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| An overview of how the LHC at CERN can look for dark matter. (Credit: STFC/Ben Gilliland) (Click on Image for larger viewing) |
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| An overview of how the LHC at CERN can look for dark matter. (Credit: STFC/Ben Gilliland) (Click on Image for larger viewing) |
The Hyper-Kamiokande project aims to address the mysteries of the origin and evolution of the Universe's matter and to confront theories of elementary particle unification. To realize these goals the project will combine a high intensity neutrino beam from the Japan Proton Accelerator Research Complex (J-PARC) with a new detector based upon precision neutrino experimental techniques developed in Japan. The Hyper-Kamiokande project will be about 25 times larger than Super-Kamiokande, the research facility that was first to discover evidence for neutrino mass in 1998. On this occasion, a research proto-collaboration will be formed to advance the Hyper-Kamiokande project internationally and a symposium will be held to commemorate and promote the event. In addition, a signing ceremony marking an agreement for the promotion of the project between the University of Tokyo Institute for Cosmic Ray Research (ICRR) and the High Energy Accelerator Research Organization (KEK) Institute of Particle and Nuclear Studies will take place during the symposium. See: Hyper-Kamiokande
We present experimental evidence showing that an interacting Bose condensate in a shaken optical lattice develops a roton-maxon excitation spectrum, a feature normally associated with superfluid helium. The roton-maxon feature originates from the double-well dispersion in the shaken lattice, and can be controlled by both the atomic interaction and the lattice modulation amplitude. We determine the excitation spectrum using Bragg spectroscopy and measure the critical velocity by dragging a weak speckle potential through the condensate—both techniques are based on a digital micromirror device. Our dispersion measurements are in good agreement with a modified Bogoliubov model. DOI: http://dx.doi.org/10.1103/PhysRevLett.114.055301
"...underwriting the form languages of ever more domains of mathematics is a set of deep patterns which not only offer access to a kind of ideality that Plato claimed to see the universe as created with in the Timaeus; more than this, the realm of Platonic forms is itself subsumed in this new set of design elements-- and their most general instances are not the regular solids, but crystallographic reflection groups. You know, those things the non-professionals call . . . kaleidoscopes! * (In the next exciting episode, we'll see how Derrida claims mathematics is the key to freeing us from 'logocentrism'-- then ask him why, then, he jettisoned the deepest structures of mathematical patterning just to make his name...)
* H. S. M. Coxeter, Regular Polytopes (New York: Dover, 1973) is the great classic text by a great creative force in this beautiful area of geometry (A polytope is an n-dimensional analog of a polygon or polyhedron. Chapter V of this book is entitled 'The Kaleidoscope'....)"
Source - http://serious-science.org/videos/1060
Nobel Prize laureate David Gross on Rutherford experiments, asymptotic freedom, and the origin of the particle masses
Dark matter, the substance making up 85 percent of all the mass in the universe, is invisible. The goal of ADMX is to detect it by turning it into photons, particles of light. Dark matter was forged in the early universe, under conditions of extreme heat. ADMX, on the other hand, operates in extreme cold. Dark matter comprises most of the mass of a galaxy. To find it, ADMX will use sophisticated devices microscopic in size.
Scientists on ADMX—short for the Axion Dark Matter eXperiment—are searching for hypothetical particles called axions. The axion is a dark matter candidate that is also a bit of a dark horse, even as this esoteric branch of physics goes. See: Dark horse of the dark matter hunt
The dispute between rationalism and empiricism concerns the extent to which we are dependent upon sense experience in our effort to gain knowledge. Rationalists claim that there are significant ways in which our concepts and knowledge are gained independently of sense experience. Empiricists claim that sense experience is the ultimate source of all our concepts and knowledge.
