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The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast
Cold Knowledge of the Qing Dynasty - Metallurgical and Machinery Manufacturing Achievements of the Qing Dynasty
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Have you ever thought about the possibility of regenerating those brain cells you sacrificed in college? Medicine is being rewritten and we may be able to repair our brains, and it's something anyone can do.
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The spring itself is elastic. After being compressed, the spring will have the tendency to return to its initial state, and therefore has elastic potential energy. We can think of it as the energy stored in the overall system of the spring. So the question is Question: If a compr
Put a compressed spring into strong acid. After the spring dissolves, where does the energy of the spring go?
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Researchers such as Gao Fu from the Institute of Microbiology, Chinese Academy of Sciences, have just published an article in NEJM introducing the neutralizing ability of volunteer sera with different vaccination programs against Omicron subtypes. Under similar conditions, two do
Confused about how to get vaccinated? Pay attention to the latest NEJM work such as Gao Fu
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In Thailand, because most vaccinated people have no symptoms or very mild symptoms when infected with the new coronavirus Omicron variant, many people have the option of quarantining at home.
Thai experts explain: How long is enough for COVID-19 patients to be quarantined?
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[Source: Shunyi Ecological Environment] Ubiquitous plastic products have facilitated people's lives, but the resulting plastic waste has caused a lot of pollution to the ecological environment...
"Popular Science" "Degradable Plastics" Revealed
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In modern astronomical theory, the formation of important celestial objects such as double black holes, double neutron stars, and double white dwarfs are the result of the evolution of the shared envelope of binary stars. A few days ago, the research team of Academician Han Zhanw
An Appointment in the Starry Sky | Exploring the evolution of binary stars. Scientists found direct evidence of shared envelope evolution for the first time
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This article is original to the Translational Medicine Network. Please indicate the source when reprinting. Author: Lily Introduction: Fat cells can be divided into "white" and "brown" - white fat cells are responsible for storing fat, and their weight accounts for about 15%-20%
"Nature" rekindles brown fat cells and eliminates excess fat
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When it comes to invasive alien species, the first thing that comes to everyone's mind is that they have no natural enemies and reproduce wildly, seriously threatening the local ecological balance. Since the spring of 2022, a large number of invasive alien species have appeared i
A large number of white mud ants appear in Qingdao! A boat catches 200 kilograms a day, and not only are they inedible, but they also eat clams
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As we said before, oracle bones are keel bones and belong to the fossil category. So the first question is, did these fossils appear first and then people carved them on them, or did people find these bones first and carve words on them, and then these bones gradually evolved int
"Quest Files" Unsolved Mysteries of the World - The Black-Headed Man from the East 2
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Pictured above is Physarum polycephalum, a protist, specifically a slime mold. The term "slime mold" does not refer to a specific single group, but is a broad term referring to several types of eukaryotes that behave similarly. Regardless, they possess intelligence, although it l
Intelligent slime mold
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01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio
Golden sentence#星星——All my desires and contemplations are the slowly exhaled air currents of this universe.
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Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S.
Water was discovered in ancient galaxies, which surprised astronomers. What happened?
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Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th
Filling in many scientific research gaps! The China Spallation Neutron Source will be in operation for four years丨The party flag is flying high at the grassroots level
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In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality.
Introduction to applicable industries of mycotoxin detectors
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How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can
Instructions for using online residual chlorine analyzer
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Foreign Exchange Sky Eye APP News: Japan’s Buddhist approach to fighting the epidemic seems to be failing. However, compared with the Buddhist response to the epidemic, in the face of economic difficulties, the Japanese government launched an economic stimulus plan that is even m
Japan's economy is deteriorating rapidly, and Abe has made a big move! Allocate 20% of GDP to provide relief
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I won’t go into details about ulcerative colitis. Anyway, it gets sick when you’re under a lot of pressure. According to Abe-san’s tolerant character, he must have been intolerable... My grandfather was Japanese Prime Minister Nobusuke Kishi. He didn’t do anything good in China d
Shinzo Abe, who was so tired from working for 147 days that he vomited blood, was called Japan's Sima Yi and was definitely a ruthless character.
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According to multiple Japanese media reports, on August 17, Japanese Prime Minister Shinzo Abe entered Keio University Hospital in Shinanomachi, Tokyo. According to relevant sources at the hospital, Shinzo Abe underwent a physical examination on June 13 and is now undergoing furt
Japanese media reported that Abe was admitted to the hospital. There were previous rumors that he "vomited blood." The Prime Minister's Official Residence: It was just a physical examination.
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Recently, rumors that Japanese Prime Minister Shinzo Abe vomited blood have become one of the most concerning news in Japan. Abe's health problems were public. In 2006, Abe became prime minister for the first time, but resigned less than a year into his term due to the worsening
Japanese Prime Minister "vomited blood from exhaustion"? The epidemic is back again, and Abe’s pressure doubles
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Since the current Prime Minister Shinzo Abe announced his resignation, some important political figures have expressed their intention to participate in the next presidential election. In other words, at least the next prime minister should not be an Abe-style "powerful" figure.
Pan Nini: The "three arrows" that shape the "Abe-strong system" and their limits
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How would you feel if your income remained unchanged, but everything you bought was discounted by 13%? But at the same time, those who worked in Japan and sent the money they saved back home also left behind their hard-earned money. tears.
Yue Yongfan: In order to protect employment, Japan launched the "helicopter money" model
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