2 hours agoSpace consists of tiny elementary cells or "atoms of space" in some modern theories of quantum gravity trying to unify General Relativity and Quantum Mechanics. Quantum gravity should make it possible to describe the evolution of the universe from the Big Bang to today within one single theory. Credit: T. Thiemann (FAU Erlangen), Albert Einstein Institute, Milde Marketing Wissenschaftskommunikation, exozet effects (Phys.org) —Present-day physics cannot describe what happened in the Big Bang. Quantum theory and the theory of relativity fail in this almost infinitely dense and hot primal state of the universe. Only an all-encompassing theory of quantum gravity which unifies these two fundamental pillars of physics could provide an insight into how the universe began. Scientists from the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Golm/Potsdam and the Perimeter Institute in Canada have made an important discovery along this route. According to their theory, space consists of tiny "building blocks". Taking this as their starting point, the scientists arrive at one of the most fundamental equations of cosmology, the Friedmann equation, which describes the universe. This shows that quantum mechanics and the theory of relativity really can be unified. For almost a century, the two major theories of physics have coexisted but have been irreconcilable: while Einstein's General Theory of Relativity describes gravity and thus the world at large, quantum physics describes the world of atoms and elementary particles. Both theories work extremely well within their own boundaries; however, they break down, as currently formulated, in certain extreme regions, at extremely tiny distances, the so-called Planck scale, for example. Space and time thus have no meaning in black holes or, most notably, during the Big Bang. Daniele Oriti from the Albert Einstein Institute uses a fluid to illustrate this situation: "We can describe the behaviour of flowing water with the long-known classical theory of hydrodynamics. But if we advance to smaller and smaller scales and eventually come across individual atoms, it no longer applies. Then we need quantum physics." Just as a liquid consists of atoms, Oriti imagines space to be made up of tiny cells or "atoms of space", and a new theory is required to describe them: quantum gravity. Continuous space is broken down into elementary cells In Einstein's relativity theory, space is a continuum. Oriti now breaks down this space into tiny elementary cells and applies the principles of quantum physics to them, thus to space itself and to the theory of relativity describing it. This is the unification idea. A fundamental problem of all approaches to quantum gravity consists in bridging the huge dimensional scales from the space atoms to the dimensions of the universe. This is where Oriti, his colleague Lorenzo Sindoni and Steffen Gielen, a former postdoc at the AEI who is now a researcher at the Perimeter Institute in Canada, have succeeded. Their approach is based on so-called group field theory. This is closely related to loop quantum gravity, which the AEI has been developing for some time. The task now consisted in describing how the space of the universe evolves from the elementary cells. Staying with the idea of fluids: How can the hydrodynamics for the flowing water be derived from a theory for the atoms? This extremely demanding mathematical task recently led to a surprising success. "Under special assumptions, space is created from these building blocks, and evolves like an expanding universe," explains Oriti. "For the first time, we were thus able to derive the Friedmann equation directly as part of our complete theory of the structure of space," he adds. This fundamental equation, which describes the expanding universe, was derived by the Russian mathematician Alexander Friedman in the 1920s on the basis of the General Theory of Relativity. The scientists have therefore succeeded in bridging the gap from the microworld to the macroworld, and thus from quantum mechanics to the General Theory of Relativity: they show that space emerges as the condensate of these elementary cells and evolves into a universe which resembles our own. Quantum gravity could now answer questions regarding the Big Bang Oriti and his colleagues thus see themselves at the start of a difficult but promising journey. Their current solution is valid only for a homogeneous universe - but our real world is much more complex. It contains inhomogeneities, such as planets, stars and galaxies. The physicists are currently working on including them in their theory. And they have planned something really big as their ultimate goal. On the one hand, they want to investigate whether it is possible to describe space even during the Big Bang. A few years ago, former AEI researcher Martin Bojowald found clues, as part of a simplified version of loop quantum gravity, that time and space can possibly be traced back through the Big Bang. With their theory, Oriti and his colleagues are hoping to confirm or improve this result. If it continues to prove successful, the researchers could perhaps use it to explain also the assumed inflationary expansion of the universe shortly after the Big Bang as well, and the nature of the mysterious dark energy. This energy field causes the universe to expand at an ever-increasing rate. Oriti's colleague Lorenzo Sindoni therefore adds: "We will only be able to really understand the evolution of the universe when we have a theory of quantum gravity." The AEI researchers are in good company here: Einstein and his successors, who have been searching for this for almost one hundred years.
