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  • Exploring gambles reveals foundational difficulty behind economic theory (and a solution)
    of the existing humans on Earth And while there is really no way to prove that such was Fifty years of quarks January 20 2014 In 1964 two physicists independently proposed the existence of the subatomic particles known as quarks When parallel worlds collide quantum mechanics is born October 24 2014 Parallel universes worlds where the dinosaur killing asteroid never hit or where Australia was colonised by the Portuguese are a staple of science fiction But are they real Many Interacting Worlds theory Scientists propose existence and interaction of parallel worlds October 30 2014 Griffith University academics are challenging the foundations of quantum science with a radical new theory based on the existence of and interactions between parallel universes After a half century the exotic pentaquark particle is found August 24 2015 In July scientists at the Large Hadron Collider LHC reported the discovery of the pentaquark a long sought particle first predicted to exist in the 1960s as a consequence of the theory of elementary particles and their Behavioral economics applied to new pension contracts November 10 2015 The optimal new pension contract can and must take into account people s need for certainty and the possibility to spread the risk of financial setbacks out over time Servaas van Bilsen argues this in his PhD thesis Essays Recommended for you Physicists create first photonic Maxwell s demon February 12 2016 Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise February 12 2016 Members of the International Daya Bay Collaboration who track the production and flavor shifting behavior of electron antineutrinos generated at a nuclear power complex in China have obtained the most precise measurement Einstein s waves a 100 year odyssey February 12 2016 When Albert Einstein forged the bedrock theory of modern physics 100 years ago he had no computer no internet no printer ballpoint pens and pocket calculators did not exist and few homes had telephones Engineers develop new flat ultralight lens that could change how cameras are designed February 12 2016 Imagine digital cameras or smartphones without the bulky lenses or eyeglasses with lenses that are paper thin New imaging system uses an open ended bundle of optical fibers no lenses protective housing needed February 12 2016 Researchers at the MIT Media Lab have developed a new imaging device that consists of a loose bundle of optical fibers with no need for lenses or a protective housing Announcement Thursday on Einstein s gravitational waves February 8 2016 Scientists are set to make a major announcement Thursday on efforts to pinpoint the existence of gravitational waves or ripples of space and time that transport energy across the universe 16 comments 2 5 Adjust slider to filter visible comments by rank Display comments newest first LifeBasedLogic 2 5 6 Feb 02 2016 Is there some hidden assumption possibly hundreds of years old behind not one but many of the current scientific problems in economic theory The second perspective what happens in our world across time is the one we explore and that hasn t been fully appreciated in economics so far Exactly Life is most important in life Any thing claiming to be a legitimate theory of anything must concede that point or it is not a legitimate second perspective it can t be true Thank you Murray Gell Mann Gigel 3 9 5 7 Feb 03 2016 Life is most important in life It s hard to see what you are telling Stop using circular statements Mike Massen 3 5 4 Feb 03 2016 LifeBasedLogic says Life is most important in life What does that mean Surely if when looking at key details ALL life observed here on Earth is indisputably based on amino acid structures the relationships are purely chemical energy interchange under brutal every present process of Natural Selection All life amines which arise from Ammonia Water CO2 reflect early Earth s atmosphere where chemical reactions for production of all life s components are everywhere AND subject to energy differentials all the time by non random processes re chemical bonding creating meta stable structures very easily too ie Formamide arose easily on early Earth with heat lightning after only a few hours it leads always to Guanine one of our DNA bases with other bases similarly generated Eg lightning metal salt catalysis Nature proves its pattern as Brutal extension of Eat bet Eaten all the time Can LifeBasedLogic articulate his position well julianpenrod 1 8 5 4 Feb 03 2016 A fundamental problem with economics is the claim that finances throughout the world behave like a system behaving with laws in response to random events not arbitrarily driven Workers are paid by bosses bosses get the money from the presidents presidents answer to board members companies depend on money from banks and stock holders banks depend in rules in government and their owners A constant hierarchy in power But in any finite population there is a highest level Those are the New World Order They share in a single pot of money all the material wealth that isn t bolted down They no longer worry about which money is whose they all share in it And they manipulate events and how money flows to the less rich Uncle Ira 3 5 6 Feb 03 2016 Exactly Life is most important in life Any thing claiming to be a legitimate theory of anything must concede that point or it is not a legitimate second perspective it can t be true David Skippy Aren t you suspended from school for disrupting the classes Knock it off couyon and stay off the school yard until you have served out your time And you get demoted two grades when you get back for being so stupid by wearing your silly

