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Denise Kühnert and other researchers from the Max Planck Institute in Germany extracted hepatitis B virus sequences from 137 early human samples located in western Eurasia and the Americas from about 400 to 10,500 years ago and analyzed their evolution.
Science | The evolution of hepatitis B virus over the past ten thousand years
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At 20:50 on June 5, 2022, the Shenzhou 14 astronaut crew successfully entered the Tianhe core module. It has been a month now. Within a month, the astronauts carried out work such as establishing a manned environment, maintaining and caring for the space station platform, and con
"Shenzhou XIV" astronaut crew on-orbit progress chart
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If you ask an astronomer what is the most terrifying thing in the universe, he will definitely say black holes, because black holes can tear apart and imprison any matter, including light. This was predicted by Einstein's general theory of relativity, calculated by Karl Schwarzsc
It only takes one second to swallow the earth. A new type of black hole was discovered, which is 7,000 times brighter than the Milky Way.
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Probably because it is backed by stars and sea, astronomy can always stir up the mysterious romance of the universe. In the summer of 2021, a video on CCTV received 280,000 likes and became a hot search. The protagonists of the "cosmic romance" in the video are two college studen
In the solar system 200 million kilometers away from the earth, there is an asteroid named after this young man from Suzhou!
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Recently, CBS broke a piece of shocking news: a photo that may be an "alien shiti". It is said that this photo is related to the original "Roswell Alien Incident".
75 years later, the media found new evidence of the "Roswell UFO incident". Do aliens really exist?
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Did you know that the human brain is the most sophisticated and important organ in the world. It is composed of 200 billion brain cells, can store 100 billion pieces of information, generates thoughts that travel more than 300 miles per hour, has more than 100 megabytes of interl
Intellectual training 365 questions
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Stephen William Hawking is a world-famous physicist and a renowned scientific figure in the 20th century. He proposed the black hole area law, black hole evaporation theory and Hawking's universe model, and made foundational and pioneering works in the field of astrophysics. cont
Of Hawking's 4 predictions, 1 has come true and 2 are currently happening: Why should humans be wary of aliens?
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Virology is primarily concerned with viruses that are pathogenic to humans or other species of which we are most concerned. During the novel coronavirus pneumonia epidemic, scientists have conducted a lot of research on SARS-CoV-2, the pathogen that causes infection.
Research on new viruses and new hosts will vigorously promote the development of virology
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On May 16, 2022, skywatchers weren't the only ones observing the moon during the longest total lunar eclipse in three decades. Two satellites that maintain close and continuous surveillance on Earth also turned to search. In doing so, they observed dramatic and uneven temperature
"Space Observation" Use Landsat to observe the moon? It's not an accidental stroke of genius
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Early detection and diagnosis of disease can greatly reduce patient mortality, but this process requires highly sensitive detection of biomarkers. Currently, most detection methods can only be performed in vitro and require very high concentrations of biomarkers or limit of detec
Helps detect and diagnose Alzheimer's disease earlier! Deeptech team realizes new low-cost ultra-sensitive detection method
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If all deserts were turned into green spaces, it could have catastrophic consequences for Earth's entire ecosystem. For example, according to research conducted by NASA, dust from the Sahara Desert is carried by wind across the Atlantic Ocean to the Amazon rainforest, where it de
What if Earth’s deserts could be transformed into grasslands?
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Many fishing friends have such a habit. When they sit for a long time and have no food, the first thing they think of is to change the bait. But what kind of bait is the most direct and effective?
When there is no fishing for a long time, what kind of bait is the most direct and effective? Teach you a trick to do it easily
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Of course, at this time, many people may say that the US moon landing - the Apollo program is fake. We have explained this many times. The US moon landing plan is not fake. It was brought back during the Apollo program. One gram of lunar samples was also given to China.
US satellite lost contact while flying to the moon! Returning to the moon may be blocked again. When will China manned a manned landing on the moon?
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As a girl, I am actually resistant to the psychology of insects, but as a mother, I am brave. The saying "motherhood brings strength" is correct in this regard.
From today on, fall in love with the cute little insects
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As early as 1768, doctors discovered the limb regeneration ability of salamanders. Almost all salamander species can regenerate their tails, limbs, and even complete hearts.
Popular Science in Vernacular|What is the magical power of stem cells?
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(Image source: Internet) Recently, Quantum Source, a quantum computing startup based in Israel, announced that it has completed a $15 million seed round of financing led by Grove Ventures, Pitango First, and Eclipse Ventures.
Another million qubits! Israeli photonics startup completes $15 million in financing
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A Jiangnan ditty "Jasmine" was sung both north and south, and its beautiful melody was even selected into Western operas. Like the song, jasmine tea also traveled north and conquered the tongues of most northerners. The most important thing when choosing tea to drink in summer is
Flowers bloom in the south and drink in the north. What are the benefits of drinking jasmine tea in summer?
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Do you know how much the wages of decoration workers will be in 2022? According to data, the wages of decoration workers have been rising every year in the past two decades. Among them, the bricklayers who have seen the largest increase can earn more than a thousand yuan a day. I
It’s 2022, how can the decoration construction team find work?
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When decorating the living room, many people will design a TV background wall. The TV background wall can not only make the living room look more beautiful, but also make us more comfortable when watching TV. However, in recent years, more and more people have chosen not to insta
"All the rage" TV background wall, why many people don't install it, you will understand after watching it
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1. According to reports on July 6, Ruisixinke (Shenzhen) Technology Co., Ltd. has recently undergone industrial and commercial changes and added a new shareholder, Lenovo (Beijing) Co., Ltd. According to the data, Ruisixinke is an AI chip developer. The company was established in
BYD establishes battery and materials company, Lenovo invests in Ruisixinke
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Martial arts is the dream of the Chinese people. Everyone has read several martial arts novels and movies when they were young, and they yearn for that world of pleasure and revenge. Different from the fictional sects in other novels, Jinyiwei, Dongchang, Xichang and Six Gates ar
Among the four major organizations of the Ming Dynasty, Dongchang, Xichang, Jinyiwei and Liumen, which one is the most powerful?
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#Being deceived and spending time in virtual games, what will happen in the long run? #There is no need to ask if it will be good in the long run. The moment time is spent in virtual games, some negative effects will already come. Yes, games can make you happy and feel happiness
If you are deceived and waste your time in virtual games, what will you do in the long run?
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