Chu Tianxiu didn't know that Emperor Xiang Yanran was brewing the next wave of big moves, intending to put him on his back with this super big black cauldron.

When he returned to Yu Garden from the academy, he and Li Yu, Zu'er and Di'er began to tinker with glass in the courtyard.

He remembered the technique of refining glass.

But I have never tried, and there is no craftsman in the Great Chu Dynasty who can make glass.

The technique of refining glass seems to be difficult. If he hadn't refined it, no one would know how to make real glass for hundreds of years.

In fact... Surprisingly simple.

This thing is just like the technique of faint paper, a little bit of it... But if you don't click on it, you won't be able to see through.

Chu Tianxiu first built an earthen furnace kiln that can withstand high temperatures and smelt 1,500 degrees of high temperature in the open space of Yuyuan.

Then the quartz sand, hexagonal diamond-shaped quartz is ground into sand.

And the most crucial thing, trona, which is often found in salt lakes.

and auxiliary materials such as limestone, which are put into it for smelting.

The furnace is heated at a high temperature with a blower.

Of course, it is necessary to prepare some iron tools for cutting high-temperature glass in advance.

During this time, Danyang County made a lot of steel, and the county was full of small earth furnaces, and the technology of small earth furnaces has been very good.

In addition, there is a great increase in all kinds of iron tools, such as iron pipes, iron scissors, iron plates, iron hammers, etc., and the products are very rich.

Zu'er, Di'er is pulling the blower, the fragrance is full of back, and the wind is blowing and heating the earthen kiln.

An hour later.

Li Yu was surprised to see that all the quartz sand in the furnace had melted into a ball of liquid.

Chu Tianxiu picked out the solution with an iron rod, put it on the flat iron plate, and pressed it hard. It becomes flat, translucent glass.

The annealing cooled, and a foot-sized piece of translucent glass came out.

It's just that there are impurities in it, and the color is light blue, which is estimated to contain copper ions. Impurities must be removed to be as transparent as possible.

Chu Tianxiu pondered secretly.

Using scissors, cut the glass that has not yet cooled and cut it into a round mirror.

"Oh my God!"

"After such a burning, the glass was actually refined!"

"What a beautiful glass!"

The three women were shocked.

After the glass was annealed and cold, they held it in their hands, and they could faintly see the light blue figure on the opposite side through the light blue glass.

It's amazing!

This is definitely a rarity, and the price is more expensive than gold.

Not only the nobles of Da Chu, but also the nobles of all over the world are extremely fond of this luxury. Just this round light blue mirror, if you sell it, I'm afraid it will be at least a hundred and ten taels of silver.

"This doesn't count, I'll make a blue glass for each of you!"

Chu Tianxiu smiled.

Colored glass is naturally not suitable for mirrors. However, it is best to use it as a tool for other everyday use.

Blowing glasses, this is the real "epoch-making high-tech".

He took a hollow iron pipe in the middle, stained one end with a ball of molten hot glass, and then began to blow vigorously at the hollow iron pipe.

I saw that at the other end of the iron pipe, the glass solution began to bulge into a bag, and soon turned into a round ball.

Li Yu, Zu'er, Di'er, the beautiful eyes of the three girls all widened.

They couldn't imagine that this smelted high-temperature glass liquid could actually rely on their mouths to blow ~, blow big!

Then he used scissors to cut the opening, and then he used iron pliers and sticks, pinching, pinching!

Rub and rub!

Skillfully, the hot glass ball is ravaged into a beautiful goblet.

"Wow~, it's so beautiful! Husband, can you make other styles? ”

Li Yu was stunned.

This pale blue cup has a dreamy pale blue color, and it is transparent.

Drinking wine from such a cup is like a dream.

"Of course, you can carve it into a phoenix."

Chu Tianxiu made three light blue cups in one go, one for each person.

The three daughters can't put it down.

Chu Tianxiu tinkered with a few more beautiful glassware, and then stopped.

