At this time, seeing that everyone was looking at him with a surprised look at a monster, Su Huai smiled slightly, gently unfolded the folding fan, glanced at Edogawa and said:

"Inspector Edogawa, just said that the oil paper umbrella is the traditional craft of the book, in fact, this is a great misunderstanding, although the oil paper umbrella was transmitted to Japan in the Tang Dynasty, but although the Japanese learned the oil paper umbrella, but the craft did not learn...... You use sesame oil, but Huaxia uses tung oil......"

"Tung oil?" was unfamiliar to everyone when they heard the word.

Su Huai knew they didn't understand, and explained:

"In fact, boiling tung oil has a long history in China, I have seen the folk materials, the Sui and Tang dynasties in China farmers have widely used tung oil, mainly in the southwest region, people live in most of the houses are wooden structures, need tung oil to coat to prevent insects, brighten; Oil lamps, inks, oil cloths, oil baskets.

In ancient times, tung oil, which made the best oil-paper umbrellas, according to records, was in the present-day Hongjiang area:

It is recorded in ancient books that 'tung oil is used as raw material, and the seed oil and washing oil squeezed out after the tung seeds are fried and dried are added, and then refined. Because of its red color......".

And this high-grade tung oil is not the golden or light yellow of ordinary tung oil, but shows a strong red texture, so it is also called "red oil", in ancient times, it was praised as the best in tung oil. Its unique waterproof, anti-seepage, anti-moth, anti-conch, and moss adsorption functions make it the main raw material for coating putty on the bottom of wooden sea boats......

And the oil paper umbrella is made of this bright red oil paper umbrella. ”

Su Huai said with a slight smile:

And this bright red tung oil umbrella has also become the festive color of China, and it also has a source.

The main thing is that the Chinese people worship the ancestors and ancestors: in many places, there is a custom of using oil paper umbrellas to worship the ancestors and ancestors.

The custom comes from the ancient Chinese Xia emperor wearing a yellow umbrella, indicating the supremacy. Using an oil-paper umbrella to sacrifice to ancestors or the deceased shows that they have a prominent position in the underworld, are not suffering, and can be reincarnated as soon as possible.

Then in the slow evolution, the whole of China with red oil paper umbrella on behalf of the festivities, in many places in our country, do longevity, marriage, childbirth, housewarming, high promotion and so on still maintain the custom of sending red oil paper umbrellas.

For example, the marriage between Xu Xian and the White Lady in "The Legend of the White Snake" is a red umbrella as a matchmaker. ”

Su Huai's introduction here is also meaningful:

"Many young people in modern times think that the red used for Chinese celebrations is too cheesy, and the furniture also likes to use dark red to look too deep, but they don't know that the ancient Chinese people liked to use red, not simply aesthetic taste, but practical, and there is Chinese medicine knowledge as a foundation in it.

For example, the oil-paper umbrella can not only block light, but also dialyze ultraviolet rays, play the role of sterilization and disinfection, which is very beneficial to users.

And Huaxia only uses black and white on a large scale at funerals, also because the deceased does not need such protection...... In fact, in the eyes of the ancient Chinese, it is very unsophisticated, and before the two get married into the cave room, they do not take ultraviolet light to disinfect, what if they are infected with any bad disease......

Su Huai was also interested when he said this, and appealed to the camera very conscientiously: "Friends, don't give up your health for the sake of beauty~~" completely forgot that this was a recording ...... His footage will not be broadcast at all.

The Edogawa superintendent and some of the audience at the scene couldn't close their mouths, and the aesthetics they were proud of, the beautiful and temperamental white paper umbrella, was not as good as the rustic red oil paper umbrella in China?

Chinese people only use black and white for funerals, and on other festive occasions, all use red, which is scientifically reasonable!?

This completely ridicules them for saying that they don't understand Chinese medicine, and learning to use sesame oil for oil-paper umbrellas is not nondescript at all......

Su Shengren satirized the Japanese oil-paper umbrella as worthless, leaving Edogawa and the audience speechless.

No one would have thought that Huaxia even has so many doorways for an oil-paper umbrella, and it is also related to the color tradition used in the country's festive season, which is really amazing when used as a traditional Chinese medicine knowledge.

Although Lukov was surprised by the mystery of this tung oil paper umbrella at the moment, he was still slightly displeased:

"We seem to have taken the topic too far, let's move on to the case. ”

Although Edogawa was reprimanded, she was extremely grateful to Lukov at the moment, and if Su Huai continued, she really had no face to stay on the stage.

Doyle, who was next to him, quickly picked up the topic and continued:

"Let's assume that this red oil-paper umbrella really has the function of ultraviolet rays, and if the 'blood shade' phenomenon is observed from the bones, then it can be inferred that the deceased was hit hard by a blunt object in front of him.

Because hemorrhage is a living reaction, it is only after the injury that a living organism produces bleeding and blood enters the tissues.

Blood can flow out of a wound formed by severing a blood vessel after death, but it is often only on the surface and does not enter the tissue. However, if death occurs within a very short period of time after the injury, the hemorrhagic manifestations are not obvious......

Therefore, relying solely on this method to draw definitive conclusions is not very reliable, and there are many influencing factors, such as the time of death, the manner of death, and so on. ”

Doyle suddenly interjected, pointing out another key, Jenny heard a glimmer of hope, and hurriedly guided in surprise:

"So this method is ingenious, but it is not accurate, and it cannot be used as a forensic basis?"

Lukov nodded:

"It's true to say that, it's obviously too arbitrary to use ultraviolet light to observe the shade of blood......"

But just when everyone thought that Lukov was on the side of Doyle's conclusion, the Russian expert said:

"However, in the plot, Song Ci used another method to supplement and improve the accuracy of the test, that is, the 'ink method'...... When a bone is damaged, there will be a thin slit that cannot be distinguished by the naked eye, and the ink will penetrate into it and leave marks, which can also prove that the bone has been hit hard...... With this addition, it's much more rigorous, but ......"

Speaking of this, everyone saw that Lukov was about to speak and stopped, looking at Su Huai, Jenny couldn't help but urge anxiously:

"Professor Lukov, if you think there is anything wrong with this, just say it. ”

Lukov stared at Su Huai and said in a deep voice:

"If you want the ink to penetrate into the subtle gaps of the bones, and the water will not fade, to be able to do this, the ink must have a very strong coloring ability, and delicate dyes, the ink is made of carbon, I'm afraid it can't reach this level, please ask Mr. Su, what's going on?"

Lukov previously questioned that it was impossible for the oil-paper umbrella to dialysis ultraviolet rays, and after being slapped in the face by Su Huai on the spot, this time he was not so confident.

The tone is a lot more polite, and I have already used the inquiring tone of "ask Mr. Su".

Everyone looked over, thinking that you have a doorway for the oil-paper umbrella just now, do you still have a doorway for this ink?