More information: Gielen, S., Oriti, D. and Sindoni, L. Cosmology from Group Field Theory Formalism for Quantum Gravity, Physical Review Letters, 16 July 2013. arxiv.org/abs/1303.3576 why do plastic warp when heated 1 hour ago I have noticed that, in the plastic extruded from 3d printers, plastic fork that i put near the fire during bonfires,...Time.3 hours ago I have a question that might have a complex answer. If time didn't exist could anything move or even happen?Converging wave interference generating a caustic10 hours ago Dear reader, I have written a paper which I require a reference for converging wave interference generating a caustic....Rocket acceleration problem12 hours ago A model rocket is fired upward. The rocket's average initial acceleration is 44.5 m/s2 until the fuel burns out in...Using 1/2 mv^2 to calculate the superlaser?15 hours ago Many educated individuals including Astrophysicists (Curtis Saxton) have used just the formulae for ke to come to a...planck's constant and E=mc^220 hours ago 1.how to derive the planck's constant ? how does he found that?how can it be correct? 2.derivation of E=mc^2.More from Physics Forums - General Physics Related StoriesTheorists apply loop quantum gravity theory to black hole
(Phys.org) —Physicists Rodolfo Gambini and Jorge Pullin of University of the Republic in Montevideo, Uruguay, and Louisiana State University respectively, have applied the theory of Loop Quantum Gravity ... GR20/Amaldi10: Space-time is not the same for everyone
Before the Big Bang, space-time as we know it did not exist. So how was it born? The process of creating normal space-time from an earlier state dominated by quantum gravity has been studied for years by ... The Big Bang versus the 'Big Bounce'
Two fundamental concepts in physics, both of which explain the nature of the Universe in many ways, have been difficult to reconcile with each other. European researchers developed a mathematical approach ... Removing complexity layers from the universe's creation
Complicated statistical behaviour observed in complex systems such as early universe can often be understood if it is broken down into simpler ones. Two physicists, Petr Jizba (currently affiliated with the Czech Technical ... String theory researchers simulate big-bang on supercomputer
(PhysOrg.com) -- A trio of Japanese physicists have applied a reformulation of string theory, called IIB, whereby matrices are used to describe the properties of the physical universe, on a supercomputer, to effectively sho ... 'Listening' to black holes form with gravity waves
New technology that breaks the quantum measurement barrier has been developed to detect the gravity waves first predicted by Einstein in 1916. Recommended for youPhysics team suggests possible way to make quantum cryptography available in handheld machines
(Phys.org) —A team of physicists at Bristol University in the U.K. has proposed a possible way to allow for quantum cryptography between a large station and a small hand held device. They describe such ... New component in the quantum electronics toolbox
The coherence of quantum systems is the foundation upon which hardware for future information technologies is based. Quantum information is carried by units called quantum bits, or qubits. They can be used ... Quantum inverted pendulum: Control scheme dynamically maintains unstable quantum system
A simple pendulum has two equilibrium points: hanging in the "down" position and perfectly inverted in the "up" position. While the "down" position is a stable equilibrium, the inverted position is definitely ... Quantum measurement carries information even when the measurement outcome is unread
(Phys.org) —Some tasks that are impossible in classical systems can be realized in quantum systems. This fact is exemplified by a new protocol that highlights an important difference between classical and ... Quantum computing: Manipulating a single nuclear spin qubit of a laser cooled atom
