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David M. Strom
David M. Strom (born about 1959) is an experimental high energy particle physicist on the faculty of the University of Oregon. Early life and education Strom was born in Montana in 1957, the son of Kathryn Jean (née Mattill) and Herbert Edward Strom. He was awarded a B.A. in Physics and Mathematics in 1980 at St. Olaf College. He earned a Ph.D. in Physics in 1986 at the University of Wisconsin–Madison, with his dissertation, ''Measurement of the D0 lifetime,'' advised by Sau Lan Wu. Strom is married to Katja Heide, and they have two sons. Career After earning his Ph.D., Strom was a research associate at Madison for a year. He was a McCormick Fellow at the University of Chicago for two years, and he became a research associate there from 1989–1991. Strom joined the physics faculty at the University of Oregon in 1991. He researches topics in experimental high energy physics, including " Quantum black hole production in proton-proton collisions, Higgs (in beyond the St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Strom
David M. Strom (born 1964) is a Conservative in Minnesota. Personal Strom graduated from Carleton College (1987) in Northfield, Minnesota, with a degree in political science and he holds a master's degree in political science from Duke University (1992). He has taught political philosophy at Duke University, North Carolina State University, Carleton College, and the University of St. Thomas. Public Strom hosted a weekly radio show on WWTC's "AM 1280 The Patriot" called "The David Strom Show" which was part of a live, local Saturday lineup including The Northern Alliance Radio Network. He was a nearly regular, bi-weekly, contributor to the local ABC affiliate's Sunday morning news program ''At Issue'' 3-5 minute "face-off" segment in which he sparred with an opponent of an opposing political view. David served as President of the Taxpayers League of Minnesota. He was a Senior Policy Fellow and past president of the Minnesota Free Market Institute and he served as Exec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eiffel Tower
The Eiffel Tower ( ; french: links=yes, tour Eiffel ) is a wrought-iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower. Locally nicknamed "''La dame de fer''" (French for "Iron Lady"), it was constructed from 1887 to 1889 as the centerpiece of the 1889 World's Fair. Although initially criticised by some of France's leading artists and intellectuals for its design, it has since become a global cultural icon of France and one of the most recognisable structures in the world. The Eiffel Tower is the most visited monument with an entrance fee in the world: 6.91 million people ascended it in 2015. It was designated a '' monument historique'' in 1964, and was named part of a UNESCO World Heritage Site ("Paris, Banks of the Seine") in 1991. The tower is tall, about the same height as an 81- building, and the tallest structure in Paris. Its base is square, measuring on each sid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century American Physicists
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius (AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman emperor, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1957 Births
1957 ( MCMLVII) was a common year starting on Tuesday of the Gregorian calendar, the 1957th year of the Common Era (CE) and ''Anno Domini'' (AD) designations, the 957th year of the 2nd millennium, the 57th year of the 20th century, and the 8th year of the 1950s decade. Events January * January 1 – The Saarland joins West Germany. * January 3 – Hamilton Watch Company introduces the first electric watch. * January 5 – South African player Russell Endean becomes the first batsman to be dismissed for having ''handled the ball'', in Test cricket. * January 9 – British Prime Minister Anthony Eden resigns. * January 10 – Harold Macmillan becomes Prime Minister of the United Kingdom. * January 11 – The African Convention is founded in Dakar. * January 14 – Kripalu Maharaj is named fifth Jagadguru (world teacher), after giving seven days of speeches before 500 Hindu scholars. * January 15 – The film ''Throne of Blood'', Akira Kurosawa's reworking of '' Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of American Physical Society Fellows (2011–)
The American Physical Society honors members with the designation ''Fellow'' for having made significant accomplishments to the field of physics. The following list includes those fellows selected since 2011. 2011 * Nikolaus Adams * Claudia Draxl * Jean-Philippe Ansermet * William J. Atkinson * Harut Avagyan * Alexander Balandin * Edward A. Baron * Stephen Barr * Manfred Bayer * John Beamish * Alice Bean * Brian Bennett * Michael Birse * Steven Block * Michael Bonitz * John H. Booske * Timothy Boykin * Carl Brans * Arne Brataas * Alain Brizard * April Brown * Michael Brown * Harald Brune * Henrik Bruus * Alessandra Buonanno * Cathryn Carson * Andrea Cavalleri * Deepto Chakrabarty * Tapash Chakraborty * Robert Charity * Michael Chertkov * Ashot Chilingarian * Min S. Chong * Hans Christen * Jason Cleveland * Daniel Cox * Nicholas Curro * Curt Cutler * Kari Dalnoki-Veress * Peter Delfyett * Regina Demina * Mark Devlin * Judith Driscoll * Brett Dun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OPAL Experiment
OPAL was one of the major experiments at CERN's Large Electron–Positron Collider. OPAL studied particles and their interactions by collecting and analysing electron-positron collisions. LEP was the largest particle accelerator in the world. There were three other experiments at LEP: ALEPH, DELPHI and L3. The Detector The OPAL detector was about 12 m long, 12 m high and 12 m wide. The detector components were arranged around the beam pipe, in a layered structure like that of an onion. The tracking system of OPAL consisted of a silicon microvertex detector, a vertex detector, a jet chamber, and z-chambers (from the beam pipe out). The silicon microvertex detector and the vertex chamber were used to locate decay vertices of short-lived particles, and to improve the momentum resolution. The central jet chamber identified particles from how much ionization they caused, and how far they curved in the magnetic field. These chambers worked well to identify tracks in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BaBar Experiment
