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Arthur Komar
Arthur B. Komar (March 26, 1931 – June 3, 2011) was a theoretical physicist, specializing in general relativity and the search for quantum gravity. Arthur Komar made a significant contribution to physics as an educator, research scientist, and administrator. He had wide interests in numerous other subjects. Education Arthur attended Midwood High School in Brooklyn. He was a capable student and chose to specialize in physics. Research Princeton Arthur's interests in physics ranged over numerous fundamental and applied concepts, including conserved quantities, space and time, and thermodynamics, notably he pursued the problem of observables in general relativity and in quantum theory. As a graduate student, he worked on the problem of invariants in general relativistic spacetimes. In 1956, he gained his Ph.D. in physics at Princeton University with a thesis on the classical electron – a topic suggested by Fritz Rohrlich. His PhD dissertation was supervised by John Archibald ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syracuse University
Syracuse University (informally 'Cuse or SU) is a Private university, private research university in Syracuse, New York. Established in 1870 with roots in the Methodist Episcopal Church, the university has been nonsectarian since 1920. Located in the city's University Hill, Syracuse, University Hill neighborhood, east and southeast of Downtown Syracuse, the large campus features an eclectic mix of architecture, ranging from nineteenth-century Romanesque Revival architecture, Romanesque Revival to contemporary buildings. Syracuse University is organized into 13 schools and colleges, with nationally recognized programs in Syracuse University School of Architecture, architecture, Maxwell School of Citizenship and Public Affairs, public administration, S.I. Newhouse School of Public Communications, journalism and communications, Martin J. Whitman School of Management, business administration, Syracuse University School of Information Studies, information studies, Syracuse Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piano
The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboard, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings. It was invented in Italy by Bartolomeo Cristofori around the year 1700. Description The word "piano" is a shortened form of ''pianoforte'', the Italian term for the early 1700s versions of the instrument, which in turn derives from ''clavicembalo col piano e forte'' (key cimbalom with quiet and loud)Pollens (1995, 238) and ''fortepiano''. The Italian musical terms ''piano'' and ''forte'' indicate "soft" and "loud" respectively, in this context referring to the variations in volume (i.e., loudness) produced in response to a pianist's touch or pressure on the keys: the grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Whig–Cliosophic Society
The American Whig–Cliosophic Society (Whig-Clio) is a political, literary, and debating society at Princeton University and the oldest debate union in the United States. Its precursors, the American Whig Society and the Cliosophic Society, were founded at Princeton in 1769 and 1765 by James Madison, William Paterson, Oliver Ellsworth, and Aaron Burr. Originally two separate organizations, the American Whig Society and the Cliosophic Society were the primary student organizations at Princeton until the end of the 19th century. They "functioned in many ways as separate colleges within the College of New Jersey," creating their own schedule of classes and offering diplomas to graduates." Clio's members were usually northerners, while Whig's typically came from the southern states. In the decades before the Civil War, the societies frequently debated the subject of slavery. Despite their regional differences, both societies voted regularly in support of slavery's continuation and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nassau Literary Magazine
Nassau may refer to: Places Bahamas *Nassau, Bahamas, capital city of the Bahamas, on the island of New Providence Canada *Nassau District, renamed Home District, regional division in Upper Canada from 1788 to 1792 * Nassau Street (Winnipeg), Manitoba *Nassau Street, Toronto Cook Islands *Nassau (Cook Islands), one of the Northern Cook Islands Germany * Nassau, Rhineland-Palatinate, a town founded in AD 915 * Nassau (region), the broader geographical and historical region comprising the former independent country Nassau * Nassau (Verbandsgemeinde), an administrative district including the town of Nassau and its surrounding areas * County of Nassau, a German state within the Holy Roman Empire during the Middle Ages, or one of its many successor counties * Duchy of Nassau, an independent German state between 1806 and 1866 and the ultimate successor of the medieval county * Hesse-Nassau, a Prussian province formed following their annexation of the Duchy of Nassau (along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hibben Scholarship (1888–1964), American food writer
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Hibben is a surname. Notable people with the surname include: * Frank C. Hibben (1910–2002), American archaeologist *Gil Hibben (born 1935), American knife maker *Helene Hibben (1882–1969), American artist *John Grier Hibben (1861–1933), American Presbyterian minister, philosopher and educator *Paxton Hibben (1880–1928), American diplomat, journalist, writer and humanitarian *Samuel Hibben (1888–1972), American lighting designer *Sheila Hibben Celia Craik Hibben (1888–1964), better known as Sheila Hibben, was an American food journalist. She served as ''The New Yorker'' first food critic, working for the magazine for 20 years. She also authored several cookbooks. Biography She was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissertations Abstracts International