Rationalists generally develop their view in two ways. First, they argue that there are cases where the content of our concepts or knowledge outstrips the information that sense experience can provide. Second, they construct accounts of how reason in some form or other provides that additional information about the world. Empiricists present complementary lines of thought. First, they develop accounts of how experience provides the information that rationalists cite, insofar as we have it in the first place. (Empiricists will at times opt for skepticism as an alternative to rationalism: if experience cannot provide the concepts or knowledge the rationalists cite, then we don't have them.) Second, empiricists attack the rationalists' accounts of how reason is a source of concepts or knowledge. SEE: Markie, Peter, "Rationalism vs. Empiricism http://plato.stanford.edu/entries/rationalism-empiricism/", The Stanford Encyclopedia of Philosophy (Summer 2013 Edition), Edward N. Zalta (ed.),
The Empiricism Thesis: We have no source of knowledge in S or for the concepts we use in S other than sense experience Empircism -
If the late character of our sources may incite us to doubt the authenticity of this tradition, there remains that, in its spirit, it is in no way out of character, as can be seen by reading or rereading what Plato says about the sciences fit for the formation of philosophers in book VII of the Republic, and especially about geometry at Republic, VII, 526c8-527c11. We should only keep in mind that, for Plato, geometry, as well as all other mathematical sciences, is not an end in itself, but only a prerequisite meant to test and develop the power of abstraction in the student, that is, his ability to go beyond the level of sensible experience which keeps us within the "visible" realm, that of the material world, all the way to the pure intelligible. And geometry, as can be seen through the experiment with the slave boy in the Meno (Meno, 80d1-86d2), can also make us discover the existence of truths (that of a theorem of geometry such as, in the case of the Meno, the one about doubling a square) that may be said to be "transcendant" in that they don't depend upon what we may think about them, but have to be accepted by any reasonable being, which should lead us into wondering whether such transcendant truths might not exist as well in other areas, such as ethics and matters relating to men's ultimate happiness, whether we may be able to "demonstrate" them or not.See: Frequently Asked Questions about Plato by Bernard SUZANNEWhen you examine deeply the very nature of your journey, then, you come to realize what is hidden underneath "experience." So while being an empiricist, it is necessary to know that such a joining with the rationalist correlates with the reasoned only after the mentioned experience. These are "corollary experiences," which serve to identify that which had been identified long before the sensible world had been made known.
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"When the photon exits the medium, its identity is preserved," Lukin said. "It's the same effect we see with refraction of light in a water glass. The light enters the water, it hands off part of its energy to the medium, and inside it exists as light and matter coupled together, but when it exits, it's still light. The process that takes place is the same it's just a bit more extreme -- the light is slowed considerably, and a lot more energy is given away than during refraction." See: Seeing light in new light: Scientists create never-before-seen form of matter
In physics, an anomalon is a hypothetical type of nuclear matter that shows an anomalously large reactive cross section. They were first noticed in experimental runs in the early 1980s as short tracks in film emulsions or plastic leaf detectors connected to medium-energy particle accelerators. The direction of the tracks demonstrated that they were the results of reactions taking place within the accelerator targets, but they stopped so quickly in the detectors that no obvious explanation for their behavior could be offered. A flurry of theoretical explanations followed, but over time a series of follow-up experiments failed to find strong evidence for the anomalons, and active study of the topic largely ended by the late 1980s.
Professor Emeritus Piyare L. Jain is a particle physicist at University at Buffalo. On December 6, 2006, he claimed discovery of the long-sought axion subatomic particle. [1]
The discovery involved Jain's use of 3-dimensional photographic medium targets in heavy-ion particle accelerators; modern detectors using electronic sensors were unable to detect the axion due to the very short distances and times involved, but the physical medium was able to identify about 1,200 Axion traces over years of experiment. Jain is one of the few currently working physicists with experience with that type of detector, which had been largely abandoned in favor of the modern electronic detectors.
