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Keyword: stringtheory

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  • NASA Says Indian Scientist's Theory Is Correct, Black Holes Don't Really Exist

    11/29/2015 4:24:52 PM PST · by Jyotishi · 49 replies
    India Times ^ | November 27, 2015 | Bobins Abraham
    American space agency, the NASA had recently observed flares of X-rays from a black hole, which goes against the conventional notion that they are compact particles with such huge gravity that even light can't escape. Last month NASA announced that two of its space telescopes caught a huge burst of X-ray spewing out of a super massive black hole. These flairs appeared to be be triggered by the eruption of a charged particle from the black hole, which according to conventional belief doesn't let anything out. The latest findings are in accordance with the theory of Indian astrophysicist Abhas Mitra...
  • 'Material universe' yields surprising new particle

    11/25/2015 12:22:07 PM PST · by Red Badger · 14 replies
    phys.org ^ | November 25, 2015 | Provided by: Princeton University
    These tungsten ditelluride crystals behave as insulators for current applied in some directions and as conductors for current applied in other directions. The researchers found that this behavior is due to a newly theorized particle, the type-II Weyl fermion. Credit: Wudi Wang and N. Phuan Ong, Princeton University --------------------------------------------------------------------------------------------------------------------------------------- An international team of researchers has predicted the existence of a new type of particle called the type-II Weyl fermion in metallic materials. When subjected to a magnetic field, the materials containing the particle act as insulators for current applied in some directions and as conductors for current applied in other...
  • Is Earth Growing a Hairy Dark Matter 'Beard'?

    11/23/2015 4:24:17 PM PST · by BenLurkin · 37 replies
    discovery.com ^ | Nov 23, 2015 03:48 PM ET // by | Ian O'Neill
    Gary Prezeau of NASA’s Jet Propulsion Laboratory in Pasadena, Calif., describes the results of his theoretical model that goes some way to explain how streams of dark matter particles may interact with our planet's gravitational field. "A (dark matter) stream can be much larger than the solar system itself, and there are many different streams crisscrossing our galactic neighborhood," said Prézeau in a JPL press release. "When gravity interacts with the cold dark matter gas during galaxy formation, all particles within a stream continue traveling at the same velocity." As these streams begin to interact with a planet, according to...
  • The Most Mind-Bending Fact I Learned in Physics

    11/19/2015 10:56:52 PM PST · by LibWhacker · 64 replies
    Real Clear Science ^ | 11/2015 | Tom Hartsfield
    Physics is built out of philosophically fascinating ideas. Or, at least, ideas that fascinate us as physicists. We are often moved to reverentially proclaim the beauty of various concepts and theories. Sometimes this beauty makes sense to other people (we're made of star stuff) and other times it's opaque (Frobenius manifolds in psuedo-Euclidean spaces). I have my own personal favorite idea. It arises from the philosophically fantastic (but mathematically moderate) workings of Einstein's relativity theory. The theory of special relativity holds that time and space are not separate entities, each operating on its own; rather they are intimately and inextricably...
  • Researchers have written quantum code on a silicon chip for the first time

    11/17/2015 6:53:19 PM PST · by LibWhacker · 28 replies
    Science alert ^ | 11/17/15 | FIONA MACDONALD
    Researchers have written quantum code on a silicon chip for the first time And so it begins... FIONA MACDONALD 17 NOV 2015 For the first time, Australian engineers have demonstratedthat they can write and manipulate the quantum version of computer code on a silicon microchip. This was done by entangling two quantum bits with the highest accuracy ever recorded, and it means that we can now start to program for the super-powerful quantum computers of the future.Engineers code regular computers using traditional bits, which can be in one of two states: 1 or 0. Together, two bits...
  • Image: A supermassive black hole in action

    11/17/2015 10:55:45 AM PST · by Red Badger · 48 replies
    phys.org ^ | November 17, 2015 | Provided by: European Space Agency
    Credit: NASA, ESA, S. Baum & C. O’Dea (RIT), R. Perley & W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA) =============================================================================================================== Scientists often use the combined power of multiple telescopes to reveal the secrets of the Universe – and this image is a prime example of when this technique is strikingly effective. The yellow-hued object at the centre of the frame is an elliptical galaxy known as Hercules A, seen by the Earth-orbiting NASA/ESA Hubble Space Telescope. In normal light, an observer would only see this object floating in the inky blackness of space. However, view Hercules A with...
  • Lasers could rapidly make materials hotter than the Sun