    Original URL path: http://phys.org/news/2016-02-exploring-gambles-reveals-foundational-difficulty.html (2016-02-13)
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  • Fast-moving invisibility cloaks become visible
    be cloaked at any given relativistic velocity The results will help scientists better understand the abilities and limitations of invisibility cloaks We are interested in such research for two reasons Halimeh said First it allows us to further investigate whether or not these invisibility cloaks are electromagnetically equivalent to vacuum Second it allows us to better understand the limitations of these cloaks when it comes to a relativistic world where we have fast moving objects that we need to cloak or cloak ourselves from or in case we are in a strong gravitational field for example and we wish to have a cloak that works there as well As coauthor Dr Robert Thompson at the University of Otago in New Zealand added the results go beyond cloaking Scientists around the world are using cloaking as a testbed for the design and construction of new light controlling technologies that could have a big impact on everything from communications to medical devices and fully understanding the kinds of effects we re studying is crucial for making the most of these new technologies Thompson said Explore further New invisibility cloak hides objects from human view More information Jad C Halimeh et al Invisibility cloaks in relativistic motion Physical Review A DOI 10 1103 PhysRevA 93 013850 Also at arXiv 1510 06144 physics optics Journal reference Physical Review A 2011 shares feedback to editors 2016 Phys org Tweet Favorites Email Print PDF Featured Last comments Popular Detection of gravitational waves would open new window on universe Feb 10 2016 58 Gravitational waves detected 100 years after Einstein s prediction Feb 11 2016 144 Scientists discover hidden galaxies behind the Milky Way Feb 09 2016 3 GPS tracking down to the centimeter Feb 11 2016 10 A metal that behaves like water Feb 11 2016 2 more Phys org on facebook Relevant PhysicsForums posts Zeno s arrow paradox 39 minutes ago Arrows vs plate armor 49 minutes ago Wave impedance of free space 51 minutes ago Work done on a stationary bycicle 53 minutes ago Brainstorming Large scale piezoelectricity generation 2 hours ago free fall acceleration help 2 hours ago More from General Physics Related Stories New invisibility cloak hides objects from human view July 27 2011 For the first time scientists have devised an invisibility cloak material that hides objects from detection using light that is visible to humans The new device is a leap forward in cloaking materials according to a report One size cloaks all November 21 2012 A metamaterial invisibility cloak that can adapt to hide different sized objects is demonstrated by in Nature Communications this week The findings represent a useful advance for more practical applications of metamaterial Invisibility cloak hides parts of objects leaves other parts visible December 2 2013 Phys org When Harry Potter walks around with a visible head but an invisible body the performance seems strongly rooted in fantasy But in a new study scientists have designed and fabricated an invisibility cloak that Engineers give invisibility

    Original URL path: http://phys.org/news/2016-01-fast-moving-invisibility-cloaks-visible.html (2016-02-13)
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  • Scientists propose high-efficiency wireless power transfer system
    in motion electric motor car powering as the fourth generation personal mobility Wireless power transfer enhanced by metamaterials April 30 2015 Phys org Over the past decade research on wireless power transfer has led to the development of several commercial applications such as wireless charging of mobile devices and electric toothbrushes as well as wireless Omnidirectional free space wireless charging developed July 7 2015 Mobile devices such as smartphones and laptops have become indispensable portable items in modern life but one big challenge remains to fully enjoying these devices keeping their batteries charged Researchers boost wireless power transfer with magnetic field enhancement July 23 2015 Research from North Carolina State University and Carnegie Mellon University shows that passing wireless power transfer through a magnetic resonance field enhancer MRFE which can be as simple as a copper loop can Recommended for you Physicists create first photonic Maxwell s demon February 12 2016 Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise February 12 2016 Members of the International Daya Bay Collaboration who track the production and flavor shifting behavior of electron antineutrinos generated at a nuclear power complex in China have obtained the most precise measurement Einstein s waves a 100 year odyssey February 