Axions, would also have stopped interaction with normal matter at a different moment than other more massive dark particles. The lingering effects of this difference could perhaps be calculated and observed astronomically. Axions may hold the key to the Solar Corona heating problem.[40] See: Axion
Uploaded on Jan 9, 2011SETI Archive: http://seti.org/talks
The Sun's outer atmosphere or corona is heated to millions of degrees, considerably hotter than its cool surface or photosphere. Explanations for this long-standing enigma typically invoke the deposition in the corona of non-thermal energy generated by the interplay of convection and magnetic fields. However, the exact physical mechanism driving coronal heating remains unknown. During the past few years, recently built instruments like the Japanese Hinode satellite, the Swedish Solar Telescope in Spain and NASA's Solar Dynamics Observatory (SDO) combined with advanced numerical simulations have revealed a new window into how the Sun's atmosphere is energized. These results directly challenge current theories and highlight the importance of the interface region between the photosphere and corona for understanding how the solar atmosphere is heated. Dr. De Pontieu will present some of these results and describe how NASA's recently selected Interface Region Imaging Spectrograph, which is being built by Lockheed Martin's Solar and Astrophysics Laboratory in Palo Alto, in collaboration with NASA Ames, Smithsonian Astrophysical Observatory (SAO), Montana State University, Stanford University and the University of Oslo, will be able to address many of the outstanding issues and problems.
An article on IAXO has been published in the September 2014 issue of the CERN Courier. You can see the online version of the article here (link is external), or dowload the full CERN Courier issue here (link is external).
The central component of iAXo is a superconducting toroid magnet. The detector relies on a high magnetic field distributed across a large volume to convert solar axions to detectable X-ray photons. The magnet’s figure of merit is proportional to the square of the product of magnetic field and length, multiplied by the cross-sectional area filled with the magnetic field.IAXO: the International Axion Observatory -Pg 9 Sept 2014(PDF)
The sun emitted a significant solar flare, peaking at 7:24 p.m. EST on Dec. 19, 2014. NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.
To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at http://spaceweather.gov, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.
This flare is classified as an X1.8-class flare. X-class denotes the most intense flares, while the number provides more information about its strength. An X2 is twice as intense as an X1, an X3 is three times as intense, etc.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11721
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| Buckminsterfullerene-perspective-3D-balls |
Aperiodic tilings serve as mathematical models for quasicrystals, physical solids that were discovered in 1982 by Dan Shechtman[3] who subsequently won the Nobel prize in 2011.[4] However, the specific local structure of these materials is still poorly understood .Aperiodic tilings -
240 E₈ polytope vertices using 5D orthographic_projection to 2D using 5-cube (Penteract) Petrie_polygon basis_vectors overlaid on electron diffraction pattern of an Icosahedron Zn-Mg-Ho Quasicrystal. E8_(mathematics) and QuasicrystalsAt the same time one might understand the complexity of the issue?
By now it is known theoretically that quantum angular momentum of any kind has a discrete spectrum, which is sometimes imprecisely expressed as "angular momentum is quantized".Stern–Gerlach experiment -
Photonic molecules are a synthetic form of matter in which photons bind together to form "molecules". According to Mikhail Lukin, individual (massless) photons "interact with each other so strongly that they act as though they have mass". The effect is analogous to refraction. The light enters another medium, transferring part of its energy to the medium. Inside the medium, it exists as coupled light and matter, but it exits as light.[1]
Ephemeralization, a term coined by R. Buckminster Fuller, is the ability of technological advancement to do "more and more with less and less until eventually you can do everything with nothing".[1] Fuller's vision was that ephemeralization will result in ever-increasing standards of living for an ever-growing population despite finite resources.
ARTEMIS-P1 is the first spacecraft to navigate to and perform stationkeeping operations around the Earth-Moon L1 and L2 Lagrangian points. There are five Lagrangian points associated with the Earth-Moon system. ARTEMIS - The First Earth-Moon Libration Orbiter -
An international team of researchers has proved that two peculiar features of the quantum world – previously considered distinct – are different manifestations of the same thing. The result is published 19 December in Nature Communications.
