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Keyword: physics

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  • The World's Economic Myths Are Hitting Their Limits: Green energy planners have missed the point that our physics-based economy favors low-cost producers

    04/19/2024 10:25:39 PM PDT · by SeekAndFind · 13 replies
    Finite World Blog ^ | 04/19/2024 | Gail Tverberg
    There are many myths about energy and the economy. In this post I explore the situation surrounding some of these myths.My analysis strongly suggests that the transition to a new Green Economy is not progressing as well as hoped.Green energy planners have missed the point that our physics-based economy favors low-cost producers.In fact, the US and EU may not be far from an economic downturn because subsidized green approaches are not truly low-cost.[1] The Chinese people have long believed that the safest place to store savings is in empty condominium apartments, but this approach is no longer working.The focus on...
  • 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,...
  • "Where Did All of Mars' Carbon Go?" --JPL and Caltech

    11/25/2015 7:24:14 PM PST · by lbryce · 21 replies
    Galaxy Today ^ | November 24, 2015 | Staff
    Caltech and JPL scientists suggest the fingerprints of early photochemistry provide a solution to the long-standing mystery. Mars is blanketed by a thin, mostly carbon dioxide atmosphere—one that is far too thin to prevent large amounts of water on the surface of the planet from subliming or evaporating. But many researchers have suggested that the planet was once shrouded in an atmosphere many times thicker than Earth's. For decades that left the question, "Where did all the carbon go?" Now a team of scientists from Caltech and JPL thinks they have a possible answer. The researchers suggest that 3.8 billion...
  • 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...
  • Astronomy Picture of the Day - Swirling Magnetic Field around Our Galaxy's Central Black Hole

    04/01/2024 1:14:29 PM PDT · by MtnClimber · 13 replies
    NASA ^ | 1 Apr, 2024 | Image Credit: EHT Collaboration
    Explanation: What's happening to the big black hole in the center of our galaxy? It is sucking in matter from a swirling disk -- a disk that is magnetized, it has now been confirmed. Specifically, the black hole's accretion disk has recently been seen to emit polarized light, radiation frequently associated with a magnetized source. Pictured here is a close-up of Sgr A*, our Galaxy's central black hole, taken by radio telescopes around the world participating in the Event Horizon Telescope (EHT) Collaboration. Superposed are illustrative curved lines indicating polarized light likely emitted from swirling magnetized gas that will soon...
  • 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...
  • EV startup Fisker slashes prices of Ocean SUV amid debt troubles

    03/28/2024 7:39:26 AM PDT · by thegagline · 14 replies
    Reuters by way of MSN ^ | 03/28/2024 | Staff
    Electric-vehicle startup Fisker said on Wednesday it was cutting the prices of its 2023 electric Ocean SUV model, signaling an attempt by the cash-strapped firm to drum up demand and ease concerns regarding its uncertain future. The company slashed the price tag of the entry level version - Ocean Sport - by around 36%, or $14,000, bringing it down to $24,999 from $38,999 earlier. The company said it will reduce the price of the top-end version of the vehicle, called "Extreme", by around 39%, or $24,000, to $37,499. Fisker also cut the price of its Ocean Ultra version to $34,999...
  • 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...
  • 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...