It is advantageous to implement a quantum bit (qubit) with a single nuclear spin because the nuclear spin is robust against any stray magnetic fields. This robustness can be attributed to the small magnitude ... User comments : 6Adjust slider to filter visible comments by rank Display comments: newest first Teech21 / 5 (4) 1 hour ago Dense aether theory explains it with superfluid condensation. When the gas changes phase of matter, the density fluctuations emerge. These density fluctuations have character of string mesh inside of dense elastic fluids. Without dense aether model the theories like the string theory, string net liquid theory and/or loop quantum gravity theories appear pretty ad-hoced: why some strings should exist in vacuum? Note that the string mesh mediated transverse waves of light, which are much slower than the longitudinal waves - which explains, why universe expanded fast at the moment, when the primordial space-time (so called false vacuum) condensed into strings. The dense aether model just doesn't consider the Big bang as the main source of this event. Teech21 / 5 (4) 1 hour ago If we would live at the water surface like waterstriders and if we would observe them with their surface ripples, we could observe the same stringy artifacts at both tiny, both large distance scales. it's because the transverse surface ripples are slow, so they create large extent of space, but they tend to scatter into longitudinal waves, when they're too small or too large. And this scattering exhibits the same geometry, like the density fluctuations during condensation of gas. The difference from Big Bang model is, the stringy character of space-time is not independent on actual location of observer, but a function of relative distance from it. If we would move across universe with high speed, some foamy density fluctuations (visible as dark matter strings and CMBR fluctuations) would dissolve before us and emerged behind our back again like during travel through dense fog. Teech21 / 5 (4) 50 minutes ago This dynamics dissolving of space-time and its condensation back it's called the casual dynamic triangulation in quantum gravity theories and you can watch its animation here. IMO it's the most insightful concept of quantum gravity theories developed so far (comparable to AdS/CFT correspondence in quantum holography). Please note, that the loop quantum gravity theory is dual to string theory in certain extent: in string theory (which is quantum mechanics centric) the space-time is essentially flat (it adheres on Lorentz symmetry) and the particles are formed with strings. Whereas in LQG (which is general relativity centric) the space-time is formed with foam and the particles are considered pin-point nodes of that foam. In AWT model the actual truth is somewhere inbetween: the particles are formed with more dense clusters of space-time foam. vacuum-mechanics1 / 5 (3) 40 minutes ago
We hope this would be a right theory; anyway it seems to be a technical conventional concept which is difficult for general people. Maybe this simple alternative idea could help… http://www.vacuum...=9〈=en Q-Starnot rated yet 28 minutes ago @ Zephyr, ya have managed to ruin a very good topic for discussion right out of the gate,,,, this was one that I could have learned a lot from,,, thanks for spoiling it for me. Teech21 / 5 (1) 20 minutes ago Yes, - understand your stance completely and very well. The long-term visitors of this forum here aren't actually interested about most objective view of reality, they're interested about communication and twaddling about it. When they get some solution which doesn't allow any other interpretations, they're getting actually upset with it - because what they actually want is to handle it like unsolved mystery and to speculate about it freely (particularly because religious people are attracted to mysteries, not ready-made solutions). In the same (just even more pronounced) way the mainstream physicists get upset with every attempt for finalizing of their research. So I can understand perfectly, how the contemporary employment driven civilization is working: for me the people are just easily predictable animals. More news storiesButterfly inspires new nanotechnologyBy mimicking microscopic structures in the wings of a butterfly, an international research team has developed a device smaller than the width of a human hair that could make optical communication faster and ... Ultracold Big Bang experiment successfully simulates evolution of early universe(Phys.org) —Physicists have reproduced a pattern resembling the cosmic microwave background radiation in a laboratory simulation of the Big Bang, using ultracold cesium atoms in a vacuum chamber at the ... Physicists use element 115 to highlight a way for taking new superheavy elements' fingerprintsAn international team of researchers presents fresh evidence that confirms the existence of the superheavy chemical element 115. The experiment was conducted at the GSI Helmholtz Center for Heavy Ion Res ... Cosmic ray finding: Researchers take a step closer to finding cosmic ray origins(Phys.org) —The origin of cosmic rays in the universe has confounded scientists for decades. But a study by researchers using data from the IceCube Neutrino Observatory at the South Pole reveals new informat ... Quantum measurement carries information even