They are Zhou Yan in the first class of the third year of high school and Li Qing in the second class of the third year of high school. When I saw the last photo, I couldn't help but be stunned.

The person in the photo is very familiar, and although it has eyes, it does not prevent me from making out of it. She is simply Zhao Yunhan's appearance. But under the photo, it is marked with the words "Class 7 of the third year of high school, Charlene".

From the comparison of photos, I can't tell what the difference between her and Zhao Yun is. Same clothes, same hairstyle. The height is about the same. Is this Zhao Yunhan's fake identity in Yuanling No. 1 Middle School, or is it impersonated by the owner of the anonymous letter? I'm afraid, only if you ask yourself, will it be clear.

I reached out and took down Charlene's photo, but I didn't expect a few pieces of paper to fall from the back of the photo, at the corner of the wall. The guardian woman's eyes were fast, and she copied it into her hand before it landed. I unfolded it, but found that it was an article handwritten in Zhao Yunhan's handwriting, and it couldn't be matched by the current situation.

The development of the article is very unexpected, it is actually a famous case more than 90 years ago. I've heard about this case as well.

As mentioned above:

In 1928, the bones of an Italian-American girl who had been buried for five years were opened for autopsy. The deceased's name was Emily Machia, and she had just turned 25 years old when she died.

Emily worked for the American Radium Company for four years, meticulously applying luminescent paint to the dials and hands of watches, and habitually sharpening the tips of her brushes with her tongue in order to correct the position of the tiny parts. In 1921, her last year at the Radium Company, she suddenly lost weight and had pain in her joints; She told the doctor that she was getting old.

The following year, Emily's dentist discovered that her jaw was almost off. This was followed by severe anemia and constant vomiting of blood. In September 1923, Emily stopped breathing. Her death report read: "Stomach ulcer".

Forensic Examiner in Essex, New Jersey, Harrison M. S. Matland, noting that Emily is a "dial artist". He believes that Emily's diagnosis is completely wrong, and he investigates the chemical element "radium" more deeply, believing that this may be the real culprit of death, because Emily's symptoms are exactly the same as those of radium poisoning in textbooks. But he did not blame the attending physician, he was shocked by the damage that this element can do to the human body. The title of his first report was simple: "Unknown Hazards of the Use of Radioactive Materials".

When Marie Curie discovered radium, rumors about this radioactive substance began to rise, and when doctors found that contact with radium could destroy tumors, radium became a big star. From cocktails to cosmetics, anything can be sold with a little radium. Among them, "tonic" and "luminous dial" are the largest consumption channels. At that time, doctors prescribed radium (quinine water) to patients to make them feel satisfied, and in World War I, the soldiers' luminous watches allowed them to safely check the time at night without lighting the battlefield lights, turning themselves into live targets. As a result, the "luminous watch" was a big hit after the war. The American Radium Company hired many female workers to paint luminous dials, and people called them "Radium Girls".

At that time, advertising for radium-containing cosmetics was a fashion.

But just how serious can the damage caused by radium be? In order to prove his claim that Emily died of radium, the medical examiner Matland decided to open the coffin for an autopsy, and in order to better detect the lethality of radium, he sought the help of Alexander Semele, a toxicologist at the New York Medical Examiner's Office, to measure the alpha rays emitted by the bones of the deceased. And in 1925 a report was issued warning the public of the danger.

Previously, the Radium girls had always believed that they were operating an absolutely safe chemical raw material. The mischievous young girl also smeared radium-containing paint on her hair and used it for manicures. Although this makes them more exposed to radium radiation, they are not too naughty to die. What really killed them was the paintbrush in their hand, the tip of which had to be kept gathered and sharp to draw the dial, so they smacked the tip of the pen with their lips, and every time they licked the tip, each time they swallowed a little more radium.

The radium girls who painted the dials at the American Radium Company were all irradiated.

In 1925, the Radium girls filed a collective lawsuit against the American Radium Company, and one of the girls had her hair shining in the dark. But fearing losing their jobs, most chose to settle, and only five girls insisted on the lawsuit, and it looked like their legal action was going to fail.

Radium, also known as the "bone eater", is chemically similar to calcium. So once radium is ingested into the human body, it enters the bones, just like calcium. Unlike other substances, radium, which is absorbed by the bones, remains in the body. As long as it remains in the human body, it decays in the body, and with the decay of radium, it produces two kinds of radiation: it is made up of two neutrons and two protons, if they are outside the body, there is no danger, but if they are in the body, they will beat the bones of the radium girl into a hornet's nest.

Needless to say, gamma rays, which are already dangerous, kill the bone marrow, so Radium Girl's body is unable to produce new red blood cells, causing anemia and weakness. As radium decays, radium becomes radon, a gas. Miss Radium ingested so much radium that she had radon gas in her breath.

Because the bone cells of the mandible are rapidly replaced, the most radium is absorbed. Miss Radium saw her teeth fall out and fall out, and her jaw was shaky. Some people were only able to have their jaws amputated, and the remaining bones became fragile. The joints start to ache and feel more and more tired. He was only in his 20s, and he died one by one.

The pessimists of the lawsuit were right, these girls were dying people, and the American Radium Company would not give in easily, and it took lawyers on both sides three years to get the verdict date in 1928. But before the verdict was announced, the decision of the forensic doctor Matlan to open the coffin and send Emily's body to New York for forensic examination completely ruined the company's wishful thinking.

The medical examiner in New York explained in detail how evidence could be obtained from decayed bones, drawing on the limited knowledge of radium at the time. The medical examiner scrapes the remaining tissue from the bones; Burn the bones to ashes. They collected the skull, five spine, five ribs, feet, femur, right tibia, right fibula. Rinse with soda for 4 hours. Scrub and air dry.

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