Chu Xintian looked down again, the things that this person sells are also different from others.

We all sell something delicious and interesting, or gold or silver jewelry. However, the only one's booth does not display these things. They sell shabby stuff that looks dirty and old.

This kind of stall, in this festive atmosphere, is also natural.

There were several books made of parchment that looked worn out and had some smudges on them. They look like soup that was accidentally spilled on top while eating.

A set of glassware with a complex structure and a peculiar appearance. I don't know what it's for.

In addition, there is a copper single-hole telescope.

Seeing this, Chu Xintian's heart was pounding.

Especially the book above.

Chu Xintian saw that the words on the cover were in English.

Her English in her previous life was not bad, and she had no problem with conversations, reading, and writing with people.

She knew what it meant

Glass production technology.

It's a technical book!

Chu Xintian reads history books. She knew that glass was invented by the ancient Egyptians 4,000 years ago. In ancient Rome, stained glass made by the Romans was introduced to the East through India. During the Qin and Han dynasties, China's glass-making technology was relatively developed, and there was a glass workshop, but the glass-making method soon disappeared, and craftsmen after the Sui Dynasty had to use celadon instead.

Later, during the Yuan, Ming, and Qing dynasties, glass production became more and more common. During the Kangxi reign of the Qing Dynasty, a glass factory was built in the Qing Palace. Excellent craftsmen from Yanzhou and Guangzhou in Shandong gathered together. Using the glass-making technology introduced by Western Europe by Western missionaries and technicians, a large number of new varieties of glass were created.

However, there is still a big gap between the quality of glass made by the ancients and Western countries. In terms of light transmittance, it is not on the same level.

It can be said that highly transparent glass was first introduced to China from the West in the Qing Dynasty. Prior to this, neither ordinary people nor the Qing Dynasty royalty and aristocrats had ever used such a crystal clear item.

Most are glass, ceramics and bronze. Although lead barium glass, which is the closest to the characteristics of glass, the products produced are not very transparent.

The Qing Dynasty in China began a fanatical pursuit of glassware due to the fact that Westerners brought this magical object that sparkled in the sunlight and allowed light to penetrate the vessel into China.

Because at the time of introduction, the Qing Dynasty did not fully master the production technology of glassware. As a result, many glassworks were brought in by boat from the West. This makes it even more valuable. Ordinary families just look at it. Only the royal palace or the noble nobles could get the colored glassware. Also, many of them are used to decorate the house, unlike modern people who eat or use them at home.

Gradually, who owns glass products, who is superior to others, and whether or not they own glass products has become a symbol of social hierarchy. It can be said that this small object brought infinite nostalgia and yearning to the people of the Qing Dynasty.

And because there is no mastery of the technology to make glass, the price of glass is also very high.

It is said that the Kangxi Emperor installed a small glass window of about half a square meter in his room. The money can buy 16 rooms.

What Chu Xintian learned in her previous life had a history similar to the era she was in now.

In this era, the glass firing technology of the Central Plains was far inferior to that of the West, and the price of glass products was also very high.

Chu Xintian knew that the glass lamps used by the wealthy families in the capital were very small, and a lampshade cost hundreds of taels of silver.

If Chu Xintian had mastered the glass firing technique, would she have any other way to make money?

Chu Xintian is not a complete money fan. However, she has started a new life. What interests her most right now is her business achievements.

Thinking that he had such a good business that no one else had done, and that he could bring him success and money, Chu Xintian's heart was overjoyed!