Phys.org news tagged with:equation
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en-usPhys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.Molecular trick alters rules of attraction for non-magnetic metalsScientists have demonstrated for the first time how to generate magnetism in metals that aren't naturally magnetic, which could end our reliance on some rare and toxic elements currently used.
http://phys.org/news/2015-08-molecular-non-magnetic-metals.html
General Physics Wed, 05 Aug 2015 13:00:03 EDTnews357987653Scientists propose 3D graphene-like 'hyper-honeycomb' structures(Phys.org)—Scientists have proposed a new family of structures that are three-dimensional (3D) variations of graphene, the simplest example of which is called a "hyper-honeycomb." If the proposed structures can be experimentally realized, the new ways to arrange carbon atoms would add to the ever-growing number of new carbon allotropes. The scientists also predict that, among its interesting properties, the hyper-honeycomb could potentially be even more stable than diamond.
http://phys.org/news/2015-07-scientists-3d-graphene-like-hyper-honeycomb.html
Nanophysics Mon, 20 Jul 2015 09:40:02 EDTnews356575822Weyl points: Long-sought phenomenon finally detectedPart of a 1929 prediction by physicist Hermann Weyl—of a kind of massless particle that features a singular point in its energy spectrum called the "Weyl point,"—has finally been confirmed by direct observation for the first time, says an international team of physicists led by researchers at MIT. The finding could lead to new kinds of high-power single-mode lasers and other optical devices, the team says.
http://phys.org/news/2015-07-weyl-years.html
Condensed Matter Thu, 16 Jul 2015 14:00:07 EDTnews356263704Teen catches math error in golden ratio at Boston museumA 15-year-old high school student visiting Boston's Museum of Science has uncovered a math error in the golden ratio at a 34-year-old exhibit.
http://phys.org/news/2015-07-teen-math-error-golden-ratio.html
Other Tue, 07 Jul 2015 11:22:43 EDTnews355486958The math of shark skin"Sharks are almost perfectly evolved animals. We can learn a lot from studying them," says Emory mathematician Alessandro Veneziani.
http://phys.org/news/2015-07-math-shark-skin.html
Plants & Animals Fri, 03 Jul 2015 06:18:05 EDTnews355123074No need for sophisticated hunting techniques: Equatorial bats live the easy lifeMost of the world's bats use extremely sophisticated hunting techniques, but not bats around the equator. They use pretty much the same less sophisticated hunting techniques as their ancestors did millions of years ago. They probably do not need more than that, because life at the equator is easy.
http://phys.org/news/2015-06-sophisticated-techniques-equatorial-easy-life.html
Plants & Animals Tue, 23 Jun 2015 12:45:21 EDTnews354282309Still a filament arrow?On May 28, 2015 (above left), the sun, as seen by NASA's Solar Dynamics Observatory, showed a pair of filaments in the form of an arrow. The filaments appeared to remain stable as they rotated around to the far side of the sun. It takes approximately 25 days for the equator of the sun to complete a full revolution, though, because of its composition of plasma and gases, different areas of the sun rotate at different speeds. At its poles the sun rotates once every 36 days.
http://phys.org/news/2015-06-filament-arrow.html
Space Exploration Mon, 22 Jun 2015 07:00:01 EDTnews354174629Mathematicians formulate equations, bend light and figure out how to hide thingsThe idea of cloaking and rendering something invisible hit the small screen in 1966 when a Romulan Bird of Prey made an unseen, surprise attack on the Starship Enterprise on Star Trek. Not only did it make for a good storyline, it likely inspired budding scientists, offering a window of technology's potential.
http://phys.org/news/2015-06-mathematicians-equations-figure.html
Mathematics Mon, 22 Jun 2015 06:48:39 EDTnews354174504Stanford engineers team up with US Army to set computational recordStanford engineers have partnered with the U.S. Army Research Laboratory (ARL) to set a computational record. Stanford Professor Charbel Farhat and his research team at the Army High Performance Computing Research Center (AHPCRC) used a new, high-end, massively parallel computer to demonstrate the power of algorithms that instruct processors to work together to solve challenging problems.
http://phys.org/news/2015-06-stanford-team-army.html
Computer Sciences Thu, 11 Jun 2015 06:00:41 EDTnews353221230Ants' movements hide mathematical patternsWhen ants go exploring in search of food they end up choosing collective routes that fit statistical distributions of probability. This has been demonstrated by a team of mathematicians after analysing the trails of a species of Argentine ant. Studies like this could be applied to coordinate the movement of micro-robots in cleaning contaminated areas for example.
