Daming Town Haiwang

Chapter 91, colorless glass is a good thing
As the red glass slowly cooled, it began to solidify. At the same time, as the redness faded, the glass also slowly turned white and transparent.

Liu Jin held a pair of scissors in his hand and cut the glass at the joint. After the glass had cooled down slowly, he picked it up with pliers and began to observe slowly and carefully.

"Not bad, not bad, the glass was fired successfully for the first time, but the color of this glass is still not pure enough, the color is yellowish, it seems that we need to continue to experiment and find a way to get rid of this variegated color. .”

"There are very few bubbles, and they are very small. If you stir and stir more, and increase the temperature, you should be able to get rid of all the bubbles."

Watching it cool down and condense into a spherical glass mass, Liu Jin also nodded in satisfaction.

For the first glass firing, the requirements should not be too high. Originally, Liu Jin thought that it would be good if he could fire the glass, but he did not expect that the glass fired for the first time was already quite good in all aspects.

"The color is yellowish, which should be due to some substance in the raw materials. I remember that in the history of glass in Europe, the glass in the early hundreds of years was green glass, and everyone has always believed that this glass is green. Yes, it cannot be changed.”

"The green color is because the glass contains a small amount of iron. The reactant of iron forms divalent iron, and the compound of divalent iron makes the color of the glass green."

"Now the glass is yellowish. This should be related to the iron element in it. We must find a way to get rid of this."

Liu Jin analyzed carefully, Liu Jin did not seek help from the system for firing glass, because the points were not easy to come by, and he could save as much as he could. Liu Jin would only go to the system for help when there was really no other way.

"Brother Jin, is this Liuli?"

On the other side, Zhao Erhu, who was pulling the blower, also looked curiously at the glass in Liu Jin's hand, very curious.

"Well, it's called Liuli, but this thing is a rare thing in our Ming Dynasty, and it's very common in Europe, so it's not a big deal."

Liu Jin nodded, and continued to use the stove to take out some glass, pour the glass into a special rectangular frame, and when it cooled, a glass was formed.

"We must replace all the windows in the future. The light in the room is too dark."

Seeing the glass made by himself, Liu Jin couldn't help but said that the windows in this era were so small and opaque that the room was very dark, and it felt gloomy even in the daytime. Liu Jin is not used to it, and always feels it is too dark.

"hu~hu~"

Soon, Liu Jin also took out some glass again, took out a blowing stick that had been prepared a long time ago, and started blowing glass.

Glass blowing is a technical job. Obviously, Liu Jin, who was blowing glass for the first time, had pain in his cheeks, and he couldn't blow anything decent.

"It's okay~ it's okay, this is at least a glass. Although it's ugly, at least it can be used to drink tea. Well, it must be kept. It's also very good as a souvenir."

Liu Jin is holding a glass bottle that he blew out. This bottle is very ugly, and it must not be neat, let alone beautiful, but after all, he blew it out by himself, and he likes it no matter how ugly it is.

For the next few days, Liu Jin didn't go anywhere, and concentrated on firing glass, constantly trying various methods, and the quality of the fired glass was getting better and better.

"Haha~ Finally, colorless glass was fired. The quality of this glass is incredible, and you can't even see a single bubble. It can definitely be used to make telescopes."

Five days later, when the latest batch of glass was fired, Liu Jin also laughed happily. After several days of repeated experiments and attempts, Liu Jin finally produced colorless glass.

"This glass is coated with a mixture of mercury and tin, that is a mirror, and this mirror can make money~"

Looking at the colorless and transparent glass, Liu Jin's eyes are full of small money.

We must know that in this era, mirrors are still very high-end even in European regions with a lot of glass.

The first real mirror in history was in 1507 in Venice, Italy, a place famous for making glass. The locals accidentally applied some metal liquid to the glass, and this was the first glass mirror.

Its appearance caused a sensation throughout Europe at that time, and became the new favorite of the princes and nobles. They all rushed to buy mirrors at high prices. When the Queen of France got married, the King of Venice gave a very small glass mirror as a gift, which was very rare. A precious gift, its value at that time was [-] francs.

Because mirrors are so valuable, the Venetians even enacted strict laws to protect the manufacturing methods of mirrors. Anyone who leaks the mirror manufacturing methods will be sentenced to death, and the place where the mirrors are produced is placed in a closed and isolated place. island.

Relying on this method, the Venetians kept the mirror manufacturing method a secret for more than 150 years, and they did not know how much money they made by relying on the mirror.

It is now the tenth year of Hongzhi, which is 1497 AD. To be precise, although there is colorless glass in Europe today, the glass mirror has not been invented yet, and it will take ten years before the glass mirror will appear.

Traditional mirrors are generally bronze mirrors. Although the clarity of bronze mirrors is not bad, it is far from glass mirrors. This is why glass mirrors are popular in Europe.

As European colonists colonized all over the world, glass mirrors also spread to all parts of the world. Wherever they went, they almost immediately became things that princes and nobles in various places rushed to buy.

Among other things, Europeans don't know how much wealth they have plundered from all over the world just by selling this glass mirror.

"Colorless and transparent glass is a good thing. With you, you can not only make small money, but also make telescopes and microscopes. It has many functions. It is very useful for the study of natural science, especially cosmic astronomy and biological bacteriology. It has extraordinary significance.”

Liu Jin looked at the colorless transparent glass in his hand, and a smile appeared on his face. The rapid development of European astronomy and biomedicine in this era is definitely inseparable from this thing.

With colorless glass, telescopes can be manufactured, and telescopes are absolutely indispensable for cosmic astronomy. Microscopes can also be manufactured to observe the microscopic world, which can greatly promote the development of biomedicine.

　Please collect, please collect~
　　
　
(End of this chapter)