    11/16/2015 12:54:59 AM PST · by LibWhacker · 11 replies
    Lasers could heat materials to temperatures hotter than the centre of the Sun in only 20 quadrillionths of a second, according to new research. Theoretical physicists from Imperial College London have devised an extremely rapid heating mechanism that they believe could heat certain materials to ten million degrees in much less than a million millionth of a second. The method, proposed here for the first time, could be relevant to new avenues of research in thermonuclear fusion energy, where scientists are seeking to replicate the Sun’s ability to produce clean energy. The heating would be about 100 times faster than...
  • Astronomers Found the Ghost of a Rare Giant Radio Galaxy

    11/09/2015 6:14:29 AM PST · by Red Badger · 33 replies
    gizmodo.com ^ | 11/08/15 4:05pm | Kiona Smith-Strickland
    Image: J021659-044920. The red and yellow lobes are the galaxy’s radio lobes. The red spot in the center is the visible galaxy. Prathamesh Tamhane/Yogesh Wadadekar. ================================================================================================================== Astronomers in India have discovered a very unusual galaxy, and it’s dying. By now, in fact, it’s probably already dead. The new galaxy, known as J021659-044920, is 9 billion light years away from Earth. That means it’s really old in cosmic terms (but not quite as old as the oldest object astronomers have ever found, a galaxy 13 billion light years away called UDFy-38135539). Viewed in the visible spectrum, J021659-044920spans about 100,000 light years...
  • Black hole awakens after 26 years

    11/05/2015 2:13:20 PM PST · by Red Badger · 16 replies
    phys.org ^ | November 5, 2015 | Provided by: Oxford University
    On 15 June 2015, V404 Cygni (V404 Cyg), a binary system comprising a sun-like star orbiting a black hole, woke up. A huge outburst of energy across the electromagnetic spectrum 'lit up' the sky. The last such outburst was 1989. Dr Kunal Mooley, a Hintze Research Fellow at the University's Centre for Astrophysical Surveys works on cutting-edge research based on the discovery and detailed study of transients at radio and optical wavelengths using a wide range of telescope facilities such as the Jansky Very Large Array, the Arcminute Microkelvin Imager (AMI), the Palomar Transient Factory, and the Giant Meterwave Radio...
  • The Feynman Lectures on Physics

    11/04/2015 1:37:49 AM PST · by HKMk23 · 35 replies
    California Institute of Technology ^ | Michael A. Gottlieb, and Rudolf Pfeiffer
    Caltech and The Feynman Lectures Website are pleased to present this online edition of The Feynman Lectures on Physics. Now, anyone with internet access and a web browser can enjoy reading a high quality up-to-date copy of Feynman's legendary lectures.
  • Nuclear fusion just got a boost with the arrival of this stellarator

    11/03/2015 9:31:14 AM PST · by Borges · 33 replies
    Fox News ^ | 11/2/2015 | Michael Casey
    Researchers could be one step closer to producing energy through nuclear fusion with word that a device called the stellarator is set to go online later this year in Germany. The largest contraption its kind, the Wendelstein 7-X fusion device is housed in a branch of the Max Planck Institute for Plasma Physics (IPP) near Munich. It won’t actually produce energy, the Institute said, but will be used to test the “specially shaped magnet coils which produce a magnetic cage which confines the plasma and keeps it away from the walls of the plasma vessel.”
  • The speed of light is... slooooooow

    11/02/2015 11:04:54 PM PST · by LibWhacker · 80 replies
  • Astronomy Picture of the Day -- Massive Black Hole Shreds Passing Star

    10/28/2015 5:14:52 PM PDT · by SunkenCiv · 16 replies
    NASA ^ | October 28, 2015 | (see photo credit)
    Explanation: What happens when a star gets too close to a black hole? Recent observations from Earth-orbiting observatories of an event dubbed ASASSN-14li, in a distant galactic center, appears to be giving one star's harrowing story. Although angularly unresolved, variations in high energy light indicate that some of the star became shredded and reformed into a disk swirling around the dark abyss. In the hypothesized scenario envisioned, a jet formed on the spin axis of the black hole. The innermost part of the disk, colored white, glows most strongly in X-rays and may drive a periodic wind, shown in blue....
  • Infinitely fast light with new zero-index material

