John F. Hawley
John F. Hawley (August 23, 1958 – December 12, 2021) was an American astrophysicist and a professor of astronomy at the University of Virginia. In 2013, he shared the Shaw Prize for Astronomy with Steven Balbus. Early life John Hawley was born in 1958 in Annapolis, Maryland. He is the younger brother of former astronaut Steven A. Hawley and graduated from Central High School in Salina, Kansas. Hawley is a graduate of Haverford College. He received his Ph.D. in astronomy from the University of Illinois at Urbana–Champaign in 1984. Professional career Hawley was a Bantrell Prize Fellow in Theoretical Astrophysics at the California Institute of Technology from 1984 to 1987. He then joined the faculty of the University of Virginia in 1987 as an assistant professor. He was promoted to full professor in 1999 and was chair of the Department of Astronomy from 2006 to 2012. As of 2015, Hawley is the Associate Dean for the Sciences in the College of Liberal Arts and Sciences. Hi ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Magnetorotational Instability
The magnetorotational instability (MRI) is a fluid instability that causes an accretion disk orbiting a massive central object to become turbulent. It arises when the angular velocity of a conducting fluid in a magnetic field decreases as the distance from the rotation center increases. It is also known as the Velikhov–Chandrasekhar instability or Balbus–Hawley instability in the literature, not to be confused with the electrothermal Velikhov instability. The MRI is of particular relevance in astrophysics where it is an important part of the dynamics in accretion disks. Gases or liquids containing mobile electrical charges are subject to the influence of a magnetic field. In addition to hydrodynamical forces such as pressure and gravity, an element of magnetized fluid also feels the Lorentz force \boldsymbol J\times\boldsymbol B\ , where \boldsymbol J is the current density and \boldsymbol B is the magnetic field vector. If the fluid is in a state of differential rotation ab ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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University Of Virginia Faculty
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic Church monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word ''universitas'' (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde' ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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California Institute Of Technology Faculty
The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasionally referred to as "CIT", most notably in its alma mater, but this is uncommon. is a private research university in Pasadena, California. Caltech is ranked among the best and most selective academic institutions in the world, and with an enrollment of approximately 2400 students (acceptance rate of only 5.7%), it is one of the world's most selective universities. The university is known for its strength in science and engineering, and is among a small group of institutes of technology in the United States which is primarily devoted to the instruction of pure and applied sciences. The institution was founded as a preparatory and vocational school by Amos G. Throop in 1891 and began attracting influential scientists such as George Ellery ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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University Of Illinois Urbana-Champaign Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic Church monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word ''universitas'' (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hil ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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American Astrophysicists
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the " United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soc ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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2021 Deaths
This is a list of deaths of notable people, organised by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked here. 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 See also * Lists of deaths by day * :Deaths by year, Deaths by year {{DEFAULTSORT:deaths by year Lists of deaths by year, ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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1958 Births
Events January * January 1 – The European Economic Community (EEC) comes into being. * January 3 – The West Indies Federation is formed. * January 4 ** Edmund Hillary's Commonwealth Trans-Antarctic Expedition completes the third overland journey to the South Pole, the first to use powered vehicles. ** Sputnik 1 (launched on October 4, 1957) falls to Earth from its orbit, and burns up. * January 13 – Battle of Edchera: The Moroccan Army of Liberation ambushes a Spanish patrol. * January 27 – A Soviet-American executive agreement on cultural, educational and scientific exchanges, also known as the " Lacy–Zarubin Agreement", is signed in Washington, D.C. * January 31 – The first successful American satellite, Explorer 1, is launched into orbit. February * February 1 – Egypt and Syria unite, to form the United Arab Republic. * February 6 – Seven Manchester United footballers are among the 21 people killed in the Munich air disaster in West Germany, on ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Run Run Shaw
Sir Run Run Shaw (19 November 1907 – 7 January 2014), also known as Shao Yifu and Siu Yat-fu, was a Hong Kong entertainment mogul and philanthropist. He was one of the most influential figures in the Asian entertainment industry. He founded the Shaw Brothers Studio, one of the largest film production companies in Hong Kong, and TVB, the dominant television company in Hong Kong. A well-known philanthropist, Shaw donated billions of Hong Kong dollars to educational institutions in Hong Kong and mainland China. More than 5,000 buildings on Chinese college campuses bear his name, as does Shaw College of the Chinese University of Hong Kong. He also established the Shaw Prize for Astronomy, Life Science & Medicine and Mathematical Sciences. Early life Shaw was born in Ningbo, Zhejiang, Qing China as the youngest of the six sons of Shanghai textile merchant Shaw Yuh Hsuen () (1866–1921) and his wife Wang Shun Xiang () (1871–1939). His name at birth was Shao Renleng (), w ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kung Fu Movies
Kung fu film () is a subgenre of martial arts films and Hong Kong action cinema set in the contemporary period and featuring realistic martial arts. It lacks the fantasy elements seen in ''wuxia'', a related martial arts genre that uses historical settings based on ancient China. Swordplay is also less common in kung-fu films than in ''wuxia'' and fighting is done through unarmed combat. Kung fu films are an important product of Hong Kong cinema and the West, where it was exported. Studios in Hong Kong produce both wuxia and kung fu films. History The kung fu genre was born in Hong Kong as a backlash against the supernatural tropes of wuxia. The wuxia of the period, called ''shenguai wuxia'', combined '' shenguai'' fantasy with the martial arts of wuxia. Producers of wuxia depended on special effects to draw in larger audiences like the use of animation in fight scenes. The popularity of shenguai wuxia waned because of its cheap effects and fantasy cliches, paving way for the ri ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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American Astronomical Society
The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the advancement of astronomy and closely related branches of science, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Its current mission is to enhance and share humanity's scientific understanding of the universe as a diverse and inclusive astronomical community. History The society was founded in 1899 through the efforts of George Ellery Hale. The constitution of the group was written by Hale, George Comstock, Edward Morley, Simon Newcomb and Edward Charles Pickering. These men, plus four others, were the first Executive Council of the society; Newcomb was the first president. The initial membership was 114. The AAS name of th ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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University Of Virginia
The University of Virginia (UVA) is a public research university in Charlottesville, Virginia. Founded in 1819 by Thomas Jefferson, the university is ranked among the top academic institutions in the United States, with College admissions in the United States, highly selective admission. Set within the The Lawn, Academical Village, a World Heritage Site, UNESCO World Heritage Site, the university is referred to as a "Public Ivy" for offering an academic experience similar to that of an Ivy League university. It is known in part for certain rare characteristics among public universities such as #1800s, its historic foundations, #Honor system, student-run academic honor code, honor code, and Secret societies at the University of Virginia, secret societies. The original governing Board of Visitors included three List of presidents of the United States, U.S. presidents: Thomas Jefferson, Jefferson, James Madison, and James Monroe. The latter as sitting President of the United ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |