"I remember that the title of the paper was ...... "Preliminary Study on the Eating Phenomenon of Muc2 and DCN Knockout Mice in Mice ", Shi Lingren pretended to pace, "The introduction is...... Tiger poison does not eat seeds, and it seems to work equally well in mammals such as mice. Researchers from the RIKEN Laboratory at a Japanese university reported in the new issue of the Journal of Neuroscience that they had revealed a mechanism by analyzing the nervous systems of laboratory rats to reveal the mechanism by which male rats could not participate in child-rearing. The researchers selected healthy single males and male rats and arranged them to live with their youngs, and found that in the past, single males would only attack young mice, while male rats would lick the bodies of other young mice, indicating that the argument about parenting behavior was not accurate.

The researchers further analyzed the nervous systems of the two groups of rats and found that the nerve cells deep in the lower part of the nose of the single male were able to receive pheromones released by the young mice, thus connecting the neural circuits in the brain responsible for attacking action. In the mouse father, this nerve cell usually loses its function and does not transmit pheromone messages. After the removal of this nerve cell, the single male not only stopped attacking the young mice, but also showed child-rearing behavior.

In the past, it was asserted that the male rats experienced cohabitation during mating and gestation, and their endocrine system changed, which affected certain neural circuits and inhibited their aggression. But now, the former is considered the result of genetic optimization. Kako Minami, who led the study, said the new findings will help elucidate neural mechanisms in male mammals. Oh...... This is not the University of Tokyo, but the Tokyo Vocational School, which was founded in 1881 by Shigenobu Okuma, the former prime minister of the Japanese Cabinet who went down due to a coup d'état, and has ...... of political economy, law, science, and English Waseda University! ”

"You ......" Li Nan's face was cloudy, "You are secretly investigating me?" ”

"I'm not an intelligence agency, and I don't have the leisure to do that...... I just read your memory, but I am famous for Waseda University, which is full of peach and plums, and the number of alumni who served as members of the two houses of thought after the war ranked second among Japanese universities, and the number of alumni who obtained barrister qualifications after the war ranked third among Japanese universities, and there were many firsts, so many powerful people washed the floor for him, so that the black history of Waseda University in the war of aggression against China was also obliterated.

By the way, you have a special obsession with the name Li Nan, so I took a closer look and found something interesting. "I glanced at Li Nan, countless wronged leaders can testify, for these information, Shi Ling people have the ability to never forget.

"Many years ago, an ordinary Chinese family gave birth to a pair of twin sisters, but they were separated shortly after birth, one of them was named Li Nan, who had been raised by her biological parents, and the other was abandoned because of a congenital genetic disease, and I don't know who adopted them - because the girl had lost her parents' memory, so there was no answer until her relatives were found."

"Now that technology is developing, can't you post a missing person notice or do a human flesh search on the Internet?" I couldn't help but ask.

"It's difficult, many people have a preconceived idea that twins grow up to be exactly the same, in fact, the so-called mutual birth, even when twins are generally side by side, they will be unexpectedly not similar, similar twins are rare."

Shi Lingren seemed to smile, "In short, many years later, the girl found her biological parents with the help of the 'well-wisher', and after verifying the secret characteristics, Chenghuan fell to her knees, and then also with the help of the 'well-wisher', a pair of sisters went to Japan to study together, the elder sister went to Tokyo University as she wished, and the younger sister ...... If she was still alive, she would have been a scholar, but unfortunately her life was not good, and the tabloids recorded that she fell seriously ill and died shortly after entering the country, however, there are some things that make me suspect that there is another story behind this. There's only one thing I'm not sure about right now...... This sister may feel that she is Li Dai Taozhuang, so she committed such a crime, but what if she is a peach herself, not Li? ”

"No" gasped, and Li Nan fell to the floor as if he had lost his strength, trembling constantly. "I could tell that if I pushed again, she was going to collapse, but the next moment, screaming like a ghost was turning her face blank again." You're enough...... What do you want to know? ”

――Come to "Pretend to be a Gentleman" with the heroine to discover the truth of the world, you can collect votes, share WeChat to earn points-

"I just think that the collapse of the shed in this coal mine is very special, even if it is a gas explosion or water seepage in the mine, there are signs, and according to the genealogical records, at that moment, the mine shook without warning, crushing many workers who were working. The steam surged up like a wave with billowing black smoke, which was coal mist from the deep coal mine, containing deadly particles that killed everyone in the mine, men, women and children. People can't help but suspect that it was not an accident at all, but a large-scale extermination, just like the killing of hundreds of skilled craftsmen who participated in the construction of the royal tomb after the emperor's burial in the past, those hundreds of Chinese workers were actually murdered by the mine owner and the Japanese secret service, right? Asked coldly, Shi Lingren's calm expression made me want to escape from the living room.