    10/20/2015 3:31:03 PM PDT · by LibWhacker · 15 replies
    SCImplified ^ | 10/20/15 | M. Lane
    Photonic devices, which use light to transport large amounts of information quickly, have the potential to enhance or even replace the electronic devices that are ubiquitous in our lives today. But before such optical connections can be integrated into telecommunication systems and computers, researchers need to make it easier to manipulate light at the nanoscale. A new on-chip zero-index metamaterial makes this possible, opening the door for technological innovation and research. This new metamaterial was developed in the lab of Eric Mazur at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), and is described in the...
  • Astronomy Picture of the Day -- When Black Holes Collide

    10/20/2015 4:32:59 AM PDT · by SunkenCiv · 22 replies
    NASA ^ | October 20, 2015 | (see photo credit)
    Explanation: What happens when two black holes collide? This extreme scenario likely occurs in the centers of some merging galaxies and multiple star systems. The featured video shows a computer animation of the final stages of such a merger, while highlighting the gravitational lensing effects that would appear on a background starfield. The black regions indicate the event horizons of the dynamic duo, while a surrounding ring of shifting background stars indicates the position of their combined Einstein ring. All background stars not only have images visible outside of this Einstein ring, but also have one or more companion images...
  • The Universe Never Expands Faster Than the Speed of Light

    10/13/2015 11:04:06 PM PDT · by LibWhacker · 49 replies
    Preposterous Universe ^ | 10/13/15 | Sean Carroll
    The Universe Never Expands Faster Than the Speed of Light Breaking my radio silence here to get a little nitpick off my chest: the claim that during inflation, the universe expanded faster than the speed of light. Its extraordinarily common, if utterly and hopelessly incorrect. (I just noticed it in this otherwise generally excellent post by Fraser Cain.) A Google search for inflation superluminal expansion reveals over 100,000 hits, although happily a few of the first ones are brave attempts to squelch the misconception. I can recommend this nice article by Tamara Davis and Charlie Lineweaver, which tries to address...
  • Long-Sought Exotic Particle of Pure Force Detected --"Key Prediction of the Standard Model"

    10/14/2015 12:44:29 PM PDT · by SunkenCiv · 18 replies
    The Daily Galaxy ^ | October 13, 2015 | unattributed
    Scientists at TU Wien (Vienna) have calculated that the meson f0(1710) could be a very special particle -- the long-sought-after glueball, a particle composed of pure force. The prediction that glueballs exist is one of the most important of the Standard Model of particle physics that has not yet been confirmed experimentally. For decades, scientists have been looking for so-called "glueballs". Now it seems they have been found at last. A glueball is an exotic particle, made up entirely of gluons -- the "sticky" particles that keep nuclear particles together. Glueballs are unstable and can only be detected indirectly, by...
  • For 1st time, MIT's free online classes can lead to degree

    10/12/2015 2:34:28 PM PDT · by 2ndDivisionVet · 32 replies
    The San Francisco Chronicle ^ | October 7, 2015 | Collin Binkley, The Associated Press
    CAMBRIDGE, Mass. (AP) The Massachusetts Institute of Technology has offered free online courses for the last four years with one major downside: They didn't count toward a degree. That's about to change. In a pilot project announced Wednesday, students will be able to take a semester of free online courses in one of MIT's graduate programs and then, if they pay a "modest fee" of about $1,500 and pass an exam, they will earn a MicroMaster's credential, the school said. The new credential represents half of the university's one-year master's degree program in supply chain management....
  • What are white holes?

    10/12/2015 8:35:22 AM PDT · by Red Badger · 40 replies
    phys.org ^ | October 9, 2015 | by Fraser Cain, Universe Today
    White Hole. Credit: universe-review.ca =================================================================================================================== Black holes are created when stars die catastrophically in a supernova. So what in the universe is a white hole? It's imagination day, and we're going to talk about fantasy creatures. Like unicorns, but even rarer. Like leprechauns, but even more fantastical! Today, we're going to talk about white holes. Before we talk about white holes, let's talk about black holes. And before we talk about Black Holes, what's is this thing you have with holes exactly? Black holes are places in the universe where matter and energy are compacted so densely together that their...
  • Core Concept: Atom interferometry (May help scientists figure out what dark matter is, etc.)

