News tagged with principle
Drug companies moving toward green goals
Many pharmaceutical companies in a new survey are making progress in embracing the guiding principles of green chemistry, which seek to minimize the use of potentially hazardous substances in producing medications, reduce ...
May 31, 2012 |
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A long-held assumption confirmed: We can learn a lot from other species' genes
Researchers at the SIB Swiss Institute of Bioinformatics and the EMBL-European Bioinformatics Institute have confirmed the long-held belief that studying the genes we share with other animals is useful. The study, published ...
May 17, 2012 |
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Revealed: The fish that nearly sank Isaac Newton
A 300-year-old drawing of a flying fish that nearly scuttled Isaac Newton's world-changing opus on modern physics will be showcased in the Royal Society's online picture library, launched Thursday.
Apr 19, 2012 |
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Neutrons uncover new density waves in fermion liquids
Scientists working at the Institut Laue-Langevin, one of the world's leading centres for neutron science, have carried out the first investigation of two-dimensional fermion liquids using neutron scattering, and discovered ...
Mar 28, 2012 |
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Researchers prove Landauer was right in saying heat is dissipated when memory is erased
(PhysOrg.com) -- For over half a century, physicists and computer scientists have been troubled by a theoretical concept set forth by Rolf Landauer. He suggested that the very act of erasing a bit of memory ...
Mar 08, 2012 |
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Libraries protest Random House price hike
(AP) -- The American Library Association is urging Random House Inc. to reconsider its steep increases in the price of e-books for library wholesalers
Mar 03, 2012 |
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Scientists score one more victory over uncertainty in quantum physics measurements
(PhysOrg.com) -- Most people attempt to reduce the little uncertainties of life by carrying umbrellas on cloudy days, purchasing automobile insurance or hiring inspectors to evaluate homes they might consider ...
Feb 26, 2012 |
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Computer simulations show how key properties of nanowires change as the diameter increases
Silicon nanowires are widely recognized as candidates for use in next-generation sensors, battery electrodes and solar cells, and first-principle calculations are an important tool in the development of these ...
Feb 17, 2012 |
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Are you certain, Mr. Heisenberg? New measurements deepen understanding of quantum uncertainty
Heisenberg's Uncertainty principle is arguably one of the most famous foundations of quantum physics. It says that not all properties of a quantum particle can be measured with unlimited accuracy. Until now, this has often ...
Jan 17, 2012 |
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Good wingmen fib for a friend
It could be called the wingman theory or the Barney Stinson principle (after the character played by Neil Patrick Harris on hit TV show How I Met Your Mother). A University of Alberta researcher says that – like Barney ...
Other Sciences / Social Sciences
Jan 17, 2012 |
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Rethinking the fall of Rome's republic
When Julius Caesar crossed the Rubicon -- a river in northern Italy -- in 49 B.C., leading what was effectively his own personal army, he triggered a set of changes that resonated through the ancient world ...
Other Sciences / Archaeology & Fossils
Nov 09, 2011 |
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Major breakthrough improves software reliability and security
Anyone who uses multithreaded computer programs -- and that's all of us, as these are the programs that power nearly all software applications including Office, Windows, MacOS, and Google Chrome Browser, and web services ...
Technology / Computer Sciences
Nov 02, 2011 |
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Glowing beacons reveal hidden order in dynamical systems
A dynamical system in which repeated measurements on a single particle yield the same mean result as a single measurement of the whole ensemble is said to be ergodic. The ergodic theorem expresses a fundamental physical principle, ...
Oct 19, 2011 |
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The Nanotechnology of Sundew and English Ivy
Fifteen small sundew plants perch on a window sill, collecting sunlight and eating meat in the lab of Mingjun Zhang on the University of Tennessee's Knoxville campus. Sundew plants are carnivores, consuming ...
Nanotechnology / Bio & Medicine
Oct 18, 2011 |
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Russia believes US, Israel behind Iran worm attack: official
Russia believes Israel and the United States were responsible for unleashing the malicious Stuxnet computer worm on Iran's nuclear programme last year, a top official said Friday.
Sep 23, 2011 |
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