Keyword: physics
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An incredible image captures the bizarre UFO–like ring floating above Possagno, a tiny town in the foothills of the Italian Alps. The photograph was taken by photographer Valter Binotto, who watched as the glowing structure flashed in the sky at 10:45 local time on November 17. A photographer has captured a baffling image of a red UFO–like halo floating over the small Italian town of Possagno This ring is likely a structure known as an 'emission of light and very low–frequency perturbations due to electromagnetic pulse sources', or ELVEs for short. These are rings of red or green light created...
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Bounties as high as $100,000 are being offered to contract killers for the murder of dozens of Israeli researchers, including some in the US, on the website of a hateful anti-Zionist group. “The Punishment for Justice Movement” website offers between $50,000 for murdering one of the Jewish academics listed — and twice that amount for the killing of “special targets” — claiming the high-achieving researchers are complicit in child murder. Home addresses, phone numbers, email addresses and social media accounts were listed for at least 40 academics, according to The Jerusalem Post. The website offered a $2,000 USD as reward...
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An artist’s impression of a large red star releasing a bright, explosive burst of light. Swirling red and orange patterns surround the star, suggesting intense activity. In the background, a smaller blue planet appears with a faint, wispy trail extending away from it, indicating its atmosphere being blown off. The scene is set against a dark space backdrop dotted with stars. Credit: Olena Shmahalo/Callingham et al. Astronomers have, for the first time, confirmed a colossal coronal mass ejection from a distant star, a blast so powerful it could strip the atmosphere from any nearby planet. Astronomers using the European Space...
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Harvard physicists unveil system to solve long-standing barrier to new generation of supercomputers The dream of creating game-changing quantum computers — supermachines that encode information in single atoms rather than conventional bits — has been hampered by the formidable challenge known as quantum error correction. In a paper published Monday in Nature, Harvard researchers demonstrated a new system capable of detecting and removing errors below a key performance threshold, potentially providing a workable solution to the problem. “For the first time, we combined all essential elements for a scalable, error-corrected quantum computation in an integrated architecture,” said Mikhail Lukin, co-director...
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Is every "now" the same? Does the past, present, and future all equally exist? Am I having a crisis? The Andromeda Paradox - When is "Now"? | 11:09 Kyle Hill | 2.64M subscribers | 1,021,227 views | August 7, 2020 Andromeda Paradox [YouTube search]
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Why does energy disappear in General Relativity? 0:00 What is symmetry? 4:25 Emmy Noether and Einstein 7:33 General Covariance 11:59 The Principle of Least Action 15:29 Noether's First Theorem 18:24 The Continuity Equation 23:20 Escape from Germany 24:49 The Standard Model - Higgs and Quarks The Hole In Relativity Einstein Didn't Predict | 27:39 Veritasium | 18.4M subscribers | 8,522,299 views | April 14, 2025 Emmy Noether [YouTube search]
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Astronomers recently spotted two unprecedented plasma jets blasting out of a supermassive black hole and into space beyond its galaxy. The two extremely powerful plasma jets are the largest ever seen, measuring 23 million light-years from end to end. This distance would cross approximately 140 Milky Ways arranged side by side. Researchers who spotted this unprecedented phenomenon called the pair of plasma jets “Porphyrion” after a giant in Greek mythology. The two jets originate from the top and bottom of the supermassive black hole and have the combined power of trillions of suns. What exactly are black hole jets? Black...
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Here’s what you’ll learn when you read this story: * Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. * This follows research observing that the present is not changed by a time-traveling qubit. * It’s still not very nice to step on butterflies, though. ======================================================================= In a peer-reviewed paper, a scientist says he has mathematically proven the physical feasibility of a specific kind of time travel. The paper appears in Classical and Quantum Gravity. Germain Tobar and Fabio Costa, both of the University of Queensland at the time of the paper’s publication, worked together on...
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We often imagine our galaxy as a serene, spinning disk of stars, a celestial carousel of light against the black velvet of space. This comforting image, however, is an illusion. From our tiny vantage point, embedded within one of its spiral arms, we are only now learning that the Milky Way is a place of profound and dynamic movement, a living entity that breathes and shudders on a scale almost impossible to comprehend. The latest revelation, born from the unparalleled data of the European Space Agency’s Gaia space telescope, is not just a wobble or a tilt, but a colossal,...
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NATIONAL MOLE DAY We'll eliminate any visions of a burrowing creature celebration immediately; National Mole Day recognizes a special number in chemistry. Chemists and chemistry students mark the occasion each year on October 23rd. #NationalMoleDay More specifically, the celebrations take place between 6:02 AM and 6:02 PM. In the U.S., the time and date are written 6:02 10/23. The time and date are derived from Avogadro’s number. Avogadro's number is approximately 6.02×10^23. Hence, defining the number of particles (atoms or molecules) in one mole of a substance, one of the seven base SI units. A mole is a unit of...
