News tagged with simulation
A 40-year-old puzzle of superstring theory solved by supercomputer
A group of three researchers from KEK, Shizuoka University and Osaka University has for the first time revealed the way our universe was born with 3 spatial dimensions from 10-dimensional superstring theory in which spacetime ...
Dec 23, 2011 |
4.6 / 5 (83) |
72
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Nuclear fusion simulation shows high-gain energy output
(PhysOrg.com) -- High-gain nuclear fusion could be achieved in a preheated cylindrical container immersed in strong magnetic fields, according to a series of computer simulations performed at Sandia National ...
Mar 20, 2012 |
4.8 / 5 (43) |
120
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Superhard carbon material could crack diamond
(PhysOrg.com) -- By applying extreme pressure to compress and flatten carbon nanotubes, scientists have discovered that they can create a new carbon polymer that simulations show is hard enough to crack diamond. ...
Nanotechnology / Nanomaterials
Dec 07, 2011 |
4.7 / 5 (27) |
8
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RNA reactor could have served as a precursor of life
(PhysOrg.com) -- Nobody knows quite how life originated on Earth, but most scientists agree that living cells did not abruptly appear from nonliving cells in a single step. Instead, there were probably a series ...
Jul 11, 2011 |
4.7 / 5 (27) |
103
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Cosmic crashes forging gold: Nuclear reactions in space do produce the heaviest elements
(PhysOrg.com) -- Collisions of neutron stars produce the heaviest elements such as gold or lead. The cosmic site where the heaviest chemical elements such as lead or gold are formed has most likely been identified: ...
Sep 09, 2011 |
4.8 / 5 (25) |
46
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Rising oceans - too late to turn the tide?
Melting ice sheets contributed much more to rising sea levels than thermal expansion of warming ocean waters during the Last Interglacial Period, a UA-led team of researchers has found. The results further ...
Space & Earth / Earth Sciences
Jul 15, 2011 |
4.8 / 5 (20) |
45
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New simulation predicts higher average Earth temperatures by 2050 than other models
(PhysOrg.com) -- Over the past several years, researchers have built a variety of computer simulations created to predict Earth’s climate in the future. Most recently, most models have suggested that ...
Space & Earth / Earth Sciences
Mar 26, 2012 |
3.1 / 5 (30) |
170
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Giant planet ejected from the solar system
(PhysOrg.com) -- Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in ...
Nov 10, 2011 |
4.2 / 5 (21) |
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Computer simulation shows Solar System once had an extra planet
(PhysOrg.com) -- A new study published on arXiv.org shows that, based on computer simulations, Jupiter, Saturn, Uranus and Neptune may not have been the only gas giants in our solar system. According to David ...
Sep 22, 2011 |
4.2 / 5 (20) |
13
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Water waves exhibit negative gravity near a periodic array of buoys
(PhysOrg.com) -- Ocean waves can be incredibly strong and very difficult to block completely. When a wave moving across the ocean interacts with a buoy, the wave can be slightly dampened, but will still pass ...
May 09, 2011 |
3.8 / 5 (21) |
17
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Digital quantum simulator realized
(PhysOrg.com) -- The physicists of the University of Innsbruck and the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck have come considerably closer to their goal to investigate complex ...
Sep 01, 2011 |
5 / 5 (16) |
4
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U.Va.'s Pfister accomplishes breakthrough toward quantum computing
A sort of Holy Grail for physicists and information scientists is the quantum computer. Such a computer, operating on the highly complex principles of quantum mechanics, would be capable of performing specific calculations ...
Jul 15, 2011 |
4.4 / 5 (18) |
12
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Scientists release most accurate simulation of the universe to date
(PhysOrg.com) -- The Bolshoi supercomputer simulation, the most accurate and detailed large cosmological simulation run to date, gives physicists and astronomers a powerful new tool for understanding such ...
Sep 29, 2011 |
4.9 / 5 (16) |
11
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First-ever model simulation of the structuring of the observable universe
A team of researchers from the Laboratoire Univers et Theorie (France) coordinated by Jean-Michel Alimi has performed the first-ever computer model simulation of the structuring of the entire observable universe, ...
Apr 12, 2012 |
4.6 / 5 (17) |
44
Weird world of water gets a little weirder with a new anomaly
Strange, stranger, strangest! To the weird nature of one of the simplest chemical compounds -- the stuff so familiar that even non-scientists know its chemical formula -- add another odd twist. Scientists ...
Nov 09, 2011 |
4.8 / 5 (16) |
8
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Simulation
Simulation is the imitation of some real thing, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system.
Simulation is used in many contexts, including the modeling of natural systems or human systems in order to gain insight into their functioning. Other contexts include simulation of technology for performance optimization, safety engineering, testing, training and education. Simulation can be used to show the eventual real effects of alternative conditions and courses of action.
Key issues in simulation include acquisition of valid source information about the relevent selection of key characteristics and behaviours, the use of simplifying approximations and assumptions within the simulation, and fidelity and validity of the simulation outcomes.
For more information about Simulation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