12 2016 When Albert Einstein forged the bedrock theory of modern physics 100 years ago he had no computer no internet no printer ballpoint pens and pocket calculators did not exist and few homes had telephones Engineers develop new flat ultralight lens that could change how cameras are designed February 12 2016 Imagine digital cameras or smartphones without the bulky lenses or eyeglasses with lenses that are paper thin New imaging system uses an open ended bundle of optical fibers no lenses protective housing needed February 12 2016 Researchers at the MIT Media Lab have developed a new imaging device that consists of a loose bundle of optical fibers with no need for lenses or a protective housing Announcement Thursday on Einstein s gravitational waves February 8 2016 Scientists are set to make a major announcement Thursday on efforts to pinpoint the existence of gravitational waves or ripples of space and time that transport energy across the universe 12 comments 2 5 Adjust slider to filter visible comments by rank Display comments newest first greenonions 5 5 6 Jan 26 2016 Can they make sure they don t hit the resonant frequency of my ceramic dentures That might not be fun wolfkeeper 1 5 1 Jan 26 2016 Actually Tesla s wireless power worked fine across the laboratory it had similar range to Witricity s system but it was a bit less safe because it used high voltages but he lit his lab using wireless power no problem What Tesla failed at was sending power wirelessly over hundreds

    Original URL path: http://phys.org/news/2016-01-scientists-high-efficiency-wireless-power.html (2016-02-13)
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  • 3-D printing confirms physical model of brain folds
    I never expected that kind of close pattern compared to human brain said Jun Young Chung post doctoral fellow and co first author of the paper It looks like a real brain The key to those similarities lies in the unique shape of the human brain The geometry of the brain is really important because it serves to orient the folds in certain directions said Chung Our model which has the same large scale geometry and curvature as a human brain leads to the formation of folds that matches those seen in real fetal brains quite well The largest folds seen in the model gel brain are similar in shape size and orientation to what is seen in the fetal brain and can be replicated in multiple gel experiments The smallest folds are not conserved mirroring similar variations across human brains Brains are not exactly the same from one human to another but we should all have the same major folds in order to be healthy said Chung Our research shows that if a part of the brain does not grow properly or if the global geometry is disrupted we may not have the major folds in the right place which may cause dysfunction in the brain Explore further Simple origami fold may hold the key to designing pop up furniture medical devices and scientific tools More information Nature Physics DOI 10 1038 nphys3632 Journal reference Nature Physics Provided by Harvard University 1327 shares feedback to editors Tweet Favorites Email Print PDF Featured Last comments Popular Detection of gravitational waves would open new window on universe Feb 10 2016 58 Gravitational waves detected 100 years after Einstein s prediction Feb 11 2016 144 Scientists discover hidden galaxies behind the Milky Way Feb 09 2016 3 GPS tracking down to the centimeter Feb 11 2016 10 A metal that behaves like water Feb 11 2016 2 more Phys org on facebook Relevant PhysicsForums posts Zeno s arrow paradox 39 minutes ago Arrows vs plate armor 50 minutes ago Wave impedance of free space 51 minutes ago Work done on a stationary bycicle 54 minutes ago Brainstorming Large scale piezoelectricity generation 2 hours ago free fall acceleration help 2 hours ago More from General Physics Related Stories Simple origami fold may hold the key to designing pop up furniture medical devices and scientific tools January 26 2016 What if you could make any object out of a flat sheet of paper That future is on the horizon thanks to new research by L Mahadevan the Lola England de Valpine Professor of Applied Mathematics Organismic and Evolutionary Recommended for you Physicists create first photonic Maxwell s demon February 12 2016 Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise February 12 2016 Members of

    Original URL path: http://phys.org/news/2016-02-d-physical-brain.html (2016-02-13)
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  • Coupling two 'tabletop' laser-plasma accelerators: A step toward ultrapowerful accelerators
