At this moment, the little stove walked in from outside, expressing "indifference" to the words on the stone slab that looked like heavenly letters.

"Master, what you want is ready."

"Okay, Brother Zu, I'll learn physics here today, let's go, I'll teach you another science, chemistry .........."

A few people came to the backyard of the Taishou Mansion, where a large pile of sand and gravel was placed.

These sand and gravel are all river sand dug out of the Jinsha River, not for gold panning, but contain a large amount of silicon oxide.

What can silicon oxide be used for? Of course, it is used to fire glass.

In this era, glass products have appeared, but they are not fired in the Great Zhou, but the so-called glaze from outside the Western Regions, this kind of glaze is very precious, higher than the price of jade, for example, Liu Yuan's warehouse has a thumb-sized blue glaze, the price is more precious than the same size of Kunlun white jade, many people in the Great Zhou Dynasty think that this kind of glaze is a natural gemstone, but in Liu Yuetian's eyes, glass is glass, as long as you find a way to fire, that is as much as you want, Not to mention that he was a materials physicist in his previous life, and it was no problem to fire any kind of glass.

"Lord Wang, according to your orders, we have already ground the river and sand to one side, take a look, this fine sand charm does not meet your requirements?"

A stonemason picked up a handful of fine river sand and handed it to Liu Yuetian to see.

"Yes, that's it, you weigh out five catties of fine sand and put them in the stone cauldron."

This is a stone kettle made of granite, which contains feldspar, that is, calcium, and silicon is mixed with alkaline substances to make glass.

The stonemasons didn't know what the prince was going to burn, but they did it step by step according to the requirements, and then began to heat it with charcoal, the general charcoal burning temperature would not exceed 1,000 degrees, but Liu Yuetian stacked the charcoal in layers, leaving a certain gap between each layer to allow sufficient air flow, and there were two apprentices who kept fanning on the side, and a large amount of oxygen entered the furnace and the temperature could reach a high temperature of more than 1,300 degrees.

Half an hour later, Liu Yuetian visually observed that the flames had reached the temperature of the various rocks in the molten cauldron, and he took a copper bar and stretched into the hot stone cauldron to stir the lava inside.

After a full quarter of an hour, Liu Yuetian ordered the flames to be extinguished, and when the stone cauldron cooled down, it was brought to him.

There was still a lot of sand in it, but inside the sand there were already four or five crystals with a green sheen.

"Brother Zu, do you see it? This is the glass, and these green sheens are the color of the copper element. ”

"Ahh Lord Wang, is this Liuli? ”

Several stonemasons on the side were surprised to see this crystal clear glass, although they had never seen the glass, but they knew that this kind of thing came from the Western Regions, and the price was more expensive than gold, and it was a treasure that many officials and nobles flocked to.

"Little furnace, how much are these five gems worth?"

Liu Yuetian casually threw a piece of the small stove, so frightened that he almost fell to the ground.

The little stove took it and looked at the glass that was full of two or two.

"Master, slow down! This is glass! The price in Chang'an is several times that of gold, and it would be a pity if it was broken! ”

"This kind of fineness, I think it can be worth at least twenty taels of gold, and five pieces is one hundred taels of gold, master, you can turn stones into gold now!"

The little stove shouted excitedly.

"Turning stones into gold? Haha, no, no, this is not a little bit of gold. ”

Liu Yuetian smiled and shook his head.

"Isn't it?"

The small stove was also clever enough, and he thought of the reason at once, and then looked sharply at the stonemasons.

"You guys, you must have seen the method of burning the glaze, let me tell you, if this method spreads, hum, then you will also live to the end."

"Lord Wang! You can rest assured, you can rest assured, a few of us will never dare to pass on the method of firing glass, you spare us! ”

The stonemasons fell to their knees in fright.

"Hurry up, hurry up, I believe you let you burn this glass with me, you don't have to worry, and from now on you will follow me, I still have a lot of fun things that need your help, small furnace, from now on, a few of them will do things for me in the house, specially for me to burn the glass, five taels of silver per person per month."

"Five taels of silver?"

A few people couldn't believe their ears, five taels of silver a month, sixty taels a year, in this era is definitely a high salary, one person can support a large family, and life can be very good.

"Thank you, thank you, thank you!"

They had just stood up and fell to their knees again, tears of excitement.

"Report to the prince, the envoys of Dashu have arrived outside the gate of Tianshui City!"

A guard ran in from the outside to report.

"Oh! This Dashu was the first to come, come, open the door to greet him. ”

Liu Bei, the king of Shu, is also a royal family, and he is the same generation as Liu Sheng, the current king of Zhou, according to his generation, and he is Liu Yuetian's uncle.

The Liu family of the Great Zhou Dynasty has been inherited for more than 700 years, and now the people of the Liu family are almost all over the world, and of course these people cannot all be nobles.

Maybe your ancestor is also a certain prince, but after hundreds of years, he will gradually become an ordinary person, such as Liu Yuetian, he is now the king of the county, he must have descendants, without violating the law, it can only be the earl title, and then the viscount baron, after the fourth generation, there will be no title, if the descendants have no merit, then six or seven generations later, it is possible to become an ordinary person.

And this Shu king Liu Bei was an ordinary person twenty years ago, but when Shu was in turmoil, many local forces wanted to become the overlord of Shu, this Liu Bei took advantage of the situation, and swept through Western Shu in just five or six years, and then Da Zhou named him the prince king, because both sides are descendants of King Wu, so Da Zhou was particularly close to Liu Bei, but after Liang Ji took power, Liu Bei seemed to have an opinion on the current dynasty, and the court called him many times if the court did not come to discuss the cause.

Of course, he is different from Liu Yuan, the court said that Liu Yuan did not dare to come because of the ghost in his heart, and Liu Bei did not come to express his dissatisfaction with the dynasty and his resentment towards Liang Ji, but Liang Ji did not dare to say anything, Liu Bei has millions of male soldiers, Xishu is a rich land, and the strength is that the seven princes in the world can also rank in the top three, who dares to provoke him? So I can only stare dryly, and I can't do anything.

In addition, three years ago, Liu Che was named the king of Hanzhong, which is adjacent to Xishu, and with the support of Liu Bei, Liu Che is now also a strong soldier and has a tendency to become the next king of Zhou.

When the envoy of Shu arrived, Liu Yuetian naturally would not slack off, the main gate of the Taishou Mansion was opened, and Liu Yuetian wore a royal robe to lead Shi Le and Chang Yuchun and others to greet him in front of the mansion in person.