when the measurement outcome is unread(Phys.org) —Some tasks that are impossible in classical systems can be realized in quantum systems. This fact is exemplified by a new protocol that highlights an important difference between classical and ... Advancing graphene for post-silicon computer logic: Researchers pioneer new approach for graphene logic circuitsA team of researchers from the University of California, Riverside's Bourns College of Engineering have solved a problem that previously presented a serious hurdle for the use of graphene in electronic devices. Creating a 'window' to the brain: Novel transparent skull implant provide new treatment optionsA team of University of California, Riverside researchers have developed a novel transparent skull implant that literally provides a "window to the brain", which they hope will eventually open new treatment ... Single tone alerts brain to complete sound patternThe processing of sound in the brain is more advanced than previously thought. When we hear a tone, our brain temporarily strengthens that tone but also any tones separated from it by one or more octaves. ... Robotics first: Engineering team makes artificial muscles that can lift loads 80 times their weightA research team from the National University of Singapore's (NUS) Faculty of Engineering has created efficient artificial, or "robotic" muscles, which could carry a weight 80 times its own and able to extend to five times ... NuSTAR delivers the X-ray goods(Phys.org) —NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is giving the wider astronomical community a first look at its unique X-ray images of the cosmos. The first batch of data from the black-hole ... © Phys.org™ 2003-2013  
2 hours agoSpace consists of tiny elementary cells or "atoms of space" in some modern theories of quantum gravity trying to unify General Relativity and Quantum Mechanics. Quantum gravity should make it possible to describe the evolution of the universe from the Big Bang to today within one single theory. Credit: T. Thiemann (FAU Erlangen), Albert Einstein Institute, Milde Marketing Wissenschaftskommunikation, exozet effects (Phys.org) —Present-day physics cannot describe what happened in the Big Bang. Quantum theory and the theory of relativity fail in this almost infinitely dense and hot primal state of the universe. Only an all-encompassing theory of quantum gravity which unifies these two fundamental pillars of physics could provide an insight into how the universe began. Scientists from the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Golm/Potsdam and the Perimeter Institute in Canada have made an important discovery along this route. According to their theory, space consists of tiny "building blocks". Taking this as their starting point, the scientists arrive at one of the most fundamental equations of cosmology, the Friedmann equation, which describes the universe. This shows that quantum mechanics and the theory of relativity really can be unified. For almost a century, the two major theories of physics have coexisted but have been irreconcilable: while Einstein's General Theory of Relativity describes gravity and thus the world at large, quantum physics describes the world of atoms and elementary particles. Both theories work extremely well within their own boundaries; however, they break down, as currently formulated, in certain extreme regions, at extremely tiny distances, the so-called Planck scale, for example. Space and time thus have no meaning in black holes or, most notably, during the Big Bang. Daniele Oriti from the Albert Einstein Institute uses a fluid to illustrate this situation: "We can describe the behaviour of flowing water with the long-known classical theory of hydrodynamics. But if we advance to smaller and smaller scales and eventually come across individual atoms, it no longer applies. Then we need quantum physics." Just as a liquid consists of atoms, Oriti imagines space to be made up of tiny cells or "atoms of space", and a new theory is required to describe them: quantum gravity. Continuous space is broken down into elementary cells In Einstein's relativity theory, space is a continuum. Oriti now breaks down this space into tiny elementary cells and applies the principles of quantum physics to them, thus to space itself and to the theory of relativity describing it. This is the unification idea. A fundamental problem of all approaches to quantum gravity consists in bridging the huge dimensional scales from the space atoms to the dimensions of the universe. This is where Oriti, his colleague Lorenzo Sindoni and Steffen Gielen, a former postdoc at the AEI who is now a