As the founder of the United Nations, Downing did not attend the Constituent Assembly, but his influence was everywhere, and the paper used in each of the participants was his latest invention. The emergence of this kind of paper has been called "the revolution of paper" by scientists, which shows that it is not an ordinary product.

The raw material of this paper, cellulose, is the same as traditional paper, but it is processed into viscose, which looks more like glass and is transparent, so it is called cellophane. It uses a different display principle, and the method of color development is "structural color".

The story begins with a huge and beautiful butterfly in the Americas, this creature called the butterfly can reach 20 centimeters long after its wings are deployed, this butterfly is not a bird, and its wings are a charming blue, when it spreads its wings and flies, it is like a stunning blue light flashing in the green ocean of the Americas.

A shrewd engineer was fascinated by the butterfly's color and thought to himself that if he could extract this blue color and use it as a new pigment, he might be able to make a fortune, and he was convinced that people would love the new blue pigment.

After the engineer caught the butterfly, he went back and began to do scientific research, and his practical plan was as follows: first grind the wings into a very fine powder, and then use alcohol as a solvent to extract the pigment in it. In his past scientific career, he has successfully used this method to identify many pigments. This time, he was naturally full of confidence and believed that he would succeed.

This time, however, he was distressed to find that the butterfly's wings had been ground into powder and then disappeared. Does the grinding process destroy the chemical structure of the pigment? This seems impossible, how much strength is it to grind into powder, how can a chemical reaction occur?

But he thought that maybe the pigment was quite fragile, so he tried to extract it directly with alcohol without grinding, and then something even stranger happened—the wings soaked in alcohol turned green! Is alcohol chemically reacting with pigments?

When he took the butterfly out of the alcohol, it didn't take long for the flash blue to come back to life, and the engineer was puzzled and announced his discovery at the club of the Global Polytechnic University Alliance, which sparked a heated discussion.

Downing noticed the great discussion, and he did not participate in it, but the idea of using this way of producing color arose on a whim. This color does not require special chemical raw materials at all, and its appearance is determined by the microstructure of the surface of the butterfly's wings.

The wavelength of light determines the color of light, and the preference of a substance for the wavelength of light determines the color of the substance. For example, the red substance absorbs the colors of orange, yellow, green, blue, blue, purple and so on, so that our human eyes only see red.

However, the wavelength of light can be changed because light has interference and scattering phenomena. The wings of the butterfly are the use of light interference.

The microstructure of the butterfly's wings can cleverly combine two rays of light into one blue beam by taking advantage of the difference in distance.

But just one interference light intensity is not enough. That's why we see that the color on the bubbles is very light.

Under the microscope, we can see that the wings of the butterfly have small scales. The color formed by the combination of a large number of phosphorus tablets is very eye-catching!

That's the structural color. Most of the colors fade over time. This is because the oxygen in the air reacts chemically with the color.

However, the color composition of structural colors does not have this problem. If the Terracotta Warriors and Horses of Qin Shi Huang were to use structural colors, then they would never change color.

Archaeologists won't be disappointed that all the terracotta warriors and horses unearthed in an hour have faded.

Artificially creating a structural color requires not only a deep understanding of the reasons for its production, but also a powerful tool to process the surface of cellophane.

Downing uses a precision laser to form microstructures on the surface of cellophane. This technology is much more complex than it may seem at first glance. Just like LEDs, blue LEDs are much more difficult than red LEDs and green LEDs.

Sifting out lasers that can be used to fabricate glass microstructured surfaces is a difficult process. Even a team as strong as the Windsor Tech Empire can only display monochrome, that is, blue, on cellophane at the moment.

And the color isn't perfect. When the angler is smaller, a rainbow-like effect occurs. It is really good to use it on banknotes, but it is not too strict when used on strict occasions.

Downing will solve the monochromatic problem and the rainbow color problem in the second generation. The solution to the monochrome problem is to learn from peacocks.

The eyes on the peacock's feathers are not only blue, but also green and yellow. In order to achieve such an effect, the peacock's feathers have evolved more complexly.

Under the microscope, it is possible to see that there is a columnar structure with a diameter of 100 nanometers under the keratin. There are many air channels between them.

The blue feathers contain nine to twelve layers of pores, and the distance between the pores is 140 nanometers. If the distance between the holes is increased by ten nanometers, the feathers will turn green.