    10/08/2015 6:26:20 PM PDT · by LibWhacker · 6 replies
    PNAS ^ | Oct 2015 | Maggie McKee
    Sometimes you have to think outside the box. Faced with some of the universes most stubborn mysteries, such as the identity of dark matter, physicists are turning to a technique that employs the weird laws of quantum mechanics: atom interferometry. Atom interferometers allow the study of various physical phenomena by splitting atom waves using a nanograting, such as this one. Composed of silicon nitride, this grating, imaged with a scanning electron microscope, has a period of 100 nm. Image courtesy of Alex Cronin (University of Arizona, Tucson, AZ). This method, which takes advantage of the fact that quantum particles behave...
  • Kajita becomes Nobel physics prize co-winner

    10/06/2015 5:20:48 AM PDT · by chajin · 9 replies
    NHK (Japan Broadcasting Company) ^ | October 6, 2015 | NHK
    A Japanese scientist has won this year's Nobel Prize in Physics. Takaaki Kajita proved that neutrinos have mass. The neutrino is an elementary particle consisting of matter. Kajita observed neutrinos at a facility deep underground. He was part of a team that detected that some of the particles change to different types of neutrino. That proved neutrinos have mass. The discoveries were revealed at an international conference in 1998. His work surprised researchers all around the world because it disproved the established theory that neutrinos do not have mass. Kajita is the 24th Nobel Prize winner born in Japan. And...
  • Goodbye Big Bang, Hello Black Hole? A New Theory Of The Universes Creation

    09/30/2015 7:10:11 PM PDT · by lbryce · 40 replies
    Universe Today ^ | September 18, 2015 | ELIZABETH HOWELL on SEPTEMBER 18, 2013
    Could the famed Big Bang theory need a revision? A group of theoretical physicists suppose the birth of the universe could have happened after a four-dimensional star collapsed into a black hole and ejected debris. Before getting into their findings, lets just preface this by saying nobody knows anything for sure. Humans obviously werent around at the time the universe began. The standard theory is that the universe grew from an infinitely dense point or singularity, but who knows what was there before? For all physicists know, dragons could have come flying out of the singularity, stated Niayesh Afshordi, an...
  • Scientists think they know how to test the parallel universes theory - for real

    09/30/2015 9:03:31 AM PDT · by SeekAndFind · 60 replies
    Science Alert ^ | 09/30/2015 | EUGENE LIM, Published by The Conversation.
    The existence of parallel universes may seem like something cooked up by science fiction writers, with little relevance to modern theoretical physics. But the idea that we live in a 'multiverse' made up of an infinite number of parallel universes has long been considered a scientific possibility - although it is still a matter of vigorous debate among physicists. The race is now on to find a way to test the theory, including searching the sky for signs of collisions with other universes. It is important to keep in mind that the multiverse view is not actually a theory, it...
  • Light dawns

    09/20/2015 1:35:08 PM PDT · by SunkenCiv · 22 replies
    Aeon ^ | September 18, 2015 | Sidney Perkowitz
    If you visit the Paris Observatory on the left bank of the Seine, you'll see a plaque on its wall announcing that the speed of light was first measured there in 1676. The odd thing is, this result came about unintentionally. Ole Romer, a Dane who was working as an assistant to the Italian astronomer Giovanni Domenico Cassini, was trying to account for certain discrepancies in eclipses of one of the moons of Jupiter. Romer and Cassini discussed the possibility that light has a finite speed (it had typically been thought to move instantaneously). Eventually, following some rough calculations, Romer...
  • The theory of parallel universes is not just maths it is science that can be tested

    09/11/2015 11:12:05 AM PDT · by SeekAndFind · 92 replies
    The Conversation ^ | 09/02/2015
    The existence of parallel universes may seem like something cooked up by science fiction writers, with little relevance to modern theoretical physics. But the idea that we live in a multiverse made up of an infinite number of parallel universes has long been considered a scientific possibility although it is still a matter of vigorous debate among physicists. The race is now on to find a way to test the theory, including searching the sky for signs of collisions with other universes. It is important to keep in mind that the multiverse view is not actually a theory,...
  • Are We Living In A Black Hole?

    09/05/2015 2:41:01 PM PDT · by LibWhacker · 39 replies
    One Universe at a Time ^ | 9/4/15 | Brian Koberlein
    Are We Living In A Black Hole? // / Heres an idea, what if the universe and everything we see around us is actually inside a black hole?Whenever Im asked this question, what folks typically have in mind is that the universe began as an infinitely dense point, just like the singularity of a black hole, and because of cosmic expansion theres a limit to how far we can observe, so maybe thats like the event horizon. While its an interesting idea, things arent quite so simple.To begin with, the universe did not begin with an explosion from a...
  • Meltdown-Proof Nuclear Reactors Get a Safety Check in Europe