researcher at the Perimeter Institute in Canada, have succeeded. Their approach is based on so-called group field theory. This is closely related to loop quantum gravity, which the AEI has been developing for some time. The task now consisted in describing how the space of the universe evolves from the elementary cells. Staying with the idea of fluids: How can the hydrodynamics for the flowing water be derived from a theory for the atoms? This extremely demanding mathematical task recently led to a surprising success. "Under special assumptions, space is created from these building blocks, and evolves like an expanding universe," explains Oriti. "For the first time, we were thus able to derive the Friedmann equation directly as part of our complete theory of the structure of space," he adds. This fundamental equation, which describes the expanding universe, was derived by the Russian mathematician Alexander Friedman in the 1920s on the basis of the General Theory of Relativity. The scientists have therefore succeeded in bridging the gap from the microworld to the macroworld, and thus from quantum mechanics to the General Theory of Relativity: they show that space emerges as the condensate of these elementary cells and evolves into a universe which resembles our own. Quantum gravity could now answer questions regarding the Big Bang Oriti and his colleagues thus see themselves at the start of a difficult but promising journey. Their current solution is valid only for a homogeneous universe - but our real world is much more complex. It contains inhomogeneities, such as planets, stars and galaxies. The physicists are currently working on including them in their theory. And they have planned something really big as their ultimate goal. On the one hand, they want to investigate whether it is possible to describe space even during the Big Bang. A few years ago, former AEI researcher Martin Bojowald found clues, as part of a simplified version of loop quantum gravity, that time and space can possibly be traced back through the Big Bang. With their theory, Oriti and his colleagues are hoping to confirm or improve this result. If it continues to prove successful, the researchers could perhaps use it to explain also the assumed inflationary expansion of the universe shortly after the Big Bang as well, and the nature of the mysterious dark energy. This energy field causes the universe to expand at an ever-increasing rate. Oriti's colleague Lorenzo Sindoni therefore adds: "We will only be able to really understand the evolution of the universe when we have a theory of quantum gravity." The AEI researchers are in good company here: Einstein and his successors, who have been searching for this for almost one hundred years.
More information: Gielen, S., Oriti, D. and Sindoni, L. Cosmology from Group Field Theory Formalism for Quantum Gravity, Physical Review Letters, 16 July 2013. arxiv.org/abs/1303.3576 why do plastic warp when heated1 hour agoI have noticed that, in the plastic extruded from 3d printers, plastic fork that i put near the fire during bonfires,...Time.3 hours agoI have a question that might have a complex answer. If time didn't exist could anything move or even happen?Converging wave interference generating a caustic10 hours agoDear reader, I have written a paper which I require a reference for converging wave interference generating a caustic....Rocket acceleration problem12 hours agoA model rocket is fired upward. The rocket's average initial acceleration is 44.5 m/s2 until the fuel burns out in...Using 1/2 mv^2 to calculate the superlaser?15 hours agoMany educated individuals including Astrophysicists (Curtis Saxton) have used just the formulae for ke to come to a...planck's constant and E=mc^220 hours ago1.how to derive the planck's constant ? how does he found that?how can it be correct? 2.derivation of E=mc^2.More from Physics Forums - General Physics Related StoriesTheorists apply loop quantum gravity theory to black hole
(Phys.org) —Physicists Rodolfo Gambini and Jorge Pullin of University of the Republic in Montevideo, Uruguay, and Louisiana State University respectively, have applied the theory of Loop Quantum Gravity ... GR20/Amaldi10: Space-time is not the same for everyone
Before the Big Bang, space-time as we know it did not exist. So how was it born? The process of creating normal space-time from an earlier state dominated by quantum gravity has been studied for years by ... The Big Bang versus the 'Big Bounce'
Two fundamental concepts in physics, both of which explain the nature of the Universe in many ways, have been difficult to reconcile with each other. European researchers developed a mathematical approach ... Removing complexity layers from the universe's creation
