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A few days ago, a very spectacular scene appeared in the sky over Haikou, Hainan. I saw a mirage appearing in the sky in the distance. The outlines of the buildings inside were scattered and clear. The building complex shrouded in smoke was like a connected heavenly palace, like
There is a mirage in Hainan. Modern science has already explained it. Why do some netizens still think that it is a crisscross of time and space?
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Science fiction is the seed of imagination buried in everyone’s childhood. It is precisely because of the yearning and pursuit of science fiction that mankind has created scientific miracles one after another.
The universe is infinite and the imagination is even more amazing! 6 Classic Short Science Fiction Novels That Subvert Your Imagination
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All stars visible to the naked eye are part of the Milky Way. We know that our galaxy is not the only one, there are billions of galaxies forming galaxy clusters. These large concentrations of galaxies form larger structures—galaxy filaments and lobes. But there are huge gaps bet
What are cavities and where do they come from?
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In the first year of vaccinations - from December 8, 2020 to December 8, 2021 - both vaccines saved many lives, with the AstraZeneca vaccine protecting around 630,000 people, according to analytics firm Airfinity Ten thousand people were protected from the disease, with the Pfize
Airfinity: AstraZeneca and Pfizer coronavirus vaccines save more than 12 million lives
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Whenever the return capsule of a manned space flight lands safely, people are really relieved, which means that the astronauts have returned safely and smoothly. At this time, the return capsule was "beyond recognition", and the surface was as black as coal. It turned out that on
When returning to the atmosphere, the manned spacecraft was surrounded by raging fire. How did it prevent heat?
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This summer is really hot, and going out is like walking into a furnace. From July 12 to 13, the highest temperature in some areas of Shanghai reached 40 degrees Celsius for two consecutive days. Based on historical daily temperature data analysis, reporters from The Paper found
The hottest city in China back then is now only ranked sixth.
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According to the "Daily Star" news on July 13, a former engineer who claimed to have worked in Area 51, an alien gathering area, revealed that the United States is imprisoning aliens.
'Ex-Area 51 engineer' says US imprisons aliens and steals their technology
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Elephant (Poland) The general manager of the Słowámir Mrozzek Zoo is a careerist. For him, the animals in the garden are just steps for him to climb up. As for the unit under his jurisdiction's proper function of educating young people, he doesn't care at all. The giraffes in the
A short novel every day: "Elephant"
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Reply: Technologies that assist humans in enhancing their comprehensive self-support capabilities are positive labor productivity. Technologies that make humans lazy will only hinder humans from achieving long-term and sustained prosperity and development. For example, artificial
Technologies that assist humans in enhancing their comprehensive self-support capabilities are positive labor productivity
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As we all know, the intestinal microbiome (ie, intestinal flora) is the largest bacterial "reservoir" in the human body. It is closely related to human health and has been considered to cause obesity, metabolic syndrome, inflammatory diseases, and autoimmunity. disease, as well a
How do intestinal bacteria become pathogenic bacteria step by step? Yale scientist Nature publishes article to reveal mystery
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The summer solstice is the third day of the summer solstice, and the minor summer heat is the first day of the lunar month. Tomorrow is the 18th day of the sixth lunar month, which is the first day of the day.
As the old saying goes: "When the sun sets in Qinglong, autumn will be cool." If it sets in tomorrow, how long will it be hot this year?
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Lithium-sulfur batteries have an energy density of up to 2600 Wh kg-1 and are the next generation secondary batteries with great application prospects. However, there are several important scientific issues with sulfur cathodes that seriously affect the electrochemical performanc
Huazhong University of Science and Technology: Porosity design of high-loading sulfur cathode with high sulfur utilization rate
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At the beginning of the new year of 2019, on one side of the Yangtze River, a group of experts are busy working on something. The expert saw a Yangtze River paddlefish that was completely entangled in fishing nets right in front of him. Because the fishing net is too strong, the
After living for 150 million years, why can’t we survive 2020? A brief discussion on the tragic extinction of the Yangtze River paddlefish
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In the Mingxi Botanical Garden on Fudan's Jiangwan Campus, there is a small closed experimental area where genetically modified rice is grown. Careful people will find that although no pesticides are used here, the plants are exceptionally strong;
Devil or hero? Uncovering the Mystery of Genetically Modified Technology - Part One of a Series of Reports
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Introduction Designing bifunctional oxygen electrocatalysts with high activity, long-lasting stability, and low cost for rechargeable zinc-air batteries (RZABs) is a daunting challenge.
Progress in research on high-efficiency bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries
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He has successively won the Hou Debang Chemical Science and Technology Youth Award, Tianjin First Prize in Natural Science, Sichuan University Outstanding Scientific and Technological Talent Award, Sichuan University Young Scientific and Technological Talent Award, and the Minist
Sichuan University: N, S co-doped branched carbon nanotubes for supercapacitors and lithium batteries
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This article has a total of 7,000 words, mainly introducing the first, second and third chapters. The company specializes in the research and development, production and sales of key optical and optoelectronic products such as optical lenses, camera modules and touch display inte
Lianchuang Electronics: A must-have core target in the field of autonomous driving (1)
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As we all know, Xiaomi officially announced a global imaging strategic cooperation with Leica on May 23, marking the beginning of a new era of mobile imaging between Xiaomi and Leica. It also means the complete "breakup" of Huawei and Leica. So, some friends may ask, after "break
After "breaking up" with Leica, can Huawei mobile phones continue to dominate DxOMark's rankings?
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In 2009, it is a green and environmentally friendly company integrating R&D, production, sales and construction. Our company's main products include: building floor thermal insulation coatings, anti-corrosive pasting materials, polymer cement waterproof mortar, building waterproo
How much does a restaurant anti-slip agent cost?
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We have always known that there is no sewer pipe in the basement due to its location. Generally, the lowest point of the sewer pipe is around the first floor to connect with the municipal sewage pipe. Therefore, the sewage below this position must be reached this way. Location is
How do basement sewage pipes drain to the ground?
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It's so hot. It's much better than the top-sun-bottom roasting in Guangdong. If you haven't experienced it worse, you may not have a better ability to withstand it. If you want to have a foothold and have your own sky, you have to do what you think you can do better and better, b
The struggle of the unknown 20220713
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In this life of ours, you and I are both passers-by in this world, and neither you nor I have eternal pain. No matter how deep the wound is, it will always heal one day. Scars are the best proof of the journey we have taken.
In this life, there is no permanent pain, and there is never a hurdle that you cannot overcome.