In the exploration of coal miners, there are some unknown discoveries, which are extremely common and not surprising, because they have made discoveries from time to time in the process of coal mining. While coal mine owners generally demand that workers keep silent, they don't blame workers if they brag about them. But if it involves Japan's economic aggression, it's a different matter. After all, the process of mining many bonanzas is uglier than drilling oil wells. Drilling oil wells can also be cleaned cleanly, but mining is not, and the arsenic in the dissolving agent used will seep into the groundwater, which will never be clean, and will be harmful to the local area for thousands of years.

Li Nan sighed and approached the fireplace under our gaze, "Teacher Shi, don't you think it's strange to build a big fireplace in such a modern building, even if it's too deliberate to remember the old mansion of the Liu family. You can find the pistol hidden inside the fireplace, why not keep looking? Under her hands, a corner of the fireplace made a "zaza" sound, and then the whole thing shifted out, revealing the secret room behind it.

The so-called 'secret room', in fact, is also surprisingly large, enough to accommodate at least 1,000 pieces of crafts of different sizes, and those handicrafts that have been sealed for a long time, the smallest one is the size of a fist, the big one is taller than a person, strange shape, it seems to be like a folk World Expo. It's just that I can recognize the capital jade kite, cloisonne carved lacquer, Dongyang wood carving, boxwood carving, Nanhu chrysanthemum stone carving and fireworks, Su Guangchuan South four famous embroidery, Jinmen handmade carpet and clay sculpture, Foshan lanterns, coconut carving and olive carving, Yixing and Xiaoxing purple sand pottery, Gusu sandalwood fan, Qingda shell carving, Huishan clay people, Yungui batik, Fushun coal carving, Gansu luminous cup, Sichuan porcelain bamboo weaving, Luoyang Tang Sancai, sea velvet embroidery, Hangzhou silk umbrella...... Is there a secret room just to display handicrafts?

When everyone found a suitable position, Li Nan stood in that corner. There are a lot of bits and pieces displayed in that corner, and there are special lighting equipment to make the colors of the displays clearer and more beautiful! Is that......

"It's coal spirit!" Shi Ling said affirmatively. Although his voice was not high, and he was only speaking to the people in front of him, it could also make his voice heard by the rest of the people. So not long after he started to speak, Li Nan's attention was also attracted by his words.

This is a term I have never heard before, and it makes me hate my loneliness in front of Shiling people again.

A coal mine is a place where coal is produced. Coal is a plant that is millions or even tens of millions of years old, and a large number of plant forests were buried in the ground due to changes in the earth's crust and formed after a long period of heavy pressure. People who live in modern metropolises are unlikely to be too impressed by such a thing as coal, and may not even have seen it. But leaving aside the fact that coal was the main source of energy in industry before oil and gas traveled, coal also played an important role in the daily lives of human beings in the past. For the ancient people, in the bitter cold weather, seeing a large lump of shiny, smooth and crystalline anthracite coal, it felt like a hungry person seeing fragrant rice.

China is the first country in the world to use coal as fuel. Coal mining began more than 3,000 years ago, and this black stone was used to heat water and cook rice. The artisanal coal industry was established in the Han and Tang dynasties, and coal was widely used in smelting and casting metals. It was only in the 9th century that the inhabitants of northeastern England began to use coal, which was called sea coal because it was found on the coast, a term derived from the ancient Anglo-Saxon word meaning to shine or burn stone. Coal has been used as a fuel for home heating and cooking in many parts of Europe for centuries. It was only in 1740 that coal was first mined in Virginia, USA.

