"Wait a minute, are you talking about the same kind of glass as me? I'm talking about the kind of glass that is transparent, can withstand high temperatures and can be mass-produced. It's the kind of glass that Tang Ruowang mentioned in "The Telescope".

It’s also the glass like the telescope in the bronze cannon you once made!”

Only then did Gu Heng fully understand that "glazed" and "glass" were different, and couldn't help but explain in detail.

"That kind of glass is also very expensive and rare. Missionaries and Western businessmen occasionally bring palm-sized transparent glass, which costs hundreds of taels of silver, because no one in the Ming Dynasty can make such transparent and impurity-free glass!"

"Is this an exaggeration? Then the glass used in the telescope you invented was also bought from Westerners. It must have cost a lot of money!" Gu Heng couldn't help but sigh.

"Yes, because of this, and the imperial court cannot give enough money to support people like me to make those inventions and improve those military weapons, so I don't want to continue serving in the army. After all, I can't make achievements.

!" Bo Jue said sadly.

But Gu Heng immediately realized a problem and couldn't help but said: "Then the distillation method I told you before to extract some plant essential oils cannot be realized now? Because many of those equipments require the use of transparent glass!"

"Yes, I was also about to tell you that I tried to use other materials to make those devices, but found that many of them were irreplaceable. I was also about to ask you about the distillation method and how to solve it next." Bo Jue replied.

When Bo Jue told Gu Heng about this situation, Gu Heng was also in trouble for a moment. It seemed that he had to get the glass out first!

But I only know how to talk on paper. When I was reading historical fictional novels in modern times, I found the production methods and processes online. Gu Heng has a good memory, so I remembered them right then!

But Bo Jue still has to explore the specific experiments. It would be great if there are still people who know some Western scientific knowledge and have the spirit of research!

Then you need to have good financial resources and connections so that you can get some things.

By the way, Fang Yizhi! Maybe he can help!

Thinking of this, Gu Heng quickly asked people to go to the place where Fang Yizhi lived and asked Fang Yizhi to come. At the same time, Gu Heng took a pen and began to write down on paper the materials and methods required for glass manufacturing in his impression, as well as the specific process.

After Bo Jue saw it, he couldn't help but ask: "Miss Gu, is this a method of making glass?"

"Yes, but there will definitely be a lot of problems in manufacturing." Gu Heng said with some worry after finishing writing.

"Miss Gu, I don't understand your ingredients here. I know all about limestone, dolomite, feldspar, saltpeter, etc. But what are soda ash and quartz sand?" Bo Jue asked.

"Soda ash is used to ferment steamed buns, and quartz sand is the fine particles made by crushing quartz stone." Gu Heng explained.

"Isn't that what ferments the steamed buns? That's easy to find. It takes a while to find the quartz stone. It's just that you don't seem to have written down the specific proportions of these ingredients!" Bo Jue discovered another problem.

"Uh-huh, I'm not sure about the specific proportions. I only know that limestone, soda ash and quartz sand are roughly mixed in the same proportion, but there may be some differences in the specific manufacturing," Gu Heng replied helplessly.

"Okay, let's try it out then. This melting process requires high-temperature heating and may require a special kiln for firing, but I'm not very good at this." Bo Jue pointed out his shortcomings directly.

.

"I know, so we still need help..."

"What can I help you with? Hengbo, do you need my help?" Before Gu Heng finished speaking, Fang Yizhi's loud voice came from the door.

Gu Heng quickly looked back and saw that it was indeed Fang Yizhi, but Fang Yizhi seemed to have dressed up specially today. He was wearing an exquisite crescent white brocade robe, and his hands as white as ivory also held a folding fan painted with orchids.

Picturesque, gentle eyes, indescribable grace and elegance!

Moreover, Fang Yizhi is tall and tall, with a tall and straight posture. When he looks at Gu Heng and smiles, he is like the green pines after the rain, which makes people feel relaxed and happy!

Gu Heng couldn't help but be a little dumbfounded, and at the same time, he was full of envy, jealousy and hatred: Why did Fang Yizhi wear such a sexy bag today when he had nothing to do? Why didn't he travel through time to be the same young master as Fang Yizhi? How much would he gain?

The beauty’s gaze! And...

While Gu Heng was still thinking wildly, Fang Yizhi had already come to Gu Heng, lowered his head and looked at Gu Heng, and then said softly: "Hengbo, what are you thinking about?"

"Ah, it's nothing! I do have something to ask you for help!" Gu Heng's face instantly turned red, and Gu Heng felt his face was a little hot, so Gu Heng had to get to the point right away!

"What is it?" Fang Yizhi asked again.

"Let me introduce you first. This is Mr. Bo Jue, courtesy name Zi Jue, from Changzhou. He is very good at mechanical manufacturing. The spinning machine and loom last time were all made by me after I drew them!

And..." Gu Hengfang introduced Bo Jue intelligently, but suddenly stopped.

"Young Master Bo is a great talent. I admire you. I will tell you with wisdom. I am from Tongcheng. Thank you for meeting me!" After Fang Yizhi said this, he bowed his hands to Bo Jue to show his respect for meeting him for the first time.

"It turns out that he is Mr. Fang, one of the four young masters of Fushe. Mr. Fang is well-read and talented. It is an honor for me to meet Mr. Fang today!" Bo Jue also bowed his hands in return.

"What else?" Fang Yizhi was very curious when he saw that Gu Heng stopped and didn't say anything more, but came to a table, opened the wooden box on the table, and took out an exquisite porcelain bottle.

"And this, this is perfume. I asked Brother Bo to make it after I designed and drew it. Smell it!" Gu Heng opened the cork of the porcelain bottle and placed it under Fang Yizhi's nose!

Fang Yizhi immediately smelled the fragrance of orange, which made people feel fresh and natural, and gradually gave him a sense of joy!

"This is called perfume? It seems to be more effective than sachets and incense, and it is easier to apply all over the body!" Fang Yizhi said excitedly.

"Yes, this perfume is indeed very good. It's just that I could have made more perfumes with other scents, but because I didn't have the special equipment to make the transparent, colorless and high-temperature-resistant Western glass, I couldn't make it. But I know how to make glass.

method, but..."

"But you need my help in some aspects, right?" Fang Yizhi took over Gu Heng's words and said.

"That's right, you're awesome! Come and take a look. This is the method and process I drew for making that kind of transparent colorless glass. In the melting process, I need a high-temperature-resistant kiln to bake the glass."
Chapter completed!