''ProQuest Dissertations and Theses'' (''PQDT'') is an online database that indexes, abstracts, and provides full-text access to dissertations and theses. The database includes over 2.4 million records and covers 1637 to the present. It is produced by ProQuest and was formerly known as ''ProQuest Digital Dissertations''. The bibliographic database (without full-text dissertations) is known as Dissertation Abstracts or Dissertation Abstracts International. PQDT annually publishes more than 90% of all dissertations submitted from accredited institutions of higher learning in North America as well as from colleges and universities in Europe and Asia. Over the past 60 years, PQDT has amassed more than 1.4 million titles beginning with the first U.S. dissertation accepted by a university (Yale) in 1861. ProQuest began digitizing dissertations in 1997 from a microform archive. In October 2015, ProQuest added the ability for authors to include an ORCID identifier when submitting a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Archibald Wheeler
John Archibald Wheeler (July 9, 1911April 13, 2008) was an American theoretical physicist. He was largely responsible for reviving interest in general relativity in the United States after World War II. Wheeler also worked with Niels Bohr in explaining the basic principles behind nuclear fission. Together with Gregory Breit, Wheeler developed the concept of the Breit–Wheeler process. He is best known for popularizing the term "black hole," as to objects with gravitational collapse already predicted during the early 20th century, for inventing the terms "quantum foam", "neutron moderator", "wormhole" and "it from bit", and for hypothesizing the "one-electron universe". Stephen Hawking referred to him as the "hero of the black hole story". Wheeler earned his doctorate at Johns Hopkins University under the supervision of Karl Herzfeld, and studied under Breit and Bohr on a National Research Council fellowship. During 1939 he collaborated with Bohr to write a series of papers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Rohrlich
Fritz Rohrlich (May 12, 1921 – November 14, 2018) was an American theoretical physicist and educator who published in the fields of quantum electrodynamics, classical electrodynamics of charged particles, and the philosophy of science. Life and work Rohrlich was born in Vienna, Austria in 1921. He was the son of Illy (née Schwarz) and Egon Rohrlich, a lawyer. His family was Jewish. His education was terminated after Austria was annexed by Germany in March, 1938 (the "Anschluss"). For a time he did forced labor. In 1939 he emigrated to study at the Technion in Haifa in modern-day Israel, where he was awarded a Diplom in industrial chemistry in 1943. He then began work in Jerusalem as a technician for the British armed forces. He was able to concurrently study physics with Giulio Racah at the Hebrew University of Jerusalem, which was his ultimate goal. In June 1942, his parents became victims of The Holocaust; they had been deported to the Sobibór Extermination Camp by the aut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron
The electron ( or ) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron's mass is approximately 1/1836 that of the proton. Quantum mechanical properties of the electron include an intrinsic angular momentum ( spin) of a half-integer value, expressed in units of the reduced Planck constant, . Being fermions, no two electrons can occupy the same quantum state, in accordance with the Pauli exclusion principle. Like all elementary particles, electrons exhibit properties of both particles and waves: They can collide with other particles and can be diffracted like light. The wave properties of electrons are easier to observe with experiments than those of other particles like neutrons and protons because electrons have a lower mass and hence a longer de Broglie wavele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invariant (physics)
In theoretical physics, an invariant is an observable of a physical system which remains unchanged under some transformation. Invariance, as a broader term, also applies to the no change of form of physical laws under a transformation, and is closer in scope to the mathematical definition. Invariants of a system are deeply tied to the symmetries imposed by its environment. Invariance is an important concept in modern theoretical physics, and many theories are expressed in terms of their symmetries and invariants. Examples In classical and quantum mechanics, invariance of space under translation results in momentum being an invariant and the conservation of momentum, whereas invariance of the origin of time, i.e. translation in time, results in energy being an invariant and the conservation of energy. In general, by Noether's theorem, any invariance of a physical system under a continuous symmetry leads to a fundamental conservation law. In crystals, the electron density is peri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Observable
In physics, an observable is a physical quantity that can be measured. Examples include position and momentum. In systems governed by classical mechanics, it is a real-valued "function" on the set of all possible system states. In quantum physics, it is an operator, or gauge, where the property of the quantum state can be determined by some sequence of operations. For example, these operations might involve submitting the system to various electromagnetic fields and eventually reading a value. Physically meaningful observables must also satisfy transformation laws that relate observations performed by different observers in different frames of reference. These transformation laws are automorphisms of the state space, that is bijective transformations that preserve certain mathematical properties of the space in question. Quantum mechanics In quantum physics, observables manifest as linear operators on a Hilbert space representing the state space of quantum states. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermodynamics
Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of thermodynamics which convey a quantitative description using measurable macroscopic physical quantities, but may be explained in terms of microscopic constituents by statistical mechanics. Thermodynamics applies to a wide variety of topics in science and engineering, especially physical chemistry, biochemistry, chemical engineering and mechanical engineering, but also in other complex fields such as meteorology. Historically, thermodynamics developed out of a desire to increase the efficiency of early steam engines, particularly through the work of French physicist Sadi Carnot (1824) who believed that engine efficiency was the key that could help France win the Napoleonic Wars. Scots-Irish physicist Lord Kelvin was the first to formulate a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
