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Recently, a latest research jointly conducted by Chinese and foreign scientists successfully achieved direct imaging of the protostellar disk at the center of the Milky Way, "seeing" the "cradle of stars" at the center of the Milky Way for the first time. According to Chinese res
Dianjing Technology|Humanity “sees” the protostellar disk for the first time
05/18
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When the planet experiences events such as fault movement, rising magma flows, and massive landslides, energy is released, and seismic waves are one of the results. In a new study, scientists found that earthquakes occurred at similar locations in the Kermade Islands in the South
Study finds: Earth's outer core is changing over time
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Itching, swelling, and many people remember mosquitoes as a nasty presence in summer. In addition, mosquitoes also bring a variety of terrible mosquito-borne infectious diseases to people. In 2018, the eight infectious diseases of urgent concern announced by the World Health Orga
Tsinghua team reveals: Why are these people more attracted to mosquitoes?
05/19
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In recent years, our country has raised the concept of environmental protection to an unprecedented new level. The vast majority of Chinese people no longer miss the days when wild animals were regarded as food. Everyone naturally regards living creatures as neighbors and even fr
In order to protect the cubs, female bears in the wild have learned to seek help from humans and deal with violent males in estrus.
05/18
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According to reports, experts from the Japan Marine Research and Development Agency discovered an extremely rare giant fish in the deep sea. Its body is more than 2.5 meters long, its skin is dark blue-purple, and its mouth is split, making it look very strange. It is large, with
2,000 meters under the sea, a brand new species was discovered in Japan. It is huge. Has it mutated?
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The lobsters mentioned here specifically refer to the giant lobsters that live in the ocean. Their appearance is similar to the common lobsters in our lives, but their sizes are much larger. The reason why lobsters are said to be immortal is mainly related to an accidental captur
Theoretically, lobsters can live forever
05/18
1605
In cartoons, the "omnipotent" Doraemon often takes out various magical props from the future world from his four-dimensional pocket in order to help Nobita. They are full of creativity and science fiction imagination, just like Doraemon's pocket. It's an inexhaustible treasure ch
She has a "shrinking gun" that makes animals smaller than a fingernail, so cute
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Researchers test glass membrane roofs under real-life conditions in the rooftop greenhouse of the "Oberhausen Old Market Garden". (Source: Fraunhofer Umsicht) Glass roofs and architectural elements made of glass are not only visual highlights but also serve important functions. B
lightweight glass roof
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According to foreign media reports, Jeffrey Sachs, chairman of the COVID-19 Committee of the international medical journal The Lancet, said that the COVID-19 virus may not have come from nature, but may have originated from an accident in a US biotechnology laboratory. "In my opi
Scholars say the new coronavirus may have originated in a US laboratory and wait to see how they respond
05/19
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But dinosaurs luckily escaped this disaster and dominated the Jurassic and Cretaceous worlds. So, what was the cause of the mass extinction of terrestrial life at the end of the Triassic?
How to become a land overlord for 130 million years? Dinosaur: Put on a "down jacket"
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For the first time in the world, high-quality whole-genome data of E. ovodovi, an extinct Equus, was successfully obtained, and the evolutionary history of Equus was reconstructed. It was found that Ovodovi belongs to three subgenus of Equus, excluding horses, zebras and donkeys.
Ancient DNA research by a team from Jilin University and Northwest A&F University provides important evidence for the evolutionary history of Equus
05/20
1995
Earth farthest from the sun: orange sunset over water, with a ship in the foreground. On July 4, 2022, Earth will reach aphelion—our farthest point from the sun—at 7:00 UTC. But the Northern Hemisphere is experiencing its hottest summer, so you understand that our distance from t
Today, the Earth is farthest from the Sun
05/20
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Proteins usually need to "work" through conformational changes. However, existing tools for tracking conformational changes of proteins in living cells are still lacking, and in many cases they cause great interference to the system or are not scalable (1, 2).
Cell | New system for tracking dynamic changes in protein conformation in living cells
05/20
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It can be seen from the radar echo that the intensity of the convective cloud group entering the Shijiazhuang area is very high, and it has shown an obvious dark red color on the radar, indicating that the convective activity inside the cloud group is very intense, and there is a
tragedy! Eight people died while taking shelter from the rain in Shijiazhuang! How powerful is extreme weather?
05/20
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It’s not why tumors occur, but why they don’t occur so early and so frequently is a more puzzling question. Recently, a work by researchers such as Wellcome Sanger Institute Phil Jones made an important exploration into this. The researchers believe that one of the important mech
Nature | "Game theory" in the disappearing "micro-tumor" tissue
05/20
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In addition to the well-known particulate pollutants such as PM2.5, ozone is also an important indicator for evaluating air quality. So what exactly is ozone pollution? What's the harm? Ozone is an allotrope of oxygen. It is a colorless or light blue gas under normal temperature
What is ozone pollution? What's the harm?
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Life is a journey to an unknown destination. Many times we don’t know what kind of future we will encounter next. ..."Across the Ocean to See You". I have liked this song a long time ago. I was still young at that time and could not experience that feeling. Listening to it now, i
Dreams follow my wishes. Meet you
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What blessings are there in this life? In fact, the greatest blessing has only two words: health! Our bodies are free from disease and disaster, and our hearts are free from troubles. The happiest thing is not how many things are outside your body, but the people we care about, o
There are only three words in life, and every word is precious! (classic)
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Get up before 5 and read. On July 3rd, we will always be different. I have been working late on weekends recently. Faced with a tired body and unfulfilled responsibilities, if I am not careful, I will create a "joint force" of anxiety. It is always said that it is difficult to ha
On July 3rd, we will always be different
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1 All the glory and wealth in the world are inferior to a good friend. 2 No matter it is sentimental poems, beautiful articles, or leisure joy, nothing can replace the incomparable close friendship.
Classic quotes about friendship: Having a confidant in life is enough
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Traditional sunflowers have simple colors, such as red, pink, yellow, and white, but mine are a mix of two colors, such as light pink petals dyed red and white petals with dark pink stripes. I like it very much. This kind of striped flowers, because each of them is different, so
The most dazzling color among sunflowers is the striped q in the petals
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A complete printed version of the 2022 Qiqihar City High School Entrance Examination Chemistry Test Paper in Heilongjiang Province (with reference answers).
Complete printed version of the 2022 Qiqihar City High School Entrance Examination Chemistry Test Paper in Heilongjiang Province (with answers)
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