    09/05/2015 11:07:08 AM PDT · by SeekAndFind · 12 replies
    MIT Technology Review ^ | 09/05/2015 | By Richard Martin
    For years nuclear scientists have talked about a revival of molten salt reactors, which are powered by a liquid fuel rather than solid fuel rods, that will help spark the long-awaited nuclear renaissance. Recent developments indicate that this alternative nuclear power technology is finally making progress toward commercialization. A consortium of research institutes and universities working under the aegis of the European Commission, including the Technology University of Delft (TU Delft), in the Netherlands, Frances National Center for Scientific Research, and the Commissions Joint Research Center, in Brussels, in August embarked on a four-year research program designed to demonstrate the...
  • Particle Collider Spits Out Tiny Drops of Primordial Goo

    09/03/2015 6:10:19 PM PDT · by BenLurkin · 32 replies
    Discovery ^ | Ian O'Neill
    The matter, known as a quark-gluon plasma (or QGP), is predicted to exist when temperatures and densities are so extreme that regular matter cannot exist. Instead, a perfect liquid exists for a short time before it cools and condenses into the regular stuff that forms the building blocks of matter. Although physicists have announced the detection of this exotic state of matter before, new results from the Relativistic Heavy Ion Collider (RHIC) at the U.S. Department of Energys (DOE) Brookhaven National Laboratory, in Upton, New York, appear to show the tiniest droplets of quark-gluon plasma appear, in a specific pattern,...
  • ATLAS and CMS experiments shed light on Higgs properties (CERN)

    09/01/2015 10:59:51 PM PDT · by Sir Gawain · 12 replies
    ATLAS and CMS experiments shed light on Higgs properties 01 Sep 2015 Results of the analyses by individual experiments (coloured) and both experiments together (black), showing the improvement in precision resulting from the combination of results. Geneva/Saint Petersburg, 1st September 2015. Three years after the announcement of the discovery of a new particle, the so-called Higgs boson, the ATLAS and CMS Collaborations present for the first time combined measurements of many of its properties, at the third annual Large Hadron Collider Physics Conference (LHCP 2015). By combining their analyses of the data collected in 2011 and 2012, ATLAS and CMS...
  • Quantum computer that 'computes without running' sets efficiency record

    09/01/2015 10:33:43 PM PDT · by LibWhacker · 29 replies
    PhysOrg ^ | 8/31/15 | Lisa Zyga
    (Phys.org)Due to quantum effects, it's possible to build a quantum computer that computes without runningor as the scientists explain, "the result of a computation may be learned without actually running the computer." So far, however, the efficiency of this process, which is called counterfactual computation (CFC), has had an upper limit of 50%, limiting its practical applications. Now in a new paper, scientists have experimentally demonstrated a slightly different version called a "generalized CFC" that has an efficiency of 85% with the potential to reach 100%. This improvement opens the doors to realizing a much greater variety of applications, such...
  • Scientists Confirm the Existence of Cosmic Neutrinos

    08/22/2015 5:57:13 PM PDT · by 2ndDivisionVet · 13 replies
    Gizmodo ^ | August 20, 2015 | Maddie Stone and The Guardian
    A team of Antarctic scientists has just verified the existence of cosmic neutrinos tiny, energetic particles that might hail from far reaches of the Milky Way and beyond. And these ghostly little flecks of matter could hold the key to some of the deepest mysteries of the cosmos. High-energy cosmic neutrinos are thought to be produced by some of the universes most violent agents, including black holes, supernovae, and the energetic cores of galaxies. Unchanged as they zip across space and time, these particles may represent something of an intergalactic breadcrumb trail, pointing us in the direction of any...
  • Magnetic Wormhole Created in Lab

    08/22/2015 12:14:30 AM PDT · by 2ndDivisionVet · 27 replies
    Scientific American ^ | August 21, 2015 | Tia Ghose and LiveScience
    Device acts like a wormhole, as if the magnetic field was transferred through an extra special dimensionRipped from the pages of a sci-fi novel, physicists have crafted a wormhole that tunnels a magnetic field through space. "This device can transmit the magnetic field from one point in space to another point, through a path that is magnetically invisible," said study co-author Jordi Prat-Camps, a doctoral candidate in physics at the Autonomous University of Barcelona in Spain. "From a magnetic point of view, this device acts like a wormhole, as if the magnetic field was transferred through an extra special dimension."...
  • The Case for Complex Dark Matter