Complicated statistical behaviour observed in complex systems such as early universe can often be understood if it is broken down into simpler ones. Two physicists, Petr Jizba (currently affiliated with the Czech Technical ... String theory researchers simulate big-bang on supercomputer
(PhysOrg.com) -- A trio of Japanese physicists have applied a reformulation of string theory, called IIB, whereby matrices are used to describe the properties of the physical universe, on a supercomputer, to effectively sho ... 'Listening' to black holes form with gravity waves
New technology that breaks the quantum measurement barrier has been developed to detect the gravity waves first predicted by Einstein in 1916. Recommended for youPhysics team suggests possible way to make quantum cryptography available in handheld machines
(Phys.org) —A team of physicists at Bristol University in the U.K. has proposed a possible way to allow for quantum cryptography between a large station and a small hand held device. They describe such ... New component in the quantum electronics toolbox
The coherence of quantum systems is the foundation upon which hardware for future information technologies is based. Quantum information is carried by units called quantum bits, or qubits. They can be used ... Quantum inverted pendulum: Control scheme dynamically maintains unstable quantum system
A simple pendulum has two equilibrium points: hanging in the "down" position and perfectly inverted in the "up" position. While the "down" position is a stable equilibrium, the inverted position is definitely ... Quantum measurement carries information even when the measurement outcome is unread
(Phys.org) —Some tasks that are impossible in classical systems can be realized in quantum systems. This fact is exemplified by a new protocol that highlights an important difference between classical and ... Quantum computing: Manipulating a single nuclear spin qubit of a laser cooled atom
It is advantageous to implement a quantum bit (qubit) with a single nuclear spin because the nuclear spin is robust against any stray magnetic fields. This robustness can be attributed to the small magnitude ... User comments : 6Adjust slider to filter visible comments by rank Display comments: newest first Teech21 / 5 (4) 1 hour ago
Dense aether theory explains it with superfluid condensation. When the gas changes phase of matter, the density fluctuations emerge. These density fluctuations have character of string mesh insideof dense elastic fluids. Without dense aether model the theories like the string theory, string net liquid theory and/or loop quantum gravity theories appear pretty ad-hoced: why some strings should exist in vacuum? Note that the string mesh mediated transverse waves of light, which are much slower than the longitudinal waves - which explains, why universe expanded fast at the moment, when the primordial space-time (so called false vacuum) condensed into strings. The dense aether model just doesn't consider the Big bang as the main source of this event. Teech21 / 5 (4) 1 hour ago If we would live at the water surface like waterstriders and if we would observe them with their surface ripples, we could observe the same stringy artifacts at both tiny, both large distance scales. it's because the transverse surface ripples are slow, so they create large extent of space, but they tend to scatter into longitudinal waves, when they're too small or too large. And this scattering exhibits the same geometry, like the density fluctuations during condensation of gas. The difference from Big Bang model is, the stringy character of space-time is not independent on actual location of observer, but a function of relative distance from it. If we would move across universe with high speed, some foamy density fluctuations (visible as dark matter strings and CMBR fluctuations) would dissolve before us and emerged behind our back again like during travel through dense fog. Teech21 / 5 (4) 50 minutes ago This dynamics dissolving of space-time and its condensation back it's called the casual dynamic triangulationin quantum gravity theories and you can watch its animation here. IMO it's the most insightful concept of quantum gravity theories developed so far (comparable to AdS/CFT correspondence in quantum holography). Please note, that the loop quantum gravity theory is dual to string theory in certain extent: in string theory (which is quantum mechanics centric) the space-time is essentially flat (it adheres on Lorentz symmetry) and the particles are formed with strings. Whereas in LQG (which is general relativity centric) the space-time is formed with foam and the particles are considered pin-point nodes of that foam. In AWT model the actual truth is somewhere inbetween: the particles are formed with more dense clusters of space-time foam. vacuum-mechanics1 / 5 (3) 40 minutes ago