    No beam came out We were stunned says Jeroen van Tilborg a long time member of the BELLA Center and its predecessor the LOASIS Program where he earned his PhD from Eindhoven Technical University Suddenly there were four or five of us sitting around scribbling on the backs of envelopes ATAP scientists had used discharge capillaries to inject and accelerate electrons for over 10 years but this was the first time anyone had shot an external electron beam into one They d never dealt with the full effects of the powerful discharge current it ionizes the gas and forms an optical waveguide through the plasma but also creates a strong magnetic field that can blow apart a pre existing electron beam Or more optimistically can shape and focus it Van Tilborg called dibs on studying the problem and soon realized the pulsed magnetic field would make an excellent plasma lens Such a fast acting lens could find many uses for example by conditioning beams of existing free electron lasers Its immediate application was to tightly focus the staging experiment s injector beam The final configuration gas jet injector plasma lens plasma mirror discharge capillary second stage and diagnostics showed energy gains for significant portions of the electron beam of around a hundred million electron volts The success of the experiment resulted from on the job discoveries plus continuous feedback between experimental observations and computer modeling Running on a Cray supercomputer at DOE s National Energy Research Scientific Computing Center NERSC at Berkeley Lab the highly efficient INF RNO code for modeling laser and plasma interactions could turn a day s experimental data into a simulation almost overnight like dailies on a movie set Among many other questions intricacies of laser timing could be explored focusing the energetic but ragged beam from the gas jet could be simulated even as the serendipitous discovery of how to actually do it was becoming a reality Through matching to the experimental observations simulation can see everything says Carlo Benedetti of the BELLA Center s simulation team who led development of INF RNO We can see how the laser beam is behaving and understand which electrons are the ones being accelerated The first successful coupling of two independent laser plasma accelerators has proven the principle Next comes the real thing We re ready for staging BELLA says Leemans using two charge capillary LPAs We ll split the BELLA laser beam capable of a quadrillion watts a petawatt per 40 femtosecond pulse every second The first stage should bring up the beam to about 5 GeV We will do the bunch transport with our capillary lens and play around with the timing of the second pulse We should come out of the second stage with 10 GeV And while in the staging experiment we re only trapping about three or four percent of the electrons available in BELLA we ll be able to trap 100 percent of the charge Even better says Steinke BELLA is much

    Original URL path: http://phys.org/news/2016-02-coupling-tabletop-laser-plasma-ultrapowerful.html (2016-02-13)
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  • Partitioning by collision
    27 2015 A North Carolina State University physicist and his German colleagues have created a new more precise algorithm for simulating particle interactions when a single impurity is introduced into a Fermi sea The algorithm shows Turbulence in bacterial cultures November 30 2015 Turbulent flows surround us from complex cloud formations to rapidly flowing rivers Populations of motile bacteria in liquid media can also exhibit patterns of collective motion that resemble turbulent flows provided the The quantum fridge February 1 2016 When cold milk is poured into a hot cup of tea a temperature equilibrium is reached very quickly The milk droplets and the tea particles interact and after a few moments they all have the same average energy This process Recommended for you Physicists create first photonic Maxwell s demon February 12 2016 Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise February 12 2016 Members of the International Daya Bay Collaboration who track the production and flavor shifting behavior of electron antineutrinos generated at a nuclear power complex in China have obtained the most precise measurement Einstein s waves a 100 year odyssey February 12 2016 When Albert Einstein forged the bedrock theory of modern physics 100 years ago he had no computer no internet no printer ballpoint pens and pocket calculators did not exist and few homes had telephones Engineers develop new flat ultralight lens that could change how cameras are designed February 12 2016 Imagine digital cameras or smartphones without the bulky lenses or eyeglasses with lenses that are paper thin New imaging system uses an open ended bundle of optical fibers no lenses protective housing needed February 12 2016 Researchers at the MIT Media Lab have developed a new imaging device that consists of a loose bundle of optical fibers with no need for lenses or a protective housing Announcement Thursday on Einstein s gravitational waves February 8 2016 Scientists are set to make a major announcement Thursday on efforts to pinpoint the existence of gravitational waves or ripples of space and time that transport energy across the universe 9 comments 2 5 Adjust slider to filter visible comments by rank Display comments newest first Whydening Gyre 5 5 1 Feb 05 2016 Same size different shape properties it s still the Brazil Nut Effect The REAL experiment is to see if particles ALL exactly alike do this over an even longer length of time of course I ll bet they do RealScience 5 5 2 Feb 06 2016 wg umm if the particles are ALL exactly alike how can you tell if they have de mixed Whydening Gyre 5 5 1 Feb 07 2016 Well a paint mark maybe Different colors WAs wonderin how long it would take someone to catch on RealScience 5 5

    Original URL path: http://phys.org/news/2016-02-partitioning-collision.html (2016-02-13)