    08/20/2015 7:50:41 PM PDT · by LibWhacker · 30 replies
    Quanta Magazine ^ | 8/20/15 | Liz Kruesi
    The Case for Complex Dark Matter The physicist James Bullock explains how a complicated dark sector of interacting particles may illuminate some puzzling observations of the centers of galaxies. Jonathan Alcorn for Quanta MagazineJames Bullock, a physicist at the University of California, Irvine, imagines what the universe would look like if dark matter interacted with itself. By: Liz KruesiAugust 20, 2015 Dark matter the unseen 80 percent of the universes mass doesnt emit, absorb or reflect light. Astronomers know it exists only because it interacts with our slice of the ordinary universethrough gravity. Hence the hunt for this...
  • Gnostic Physicists: The World is a Computer Simulation in Minds of Robotic Overlords

    08/19/2015 11:05:23 AM PDT · by spirited irish · 49 replies
    Renew America ^ | August 18, 2015 | Linda Kimball
    Is the world we live in a computer simulation in the minds of Robotic Overlords who are using humanity as playthings? This is the "scientific" theory put forward by a number of physicists and Oxford University philosopher Nick Bostrom.(1) Bostrom is one of the founders of the World Transhumanist Association. Transhumanism is a blend of revitalized Gnostic pagan and Eastern occult pantheist elements and magic science undergirded by a strong Darwinian impulse. Thus it subscribes to the modern myth of a coming Superman that is actually a counterfeit of the Christian vision of a new and perfected human race spiritually...
  • Mystery Deepens: Matter and Antimatter Are Mirror Images

    08/14/2015 9:14:59 AM PDT · by BenLurkin · 37 replies
    Live Science ^ | Charles Q. Choi
    Matter and antimatter appear to be perfect mirror images of each other as far as anyone can see, scientists have discovered with unprecedented precision, foiling hope of solving the mystery as to why there is far more matter than antimatter in the universe. Everyday matter is made up of protons, neutrons or electrons. These particles have counterparts known as antiparticles antiprotons, antineutrons and positrons, respectively that have the same mass but the opposite electric charge. (Although neutrons and antineutrons are both neutrally charged, they are each made of particles known as quarks that possess fractional electrical charges, and...
  • Study Shows That Universe Is Dying [We Are All Doomed]

    08/11/2015 2:00:06 PM PDT · by Purdue77 · 69 replies
    LA Times ^ | 8/10/2015 | Amina Khan
    The Los Angeles Times (8/10, Khan) reports that an international study led by Simon Driver of the University of Western Australia and presented at the International Astronomical Union meeting on Monday found that the amount of light the 200,000 galaxies are outputting is half of what they did two billion years ago, meaning the universe is dying. The article notes that seven telescopes were used in the study, including NASAs Wide-field Infrared Survey Explorer spacecraft. Driver said that the conclusion is consistent with each of the three indicators measured. However, the universe should continue to exist far into the foreseeable...
  • New design could finally help to bring fusion power closer to reality

    08/10/2015 1:53:25 PM PDT · by Red Badger · 17 replies
    phys.org ^ | August 10, 2015 | by David L. Chandler & Provided by: Massachusetts Institute of Technology
    A cutaway view of the proposed ARC reactor. Thanks to powerful new magnet technology, the much smaller, less-expensive ARC reactor would deliver the same power output as a much larger reactor. Credit: the MIT ARC team ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- It's an old joke that many fusion scientists have grown tired of hearing: Practical nuclear fusion power plants are just 30 years away—and always will be. But now, finally, the joke may no longer be true: Advances in magnet technology have enabled researchers at MIT to propose a new design for a practical compact tokamak fusion reactor—and it's one that might be realized...
  • Fermilab is 'ecstatic' over first NOvA neutrino results

    08/07/2015 11:20:05 AM PDT · by BenLurkin · 9 replies
    wm.edu ^ | August 7, 2015 | Joseph McClain |
    Neutrinos are unimaginably numerous, but their infrequent interaction with matter make the particles a challenge to study. Neutrinos exist in three flavors: muon, electron and tau. The NOvA experiment aims to investigate one of the peculiar properties of neutrinos their tendency to change flavors, or oscillate. NOvA is what the physicists call a long-baseline experiment, as the neutrinos travel more than 500 miles underground. We make a beam of muon-type neutrinos at Fermilab, and then we detect those at Ash River, Minnesota, Vahle explained. We are looking for muon-type neutrinos to change into electron-type neutrinos. We also look for...
  • Is our universe FAKE? Physicists claim we could all be the playthings of an advanced civilisation

