No one realizes the principle behind the color produced by prism refraction! Even if they did, they would hardly be explored in this day and age.

Not to mention this color-changing ink, as well as photodenaturation!

"Quick, take it and take a look!"

Soon one craftsman turned into a hunched waist and carried an ink cartridge, while another craftsman came to Zhu Gaojiao with a pen and a picture scroll.

"Your Majesty, please look!"

Slowly unfolding the scroll, a craftsman holds a brush, dips it in ink, and draws a horizontal line on the paper.

"Huh?"

Yang Shiqi, who was standing behind Zhu Gaoyi, was also a little surprised when he saw that the horizontal lines drawn by the same ink showed different colors.

I thought that this thing that His Majesty said was a bit nonsensical, even if there was such a thing in the world, it would be difficult to be developed in a short period of time, but I didn't expect that in just a few days, this kind of ink that can change color appeared in front of him!

It's incredible!

It's a stroke of genius!

Yang Shiqi was shocked, he stood next to the bookcase and paced back and forth, looking at the horizontal lines on the paper from different angles, and it really changed color?

"It's amazing, it's going to be red for a while, yellow for a while!"

"How did you do that?"

Yang Shiqi is very eager to know that if he masters the method, then the banknotes made with this ink will not be imitated by outsiders, and its value and safety will be greatly improved.

In the future, the convenience of paper money will inevitably make Daming's economy take off!

If it becomes popular in neighboring countries and is recognized by other countries, then wouldn't my business be able to develop all over the world?

If you use a current sentence to describe it, it is the economic hegemony of the Ming treasure banknote!

"Returning to Lord Yang, returning to Your Majesty, this exquisite method was not actually thought up by the lower officials, but accidentally discovered by the lower officials when they were looking through the ancient books of their predecessors!"

Digging through ancient texts?

Zhu Gaoyao was stunned after hearing this, I'll go, the ancients have already used color-changing ink so early!

"There are still such strange books in the world?"

There is such a book, although it is going to be read for reading, Yang Shiqi looked at this official with an eager face, but the other party showed a look of embarrassment.

"I'm afraid it won't work......"

"What's wrong?"

Yang Shiqi's face immediately changed, if such a strange book is lost, it will be a great misfortune for my entire nation!

"Because Xia Guan didn't find the book, only found a page of the book."

As he spoke, the officer took out a yellowed page of paper from his sleeve, which had many tears, and looked like it would shatter at the slightest touch, and it could be seen that it had been many years.

"At that time, this page was hidden in a dusty book for many years, and when the lower official was rummaging through it, he accidentally turned it out."

"Therefore, Wei Chen copied the above words one by one, and went to consult all the Hanlin scholars, and finally roughly pieced together his meaning!"

Zhu Gaoyao carefully took the paper and laid it flat on the table.

"The text on this seems to be the small seal of the Qin State?"

Unexpectedly, this method actually appeared in the Spring and Autumn Period and the Warring States Period.

"And Xia Guan also followed the above method, and after many attempts and improvements, he finally made this red and yellow transformation of color-changing ink!"

Plugging foam is also easy to say, but the pigment dye is made into tiny pigment capsules, and then dissolved in the binder.

These small capsules can be small particles or large molecular structures.

Depending on these pigment particles, light is refracted at different angles to give different colors.

This is the most basic color-changing ink.

The method recorded on this fragile paper is roughly to aggregate some natural pigments into tiny structures and mix them into rice milk.

However, these natural pigments have a disadvantage, that is, these pigment particles are organic matter, which are easy to decompose quickly under conditions such as sunlight, temperature, humidity and time, and then lose their original color.

And the horizontal on this piece of paper is the best proof, it has only been painted for a long time, and the bright red and yellow on it already have a faint feeling, as if it has been sealed in the dust for a long time.

"Good!"

Although there is still a lot of difference from the final product required by Zhu Gao, this has undoubtedly solved a big problem, the manufacturing method of color-changing ink has been determined, and the most important thing left is to select the pigment raw materials that meet the requirements and can be stored for a long time!

"Yes, yes!"

Zhu Gaoyi was quite satisfied with this,

"Zhang Qixin, did you hear all the words they said just now?"

"Yes, Your Majesty, the guilty ministers heard it just now!"

"Okay, now that you know, I'll leave this matter to you!"

His Majesty is going to give himself the task, Zhang Qixin immediately raised his head after hearing this, this is the opportunity that His Majesty gave him, he must do this matter well, and he must not live up to His Majesty's grace to recreate himself!

"Please hand it over to the guilty minister, the criminal will definitely complete the task, and he will definitely not live up to His Majesty's expectations of the guilty minister!"

"As for you......"

At this time, Zhu Gaoyi turned around and looked at the official in charge of supervision this time.

"Good job, but I haven't thought of a reward for you yet, so let's just say one, as long as it's not too outrageous, I will satisfy you!"

"Your Majesty, thank you, Your Majesty, it is your duty for Weichen to make a contribution to my Ming Dynasty, how dare you ask Your Majesty for benefits!"

"Weichen and hope, can always surrender to the feet of His Majesty, do their best for the Ming Dynasty, and dedicate their lives, they are already satisfied!"

"Hmph, if you are meritorious, you will be rewarded, and if you are wrong, you will be punished, I will reward you if I say it myself, how can I not reward it?"

Zhu Gaoyi thought for a moment and made up his mind in his heart.

"In this way, I plan to set up a department in a while, and the name will be called the bank, to replace all the money banks in the world!"

Replace all the money banks?

Isn't this the management of money and the treasury?

"I will set up a central bank in the capital, and local banks will be set up in the localities, all of which are under the jurisdiction of my Ming Dynasty government!"

"And you, the president of this central bank, are responsible for wholesale loans, control the flow of funds in the world, and even have the right to mint money!"

After hearing this, the whole person floated to the sky, he didn't know what kind of official this bank was easy to find, but this is definitely a rich (negative) position, all the money in the world is under my jurisdiction, and I can even mint money!

It is no exaggeration to say that if I become the president of this bank and have a single round of money, then everyone in the world will be my younger brother in front of me! (End of chapter)