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Keyword: stringtheory

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  • Record-Breaking Stellar Black Hole Found Lurking Close to Earth

    04/17/2024 12:58:44 PM PDT · by Red Badger · 23 replies
    Science Alert ^ | 17 April 2024 | MICHELLE STARR
    You never really know what you might find hiding in your own backyard, especially if those things are particularly adept at escaping detection. Just 1,924 light-years from the Solar System, in the constellation of Aquila, astronomers have just discovered a black hole. And it's not just any black hole. Named Gaia BH3, or BH3, the object is the most massive stellar-mass black hole we've ever spotted in the Milky Way, clocking in at a hefty 33 times the mass of the Sun. It's the second-closest black hole we've found to our home-world, and it's just hanging out, quietly in space,...
  • Department of Energy Fusion Discovery Could Allow Physicists to Tame Volatile Plasmas

    04/17/2024 7:22:44 AM PDT · by Red Badger · 16 replies
    The Debrief ^ | APRIL 16, 2024 | MICAH HANKS
    (Princeton Plasma Physics Laboratory) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Researchers at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) have developed a new strategy in the quest to harness fusion to produce electricity: combining two existing methods of managing plasma to allow greater overall flexibility. The PPPL team’s new dual approach brings together electron cyclotron current drive (ECCD) methods with resonant magnetic perturbations (RMP), marking the first time a simulation showing how they can be used together could facilitate greater control of plasma during fusion reactions. In simple terms, fusion produces energy by replicating the natural processes occurring on the surface of...
  • First-Ever 2D Single-Atom Layer of GOLD Created Using 100-Year-Old Japanese Etching Technique

    04/16/2024 1:14:34 PM PDT · by Red Badger · 5 replies
    The Debrief ^ | APRIL 16, 2024 | CHRISTOPHER PLAIN
    Research scientists from Linköping University (LiU) in Sweden say they have created the first two-dimensional single-atom layer of gold using a technique perfected by Japanese smiths over 100 years ago. Dubbed “goldene” in reference to the popular single-atom carbon material graphene that essentially kicked off the 2D materials revolution, the breakthrough material could possess a large number of exotic properties like those found in other single-atom 2D materials. The researchers behind the first-ever accomplishment also say they believe goldene could also offer several immediate applications. These include new methods for harvesting energy, catalysis for hydrogen generation, carbon conversion, water purification,...
  • 'Warp Factory' Simulator From Physics Think Tank to Aid Creation of Star Trek-Style Warp Drives

    04/15/2024 7:58:38 AM PDT · by Red Badger · 57 replies
    The Debrief ^ | April 15, 2024 | CHRISTOPHER PLAIN
    International Thinktank Applied Physics (AP) has released its “Warp Factory” simulator and toolkit to help scientists and engineers move closer to building a real-world Star Trek-style warp drive. Having already established itself in the nascent field of warp mechanics with the previous release of its “physical warp drive” design in 2021, AP is now offering its expertise to the broader community to advance the development of existing and future warp drive concepts. The Public Benefit Corporation is also putting its money where its mouth is by offering warp field theorists a chance at $500,000 worth of grant money, a commitment...
  • Scientists Create Levitating Graphite Plate For Ultra-Sensitive Quantum Sensors

    04/11/2024 6:14:25 AM PDT · by Red Badger · 11 replies
    Science Alert ^ | April 11, 2024 | DAVID NIELD
    (Okinawa Institute of Science and Technology) Levitation is the kind of superpower many researchers would love to get their hands on. While there are a number of ways to fight the forces of gravity, few are suitable for the kinds of ultrasensitive devices that would benefit from floating untethered in a vacuum. Led by a team from the Okinawa Institute of Science and Technology (OIST) in Japan, a team of researchers have found a way to shield thin wafers of graphite as they hover freely above a grid of magnets, making them far less susceptible to currents that interfere with...
  • Peter Higgs, Who Proposed the Existence of the 'God Particle,' Has Died at 94

    04/09/2024 3:26:13 PM PDT · by nickcarraway · 23 replies
    PHYS.ORG ^ | APRIL 9, 2024 | DANICA KIRKA, JILL LAWLESS and JAMEY KEATEN
    Nobel prize-winning physicist Peter Higgs, who proposed the existence of the so-called "God particle" that helped explain how matter formed after the Big Bang, has died at age 94, the University of Edinburgh said Tuesday. The university, where Higgs was emeritus professor, said he died Monday following a short illness. Higgs predicted the existence of a new particle, which came to be known as the Higgs boson, in 1964. He theorized that there must be a sub-atomic particle of certain dimension that would explain how other particles—and therefore all the stars and planets in the universe—acquired mass. Without something like...
  • The Three-Body Problem: From Celestial Mechanics to Human Interactions