    08/04/2015 6:57:14 PM PDT · by dennisw · 116 replies
    dailymail ^ | 4 August 2015 | Ellie Zolfagharifard
    Physicists say there is a possibility that our world is merely a simulation They claim there may be evidence of this if only we know where to look For instance, some of the laws of physics may not quite add up, they say The year is 2050 and super-intelligent robots have taken over the planet. Except you have no idea, because you're living in a computer simulation, depicting what life was like in 2015. Everything you see and touch right now has been created by robotic overlords who are using humanity as playthings in their virtual game. That's the radical...
  • The First White Laser

    07/29/2015 3:54:30 PM PDT · by Talisker · 49 replies
    IEEE Spectrum ^ | 27 Jul 2015 | Charles Q. Choi
    Scientists and engineers at Arizona State University, in Tempe, have created the first lasers that can shine light over the full spectrum of visible colors. The devices inventors suggest the laser could find use in video displays, solid-state lighting, and a laser-based version of Wi-Fi. Although previous research has created red, blue, green and other lasers, each of these lasers usually only emitted one color of light. Creating a monolithic structure capable of emitting red, green, and blue all at once has proven difficult because it requires combining very different semiconductors. Growing such mismatched crystals right next to each other...
  • Scientists Confirm 'Impossible' EM Drive Propulsion

    07/27/2015 4:32:51 PM PDT · by 2ndDivisionVet · 53 replies
    Hacked Magazine ^ | July 27, 2015 | Giulio Prisco
    Later today, July 27, German scientists will present new experimental results on the controversial, "impossible" EM Drive, at the American Institute for Aeronautics and Astronautics' Propulsion and Energy Forum in Orlando. The presentation is titled "Direct Thrust Measurements of an EmDrive and Evaluation of Possible Side-Effects." Presenter Martin Tajmar is a professor and chair for Space Systems at the Dresden University of Technology, interested in space propulsion systems and breakthrough propulsion physics. A Revolutionary Development for Space Travel The EM Drive (Electro Magnetic Drive) uses electromagnetic microwave cavities to directly convert electrical energy to thrust without the need to expel...
  • Scientists have discovered a new state of matter, called 'Jahn-Teller metals'

    07/25/2015 6:00:39 PM PDT · by 2ndDivisionVet · 26 replies
    Science Alert ^ | May 12, 2015 | Bec Crew
    And it could be the key to understanding one of the biggest mysteries in physics today - high-temperature superconductors.An international team of scientists has announced the discovery of a new state of matter in a material that appears to be an insulator, superconductor, metal and magnet all rolled into one, saying that it could lead to the development of more effective high-temperature superconductors. Why is this so exciting? Well, if these properties are confirmed, this new state of matter will allow scientists to better understand why some materials have the potential to achieve superconductivity at a relativity high critical temperature...
  • The 2011 Cold Fusion/Lattice-Assisted Nuclear Reactions Colloquium at MIT Part 2

    09/27/2011 11:42:18 PM PDT · by Kevmo · 11 replies
    The 2011 Cold Fusion/Lattice-Assisted Nuclear Reactions Colloquium at the Massachusetts Institute of Technology — Part 2 (Report prepared by staff of JET Energy, Inc.) INFINITE ENERGY • ISSUE 99 • SEPTEMBER/OCTOBER 2011 The 2011 Lattice-Assisted Nuclear Reactions/Cold Fusion Colloquium at the Massachusetts Institute of Technology (Cambridge, Massachusetts) was held on Saturday, June 11 and Sunday, June 12, 2011. The meeting focused on the science and technology of cold fusion (CF) and lattice-assisted nuclear reactions (LANR). In 1989, the initial failures of cold fusion resulted from bad experiments, bad paradigm, materials issues, poor loadings and a poor appreciation of the...
  • MIT and Cold Fusion: A Special Report

    09/10/2011 8:55:10 AM PDT · by Kevmo · 25 replies
    Infinite Energy Magazine, Issue 24 ^ | 2003 | Eugene F. Mallove, Sc.D.
    MIT and Cold Fusion: A Special Report Compiled and written by Eugene F. Mallove, Sc.D. MIT Class of 1969, S.B. Aero/Astro Eng., 1970 S.M. Aero/Astro Eng. Editor-in-Chief, Infinite Energy Magazine President, New Energy Foundation, Inc. Introduction When on March 23, 1989 Drs. Martin Fleischmann and Stanley Pons announced that they had measured nuclear-scale excess energy from a palladium-heavy water electrochemical cell, and that they had also detected some preliminary evidence of nuclear signatures from their exotic energy-producing reactions, the world was in awe. Their famous afternoon press conference at the University of Utah, coming less than twelve hours before the...
  • One-atom-thick materials promise a 'new industrial revolution'

