|
Zhou Peiyuan
Zhou Peiyuan (; August 28, 1902 – November 24, 1993) was a Chinese theoretical physicist and politician. He served as president of Peking University, and was an academician of the Chinese Academy of Sciences (CAS). Born in Yixing, Jiangsu, China, Zhou graduated from Tsinghua University in 1924. Then he went to the United States and obtained a bachelor's degree from University of Chicago in spring of 1926, and a master's degree at the end of the same year. In 1928, he obtained his doctorate degree from California Institute of Technology under Eric Temple Bell with thesis ''The Gravitational Field of a Body with Rotational Symmetry in Einstein's Theory of Gravitation''. In 1936, he studied general relativity under Albert Einstein in the Institute for Advanced Study in Princeton, New Jersey. He did his post-doc researches in quantum mechanics at University of Leipzig in Germany and Swiss Federal Institute of Technology Zurich. He was a professor of physics at Peking University, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhou (surname)
Zhōu () is a Chinese surname, Chinese-language surname. In places which use the Wade–Giles romanization such as Taiwan, Zhou is usually spelled as Chou, and it may also be spelled as Chiau, Chau, Chao (surname), Chao, Chew (surname), Chew, Chow (surname), Chow, Chiu, Cho, Chu, Jhou, Jou, Djou, Jue, Jow, Joe, or Tseu, depending on regional pronunciation. In classical genealogy, the main origin of the surname 周 (Zhou) derives from the royal members of the house of Zhou, originally surnamed Ji (surname 姬), 姬 (Ji). They were the descendants of King Ping of Zhou, adopted the surname 周 (Zhou) after the fall of the Zhou dynasty. Zhou ranks as the 10th most common surname in mainland China . In 2013 it was found to be the 10th most common name, shared by 25,200,000 people or 1.900% of the population, with the province with the most being Hunan. Derived from the Zhou dynasty, it has been one of the ten list of common Chinese surnames, most common surnames in China since the Yu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swiss Federal Institute Of Technology Zurich
ETH Zurich (; ) is a public university in Zurich, Switzerland. Founded in 1854 with the stated mission to educate engineers and scientists, the university focuses primarily on science, technology, engineering, and mathematics. ETH Zurich ranks among Europe's best universities. Like its sister institution EPFL, ETH Zurich is part of the Swiss Federal Institutes of Technology Domain, a consortium of universities and research institutes under the Swiss Federal Department of Economic Affairs, Education and Research. , ETH Zurich enrolled 25,380 students from over 120 countries, of which 4,425 were pursuing doctoral degrees. Students, faculty, and researchers affiliated with ETH Zurich include 22 Nobel laureates, two Fields Medalists, three Pritzker Prize winners, and one Turing Award recipient, including Albert Einstein and John von Neumann. It is a founding member of the IDEA League and the International Alliance of Research Universities (IARU), and a member of the CE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Educators From Wuxi
A teacher, also called a schoolteacher or formally an educator, is a person who helps students to acquire knowledge, competence, or virtue, via the practice of teaching. ''Informally'' the role of teacher may be taken on by anyone (e.g. when showing a colleague how to perform a specific task). In some countries, teaching young people of school age may be carried out in an informal setting, such as within the family (homeschooling), rather than in a formal setting such as a school or college. Some other professions may involve a significant amount of teaching (e.g. youth worker, pastor). In most countries, ''formal'' teaching of students is usually carried out by paid professional teachers. This article focuses on those who are ''employed'', as their main role, to teach others in a ''formal'' education context, such as at a school or other place of ''initial'' formal education or training. Duties and functions A teacher's role may vary among cultures. Teachers may provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Institute Of Technology Alumni
California () is a state in the Western United States that lies on the Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares an international border with the Mexican state of Baja California to the south. With almost 40million residents across an area of , it is the largest state by population and third-largest by area. Prior to European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. European exploration in the 16th and 17th centuries led to the colonization by the Spanish Empire. The area became a part of Mexico in 1821, following its successful war for independence, but was ceded to the United States in 1848 after the Mexican–American War. The California gold rush started in 1848 and led to social and demographic changes, including depopulation of Indigenous tribes. It organized itself and was admitted as the 31st state in 1850 as a free state, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1993 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1902 Births
Events January * January 1 ** The Nurses Registration Act 1901 comes into effect in New Zealand, making it the first country in the world to require state registration of nurses. On January 10, Ellen Dougherty becomes the world's first registered nurse. ** Nathan Stubblefield demonstrates his Mobile phone, wireless telephone device in the U.S. state of Kentucky. * January 8 – A train collision in the New York Central Railroad's Park Avenue Tunnel (railroad), Park Avenue Tunnel kills 17 people, injures 38, and leads to increased demand for electric trains and the banning of steam locomotives in New York City. * January 23 – Hakkōda Mountains incident: A snowstorm in the Hakkōda Mountains of northern Honshu, Empire of Japan, Japan, kills 199 during a military training exercise. * January 30 – The Anglo-Japanese Alliance is signed. February * February 12 – The 1st Conference of the International Woman Suffrage Alliance takes place in Washing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reynolds Stress