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Ireland has officially joined the European Organization for Nuclear Research (CERN) as an associate member state. CERN is an intergovernmental organization that operates the largest particle physics laboratory in the world on the Franco-Swiss border, just outside Geneva. The main focus of activity in CERN is the Large Hadron Collider (LHC), a 27-km (17-mile) underground ring in which protons are accelerated and collided into one another. Associate membership will allow Ireland’s researchers to participate in CERN’s scientific programs and will make Irish citizens eligible for staff positions and fellowships at CERN. …
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Researchers make landmark advance in the quest to unlock virtually limitless clean energy from the same reaction that powers the stars On a former military airfield a few miles south of Oxford, a group of scientists are trying to bottle the sun. Not literally, of course — but their ambitions come close. Inside a four metre-tall, apple-shaped machine known as the Mega Amp Spherical Tokamak Upgrade (MAST-U), they are attempting to recreate, control and ultimately commercialise the fusion reactions that power the stars. In the past few weeks, they have made landmark progress. Fusion is physics’ grand prize, promising a...
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...Scientists have been keeping a close watch on those changes, both to ensure there’s nothing unexplainable by our current understanding, but also to compare 3I/ATLAS to both previous interstellar visitors as well as comets in our own solar system. A recent paper from European researchers describes how the changes in a particular material ratio in 3I/ATLAS’ coma fit with our current understanding of cometary geology.That ratio is the nickel to iron (Ni/FE) abundance ratio. It has been measured for two decades, including on twenty in-system comets as well as 2I/Borisov, the last known interstellar visitor our solar system had. However,...
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A photograph of a black graphite disk floating above a stack of three, round magnets. (Credit: Adrian Skov (OIST)) Study shows how perfect magnetic symmetry can cancel energy loss. In A Nutshell Researchers at OIST built a 10-millimeter graphite disk that levitates and spins above a magnetic array inside a vacuum chamber. By arranging magnets in perfect circular symmetry, the setup cancels the eddy currents that normally slow conductors moving through magnetic fields. Even at one-billionth of Earth’s air pressure, the disk kept spinning with almost no slowdown; only tiny tilts or material imperfections created measurable friction. This ultra-stable, contact-free...
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Chatter Points * A new model suggests dark matter and dark energy may not be real entities, but effects of changing physical constants. * Galaxy rotation curves from seven galaxies fit the model using one key parameter: a “turn-off density.” * The approach also explains supernovae, galaxy clusters, and the cosmic microwave background without exotic matter. * Challenges remain: galaxies are complex, and no direct evidence yet shows that fundamental constants truly vary. ========================================================================== A physicist at the University of Ottawa has published research suggesting the universe’s most perplexing mysteries — dark matter and dark energy, which together supposedly account...
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Thunderbird, the University of British Columbia’s benchtop-scale particle accelerator and electrochemical reactor. (Photo: UBC) ************************************************************************* Researchers at the University of British Columbia seeking the energy grail of cold fusion—alias lattice confinement fusion or low-energy nuclear reactions (LENR)— used electrochemistry to load extra deuterium ions into a metal lattice and found a “modest” performance boost of 15 percent, compared with experiments without the electrochemical loading technique, according to the university. While the experiment is benchtop scale, with more energy input than gained, it is the first time that deuterium–deuterium fusion has been demonstrated using the technique, according to UBC. The results...
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Scientists using NASA's Hubble Space Telescope have confirmed the presence of electrically-charged molecules in space shaped like soccer balls, shedding light on the mysterious contents of the interstellar medium (ISM) - the gas and dust that fills interstellar space. The molecules … are a form of carbon called "Buckminsterfullerene," also known as "Buckyballs," which consists of 60 carbon atoms (C60) arranged in a hollow sphere. C60 has been found in some rare cases on Earth in rocks and minerals, and can also turn up in high-temperature combustion soot. C60 has been seen in space before. However, this is the first...
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Space can surprise even those who spend their lives studying it. People often think of our solar system as just a few planets and a bunch of empty space. Yet new observations suggest we have been living inside a hot, less dense region, and that there may even be a strange cosmic channel connecting us to distant stars. After years of careful mapping, a new analysis reveals what appears to be a channel of hot, low-density plasma stretching out from our solar system toward distant constellations. Astronomers from the Max Planck Institute recently confirmed it using data from the eRosita...
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A new study explains that time travel itself eventually leads to a reality without it. Is time travel truly possible? The prospect presents its fair share of paradoxes. Of course, there are famous logical examples, such as the Grandfather paradox, which explores what would happen if a time traveler killed their grandparent before their parent was conceived (an idea not so far removed from the plot of the sci-fi great Back to the Future). Other paradoxes are more concerned with mathematical or physical impossibilities within our current understanding of space-time—even though time travel is theoretically possible through phenomena like closed...
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Earlier this year, astronomers watched a burst of high-energy light that kept roaring back for nearly a full day. Gamma-ray bursts (GRBs) are usually sorted into short and long events, and they generally last from milliseconds to a few minutes. In a new study, researchers describe a signal named GRB 250702B that fired three distinct times over a few hours, with soft X-rays flaring even earlier. The team also reported evidence that the source lies beyond our galaxy. Lead researchers Antonio Martin-Carrillo of University College Dublin (UCD) and Andrew J. Levan of Radboud University (RU) directed the effort. Their teams...
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