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It might be tempting to use a cup with a green “Plant-Based” label for a cup of coffee, or see that the plastic utensils in your takeout are “100% compostable.” Some comfort. So could a plastic made from plants rather than petroleum actually melt harmlessly in the environment?
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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...
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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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my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful
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Since the terms information and entropy are used in many branches of science, this may sound strange to those familiar with the second law of thermodynamics. How could information and entropy be identical?
Conservation of information and the second law of thermodynamics, how can these basic laws be consistent?
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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.
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Wang Jianping: One article per day: "Theory of Perception." Part 9" (105) Why is a problem a problem? Why is there a problem? Existence has existed for hundreds of millions of years. Is there something wrong with existence? Logically speaking, there is definitely no problem. If t
A major turning point for mankind will occur: all problems will no longer be a problem
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Recently, a scientific research team from Tokyo Metropolitan University in Japan discovered a new type of compound that can capture carbon dioxide directly from the environment and achieve the highest carbon capture efficiency so far of 99%, which is twice the efficiency of other
Japanese scientists develop new carbon capture system that can quickly and directly capture low-concentration carbon dioxide
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Researchers including Daohua Jiang from the Institute of Physics, Chinese Academy of Sciences, and William Catterall and Ning Zheng from the University of Washington analyzed the structure of the open-state cardiac sodium channel (NaV1.5) and analyzed its working principle (1).
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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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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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Shotguns, as a standard military weapon, have a history that began in World War I. At that time, American soldiers carrying Winchester M1897 shotguns appeared on the battlefield, which really panicked the German army.
The close combat weapon of our special forces: the officially installed Type 09 military shotgun
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When it comes to shotguns, many people will think of the gun owner holding the gun tightly with both hands, and then the muzzle of the gun explodes with a loud noise - the powerful firepower can easily blast a big hole in a concrete wall, or tear a person in two. Cut off, or blow
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: The Megazord Hong Kong and Macao Chimp Qingwu column is a newly created individual weapons column created by Junwu. It does not seek the highest and most profound, but seeks the most informative! When talking about the word "continuous spray", everyone will think of B22 in CS -
Are shotguns suitable for street fighting? Stop making trouble, look at what the US military uses this super powerful semi-automatic shotgun for
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PlayerUnknown's Battlegrounds says: In front of trolls, all living beings are equal in PlayerUnknown's Battlegrounds. If you pick up a troll first when you land, as long as your marksmanship is not too good, you can basically kill one or two poor players.
Ranking of melee shotguns in PlayerUnknown’s Battlegrounds, the first place is the favorite of the public players
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In the article "Do you really know about the M870 shotgun, which has a total production of more than 11 million pieces and attracts more attention than the leopard print auntie?", the author promised readers: as long as the number of likes exceeds 50, I will write an article intr
Invincibility in close combat and long-range shooting is a mystery. Why is a shotgun, which is more primitive than a pickup truck, becoming the mainstream self-defense gun in the United States?
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As early as decades ago, revolvers withdrew from the field of combat pistols. Semi-automatic pistols occupied almost all tactical applications from law enforcement to VIP protection, and few people doubted this.
Pump type? Semi-automatic? Who do you think is the best tactical shotgun?
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