The technology of refining glass is not a problem, he only needs to build a large glass workshop, and recruit dozens of honest and reliable craftsmen, he can produce glass in large quantities.

Of course, how to remove various impurities from the glass and create a variety of glass with different colors and transparency.

These also need to be carefully studied by specialized glassmakers.

Simply build a glass academy, recruit the children of craftsmen to study, and engage in R&D and production.

"Yu'er, Ming'er bought a piece of wasteland outside Jinling City and built a glass workshop. This is a huge profit, and it is more profitable than paper and iron making. ”

Chu Tianxiu said.

If you monopolize this technology, you can keep it expensive for at least a decade or two.

Unless there are too many glass workshops, which are everywhere in the market, it will cause the glass to be worthless.

"Well, I'll go find a place today."

Li Yu nodded excitedly.

It is estimated that it will not cost 10,000 taels of silver to buy wasteland and a workshop. However, glass is a luxury, and any piece can be sold for dozens or hundreds of taels of silver.

As long as there is a family in Jinling City, boast about it, other princes, gate valves, nobles, kings and grandchildren, who doesn't want it!

The payback is very, very fast.

...

The palace guards reported that a big eunuch in the palace came to see him.

Chu Tianxiu was a little strange.

Ever since he used the eunuchs in "The Story of Stones", the eunuchs have not had a good relationship with him.

What is this eunuch doing here?

Soon, I saw a big eunuch in the palace with a few little eunuchs come to Chu Tianxiu, with a gloating smile, and said, "Our family has seen the little marquis." Passed on the emperor's edict and ordered the little marquis to play a song as soon as possible. ”

He heard a little bit of talk from Cai and the big eunuch, as if the little faint marquis was going to be unlucky. In addition to the difference this time, it is really bad luck and offended too many people.

And this mold was provoked by Xiao Duhou himself. In order to test the first place in the palace, Xiao Duhou did not hesitate to offend the world's strong heroes.

"What's going on?"

Chu Tianxiu was strange.

"It's the strategy you wrote at the temple exam. What you wrote, you know it yourself, and the emperor knows it. You didn't get the first place in this temple for nothing.

Of course, we don't know. The emperor's words, our family brought it. As for how to do it, take it easy, don't put yourself in it! ”

After the big eunuch finished speaking, he didn't wait for Chu Tianxiu's reply, and left with a swaggering smile.

Who would dare not listen to this emperor's dictation?!

He, the eunuch, was only responsible for conveying.

What the little dusk marquis did next, that was his own business. The emperor asked Xiao Duhou to carry this black cauldron. Disobeying the will of the Divine will will not end well.

Chu Tianxiu was shocked.

It's only been a few months of work, "The Policy of Banning Copper Coins from Privately", and the emperor is about to use it so soon?

He had just crossed over to Dachu at that time, and he was given a holy decree by the emperor to Pingwangfu as a son-in-law, and he hadn't figured out the situation yet, and he hadn't even figured out that there was a copper mine in Li Yu's fiefdom.

He only wanted to be a blockbuster in the Suiju Palace, raise his eyebrows, and be a big official, so that he would offer the "Prohibition of Private Minting of Copper Coins" in the palace examination.

Up to now, the copper mine in Ma'anshan, Danyang County has not been dug yet!

Will it be handed over to the imperial court?

It's nothing to hand over his own copper mine, anyway, there are already many ways for him to get rich.

Papermaking, Danyang County's steelmaking, and this new glass workshop. The income from one less copper mine did not affect him to continue to live the luxurious life of the little marquis.

But offend people!

How many princes, kings, princes, and nobles have been unable to mint copper coins privately, and what a loss has been. It's no wonder they're not mad.

What a headache!

This black cauldron, if he carries it, I'm afraid he will even have to worry about being assassinated when he sleeps!

On the contrary, he died himself and offered it.

Seeing that he was so violent, the emperor immediately gave him a palace test and made him the commander of Danyang County... But now, the emperor is going to let him fulfill this offer.

Chu Tianxiu wanted to cry without tears.