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Today we're going to talk about one of the most far-reaching ideas in physics, it's called the principle of least action, and it's the idea underlying a vast amount of knowledge from Newtonian mechanics to relativity to quantum mechanics and quantum field theory. Suppose we have
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In order to stimulate the enthusiasm and creativity of the majority of scientific and technological workers and promote the rapid development of China's scientific undertakings, the Chinese Academy of Sciences organized the review and awards of major scientific research achieveme
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Extreme weather has occurred frequently in recent years. This year, India experienced the highest summer temperature ever recorded, and many countries also experienced rare droughts and floods. In recent years, the general feeling is that extreme weather has become more and more
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As of June 30, 2021, the company had 1,735 employees, including 891 R&D personnel, accounting for 51.35% of the total employees;
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Recently, a million-dollar blogger named "Tizi" made delicious food using sharks without posting it on the Internet platform, and then quickly left the circle. The blogger and his team in this video have been claiming that this is a sharp-toothed shark and that the channel is leg
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# punchcardchallengebureau# If #Fuji山# erupts, will Japan disappear from the face of the earth? Mount Fuji in Japan erupts once every 120 years on average, but the last time it erupted was in 1707, more than 300 years have passed. The current pressure in Mount Fuji has reached 1
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# punchchallenge# Many people know about the Tibetan antelope among the "Five Lucky Children of the Olympics" and the precious Mongolian antelope, but they may not necessarily know that there is a rarer antelope in China, which is called Przewalski's gazelle (also known as the Ch
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A rare sight! British media: Half a year after the Tonga volcano erupted, Antarctica now has beautiful skies. According to the British "Guardian" report on July 15, scientists recently discovered a rare sight over Antarctica: the sky over Antarctica, which should have been dark i
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Whenever we toss a coin in the air, we know it will come back because of gravity. Gravity is the most mysterious force in the universe, and scientists have been studying its origins for years, but now researchers are conducting a study that will change everything about our unders
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Recently I was reading "Monitor Lizard Mother" written by Shen Shixi. The cover of the book is a monitor lizard. The number of words is not too many at 119,000 words, so I decided to read it. It was wondering, wasn't Red Nail looking forward to its death? Seeing Red Nail being en
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In a short period of time, many cities in my country have reported the discovery of the Omicron BA.5 variant. What are the characteristics of this mutant strain? For China, are the existing prevention and control measures still effective? Dong Xiaoping, chief virology expert at t
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The moon is the closest planet to the earth and the brightest and easiest to observe celestial body in the earth's night sky. Interestingly, because the same side of the moon always faces the earth, for those of us living on the earth, we can only observe one fixed side of the mo
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According to foreign media reports, during the CT scan of a 40-year-old female mummy that died 2,400 years ago, scientists discovered that a three-inch-long object was stuck between the left parietal bone and the back end of the skull of the mummy. , the area was filled with rosi
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Tiny gelatinous droplets swirl perfectly in the water - their movement stirs up a force that attracts their neighbours. When enough of them come together, this synchronized dance arranges them into precise hexagonal, ordered, repeating patterns, just like the carbon atoms that ma
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On July 12, 2022, the team of Yin Yuxin from the Peking University-Tsinghua Life Sciences Joint Center and Peking University School of Basic Medicine published a research paper titled "RPA1 Controls Chromatin Architecture and Maintains Lipid Metabolic Homeostasis" online in the "
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In recent years, the field of artificial intelligence (AI) has made amazing progress, and the range of tasks that can be accomplished with ease has become wider and wider. We have to admit that in many aspects, artificial intelligence has surpassed humans, such as in video games,
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It’s good to have filial children. After I retired, my children bought this small two-story villa for the couple. The decorations were all according to the old man’s preferences, so that the couple could enjoy a comfortable and happy old age life. The children’s Filial piety is s
After retirement, I will buy a 2-story villa with simple decoration and comfort, so I can live leisurely and comfortably without my children.
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Everyone should be familiar with air testing. There are many types of air testing, and the air testing in different situations is also very different. Today I will talk to you about air testing related topics. There are many things we need to pay attention to when conducting air
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Which vacuum cleaner is better? The Bingzun vacuum cleaner stands out from the crowd! The development of technology has made cleaning tools more advanced and efficient, and vacuum cleaners are one of them. So which vacuum cleaner is better? The following is a popular science for
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Thanks to the author [Sue, Liuzhou, Guangxi] for the original and exclusive authorization, sharing, editing and compilation: [Succulent Plant Encyclopedia] Encyclopedia Jun coordinates: Guangxi Liuzhou City Succulent Plant Encyclopedia author 5 groups, in my mind like a tropical
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Everyone said that if they could have a villa with a patio at home, they would laugh secretly. In the end, I bought a patio with a patio, but I didn’t know how to install it. Leaving it there empty would be a waste! Speaking of this, I thought of the townhouses in Vietnam and the
It’s also a patio, but I prefer the one in Vietnam. I can plant flowers, relax and raise fish, and it’s more practical than Japan.
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Everyone should be familiar with air testing. Not only in home decoration, air testing in factory decoration is also very important. Today I will talk to you about air testing related topics. Many people will conduct air testing after renovating their new homes, so that they can
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