Patrick Coles, Jedrzej Kaniewski, and Stephanie Wehner made the breakthrough while at the Centre for Quantum Technologies at the National University of Singapore. They found that 'wave-particle duality' is simply the quantum 'uncertainty principle' in disguise, reducing two mysteries to one.
"The connection between uncertainty and wave-particle duality comes out very naturally when you consider them as questions about what information you can gain about a system. Our result highlights the power of thinking about physics from the perspective of information," says Wehner, who is now an Associate Professor at QuTech at the Delft University of Technology in the Netherlands.
The discovery deepens our understanding of quantum physics and could prompt ideas for new applications of wave-particle duality................... SEE : CQT (Centre for Quantum Technologies)-Two quantum mysteries merged into one
Under normal conditions, quarks and gluons are confined in the protons and neutrons that make up everyday matter. But at high energy densities—the range accessible at today’s particle accelerators—quarks and gluons form a plasma reminiscent of the primordial Universe after the big bang. Understanding how the transition (Fig. 1) from the confined state to this quark-gluon plasma (and vice versa) occurs is a fundamental goal of experiments at the Relativistic Heavy Ion Collider and the Large Hadron Collider, which recreate the plasma by colliding nuclei at ultrarelativistic speeds. Theorists are therefore looking for new ways to study the transition with quantum chromodynamics (QCD), the mathematically challenging theory that describes the strong interaction between quarks. In Physical Review Letters, researchers in the HotQCD Collaboration report an analysis of this phase transition using a formulation of QCD that lends itself to numerical solutions on a computer, called lattice QCD [1]. Their simulations of deconfinement—the first to be performed with a version of lattice QCD that accurately describes the masses and, in particular, the symmetries of the quarks—yield the critical temperature for the transition to occur, and show that it is a smooth crossover, rather than an abrupt change.Viewpoint: Testing a Realistic Quark-Gluon Plasma Bold and underlined added by me for emphasis
Record-breaking science applications have been run on the BG/Q, the first to cross 10 petaflops of sustained performance. The cosmology simulation framework HACC achieved almost 14 petaflops with a 3.6 trillion particle benchmark run,[51] while the Cardioid code,[52][53] which models the electrophysiology of the human heart, achieved nearly 12 petaflops with a near real-time simulation, both on Sequoia.Blue Gene
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By using Einstein's equations to predict the pattern of gravity waves emitted during the collision of two black holes, or generated in a variety of other cataclysmic events, and comparing the predictions with the observations, an alliance of computational scientists from nine institutions plans to test this as yet unconfirmed prediction of Einstein's famous theory. These scientists belong to a research discipline called Numerical Relativity.
Numerical Relativity Code and Machine Timeline -
As Richard Feynman put it:[13]
"It always bothers me that, according to the laws as we understand them today, it takes a computing machine an infinite number of logical operations to figure out what goes on in no matter how tiny a region of space, and no matter how tiny a region of time. How can all that be going on in that tiny space? Why should it take an infinite amount of logic to figure out what one tiny piece of space/time is going to do? So I have often made the hypotheses that ultimately physics will not require a mathematical statement, that in the end the machinery will be revealed, and the laws will turn out to be simple, like the chequer board with all its apparent complexities".
Numerical simulations
Numerical simulations have different objectives depending on the nature of the task being simulated:
Reconstruct and understand known events (e.g., earthquake, tsunamis and other natural disasters).
Predict future or unobserved situations (e.g., weather, sub-atomic particle behaviour).
Computational science -
An equilibrium point is hyperbolic if none of the eigenvalues have zero real part. If all eigenvalues have negative real part, the equilibrium is a stable equation. If at least one has a positive real part, the equilibrium is an unstable node. If at least one eigenvalue has negative real part and at least one has positive real part, the equilibrium is a saddle point. Equilibrium point -
That a straight line has to somehow be explained as not bending either one way or another and without losing information(even if information is scrambled)? Hopefully, you can help me here?