http://phys.org/news/2015-05-ants-movements-mathematical-patterns.html
Mathematics Tue, 12 May 2015 10:32:27 EDTnews350645539Image: Global cloud fraction map of EarthDecades of satellite observations and astronaut photographs show that clouds dominate space-based views of Earth. One study based on nearly a decade of satellite data estimated that about 67 percent of Earth's surface is typically covered by clouds. This is especially the case over the oceans, where other research shows less than 10 percent of the sky is completely clear of clouds at any one time. Over land, 30 percent of skies are completely cloud free.
http://phys.org/news/2015-05-image-globalcloud-fractionmap-earth.html
Earth Sciences Mon, 11 May 2015 07:50:02 EDTnews350547113Mathematics reveals how fluid flow affects bacteriaResearchers from the University of Liverpool have used mathematical equations to shed new light on how flowing fluid hinders the movement of bacteria in their search for food.
http://phys.org/news/2015-04-mathematics-reveals-fluid-affects-bacteria.html
Mathematics Tue, 28 Apr 2015 09:52:27 EDTnews349433541Snowball Earth: New study shows Antarctic climate even gripped the tropicsNew details of a nightmare period on Earth with surface conditions as frigid as present-day central Antarctica at the equator have been revealed thanks to the publication of a study of ancient glacier water.
http://phys.org/news/2015-04-snowball-earth-antarctic-climate-thetropics.html
Earth Sciences Tue, 14 Apr 2015 06:28:23 EDTnews348211694Equatorial fish babies in hot waterScientists have discovered that rising ocean temperatures slow the development of baby fish around the equator, raising concerns about the impact of global warming on fish and fisheries in the tropics.
http://phys.org/news/2015-03-equatorial-fish-babies-hot.html
Ecology Mon, 30 Mar 2015 09:22:54 EDTnews346926168Engineers develop new methods to speed up simulations in computational grand challengeEngineers at the University of California, San Diego, have developed a new family of methods to significantly increase the speed of time-resolved numerical simulations in computational grand challenge problems. Such problems often arise from the high-resolution approximation of the partial differential equations governing complex flows of fluids or plasmas. The breakthrough could be applied to simulations that include millions or billions of variables, including turbulence simulations.
http://phys.org/news/2015-03-methods-simulations-grand.html
General Physics Thu, 26 Mar 2015 14:50:02 EDTnews346599456American mathematicians Nash, Nirenberg win Abel math prizeAmerican mathematicians John F. Nash Jr. and Louis Nirenberg have won this year's Abel Prize in mathematics.
http://phys.org/news/2015-03-american-mathematicians-nash-nirenberg-abel.html
Mathematics Wed, 25 Mar 2015 08:39:14 EDTnews346491547When it comes to nuclear disaster, safety really is in numbersThe safety of nuclear plants, as well as the medical management of acute radiation syndrome, could soon be dramatically improved thanks to a new mathematical equation developed by Japan's Nuclear Safety Research Centre.
http://phys.org/news/2015-03-nuclear-disaster-safety.html
Energy & Green Tech Thu, 12 Mar 2015 07:30:15 EDTnews345364205Malware infecting hard disk firmware remained hidden for 15 years – but who's responsible?It sometimes seems that whenever security researchers discover some new exploit or malware that allows the monitoring of remote computers, the finger is quickly pointed at the US intelligence agencies.
http://phys.org/news/2015-02-malware-infecting-hard-disk-firmware.html
Security Fri, 20 Feb 2015 08:00:01 EDTnews343638033Best of Last Week: Big Bang singularity, unlocking Earth's inner core and another problem with antibiotics(Phys.org)—It was an intriguing week for physics as a pair of theorists suggested that their quantum equation predicts the universe has no beginning and thus there was no Big Bang. In their paper published in Physics Letters B, Saurya Das and Rajat Bhaduri, suggest their math shows that the universe has existed forever and that it may also account for both dark energy and dark matter. Also, some at this year's American Association for the Advancement of Science meeting have been hinting at the possible discovery in 2015 of a new particle in physics—due, they suggest, to the LHC coming back online, twice as powerful as before. Meanwhile, another group suggested that on quantum scales, there are many second laws of thermodynamics—they think there are whole families of them at extremely small scales.
http://phys.org/news/2015-02-week-big-singularity-earth-core.html
Other Mon, 16 Feb 2015 08:40:01 EDTnews343294668Study examines impact of domestic violence interventionIt is estimated that nearly 25 percent of women will experience severe violence at the hands of an intimate partner. The first step to seek help: call the police.
http://phys.org/news/2015-02-impact-domestic-violence-intervention.html
Social Sciences Wed, 11 Feb 2015 07:00:01 EDTnews342859172Optimized application of high intensity focused ultrasoundThe field of nonlinear acoustics is currently receiving a lot of attention, thanks to applications focused on the improvement of ultrasonic cleaning, ultrasonic welding, sonochemistry, or thermotherapy. Lithotripsy – the demolition of kidney stones based on the use of high intensity focused ultrasound – represents a further medical field of application.
