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Lisa Randall
Lisa Randall (born June 18, 1962) is an American theoretical physicist and Frank B. Baird, Jr. Professor of Science at Harvard University. Her research includes the fundamental forces of nature and dimensions of space. She studies the Standard Model, supersymmetry, possible solutions to the hierarchy problem concerning the relative weakness of gravity, cosmology of dimensions, baryogenesis, cosmological inflation, and dark matter. She contributed to the Randall–Sundrum model, first published in 1999 with Raman Sundrum. Early life and education Randall was born in Queens, New York City, New York. She graduated from Stuyvesant High School in 1980, where she was a classmate of fellow physicist and science popularizer Brian Greene. She won first place in the 1980 Westinghouse Science Talent Search at the age of 18 and was also named a National Merit Scholar. She attended Harvard University, where she took Math 55, earned a BA in physics in 1983 and a PhD in theoretic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queens
Queens is the largest by area of the Boroughs of New York City, five boroughs of New York City, coextensive with Queens County, in the U.S. state of New York (state), New York. Located near the western end of Long Island, it is bordered by the borough of Brooklyn and by Nassau County, New York, Nassau County to its east, and shares maritime borders with the boroughs of Manhattan, the Bronx, and Staten Island, as well as with New Jersey. Queens is one of the most linguistics, linguistically and ethnically diverse places in the world. With a population of 2,405,464 as of the 2020 United States census, 2020 census, Queens is the second-most populous county in New York state, behind Kings County (Brooklyn), and is therefore also the second-most populous of the five New York City boroughs. If Queens were its own city, it would be the List of United States cities by population, fourth most-populous in the U.S. after the rest of New York City, Los Angeles, and Chicago. Queens is the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hierarchy Problem
In theoretical physics, the hierarchy problem is the problem concerning the large discrepancy between aspects of the weak force and gravity. There is no scientific consensus on why, for example, the weak force is 1024 times stronger than gravity. Technical definition A hierarchy problem occurs when the fundamental value of some physical parameter, such as a coupling constant or a mass, in some Lagrangian is vastly different from its effective value, which is the value that gets measured in an experiment. This happens because the effective value is related to the fundamental value by a prescription known as renormalization, which applies corrections to it. Typically the renormalized value of parameters are close to their fundamental values, but in some cases, it appears that there has been a delicate cancellation between the fundamental quantity and the quantum corrections. Hierarchy problems are related to fine-tuning problems and problems of naturalness. Throughout the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Merit Scholarship Program
The National Merit Scholarship Program is a United States academic scholarship competition for recognition and university scholarships. The program is managed by the National Merit Scholarship Corporation (NMSC), a privately funded not-for-profit organization based in Evanston, Illinois. The program began in 1955. Each year, the NMSC conducts a competition that is open to all students who meet the entry requirements. Until 2015, the NMSC also administered the National Achievement Scholarship Program, which was specifically for African-American students.NMSC Vital Facts – United Negro College Fund The highest performers in the National Merit Scholarship Program are named National Merit Scholars. Finalists and Semifinalists are also recognized for their academic and extracurricular achievements. Commen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westinghouse Science Talent Search
Westinghouse may refer to: Businesses Current companies *Westinghouse Electric Corporation, the company that manages the Westinghouse brand, with licensees: **Westinghouse Electric Company, providing nuclear power-related services ** Westinghouse Electronics, which sells LED and LCD televisions ** Russell Hobbs, Inc., licensed to make small appliances such as vacuum cleaners under the Westinghouse name, from 2002 to 2008 * Westinghouse Air Brake Technologies Corporation, a transport technology company commonly known as Wabtec * Siemens Energy Sector, the acquired non-nuclear energy divisions of Westinghouse Electric Former companies and divisions *Westinghouse Electric Corporation, renamed CBS Corporation in 1997 **Westinghouse Broadcasting (Group W), now integrated into CBS Broadcasting, Inc. ** White-Westinghouse, acquired by Electrolux in 1986 ** Westinghouse Electronic Systems Group, sold to Northrop Grumman in 1996 ** British Westinghouse, later subsumed into the Gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia University
Columbia University in the City of New York, commonly referred to as Columbia University, is a Private university, private Ivy League research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church (Manhattan), Trinity Church in Manhattan, it is the oldest institution of higher education in New York (state), New York and the fifth-First university in the United States, oldest in the United States. Columbia was established as a Colonial colleges, colonial college by royal charter under George II of Great Britain. It was renamed Columbia College (New York), Columbia College in 1784 following the American Revolution, and in 1787 was placed under Trustees of Columbia University in the City of New York, a private board of trustees headed by former students Alexander Hamilton and John Jay. In 1896, the campus was moved to its current location in Morningside Heights and renamed Columbia University. Columbia is organized into twenty schoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Greene
Brian Randolph Greene (born February 9, 1963) is an American physicist known for his research on string theory. He is a professor of physics and mathematics at Columbia University, director of its center for theoretical physics, and the chairman of the World Science Festival, which he co-founded in 2008. Greene co-discovered mirror symmetry, relating two different Calabi–Yau manifolds. He also described the flop transition, a mild form of topology change, and the conifold transition, a more severe transformation of space, showing that topology can smoothly change in string theory. His books '' The Elegant Universe (1999)'', '' The Fabric of the Cosmos (2004)'', '' The Hidden Reality (2011)'', and ''Until the End of Time'' (2020) were all top 10 New York Times bestsellers. Greene hosted two Emmy and Peabody Award Winning NOVA miniseries based on his books. He also appeared on '' The Big Bang Theory'' episode " The Herb Garden Germination", as well as in the films '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edge