Perfect fluids are often used in general relativity to model idealized distributions of matter, such as in the interior of a star. Perfect fluid -
The European Space Agency (ESA) has recently begun choosing candidates for the next large mission launch slots. The first step was the submission of white papers advocating science themes. Out of many candidates, ESA now selected two.
"We had a difficult task in deciding which scientific themes to choose from all of the excellent candidates, but we believe that missions to study the hot, energetic Universe and gravitational waves will result in discoveries of the greatest importance to cosmology, astrophysics, and physics in general," says Catherine Cesarsky, chair of the Senior Survey Committee of the European Space Agency.
The two selected since themes are:
The Hot and Energetic Universe, addressed by the Athena mission
http://www.the-athena-x-ray-observato...
and
The Gravitational Universe, addressed by the eLISA mission
https://www.elisascience.org/
Gravitational wave observations will enable studies of: the formation and growth of massive black holes and their co-evolving host galaxies; structure formation; stellar populations and dynamics in galactic nuclei; compact stars; the structure of our Galaxy; General Relativity in extreme conditions; cosmology; and searches for new physics. Information from LISA sources will provide unique insight into extraordinary astrophysical objects. Combined with electromagnetic observations, these insights will advance the broader scientific understanding. LISA Project Office
"Gravitation is not responsible for people falling in love. Albert Einstein"Of course I look a Einstein's statement here and I am perplexed as one might distance them self from the subject of gravity to see that such a comparison as I list below can run contradictory to Einstein's rule? But when considering the context of "emotive valence" as a subject worthy of the innovative materialist design products, I consider the physiological application that emotive valence might have in understanding our world today.
Quantum chemistry is a branch of chemistry whose primary focus is the application of quantum mechanics in physical models and experiments of chemical systems. It is also called molecular quantum mechanics.When one moves through the subject of quantum biology one is lead toward the chemistry of life so as to see this trend toward understanding the conversion process that can take place as to the quantum effects as seen in quantum biology.
The science and history of the minimal length has now been covered in a recent book by Amit Hagar:
Discrete or Continuous? The Quest for Fundamental Length in Modern Physics
Amit Hagar
Cambridge University Press (2014)
Several questions about consciousness must be resolved in order to acquire a full understanding of it. These questions include, but are not limited to, whether being conscious could be wholly described in physical terms, such as the aggregation of neural processes in the brain. If consciousness cannot be explained exclusively by physical events, it must transcend the capabilities of physical systems and require an explanation of nonphysical means. For philosophers who assert that consciousness is nonphysical in nature, there remains a question about what outside of physical theory is required to explain consciousness. See: The Hard Problem of Consciousness
Gravimetry is the measurement of the strength of a gravitational field.
(The CIE 1931 colour space chromaticity diagram with wavelengths in nanometers. The colours depicted depend on the colour space of the device on which the image is viewed.) International Commission on Illumination
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| A contour plot of the effective potential due to gravity and the centrifugal force of a two-body system in a rotating frame of reference. The arrows indicate the gradients of the potential around the five Lagrange points—downhill toward them (red) or away from them (blue). Counterintuitively, the L4 and L5 points are the high points of the potential. At the points themselves these forces are balanced. |
We know that colour is a psychophysical experience of an observer which changes from observer to observer and is therefore impossible to replicate absolutely. In order to quantify colour in meaningful terms we must be able to measure or represent the three attributes that together give a model of colour perception. i.e. light, object and the eye. All these attributes have been standardised by the CIE or Commission Internationale de l'Eclairage. The colours of the clothes we wear and the textiles we use in our homes must be monitored to ensure that they are correct and consistent. Colour measurement is therefore essential to put numbers to colour in order to remove physical samples and the interpretation of results.See: Colour measuring equipment