    07/24/2005 10:53:00 PM PDT · by LibWhacker · 20 replies · 1,584+ views
    Scientists at The University of Manchester have discovered a new class of materials which have previously only existed in science fiction films and books. A team of British and Russian scientists led by Professor Geim have discovered a whole family of previously unknown materials, which are one atom thick and exhibit properties which scientists had never thought possible. Not only are they ultra-thin, but depending on circumstances they can also be ultra-strong, highly-insulating or highly-conductive, offering a wide range of unique properties for space-age engineers and designers to choose from. Professor Andre Geim said: "This discovery opens up practically infinite...
  • Scientists have finally discovered massless particles, and they could revolutionise electronics

    07/25/2015 5:31:56 PM PDT · by 2ndDivisionVet · 75 replies
    Science Alert ^ | July 23, 2015 | Fiona MacDonald
    They can theoretically carry charge 1,000 times faster than ordinary electrons. After 85 years of searching, researchers have confirmed the existence of a massless particle called the Weyl fermion for the first time ever. With the unique ability to behave as both matter and anti-matter inside a crystal, this strange particle can create electrons that have no mass. The discovery is huge, not just because we finally have proof that these elusive particles exist, but because it paves the way for far more efficient electronics, and new types of quantum computing. "Weyl fermions could be used to solve the traffic...
  • Young scientist discovers magnetic material unnecessary to create spin current

    07/24/2015 10:52:34 AM PDT · by Red Badger · 18 replies
    http://phys.org ^ | July 24, 2015 | by Carla Reiter & Provided by: Argonne National Laboratory
    Typically when referring to electrical current, an image of electrons moving through a metallic wire is conjured. Using the spin Seebeck effect (SSE), it is possible to create a current of pure spin (a quantum property of electrons related to its magnetic moment) in magnetic insulators. However, this work demonstrates that the SSE is not limited to magnetic insulators but also occurs in a class of materials known as paramagnets. Since magnetic moments within paramagnets do not interact with each other like in conventional ferromagnets, and thus do not hold their magnetization when an external magnetic field is removed, this...
  • Researchers identify zebra-like stripes of plasma in a patch of space

    07/14/2015 10:12:34 AM PDT · by Red Badger · 29 replies
    PHYS.ORG ^ | 07-14-2015 | by Jennifer Chu & Provided by: Massachusetts Institute of Technology
    European Space Agency Cluster II satellites observe equatorial noise waves inside the Earth's magnetosphere. Credit: ESA/Yuri Shprits ********************************************************************************************************************************************************** Since the early 1970s, orbiting satellites have picked up on noise-like plasma waves very close to the Earth's magnetic field equator. This "equatorial noise," as it was then named, seemed to be an unruly mess of electric and magnetic fields oscillating at different frequencies in the form of plasma waves. Now a team from MIT, the University of California at Los Angeles, the University of Sheffield, and elsewhere has detected a remarkably orderly pattern amid the noise. In a region of space...
  • More precise estimate of Avogadro's number to help redefine kilogram

    07/14/2015 12:08:59 PM PDT · by Red Badger · 31 replies
    Phys.Org ^ | July 14, 2015 | Provided by: American Institute of Physics
    The number of atoms in this silicon sphere is known given or taken 20 atoms each 10^9. The atom distance was measured by the X-ray interferometer on the left. Credit: Enrico Massa and Carlo Sasso ================================================================================================ An ongoing international effort to redefine the kilogram by 2018 has been helped by recent efforts from a team researchers from Italy, Japan and Germany to correlate two of the most precise measurements of Avogadro's number and obtain one averaged value that can be used for future calculations. Their results are published this week in the Journal of Physical and Chemical Reference Data. Avogadro's...
  • Forsaken pentaquark particle spotted at CERN

    07/14/2015 1:55:01 PM PDT · by LibWhacker · 11 replies
    Nature ^ | 7/14/15 | Matthew Chalmers
    An exotic particle made up of five quarks has been discovered a decade after experiments seemed to rule out its existence. The short-lived pentaquark was spotted by researchers analysing data on the decay of unstable particles in the LHCb experiment at the Large Hadron Collider (LHC) at CERN, Europes particle-physics laboratory near Geneva. The finding, says LHCb spokesperson Guy Wilkinson, opens a new era in physicists understanding of the strong nuclear force that holds atomic nuclei together. The pentaquark is not just any new particle it represents a way to aggregate quarks, namely the fundamental constituents of ordinary protons...