Computer simulation
hideA computer simulation, a computer model or a computational model is a computer program, or network of computers, that attempts to simulate an abstract model of a particular system. Computer simulations have become a useful part of mathematical modeling of many natural systems in physics (computational physics), chemistry and biology, human systems in economics, psychology, and social science and in the process of engineering new technology, to gain insight into the operation of those systems, or to observe their behavior.
Computer simulations vary from computer programs that run a few minutes, to network-based groups of computers running for hours, to ongoing simulations that run for days. The scale of events being simulated by computer simulations has far exceeded anything possible (or perhaps even imaginable) using the traditional paper-and-pencil mathematical modeling: over 10 years ago, a desert-battle simulation, of one force invading another, involved the modeling of 66,239 tanks, trucks and other vehicles on simulated terrain around Kuwait, using multiple supercomputers in the DoD High Performance Computer Modernization Program; a 1-billion-atom model of material deformation (2002); a 2.64-million-atom model of the complex maker of protein in all organisms, a ribosome, in 2005; and the Blue Brain project at EPFL (Switzerland), began in May 2005, to create the first computer simulation of the entire human brain, right down to the molecular level.
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News tagged with computer simulations
Ultra-Powerful Laser Reproduces How Star's Jets Travel through Interstellar Space
Nov 20, 2009 |
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(PhysOrg.com) -- A multi-trillion-watt laser at the University of Rochester has simulated a stellar jet -- an outpouring of matter from a fledgling star -- with unprecedented realism.
Nothing But Net: The Physics of Free-Throw Shooting
Nov 04, 2009 |
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(PhysOrg.com) -- Pay attention, Shaq: Two North Carolina State University engineers have figured out the best way to shoot a free throw - a frequently underappreciated skill that gets more important as the ...
Laser-plasma accelerators ride on Einstein's shoulders
Nov 02, 2009 |
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Using Einstein's theory of special relativity to speedup computer simulations, scientists have designed laser-plasma accelerators with energies of 10 billion electron volts (GeV) and beyond. These systems, ...
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Roadrunner supercomputer simulates nanoscale material failure
Oct 29, 2009 |
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Very tiny wires, called nanowires, made from such metals as silver and gold, may play a crucial role as electrical or mechanical switches in the development of future-generation ultrasmall nanodevices.
A pain in the neck: Researcher studies the effects of too much texting on college students
Nov 10, 2009 |
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The world record for fastest text message typing is held by a 21-year old college student from Utah, but his dexterous digits could mean serious injury later on. Most adults aged 18-21 prefer texting over e-mail or phone ...
Glasgow scientists predict the unpredictable to guide future nano-chip design
5 hours ago |
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Scientists at the University of Glasgow, in collaboration with colleagues from Edinburgh, Manchester, Southampton and York universities, have developed technology which will help microchip designers create future integrated ...
'Cosmic fruit machine' matches collisions
Nov 24, 2009 |
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(PhysOrg.com) -- A new website will give everyone the chance to contribute to science by playing a 'cosmic fruit machine' and compare images of colliding galaxies with millions of simulated images of galactic ...
Computational microscope peers into the working ribosome (w/ Video)
Nov 23, 2009 |
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Two new studies reveal in unprecedented detail how the ribosome interacts with other molecules to assemble new proteins and guide them toward their destination in biological cells. The studies used molecular ...
FutureGrid to provide platform for experimental computation
Technology / Computer Sciences
Nov 17, 2009 |
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(PhysOrg.com) -- Over the next few months, a consortium that includes the University of Chicago will establish FutureGrid, a collaborative next-generation system for experimental scientific supercomputing.
Researchers use trident laser to accelerate protons to record energies
Nov 02, 2009 |
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An international team of physicists at Los Alamos National Laboratory has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can ...
Ionic Liquid's Makeup Measurably Non-Uniform at the Nanoscale
Nov 10, 2009 |
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(PhysOrg.com) -- Researchers at Texas Tech University, Queen's University in Belfast, Ireland, the University of Rome and the National Research Council in Italy recently made a discovery about the non-uniform chemical compositions ...
Oak Ridge 'Jaguar' supercomputer is World's fastest
Nov 16, 2009 |
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An upgrade to a Cray XT5 high-performance computing system deployed by the Department of Energy has made the "Jaguar" supercomputer the world's fastest. Located at Oak Ridge National Laboratory, Jaguar is ...
NASA Supercomputer Ranks Among World's Fastest
Space & Earth / Space Exploration
Nov 19, 2009 |
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(PhysOrg.com) -- NASA's premiere supercomputer located at Ames Research Center, Moffett Field, Calif., has garnered the sixth spot on the Top500 list of the world's most powerful computers.
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