    04/04/2024 12:05:33 PM PDT · by Red Badger · 9 replies
    The Debrief ^ | APRIL 4, 2024 | AVI LOEB
    There are striking analogies between the interpersonal relationships of humans and the gravitational interaction of physical bodies in space. Consider a two-body system. In both realms, the systems can have stable configurations, leading to long-lived marriages or stellar binaries. But when a third body interacts strongly with these systems, a non-hierarchical three-body system often displays chaos with one of the members ejected and the other two remaining bound. This brings up analogies with interpersonal relationships when a third body is added to a non-hierarchical two-body system. The chaotic gravitational dynamics in a system of three stars inspired the storyline for...
  • ‘Artificial sun’ sets record for time at 100 million degrees in latest advance for nuclear fusion

    04/02/2024 7:05:01 PM PDT · by vespa300 · 26 replies
    CNN (sorry) ^ | 4/1/2024 | Laura Paddison
    Scientists in South Korea have announced a new world record for the length of time they sustained temperatures of 100 million degrees Celsius — seven times hotter than the sun’s core — during a nuclear fusion experiment, in what they say is an important step forward for this futuristic energy technology.
  • Quantum Mechanics Hack Could Lead To "Unbreakable" Metals By Leveraging Weird Distortion Of Atoms

    04/02/2024 8:53:34 AM PDT · by Red Badger · 25 replies
    The Debrief ^ | MARCH 29, 2024 | MICAH HANKS
    Scientists say they have created a new method of testing materials that allows predictions to be made about their ductility, which could lead to the production of virtually “unbreakable” metals for use with components in a variety of applications. Drawing from quantum mechanics principles, the new method allows for significant improvements by enhancing predictions about metals’ ability to be drawn out into thinner shapes while maintaining their strength. According to researchers involved with the discovery, the new method has proven very effective for metals used in high-temperature applications and could help industries like aerospace and other fields perform tests of...
  • CERN to test world's most powerful particle accelerator during April's solar eclipse to search for 'invisible' matter that secretly powers our universe

    03/31/2024 12:36:29 PM PDT · by BenLurkin · 50 replies
    Daily Mail UK ^ | 28 March 2024 | Stacey Liberatore
    The world’s largest and most powerful particle accelerator is set smash protons together on April 8 to search for invisible particles secretly powering our universe. Theories have suggested there are 17 different particle groups and the European Organization for Nuclear Research, better known as CERN, confirmed the existence of one using its Large Hadron Collider (LHC) in 2012. Now, the team has restarted the LHC with hopes of unraveling more mysteries of the universe - specifically dark matter. Scientists began preliminary tests by sending billions of protons around the LHC's ring of superconducting magnets to boost their energy and ensure...
  • Scientists find one of the most ancient stars that formed in another galaxy

    03/26/2024 1:04:10 PM PDT · by Red Badger · 12 replies
    Eureka Alert! ^ | 20-MAR-2024 | Peer-Reviewed Publication UNIVERSITY OF CHICAGO
    Stars from the Large Magellanic Cloud reveal new hints about how the universe got its elements ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. The iron running in your veins and the calcium in your teeth and the sodium powering your thoughts were all born in the heart of a long-dead star. No one has been able to find one of those first generation of stars, but scientists have announced a unique...
  • World’s fastest camera shoots at 156.3 trillion frames per second

    03/26/2024 11:50:12 AM PDT · by Red Badger · 35 replies
    New Atlas ^ | March 26, 2024 | By Michael Irving
    Engineers at INRS Énergie Matériaux Télécommunications Research Centre in Canada have developed the world’s fastest camera, which can shoot at an astonishing 156.3 trillion frames per second (fps). The best slow-mo cameras in phones are usually working with a few hundred fps. Professional cinematic cameras might use a few thousand, to achieve a smoother effect. But if you want to see what’s going on at the nanoscale, you’ll need to slow things way down, to the billions or even trillions of frames per second. The new camera can reportedly capture events that occur in the realm of femtoseconds – quadrillionths...
  • Study: Dark matter does not exist and the universe is 27 billion years old

    03/17/2024 9:14:09 AM PDT · by yesthatjallen · 61 replies
    Earth via MSN ^ | 03 17 2024 | Eric Ralls
    The fabric of the cosmos, as we currently understand it, comprises three primary components: 'normal matter,' 'dark energy,' and 'dark matter.' However, new research is turning this established model on its head. A recent study conducted by the University of Ottawa presents compelling evidence that challenges the traditional model of the universe, suggesting that there may not be a place for dark matter within it. Dark matter, a term used in cosmology, refers to the elusive substance that does not interact with light or electromagnetic fields and is only identifiable through its gravitational effects. Despite its mysterious nature, dark matter...
  • Unexpected Discovery of “Impossible Galaxy” Shatters Astronomical Boundaries