In fluid dynamics, the Reynolds stress is the component of the total stress tensor in a fluid obtained from the averaging operation over the Navier–Stokes equations to account for turbulent fluctuations in fluid momentum. Definition The velocity field of a flow can be split into a mean part and a fluctuating part using Reynolds decomposition. We write :u_i = \overline + u_',\, with \mathbf(\mathbf,t) being the flow velocity vector having components u_i in the x_i coordinate direction (with x_i denoting the components of the coordinate vector \mathbf). The mean velocities \overline are determined by either time averaging, spatial averaging or ensemble averaging, depending on the flow under study. Further u'_i denotes the fluctuating (turbulence) part of the velocity. We consider a homogeneous fluid, whose density ''ρ'' is taken to be a constant. For such a fluid, the components ''τ''ij'' of the Reynolds stress tensor are defined as: :\tau'_ \equiv \rho\,\overline,\, Anot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhou Peiyuan
Zhou Peiyuan (; August 28, 1902 – November 24, 1993) was a Chinese theoretical physicist and politician. He served as president of Peking University, and was an academician of the Chinese Academy of Sciences (CAS). Born in Yixing, Jiangsu, China, Zhou graduated from Tsinghua University in 1924. Then he went to the United States and obtained a bachelor's degree from University of Chicago in spring of 1926, and a master's degree at the end of the same year. In 1928, he obtained his doctorate degree from California Institute of Technology under Eric Temple Bell with thesis ''The Gravitational Field of a Body with Rotational Symmetry in Einstein's Theory of Gravitation''. In 1936, he studied general relativity under Albert Einstein in the Institute for Advanced Study in Princeton, New Jersey. He did his post-doc researches in quantum mechanics at University of Leipzig in Germany and Swiss Federal Institute of Technology Zurich. He was a professor of physics at Peking University, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Mechanics
Quantum mechanics is the fundamental physical Scientific theory, theory that describes the behavior of matter and of light; its unusual characteristics typically occur at and below the scale of atoms. Reprinted, Addison-Wesley, 1989, It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics can describe many systems that classical physics cannot. Classical physics can describe many aspects of nature at an ordinary (macroscopic and Microscopic scale, (optical) microscopic) scale, but is not sufficient for describing them at very small submicroscopic (atomic and subatomic) scales. Classical mechanics can be derived from quantum mechanics as an approximation that is valid at ordinary scales. Quantum systems have Bound state, bound states that are Quantization (physics), quantized to Discrete mathematics, discrete values of energy, momentum, angular momentum, and ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Einstein
Albert Einstein (14 March 187918 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity. Einstein also made important contributions to quantum mechanics. His mass–energy equivalence formula , which arises from special relativity, has been called "the world's most famous equation". He received the 1921 Nobel Prize in Physics for . Born in the German Empire, Einstein moved to Switzerland in 1895, forsaking his German citizenship (as a subject of the Kingdom of Württemberg) the following year. In 1897, at the age of seventeen, he enrolled in the mathematics and physics teaching diploma program at the Swiss ETH Zurich, federal polytechnic school in Zurich, graduating in 1900. He acquired Swiss citizenship a year later, which he kept for the rest of his life, and afterwards secured a permanent position at the Swiss Patent Office in Bern. In 1905, he submitted a successful PhD dissertation to the University of Zurich. In 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Relativity
General relativity, also known as the general theory of relativity, and as Einstein's theory of gravity, is the differential geometry, geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General theory of relativity, relativity generalizes special relativity and refines Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time in physics, time, or four-dimensional spacetime. In particular, the ''curvature of spacetime'' is directly related to the energy and momentum of whatever is present, including matter and radiation. The relation is specified by the Einstein field equations, a system of second-order partial differential equations. Newton's law of universal gravitation, which describes gravity in classical mechanics, can be seen as a prediction of general relativity for the almost flat spacetime geometry around stationary mass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric Temple Bell
Eric Temple Bell (7 February 1883 – 21 December 1960) was a Scottish-born mathematician, educator and science fiction writer who lived in the United States for most of his life. He published non-fiction using his given name and fiction as John Taine. Early life and education Eric Temple Bell was born in Peterhead, Aberdeen, Scotland as third of three children to Helen Jane Lyall and James Bell Jr. His father, a factor, relocated to San Jose, California, in 1884, when Eric was fifteen months old. After his father died on 4 January 1896, the family returned to Bedford, England. Bell was educated at Bedford Modern School, where his teacher Edward Mann Langley inspired him to continue the study of mathematics. Bell returned to the United States, by way of Montreal, in 1902. He received degrees from Stanford University (1904), the University of Washington (1908), and Columbia University (1912) (where he was a student of Cassius Jackson Keyser). Career Bell was part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
