"What? You can make Liuli? Hahaha... Junior brother, just brag. If you know how to make that thing, and you still slouch your stomach and sell juice? Don't brag."

The second senior brother waved his hand at Li Wenxian, his face full of disbelief. Li Wenxian was also embarrassed. He knew that glass is so valuable in this world. If he had known that he would have done it long ago, and he would have waited until today.

However, Li Wenxian did not say it directly, but was preparing to dig a small hole for the second senior brother to jump. After all, this is probably going to require the second senior brother to make some effort. This direct command. The second senior brother must take the opportunity to get the benefits, and it is better to cheat him now.

"I'm bragging? Why, my senior brother doesn't believe it?"

"Nonsense, junior brother, senior brother, I've watched you grow up. Why don't I know you know this skill?"

The second senior brother was still shouting, and Li Wenxian smiled and said, "Senior brother, I don't want to argue with you. If you have the ability, let's make a bet, do you dare?"

"Betting, OK, how to bet."

The second senior brother still remembered the revenge of 300 buns two days ago, and was thinking about finding an opportunity to avenge it.

Li Wenxian smiled and said, "Let's just bet on making glass. After a while, Senior Brother, please follow my arrangements and help me a little favor. I will make glass for you. If you can't make it, the pot of Coke will belong to you. After it is made, Senior Brother, you promise me to help me a little favor. Senior Brother, are you willing."

"Okay, this is great. Junior Sister Ling'er, Lao Wu, you all heard it. If your senior brother loses, he can give me all the coke without regretting it."

The second senior brother pointed at a big pot of Coke, for fear that Li Wenxian would cheat.

"Yes, Lao Wu, Ling'er, you testify. In a while, my second senior brother and I are not allowed to cheat. Whoever cheats, you two can despise you for the rest of your life."

Li Wenxian smiled and said to Ling'er and Lu Wenfei. He was already happy in his heart. He had free labor. It was really a matter of heaven that I would not give birth to my second senior brother. The tunnel is like a long night.

The method of making glass is actually not difficult. The main ingredient of glass is silica, and the common silica in life is actually sand. It is very simple to make glass, that is, melt the sand and solidify it to make glass.

However, the melting point of silica is 1700 degrees Celsius. If you want to completely melt, you must increase the temperature to 2200 degrees Celsius. Such high temperature is difficult to achieve by ordinary methods.

Therefore, it was difficult for ancient craftsmen to make glass, which led to the expensive price of glass.

As long as you overcome the problem of melting sand at high temperature of 2,200 degrees Celsius, it will be very easy to make glass.

When someone sees this, he will say why the historical time travel novel next door is so difficult for the protagonist to make glass, and why is the craftsmanship so complicated?

In fact, this is very simple. First of all, it was difficult for ancient craftsmen to increase the temperature to 2,200 degrees Celsius, so they could only find ways to reduce the melting point of the sand silica.

So their common method is to add soda water to the sand, which can reduce the melting point of the sand to about 850 degrees Celsius. However, the sand made in this way is easy to dissolve in water, and no one wants a glass cup that is soluble in water. Therefore, they thought of another way, adding lime, calcium carbonate and silica reacting to form a stronger glass structure.

This is why it is so difficult to make glass in ancient times. The key is how to melt the sand. This key point is too simple for the cultivator. You have heard of the true fire...

...

Jian Huifeng Refining Utility Room.

"Come on, Brother Second, it's almost gone, it's almost gone, the sand is about to melt..."

In the room, Li Wenxian, Li Ling'er, and Lu Wenfei surrounded a large furnace. At this time, the second senior brother sprayed flames with both hands and acted on the furnace. The second senior brother was fire-attributed true qi. In addition, he participated in the Taishang Dao Sect Food Competition a few years ago, and won the first place, winning prizes, mysterious-level martial arts, and the secrets of the fire palm. After years of cultivation, the second senior brother has practiced to a certain climate, and can spray flame true fire with both palms, with the flame temperature reaching 3,000 degrees Celsius.

This is also the reason why Li Wenxian put his ideas on the second senior brother. If it were not for the second senior brother's help, Li Wenxian would have to work hard to melt the sand.

But now, with the free labor of the second senior brother, Li Wenxian can reap the benefits of the fisherman.

"Junior brother, how long will it take? I can't hold on anymore."

The second senior brother was gasping, and sweat was flowing on his forehead. Li Wenxian smiled and said, "Senior brother is approaching, let's hold on again, come on, Ling'er, Lao Wu, let's give me a chewy to my senior brother."

Slap sex...

"Senior brother, come on, you are the fattest!"

Second Senior Brother: Why do I feel like you are scolding me?

"Senior brother misunderstood, misunderstanding, we respect you..."

"San Lao, stop talking, I can't hold on anymore... I'm going to stop."

The second senior brother said gasping.

"Don't, senior brother, if you persist, it will be two-thirds more. You will stop working now, but even if you can't afford to play and cheat, the three of us will despise you for the rest of our lives..."

"Yes, second brother, we despise you~"

...

"You, you, I hate you, Fire Palm, Huh..."

The second senior brother gritted his teeth and exerted force suddenly. The flames in his palm suddenly flew up. The temperature of the flames instantly increased, and the sand in the furnace began to melt rapidly, turning into a liquid that was red and red, like molten iron.

"Okay, senior brother, the task is done!"

When Li Wenxian saw that the sand had melted, he screamed. The second senior brother sat on the ground and panted. He was really exhausted.

"I'm so exhausted..."

The second senior brother collapsed on the ground like a dead dog.

At the same time, Li Wenxian poured all the melted sand into the mold. After the sand solidified, Li Wenxian could obtain the glass bottle.

And before the bottle solidified, Li Wenxian wrote the word "媚" on each glass bottle with an iron needle, and at the same time drew a circle outside the word "媚".

This is the trademark anti-counterfeiting logo made by Li Wenxian. This immortal obtains the last word Li Wenxian, indicating that this thing was made by Li Wenxian.

"Brother, can you really make glass like this?"

Li Ling'er asked at the red sand liquid in the mold. Li Wenxian nodded and said, "Yes, it's enough to cool down."

"But brother, I can't understand. Why can this sand be turned into valuable glass after heating? Isn't it a sand after heating it?"

"This, this is actually quite difficult to explain. If you want to explain it clearly, I'm afraid you have to systematically tell you about junior high school chemistry. Let's put it this way, the molecules that make up objects are in different molecular structures or physical states, and the forms they appear are different. Sand and glass are all silica, but they are just manifested differently, just like water and ice, graphite and diamonds..."

Li Ling'er's expression after listening to Li Wenxian's story: o((⊙﹏⊙))o Unclear

"Hey, hey, Senior Sister Ling'er, Brother Ling, look, look, it's solidified, it's solidified, the glass is about to come out..."

Just as Li Ling'er was in vagueness, Lu Wenfei shouted as he looked at the rapidly cooling model.
Chapter completed!