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Atoms are composed of nuclei and electrons. In the classical atomic model, electrons are thought to orbit the nucleus, much like the Earth orbits the Sun in the solar system. If that were the case, electrons would release energy (electromagnetic radiation) as they orbited the nuc
Electrons and atomic nuclei are negatively and positively charged respectively, so why don't electrons fall into the nucleus?
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Text | C Jun Ke Xun Typesetting | C Jun Ke Xun's headline number is an original article. Plagiarism is prohibited. Violators will be prosecuted. What does a photolithography machine mean?
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The surface of the earth is not a standard sphere. According to the measurement results in 2020, the height of Mount Everest is 8848.86m, and the depth of the Mariana Trench, the deepest trench on the earth, is 11034 m.
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Skin diseases are the fourth leading cause of human health problems, affecting nearly 900 million people around the world [1-2]. Dermatology drug development projects have increased significantly in recent years. Currently, there are hundreds of clinical trials ongoing or in the
Premier Insights: Research Design and Operational Considerations for Dermatology Clinical Trials in the New Era
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There are so many mosquitoes in summer, and it’s impossible to get rid of them all. Where do mosquitoes come from? In fact, mosquito larvae grow in water and are called larvae. This creature lives on aquatic bacteria and single-cell algae. When it grows to a certain stage, it wil
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Cadmium (Cd) pollution poses serious threats to crop growth and development, food safety and human health, and has become a potential agricultural and global environmental problem. Zinc (Zn) is used to reduce the accumulation of Cd in soil and plants. Proteins located on the plas
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Henan Daily Client Reporter Ke Yang and Li Xiaomin Azivudine, which has been approved to conduct phase III clinical trials for more than two years, is expected to become my country's first oral anti-COVID-19 drug with completely independent intellectual property rights! On July 1
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There is a kind of grass that is very magical. It can continue to survive for 10 years after leaving the land. Its roots can separate from the soil on their own and move with the wind. Even if it is dried to ashes, just put it in water. , it can come back to life again in a very
There is a kind of grass that cannot die. Have you seen it?
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At 5:06 pm on July 13, the moon moved to the closest "perigee" to the earth in the whole year, about 357,000 kilometers. By 2:38 am on the 14th, the moon, the earth and the sun were aligned in a straight line. At this time The moon was the roundest and golden yellow, so what peop
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Andromeda over the Sahara. The Andromeda Galaxy is the farthest thing we can see with the naked eye from Earth. The galaxy is about 2.5 million light-years away from Earth. In a few billion years it will collide with our Milky Way and eventually merge.
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Recently, the research group of Professor Zhou Pinghong from the Endoscopy Center of Zhongshan Hospital, Fudan University and the team of Professor Ji Minbiao from the Department of Physics of Fudan University have developed a fast pathological imaging technology based on femtose
The research group of Professor Zhou Pinghong of Zhongshan Endoscopy Center and the team of Professor Ji Minbiao of the Department of Physics of Fudan University collaborated to develop femtosecond stimulated Raman technology for rapid pathological diagnosis of endoscopic biopsy.
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This is because in her recent works, she used a shark weighing more than 100 kilograms. The program was well received and received 77,000 likes, but trouble came along with it.
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[USTC Alumni Foundation (ID: USTCIF), the most active USTC alumni organization in the world, publishes USTC news and alumni information in real time] Pan Jianwei’s team at USTC published a review of space quantum experiments in "Modern Physics Review", and Cao Yuan also Recently,
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This year, there are 40 days of dog days! The so-called "three dog days" refer to the collective name of the first, middle and last days. There are 30 or 40 days every year. Since the time between the Beginning of Autumn and "Geng Day" is not fixed every year, and the difference
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Water Characteristics Plants' dependence on water can be divided into two categories: aquatic plants and terrestrial plants. Aquatic plants basically cannot survive without water; terrestrial plants basically survive without water. Of course, just like amphibians, there are also
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Conference Background Spatial transcriptomics is the annual method selected by Nature methods in 2020. It is a new direction in the current field of single cell omics research and has broad application prospects in many clinical fields such as oncology, pathology, immunology, and
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The Party Branch of the Jianzhuang Taxation Office of the Jining High-tech Zone Taxation Bureau and the First Party Branch of China Tower Jining Branch jointly carried out a party day event with the theme of tax-enterprise party building and co-building to strengthen policy publi
Taxation joins hands with the Tower to help enterprises develop
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A few days ago, the Jining High-tech Zone Taxation Bureau held a symposium on key platform enterprises in the region to "send policies and ask for needs, mutual trust between tax and enterprises, and joint management of risks".
Sending policies and asking about needs, the High-tech Zone Taxation Bureau visited key platform companies
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At a time when expectations of a rate hike by the Federal Reserve have cooled, international oil prices edged higher following news that Saudi Arabia is not expected to increase production immediately. As of press time, international benchmark Brent crude oil rose nearly 2% to US
Oil prices edge higher as U.S. expects Saudi Arabia will not immediately increase oil production
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In the first half of this year, international oil prices experienced sharp ups and downs. Affected by the intensification of geopolitical conflicts and rising market panic, the intraday price of Brent crude oil futures once reached nearly US$140 per barrel on March 7. After the s
PetroChina’s half-year net profit exceeded 80 billion yuan, and CNOOC’s net profit exceeded that of last year’s full year
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With the comprehensive deepening of the intelligent and digital era, insurance users' demand for services is undergoing changes in many aspects: they have higher requirements for online service experience, and they also pay more attention to the warmth and humanization of service
How to withdraw insurance from Ping An? First of all, please stay away from the agent for insurance surrender.
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Time flies, and many beautiful things can only be reproduced through memories. I never thought that "youth" would be fleeting. When I opened the yellowed title page and read it again and again, I realized that youth is a hasty book... Those days when I wanted to grow up once felt
In my life, I will always retain a sincere heart
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