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Metals such as copper, silver, aluminum, and iron have strong electrical conductivity and are called conductors. Plastic, glass, rubber, porcelain, etc. are almost non-conductive and are called insulators. There is also a type of substance whose conductivity is between that of a
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In the hot summer, do you want to "cool off" or even miss the cold winter? Dog sleds are actually mostly used in the Arctic or around the Arctic, because there is snow all year round, making it difficult for vehicles or horses to move. Therefore, sled dogs with snow wolf genes ha
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1. Shale is a kind of [ ] rock, which is mainly formed from clay after a long period of deposition and subjected to a certain pressure and temperature. A. Sedimentation B. Metamorphism C. Magma Answer: A.
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Ruben Tommasi and other researchers from Entasis Therapeutics in the United States used new rational design methods to simultaneously optimize the biochemical efficacy and membrane permeability of the lead molecule, and successfully obtained a compound that can effectively inhibi
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We all know that electricity, as a product of the industrial revolution, is also one of the main energy sources for mankind. It not only replaced the previous steam power, but also greatly improved the production efficiency of factories. As a result, my country's manufacturing in
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The advantages and disadvantages here are not necessarily the literal meaning of strength or weakness, but rather the ability to adapt to the natural environment. There are 1.4 billion people in China and more than 7 billion people in the world. So many people are not worth menti
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Many oligonucleotide drugs require modifications where their phosphate bonds are connected to improve their absorption efficiency and stability (1). Oligonucleotide drugs usually need to be modified to improve stability and absorption efficiency (1). However, this also brings abo
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Flexible all-perovskite tandem solar cell with 24.7% efficiency Lightweight and flexible perovskites are very promising materials for manufacturing photovoltaics. However, the highest efficiency they have reported so far is about 20%, which is much lower than the efficiency of ri
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You must know why sea water is salty. Yes, because of the salt content (NaCl). Why is there salt in sea water, or not in rivers? In fact, both river water and sea water contain salt, but in different concentrations. In fact, the salt in the sea comes from land. Before there was w
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Inside a US hospital (data map) According to a report by NBC New York on the 5th, a new study from Yale University showed that a cancer patient in Connecticut, USA, was infected with the new coronavirus for 471 days. During this time, the virus mutated three times in his body. Th
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Engineers at Northwestern University have created a swarm of crab-like robots that could one day be used to perform complex tasks in small spaces. These robots are only half a millimeter wide, which might be a bit ridiculous in inches. They're made from a shape-memory alloy that
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What I find fascinating is how the proteins themselves actually become molecular machines, much like the kinesin GIF above or the ribosome below where some of the proteins assemble into biological machines.
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Sometimes diving to the bottom, sometimes coming out of the water, sometimes swimming... At the Baiji Dolphin House of the Institute of Hydrobiology, Chinese Academy of Sciences, the Yangtze finless porpoise baby "F9C22" is playing in the company of its mother "Fujiu". Mother and
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(Image source: Internet) Analog computers have been providing services to mankind long before digital computers swept the world. Now, the nature of quantum physics is causing us to reexamine the distinction between digital and analog. Quantum hardware companies like Pasqal are “e
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Clivia is raised at home, and most of the time it is spent admiring the leaves. It can only bloom in winter and spring. It only blooms once a year, and the flowering period is not very long. It can only be viewed for about half a month at most. However, many people buy Clivia and
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First of all, our most critical point in the design of the living room is to reflect its basic sense of comfort and grandeur. Only in this way can we better improve the overall visual effect of the space.
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When we design the entire home, we should not make it too complicated, otherwise the overall space will look too depressing, and the living room itself is the largest area in our entire home, so when we design It is even more necessary to make the entire space brighter and more a
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Financial News Agency, July 1 (Editor Ma Lan) Micron, one of the three giants of memory chips, hinted on Thursday that sales of smartphones and computers will be less optimistic in the rest of 2022. Micron, one of the major suppliers of memory chips for smartphones and computers,
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