http://phys.org/news/2015-02-optimized-application-high-intensity-focused.html
Mathematics Tue, 10 Feb 2015 09:30:06 EDTnews342782154Physics professor publishes exact solution to model Big Bang and quark gluon plasmaUnlike in mathematics, it is rare to have exact solutions to physics problems.
http://phys.org/news/2014-12-physics-professor-publishes-exact-solution.html
General Physics Tue, 16 Dec 2014 12:51:27 EDTnews337956678Taming the Boltzmann equationPhysicists at Ludwig Maximilian University of Munich, Germany, have developed a new algorithm that is capable of solving the Boltzmann equation for systems of self-propelled particles. The new method also reveals previously unknown patterns of collective motion in such systems.
http://phys.org/news/2014-11-boltzmann-equation.html
General Physics Thu, 20 Nov 2014 09:21:16 EDTnews335697663Best of Last Week: Questioning Higgs finding, possible alternative to antibiotics and reversing diabetes in mice(Phys.org) —It was an interesting week for physics—an international team of researchers openly questioned whether the particle discovered last year was truly the Higgs boson, since as they note, there is no conclusive evidence that it really was. Also, two physicists with USC suggested that maybe string field theory could be the foundation of quantum mechanics—providing a basis for all of physics and perhaps answering the question of where quantum mechanics actually comes from. And another team of physicists proposed the identification of a gravitational arrow of time—they've taken time out of mathematical equations used to describe the total energy of the universe allowing them to split equations that describe the evolution of the universe into two parts.
http://phys.org/news/2014-11-week-higgs-alternative-antibiotics-reversing.html
Other Mon, 10 Nov 2014 09:00:02 EDTnews334827863From smart grids to flying robots, engineer finds many applications for theoryThe future of electricity involves a "smart" grid, in which the energy distribution system is fully computerized, with sensors and wireless devices monitoring remote parts of the system and communicating with a central operations center. Automated technology can then adjust and control the components of the grid to improve its efficiency and manage the integration of renewable energy sources.
http://phys.org/news/2014-11-smart-grids-robots-applications-theory.html
Engineering Mon, 03 Nov 2014 07:08:10 EDTnews334220877Insightful mathematics for an optimal run: Mathematical equations can help improve athletic performanceSure, we can become better runners by hydrating well, eating right, cross training, and practice. But getting to an optimal running strategy with equations? That's exactly what a pair of mathematicians from France propose in a paper published this month in the SIAM Journal on Applied Mathematics.
http://phys.org/news/2014-10-insightful-mathematics-optimal-mathematical-equations.html
Mathematics Mon, 27 Oct 2014 10:01:43 EDTnews333622896Blink, point, solve an equation: Introducing PhotoMath"Ma, can I go now? My phone did my homework." PhotoMath, from the software development company MicroBlink, will make the student's phone do math homework. Just point the camera towards the mathematical expression, and PhotoMath displays a result. The PhotoMath app solves equations using the camera on an iOS or Windows phone and will be available for Android early next year. More important, PhotoMath is not just a camera-based calculator. Its value is not just in giving the phone user the answer but in being able to display the solution in steps taken to solve the problem. The user can understand the process that was used to solve the problem.
http://techxplore.com/news/2014-10-equation-photomath.html
Software Wed, 22 Oct 2014 15:21:28 EDTnews333210060We need to know about alien biology before we know how they thinkShould E.T. finally give Earth a ring, it's not only important to understand what the message says but why it is being sent, a speaker at a talk about extraterrestrials urged this week. This requires understanding about alien social behavior, also known as sociology.
http://phys.org/news/2014-10-alien-biology.html
Space Exploration Mon, 06 Oct 2014 09:00:01 EDTnews331801895Adding uncertainty to improve mathematical modelsMathematicians from Brown University have introduced a new element of uncertainty into an equation used to describe the behavior of fluid flows. While being as certain as possible is generally the stock and trade of mathematics, the researchers hope this new formulation might ultimately lead to mathematical models that better reflect the inherent uncertainties of the natural world.
http://phys.org/news/2014-09-adding-uncertainty-mathematical.html
Mathematics Mon, 29 Sep 2014 16:36:51 EDTnews331227369A fun way of understanding Einstein's General Theory of RelativityMany people fail to realize just how much energy there is locked up in matter. The nucleus of any atom is an oven of intense radiation, and when you open the oven door, that energy spills out; oftentimes violently. However, there is something even more intrinsic to this aspect of matter that escaped scientists for years.
http://phys.org/news/2014-09-fun-einstein-theory-relativity.html
General Physics Thu, 25 Sep 2014 10:00:01 EDTnews330853695