics.

At this time, Emperor Chongzhen didn't understand, so Liu Weichao searched a little, found the explanation, and then gave him a popular science saying: "As long as the melting point of glass and other things are different, you can use the mold method to make it."

"A very simple example, using wrought iron to make various container models such as two-half split flasks, retorts, and test tubes, dipped in glass juice and blow them in, opened the mold after molding, cut the bottle mouth, and polished it with sandpaper Get rid of the thin lines formed by the seams of the mold, and that’s it. There are no technical obstacles, and all specifications are completely unified and completely standardized bottle containers.”

Having said that, he added: "In this way, you can make any glassware you want, and the yield can be greatly improved!"

"..." Emperor Chongzhen was already dumbfounded, as if this was really possible, why didn't he think of it!
The more glass produced, the more silver you can get from selling the glass!
Happy and looking forward to it!

Seeing him like this, Liu Weichao couldn't chase after him to say anything, but thought of something, and asked: "Tell me first, what are your glass products? Let me see, can you give me more?" Do you have some suggestions?"

When Emperor Chongzhen heard that he had seen the glass products produced, he quickly answered Liu Weichao.

After he finished speaking, Liu Weichao said to him: "Glass actually has many very practical uses, such as myopia glasses, presbyopic glasses, telescopes, mirrors, and flat glass used as doors, windows, and even skylights, etc., which are very useful. Practical. Among them, some may require some technology, and some may not. Wait a minute, I will send you all the methods. If you have any questions, you can ask me again!"

Glass, unlike nitrocellulose, does not have so many concepts and advanced technologies. I believe that Emperor Chongzhen should be fine.

Thinking of this, he hung up the communication.Although he probably knew how to do it, but it was for Emperor Chongzhen, so he had to treat it as a completely blank foundation. Therefore, how to do it should be done in detail, it is better to be more detailed!
On Emperor Chongzhen's side, after hanging up the communication, Concubine Hetian looked at each other, feeling like they were looking at each other in blank dismay.The series of questions and answers just now hit them a little bit.

Therefore, at this moment, neither of them is particularly excited, and even a little worried.I'm afraid that there will be another bunch of people who don't understand.

Of course, it doesn't mean that ancient people were so ignorant.

If Liu Weichao talked with Song Yingxing this time, maybe it would be different.

After a while, the mobile phone received a message notification, reminding me one after another.When Emperor Chongzhen saw it, he quickly clicked on it.

After a while, he finally breathed a sigh of relief.

Fortunately, fortunately, most of them understand and know how to do it.

And after reading this information, he also felt happy.

Because the glass products sent by Liu Weichao this time are all of very high value and can be sold for a lot of money, or they are very practical.

For example, the telescope is the telescope he received from Xiyi Jin, which is very useful for fighting.

There are also myopia glasses and presbyopic glasses. For rich scholars, they have to buy them no matter how much money they spend.

And the mirror, which is much easier to use than the bronze mirror, does not need to be sharpened frequently, and can be seen more clearly.

Speaking of this mirror, Emperor Chongzhen couldn't help feeling emotional, because Liu Weichao had noted that such a simple method in Xiyi had been kept secret for more than [-] years, and it was not until about this time that some French The technology was stolen and slowly made public.

He was thinking about it when he saw Liu Weichao sent another voice over.

When Emperor Chongzhen heard this, he couldn't help but agree deeply.

(End of this chapter)