    03/15/2024 12:54:00 PM PDT · by Red Badger · 27 replies
    Scitech Daily ^ | MARCH 13, 2024 | By KIM BAPTISTA, ARIZONA STATE UNIVERSITY
    The unexpected discovery of the dwarf galaxy PEARLSDG, which is isolated and quiescent, challenges established views on galaxy evolution and highlights the capabilities of the James Webb Space Telescope in uncovering cosmic phenomena. (Artist’s concept.) Credit: SciTechDaily.com PEARLSDG, an isolated dwarf galaxy found by the James Webb Space Telescope, defies standard galactic evolution theories by not forming new stars, indicating a need to revise our understanding of galaxies. A team of astronomers, led by Arizona State University Assistant Research Scientist Tim Carleton, has discovered a dwarf galaxy that appeared in James Webb Space Telescope (JWST) imaging that wasn’t the primary...
  • Astronomers Discover Something Strange About The Oldest 'Dead' Galaxy In The Universe

    03/07/2024 9:13:15 AM PST · by Red Badger · 16 replies
    The Debrief ^ | MARCH 7, 2024 | MJ BANIAS
    Astronomers using the James Webb Space Telescope (JWST) have made a groundbreaking discovery: a galaxy that ceased forming new stars over 13 billion years ago, making it the oldest ‘dead’ galaxy ever observed. The galaxy, which existed a mere 700 million years after the Big Bang, is odd by galactic standards. Now, based on recent findings, it’s also challenging our understanding of early galaxy evolution. In research led by Tobias J. Looser and an international team of astronomers, the James Webb Space Telescope (JWST) has discovered an ancient quiescent galaxy. At a redshift of z=7.3, it is the oldest galaxy...
  • How the world will end: Terrifying graphic reveals the gruesome fate of every planet when the Sun dies

    03/02/2024 5:08:19 AM PST · by Libloather · 44 replies
    Daily Mail ^ | 3/02/24 | Wiliam Hunter
    From the AI apocalypse to a full-blown nuclear war, it seems that there is an almost endless list of things that might cause the end of the world. But, if those terrifying fates gest us, there is one doomsday event that Earth can't avoid. A terrifying graphic reveals how the Sun will grow into a vast 'red giant' star, becoming so large that it will be the end of the solar system as we know it. Although this might seem utterly petrifying, you don't need to start worrying just yet. Dr Edward Bloomer, senior astronomer at Royal Observatory Greenwich, said:...
  • Physicists Have Figured Out a Way to Measure Gravity on a Quantum Scale

    02/23/2024 10:11:52 PM PST · by Red Badger · 10 replies
    Science Alert ^ | 24 February 2024 | MICHELLE STARR
    An artist's impression of the experiment. (University of Southampton) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Acting on a tiny particle levitating in a magnetic trap, physicists have just measured the smallest gravitational pull ever recorded. The particle weighed just 0.43 grams. And the strength of the gravitational force at play was on the scale of attonewtons (10-18 newtons). That's small enough to be right on the verge of the quantum realm, teasing the possibility of finally figuring out how classical physics and quantum mechanics interact. "For a century, scientists have tried and failed to understand how gravity and quantum mechanics work together," says physicist Tim...
  • Yale University To Reinstate Standardized Test Requirement For Admissions

    02/22/2024 5:39:28 AM PST · by JSM_Liberty · 23 replies
    Forbes ^ | Feb 22, 2024,08:04am EST | Michael T. Nietzel
    Yale University will once again require standardized testing for students applying for admission in the fall of 2025. The decision, announced today, ends the test-optional undergraduate admissions process that had been in place at Yale since the pandemic. According to the announcement, the past four years of test-optional admissions had given Yale what it described as “an invaluable opportunity to think deeply about testing policy and to generate new data and analyses. With testing availability now fully restored for prospective applicants around the world, we have reevaluated our policy with the benefit of fresh insights.” Yale is describing its new...
  • Brightest and fastest-growing: astronomers identify record-breaking quasar

    02/21/2024 7:03:26 PM PST · by Red Badger · 8 replies
    ESO ^ | 19 February 2024 | Staff
    Using the European Southern Observatory’s (ESO) Very Large Telescope (VLT), astronomers have characterised a bright quasar, finding it to be not only the brightest of its kind, but also the most luminous object ever observed. Quasars are the bright cores of distant galaxies and they are powered by supermassive black holes. The black hole in this record-breaking quasar is growing in mass by the equivalent of one Sun per day, making it the fastest-growing black hole to date. The black holes powering quasars collect matter from their surroundings in a process so energetic that it emits vast amounts of light....
  • James Webb Space Telescope finds neutron star mergers forge gold in the cosmos: 'It was thrilling'

    02/21/2024 8:26:51 PM PST · by Red Badger · 24 replies
    SPACE.com ^ | 21 FEB 2024 | By Robert Lea
    "This is the first time we've been able to verify that metals heavier than iron and silver were freshly made in front of us." An illustration of two neutron stars colliding and merging to create a kilonova blast. (Image credit: Robin Dienel/Carnegie Institution for Science) Scientists have analyzed an unusually long blast of high-energy radiation, known as a gamma-ray burst (GRB), and determined that it originated from the collision of two ultradense neutron stars. And, importantly, this result helped the team observe a flash of light emanating from the same event that confirms these mergers are the sites that create...