It wasn't until the Industrial Revolution began in Britain that coal became the main source of energy for the monster of modern industry. It was not until 1719 that the geological occurrence of coal came to the attention of John Strachridge when he wrote a report on coal seams to the Royal Society of Scientists. Originally, coal was harvested from coastal outcrops, which were caused by the erosion of the seashore by seawater, which was very primitive. Dig a small mine and dig coal at the bottom of the mine until there is danger. The mine was abandoned and a new mine was dug in another part of the coal area. Because in the 17th century, the British needed fuel for steelmaking, and miners invested in coal mining. The trouble is that the mines dig deeper and deeper, and the seepage of groundwater from the mines often stops the mines. The deepest mine dug before the 18th century was 400 feet deep. In view of the flooding in the mine's working area, it had to be eliminated by means of a horizontal drift connected to the mine, which was not drained by pumps until the end of the 16th century. With the industrial revolution in Europe to the 19th century, the problem of coal mine safety became increasingly serious, although the development of science made the "civilized world" coal mining industry develop rapidly. But it did not reduce the number of miner deaths in Asia's sweatshops, and of course, the 20th-century Japanese company in Manchuria did not treat the lives of Chinese laborers as anything other than numbers.

I nodded as if I didn't understand, and I only heard Shi Lingren's methodical description.

Coal can be roughly divided into three categories: peat, bituminous coal and anthracite. Among them, anthracite is the oldest in formation, and it is also the most beautiful in shape and appearance. The fire emitted by the burning of anthracite is extremely hot, and the fire is a pleasant blue-white. It is also known as the so-called perfect fire. But anthracite coal is mostly hidden deep underground, and miners often have to work under hundreds of meters of deep cavities to extract anthracite.

There is also a very peculiar by-product in anthracite coal mines, called "coal essence". Coal is not a particularly valuable mineral, it is said to be the fat of trees, which is formed over time, in the same way that amber is formed. They are generally brownish-red transparent bodies, sometimes large, can weigh tens of kilograms, sometimes small, only the size of a finger or fist, and quite beautiful, quite precious amber, coal essence is not very famous.

However, in the world of literature and entertainment, coal essence, a crystalline mineral, naturally becomes a good material for handicrafts because of its crystal clearness. If the coal essence with beautiful color and luster, it is a good carrier of miniature carving handicrafts. Of course, what is displayed here is not coal fine handicrafts, but coal * ore. So, that corner is quite attractive! Before the ore original, Shi Lingren's words became more and more, and his expression was also very excited.

Under the guidance of Shi Lingren, I could see all kinds of luminous bodies at a glance, which contained organic coal essence, including brown citrine and ink crystal, nitrogen-containing yellow coal essence, manganese-containing purple coal essence, fiber-containing coal essence, and bubble crystals containing blisters. There is even a large cluster of irregularly column-shaped coal-essence crystalline raw ores—the marvelous creations of nature, which, in the right light, shone with an unpredictable and incomprehensible light, showing the earth's eternal mysteries, fascinating and bewildering—a sense of the insignificance of humanity in the face of this thousand-year-old history. In addition to me, Li Nan was also admiring, letting out a heartfelt admiration, and touched the irregular columnar crystals of coal essence with his fingers.

"But," I said timidly, "what is the use of this thing? "For me who needs to work and study, luxury jewelry is a sin, a handicraft that cannot be realized...... It's a burden.

Li Nan laughed softly: "Yes, what's the use of this thing, what's the use of amber?" Gold and silver jewelry, but gold and stone minerals, are not the same as being flocked. ”

"Amber is a tertiary pine and cypress plant resin, buried underground by geological action, after a long geological period, the resin loses its volatile components and polymerizes and solidifies, often produced in coal seams, and coal essence is accompanied. Because it is a hydrocarbon, it is soluble in alcohol. Contains succinic acid and amber resin with a chemical composition of 1016, of which 79% carbon, 105% hydrogen, 105% oxygen, and sometimes a small amount of hydrogen sulfide. The lower the succinic acid content, the clearer and more transparent the amber. Clear amber has a succinic acid content of 34%, and if the succinic acid exceeds 4%, it will appear cloud-like translucent. And foamy amber, succinic acid even exceeds 8%.

Eliminate those true and false drug uses, remove the so-called aura beauty that collectors sigh about, this beauty is noble but not public, dazzling but not vulgar, unique, so that people have endless collection thoughts, I prefer to hold a magnifying glass one by one to play and ponder, look at the lonely figure of small insects in amber, and imagine the changes of soil and animals and plants in ancient times. They were formed tens of millions of years ago, through countless centuries and eras, and when they came to me, did each piece have its own story? When Shi Lingren is lyrical, his tone is also like counting money.

This book has been put on the shelves, I hope you will go to the [Pretend to be a Gentleman] Panda to read the page of the book after reading the chapters to give support, every click, every collection, every monthly pass, every comment, every subscription is a great support for "Pretending to be a Ghost", and it is also the motivation for the author Potemkin to write.