Edge or EDGE may refer to: Technology Computing * Edge computing, a network load-balancing system * Edge device, an entry point to a computer network * Adobe Edge, a graphical development application * Microsoft Edge, a web browser developed by Microsoft * Microsoft Edge Legacy, a discontinued web browser developed by Microsoft * EdgeHTML, the layout engine used in Microsoft Edge Legacy * ThinkPad Edge, a Lenovo laptop computer series marketed from 2010 * Silhouette edge, in computer graphics, a feature of a 3D body projected onto a 2D plane * Explicit data graph execution, a computer instruction set architecture Telecommunication(s) * EDGE (telecommunication), a 2G digital cellular communications technology * Edge Wireless, an American mobile phone provider * Motorola Edge series, a series of smartphones made by Motorola * Samsung Galaxy Note Edge, a phablet made by Samsung * Samsung Galaxy S7 Edge or Samsung Galaxy S6 Edge, smartphones made by Samsung * Ubuntu Edge, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stuyvesant High School
Stuyvesant High School ( ) is a co-ed, State school, public, college-preparatory, Specialized high schools in New York City, specialized high school in Manhattan, New York City. The school, commonly called "Stuy" ( ) by its students, faculty, and alumni, specializes in developing talent in math, science, and technology. Operated by the New York City Department of Education, specialized schools offer Tuition payments, tuition-free, advanced classes to New York City high school students. Stuyvesant High School was established in 1904 as an all-boys school in the East Village, Manhattan, East Village of lower Manhattan. Starting in 1934, admission for all applicants was contingent on passing an entrance examination. In 1969, the school began permanently accepting female students. In 1992, Stuyvesant High School moved to its current location at Battery Park City to accommodate more students. The old campus houses several smaller high schools and charter schools. Admission to Stuyve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York State
New York, also called New York State, is a state in the northeastern United States. Bordered by New England to the east, Canada to the north, and Pennsylvania and New Jersey to the south, its territory extends into both the Atlantic Ocean and the Great Lakes. New York is the fourth-most populous state in the United States, with nearly 20 million residents, and the 27th-largest state by area, with a total area of . New York has a varied geography. The southeastern part of the state, known as Downstate, encompasses New York City, the most populous city in the United States; Long Island, with approximately 40% of the state's population, the nation's most populous island; and the cities, suburbs, and wealthy enclaves of the lower Hudson Valley. These areas are the center of the expansive New York metropolitan area and account for approximately two-thirds of the state's population. The larger Upstate area spreads from the Great Lakes to Lake Champlain and includes the Adiro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Review Letters
''Physical Review Letters'' (''PRL''), established in 1958, is a peer-reviewed, scientific journal that is published 52 times per year by the American Physical Society. The journal is considered one of the most prestigious in the field of physics. Over a quarter of Physics Nobel Prize-winning papers between 1995 and 2017 were published in it. ''PRL'' is published both online and as a print journal. Its focus is on short articles ("letters") intended for quick publication. The Lead Editor is Hugues Chaté. The Managing Editor is Robert Garisto. History The journal was created in 1958. Samuel Goudsmit, who was then the editor of '' Physical Review'', the American Physical Society's flagship journal, organized and published ''Letters to the Editor of Physical Review'' into a new standalone journal'','' which became ''Physical Review Letters''. It was the first journal intended for the rapid publication of short articles, a format that eventually became popular in many other fiel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raman Sundrum
Raman Sundrum (born 1964) is an Indian-American theoretical particle physicist. He contributed to the field with a class of models called the Randall–Sundrum models, first published in 1999 with Lisa Randall. Sundrum is a Distinguished University Professor at the University of Maryland and the director of Maryland Center for Fundamental Physics. Biography Sundrum did his undergraduate studies at University of Sydney in Australia and received his Ph.D. from Yale University in 1990. He was one of two Alumni Centennial Professors in the Department of Physics and Astronomy of the Johns Hopkins University. He was elected a Fellow of the American Physical Society in 2003 "for his discoveries in supergravity and in theories of extra dimensions, and for applications to testable models of fundamental physics". In 2010, Sundrum left Johns Hopkins and moved to the University of Maryland. His research is in theoretical particle physics and focuses on theoretical mechanisms and observa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Randall–Sundrum Model
In physics, Randall–Sundrum models (RS) (also called 5-dimensional warped geometry theory) are models that describe the world in terms of a warped-geometry higher-dimensional universe, or more concretely as a 5-dimensional anti-de Sitter space where the elementary particles (except the graviton) are localized on a (3 + 1)-dimensional brane or branes. The two models were proposed in two articles in 1999 by Lisa Randall and Raman Sundrum because they were dissatisfied with the universal extra-dimensional models then in vogue. Such models require two fine tunings; one for the value of the bulk cosmological constant and the other for the brane tensions. Later, while studying RS models in the context of the anti-de Sitter / conformal field theory (AdS/CFT) correspondence, they showed how it can be dual to technicolor models. The first of the two models, called RS1, has a finite size for the extra dimension with two branes, one at each end. The second, RS2, is similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