We hope this would be a right theory; anyway it seems to be a technical conventional concept which is difficult for general people. Maybe this simple alternative idea could help… http://www.vacuum...=9〈=en Q-Starnot rated yet 28 minutes ago @ Zephyr, ya have managed to ruin a very good topic for discussion right out of the gate,,,, this was one that I could have learned a lot from,,, thanks for spoiling it for me. Teech21 / 5 (1) 20 minutes ago
Yes, - understand your stance completely and very well. The long-term visitors of this forum here aren't actually interested about most objective view of reality, they're interested about communication and twaddling about it. When they get some solution which doesn't allow any other interpretations, they're getting actually upset with it - because what they actually want is to handle it like unsolved mystery and to speculate about it freely (particularly because religious people are attracted to mysteries, not ready-made solutions). In the same (just even more pronounced) way the mainstream physicists get upsetwith every attempt for finalizing of their research. So I can understand perfectly, how the contemporary employment driven civilization is working: for me the people are just easily predictable animals. More news storiesButterfly inspires new nanotechnologyBy mimicking microscopic structures in the wings of a butterfly, an international research team has developed a device smaller than the width of a human hair that could make optical communication faster and ... Ultracold Big Bang experiment successfully simulates evolution of early universe(Phys.org) —Physicists have reproduced a pattern resembling the cosmic microwave background radiation in a laboratory simulation of the Big Bang, using ultracold cesium atoms in a vacuum chamber at the ... Physicists use element 115 to highlight a way for taking new superheavy elements' fingerprintsAn international team of researchers presents fresh evidence that confirms the existence of the superheavy chemical element 115. The experiment was conducted at the GSI Helmholtz Center for Heavy Ion Res ... Cosmic ray finding: Researchers take a step closer to finding cosmic ray origins(Phys.org) —The origin of cosmic rays in the universe has confounded scientists for decades. But a study by researchers using data from the IceCube Neutrino Observatory at the South Pole reveals new informat ... Quantum measurement carries information even when the measurement outcome is unread(Phys.org) —Some tasks that are impossible in classical systems can be realized in quantum systems. This fact is exemplified by a new protocol that highlights an important difference between classical and ... Advancing graphene for post-silicon computer logic: Researchers pioneer new approach for graphene logic circuitsA team of researchers from the University of California, Riverside's Bourns College of Engineering have solved a problem that previously presented a serious hurdle for the use of graphene in electronic devices. Creating a 'window' to the brain: Novel transparent skull implant provide new treatment optionsA team of University of California, Riverside researchers have developed a novel transparent skull implant that literally provides a "window to the brain", which they hope will eventually open new treatment ... Single tone alerts brain to complete sound patternThe processing of sound in the brain is more advanced than previously thought. When we hear a tone, our brain temporarily strengthens that tone but also any tones separated from it by one or more octaves. ... Robotics first: Engineering team makes artificial muscles that can lift loads 80 times their weightA research team from the National University of Singapore's (NUS) Faculty of Engineering has created efficient artificial, or "robotic" muscles, which could carry a weight 80 times its own and able to extend to five times ... NuSTAR delivers the X-ray goods(Phys.org) —NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is giving the wider astronomical community a first look at its unique X-ray images of the cosmos. The first batch of data from the black-hole ... © Phys.org™ 2003-2013  via Science - Google News http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNEOZ6hfole9LaW7YSEwjZuSJslriA&url=http://phys.org/news/2013-09-quantum-big.html | |||
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