The yellow feathers contain only about six layers of pores, spaced around 165 nanometers apart. By constantly changing the "configuration", Downing's laser printers are able to create colorful worlds on cellophane. However, this kind of microstructured laser machine is not yet effective in the Constituent Assembly of the United Nations, because it is all written work.

Only in the future commercial and entertainment industries can the color microstructure be used in the "peacock-class" laser printer. All the colors on the cellophane are able to be reset by the high heat generated by the laser, so the cellophane can be used over and over again. The cost of a cellophane is a little more expensive than regular paper, but it can be used over and over again, so the overall cost is much smaller.

The microstructure of the "peacock" still has rainbow colors, and if you want to solve this problem, you have to learn from the kingfisher, whose feathers are also structural colors, but the rainbow phenomenon does not occur. Because kingfisher feathers use the principle of scattered color, which is the same as the principle that the sky is blue, we will not see the blue of the sky spontaneously turn into a rainbow.

Monochrome blue tone "Flash Butterfly Grade", color "Peacock Grade", perfect color "Kingfisher Grade", three-level microstructure laser printing cellophane technology, one level is more complex and advanced than the first, all of which can be done by using high-energy ultraviolet lasers.

Most of the chemical pigments are toxic, and some people are allergic to certain pigments, now it's okay, when our three-level god display technology matures, human beings no longer have to deal with a large number of chemical pigments every day, and the quality of life has gone to a great level.

In the future, there will be no more "printers run out of toner and ink cartridges!" "This kind of thing, that's more expensive than paper. The printer is also highly efficient, because there is no longer a need for preheating, and the laser is on call.

In the past, there was always a lingering smell after the newspaper was freshly baked, and in this way, many people used it for breakfast. Downing's invention of a chemical-free newspaper appeared with the United Nations Constituent Assembly, and The Telegraph spearheaded its use, selling that "food can be packed".

Indeed, the treatment of newspaper recycling is very simple, it is not simple to filter pigments, but now heat-resistant materials are used, and all the dirt can be burned off by laser, just like the cleaning method of Nanjing Yangtze River Bridge, and then put into microstructure printing, so the recycled newspaper is not only cleaned, but also sterilized at high temperature, and can really be used to package food.

The invention of the color of the three primary color printing factory is the world's largest newspaper printing foundry, they strongly urge customers to switch to cheap, non-toxic blue printing, because of the high reusability of cellophane, so that a considerable number of newspapers have realized the cost of zero paper, greatly reducing the cost, in the future there will be more free newspapers that sell pure advertising.

Don't look at our shelter with billboards is a nest for the poor and homeless, but it is a pioneer in the use of high-tech, the outdoor advertising industry is also destined to be changed by structural color technology, because they no longer have to work hard to brush, cover the surface of the billboard with a layer of micro-structured patterns, only need to use a laser machine that can move freely.

Water can change the color of the microstructure, so you have to add a layer of protective glass on it, which is just a small detail.

Changing the content of large-format ads has never been easier, and it doesn't cost much to change it once a day, let alone change it during the holidays, aesthetic fatigue, and bad mood. In the Bund and Wangfujing, which are high-priced and high-traffic sections, you can really change them every day.

This kind of technology that controls the two extremes, on the one hand, makes the newspaper a more environmentally friendly treatment of things that are lost on the same day, and on the other hand, the quality of old books and magazines is still quite high, and the washing and washing are the same as the new ones.

In the future, the old books that are sold by the pound will no longer be discriminated against, because after laser cleaning, they are almost like new ones, and they can almost be sold as new, which is cheaper for some criminals.

This technology cannot be used in displays, because high-energy ultraviolet rays are required to create microstructures, and it is not good to do this in front of the user's display every day.

Downing had missed the opportunity to turn his own statue of the king into ivory, but this time he could take advantage of the structural color technique. The statue can be coated with a layer of glass, and then a drone carrying a high-energy ultraviolet laser will fly around the huge statue until the entire statue is transformed into a miracle of color, which can shake the majesty of his old man to the fullest.

Now there are a lot of ** people who are amazed by the divine power of their improper Dharma King, and they are even more convinced by the brilliance on the statue.

Paint is a big business, those chemical factories in Europe and the Americas have felt an unprecedented chill, and the display scheme invented by Donald is to kill them