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  • Walking on water: Researchers unravel science of skipping spheres
    profound discovery Truscott s findings have various applications Not only do they explain the physics of water bouncing balls they also establish a framework for designers to tune elastic objects for better performance The study also provides insight into methods for modeling objects that interact with the water surface and have elastic responses to the surface like rubber boats tubes wakeboards and water skis said Truscott The elasticity of each of these objects affects the manner in which they interact with the water surface which as we have shown can differ dramatically from rigid objects Explore further The cooperative effects of tension and elasticity More information Jesse Belden et al Elastic spheres can walk on water Nature Communications 2016 DOI 10 1038 ncomms10551 Journal reference Nature Communications Provided by Utah State University 25 shares feedback to editors Tweet Favorites Email Print PDF Featured Last comments Popular Detection of gravitational waves would open new window on universe Feb 10 2016 58 Gravitational waves detected 100 years after Einstein s prediction Feb 11 2016 144 Scientists discover hidden galaxies behind the Milky Way Feb 09 2016 3 GPS tracking down to the centimeter Feb 11 2016 10 A metal that behaves like water Feb 11 2016 2 more Phys org on facebook Relevant PhysicsForums posts Zeno s arrow paradox 40 minutes ago Arrows vs plate armor 50 minutes ago Wave impedance of free space 52 minutes ago Work done on a stationary bycicle 54 minutes ago Brainstorming Large scale piezoelectricity generation 2 hours ago free fall acceleration help 2 hours ago More from General Physics Related Stories The cooperative effects of tension and elasticity April 7 2014 Phys org It was a straightforward experiment drop tiny solid spheres of metal and ceramic into a gel material and see what they would do Scientists bend elastic waves with new metamaterials that could have commercial applications January 22 2015 Sound waves passing through the air objects that break a body of water and cause ripples or shockwaves from earthquakes all are considered elastic waves These waves travel at the surface or through a material without Researcher investigates capsule elasticity August 31 2015 Carnegie Mellon University s Mechanical Engineering and Chemical Engineering Professor Shelley Anna recently received a National Science Foundation grant for a project which will explore ways to optimize capsules micrometer sized The quantum fridge February 1 2016 When cold milk is poured into a hot cup of tea a temperature equilibrium is reached very quickly The milk droplets and the tea particles interact and after a few moments they all have the same average energy This process The future of medicine could be found in this tiny crystal ball February 4 2016 A Drexel University materials scientist has discovered a way to grow a crystal ball in a lab Not the kind that soothsayers use to predict the future but a microscopic version that could be used to encapsulate medication Team creates elastic materials that gleam when stretched February 4 2016 Researchers

    Original URL path: http://phys.org/news/2016-02-unravel-science-spheres.html (2016-02-13)
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  • General Physics News - Science News, Physics News, Physics, Material Sciences, Science
    theory of relativity predicted the existence of a dark side to the cosmos He thought there were invisible gravitational waves ripples in space time produced by some 17 hours ago in General Physics 21 0 What happens when LIGO texts you to say it s detected one of Einstein s predicted gravitational waves The best thing about a day in my life on the lookout for gravitational waves is that I never know when it will begin 17 hours ago in General Physics 24 0 Gravitational waves discovered top scientists respond One hundred years ago Albert Einstein published his general theory of relativity which described how gravity warps and distorts space time 17 hours ago in General Physics 168 2 Einstein writings show theory 100 years ahead of time It took a century but the theory from Albert Einstein handwritten neatly on paper that is now yellowing has finally been vindicated Feb 11 2016 in General Physics 27 1 GGC physicist leads team in innovative black hole research Black holes are the subject of much fascination not just in science but also in popular media For example the 2014 movie Interstellar portrays a fast rotating supermassive black hole into which the protagonist falls Feb 11 2016 in General Physics 12 0 A magical space time ripple that wasn t believed at first The wave that made history snuck up on them David Shoemaker will never forget the date September 14 2015 when he woke up to a message alerting him that an underground detector had spotted a 1 3 billion year old ripple Feb 11 2016 in General Physics 273 17 In depth Q A Three researchers on the front line of today s gravitational wave discovery News broke earlier today that elusive ripples in space time known as gravitational

    Original URL path: http://phys.org/physics-news/physics/sort/date/all/?utm_source=sort-date&utm_medium=link&utm_campaign=tmpl-main-l (2016-02-13)
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