The BaBar experiment, or simply BaBar, is an international collaboration of more than 500 physicists and engineers studying the subatomic world at energies of approximately ten times the rest mass of a proton (~10 GeV). Its design was motivated by the investigation of charge-parity violation. BaBar is located at the SLAC National Accelerator Laboratory, which is operated by Stanford University for the Department of Energy in California. Physics BaBar was set up to understand the disparity between the matter and antimatter content of the universe by measuring Charge Parity violation. CP symmetry is a combination of Charge-conjugation symmetry (C symmetry) and Parity symmetry (P symmetry), each of which are conserved separately except in weak interactions. BaBar focuses on the study of CP violation in the B meson system. The name of the experiment is derived from the nomenclature for the B meson (symbol ) and its antiparticle (symbol , pronounced B bar). The experiment's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compact Muon Solenoid
The Compact Muon Solenoid (CMS) experiment is one of two large general-purpose particle physics detectors built on the Large Hadron Collider (LHC) at CERN in Switzerland and France. The goal of the CMS experiment is to investigate a wide range of physics, including the search for the Higgs boson, extra dimensions, and particles that could make up dark matter. CMS is 21 metres long, 15 m in diameter, and weighs about 14,000 tonnes. Over 4,000 people, representing 206 scientific institutes and 47 countries, form the CMS collaboration who built and now operate the detector. It is located in a cavern at Cessy in France, just across the border from Geneva. In July 2012, along with ATLAS, CMS tentatively discovered the Higgs boson. By March 2013 its existence was confirmed. Background Recent collider experiments such as the now-dismantled Large Electron-Positron Collider and the newly renovated Large Hadron Collider (LHC) at CERN, as well as the () recently closed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Higgs Boson
The Higgs boson, sometimes called the Higgs particle, is an elementary particle in the Standard Model of particle physics produced by the quantum excitation of the Higgs field, one of the fields in particle physics theory. In the Standard Model, the Higgs particle is a massive scalar boson with zero spin, even (positive) parity, no electric charge, and no colour charge, that couples to (interacts with) mass. It is also very unstable, decaying into other particles almost immediately. The Higgs field is a scalar field, with two neutral and two electrically charged components that form a complex doublet of the weak isospin SU(2) symmetry. Its " Mexican hat-shaped" potential leads it to take a nonzero value ''everywhere'' (including otherwise empty space), which breaks the weak isospin symmetry of the electroweak interaction, and via the Higgs mechanism gives mass to many particles. Both the field and the boson are named after physicist Peter Higgs, who in 1964, along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protons
A proton is a stable subatomic particle, symbol , H+, or 1H+ with a positive electric charge of +1 ''e'' elementary charge. Its mass is slightly less than that of a neutron and 1,836 times the mass of an electron (the proton–electron mass ratio). Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons" (particles present in atomic nuclei). One or more protons are present in the nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each element has a unique number of protons, each element has its own unique atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element. The word ''proton'' is Greek for "first", and this name was given to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dark Matter
Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Dark matter is called "dark" because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect, or emit electromagnetic radiation and is, therefore, difficult to detect. Various astrophysical observationsincluding gravitational effects which cannot be explained by currently accepted theories of gravity unless more matter is present than can be seenimply dark matter's presence. For this reason, most experts think that dark matter is abundant in the universe and has had a strong influence on its structure and evolution. The primary evidence for dark matter comes from calculations showing that many galaxies would behave quite differently if they did not contain a large amount of unseen matter. Some galaxies would not have formed at all and others would not move as they currently do. Other lines of evidence include observa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Holes
A black hole is a region of spacetime where gravity is so strong that nothing, including light or other electromagnetic waves, has enough energy to escape it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of no escape is called the event horizon. Although it has a great effect on the fate and circumstances of an object crossing it, it has no locally detectable features according to general relativity. In many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is of the order of billionths of a kelvin for stellar black holes, making it essentially impossible to observe directly. Objects whose gravitational fields are too strong for light to escape were first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
