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Keyword: stringtheory

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  • Tetra-Neutron Experiment: Understanding of Nuclear Forces Might Have To Be Significantly Changed

    12/12/2021 8:57:01 PM PST · by BenLurkin · 14 replies
    scitechdaily ^ | DECEMBER 12, 2021 | TECHNICAL UNIVERSITY OF MUNICH (TUM)
    While all atomic nuclei except hydrogen are composed of protons and neutrons, physicists have been searching for a particle consisting of two, three, or four neutrons for over half a century. Experiments by a team of physicists of the Technical University of Munich (TUM) at the accelerator laboratory...now indicate that a particle comprising four bound neutrons may well exist. Should such particle exist, parts of the theory of the strong interaction would need to be rethought. In 2016, a group in Japan attempted to produce tetra-neutrons from helium-4 by bombarding it with a beam of radioactive helium-8 particles. This reaction...
  • I wrote the book on warp drive. No, we didn’t accidentally create a warp bubble.

    12/12/2021 12:43:38 PM PST · by LibWhacker · 23 replies
    Big Think ^ | 12/9/2021 | Ethan Siegel
    In perhaps his most famous quip of all time, celebrated physicist Richard Feynman once remarked, when speaking about new discoveries, “The first principle is that you must not fool yourself—and you are the easiest person to fool.” When you do science yourself, engaging in the process of research and inquiry, there are many ways you can become your own worst enemy. If you’re the one proposing a new idea, you must avoid falling into the trap of becoming enamored with it; if you do, you run the risk of choosing to emphasize only the results that support it, while discounting...
  • DARPA Funded researchers accidentally create the world's first warp bubble

    12/07/2021 1:59:36 PM PST · by reed13k · 26 replies
    https://thedebrief.org/darpa-funded-researchers-accidentally-create-the-worlds-first-warp-bubble/?fbclid=IwAR0Fk1AB54CDA-ctHDN4hMrIcI6C8Bw-UIAxOk-BFEsnlnNPFzmHEZkvJiM Warp drive pioneer and former NASA warp drive specialist Dr. Harold G “Sonny” White has reported the successful manifestation of an actual, real-world “Warp Bubble.” And, according to White, this first of its kind breakthrough by his Limitless Space Institute (LSI) team sets a new starting point for those trying to manufacture a full-sized, warp-capable spacecraft.
  • Darpa Funded Researchers Accidentally Create The World's First Warp Bubble

    12/06/2021 2:52:02 PM PST · by RoosterRedux · 47 replies
    The Debrief ^ | Chris Plain
    Warp drive pioneer and former NASA warp drive specialist Dr. Harold G “Sonny” White has reported the successful manifestation of an actual, real-world “Warp Bubble.” And, according to White, this first of its kind breakthrough by his Limitless Space Institute (LSI) team sets a new starting point for those trying to manufacture a full-sized, warp-capable spacecraft. “To be clear, our finding is not a warp bubble analog, it is a real, albeit humble and tiny, warp bubble,” White told The Debrief, quickly dispensing with the notion that this is anything other than the creation of an actual, real-world warp bubble....
  • Physicists detect signs of neutrinos at Large Hadron Collider

    11/26/2021 9:41:58 AM PST · by Scarlett156 · 20 replies
    Phys Org ^ | 11/26/2021 | phys. org
    The international Forward Search Experiment team, led by physicists at the University of California, Irvine, has achieved the first-ever detection of neutrino candidates produced by the Large Hadron Collider at the CERN facility near Geneva, Switzerland. In a paper published today in the journal Physical Review D, the researchers describe how they observed six neutrino interactions during a pilot run of a compact emulsion detector installed at the LHC in 2018.
  • Simplified quantum computer can be made with off-the-shelf components

    12/01/2021 9:53:19 AM PST · by ShadowAce · 22 replies
    New Atlas ^ | 29 November 2021 | Michael Irving
    Quantum computers could one day blow boring old classical computers out of the water, but so far their complexity limits their usefulness. Engineers at Stanford have now demonstrated a new relatively simple design for a quantum computer where a single atom is entangled with a series of photons to process and store information.Quantum computers tap into the weird world of quantum physics to perform calculations far faster than traditional computers can handle. Where existing machines store and process information in bits, as either ones and zeroes, quantum computers use qubits, which can exist as one, zero, or a superposition of...
  • Google’s ‘time crystals’ could be the greatest scientific achievement of our lifetimes

    08/02/2021 3:03:43 PM PDT · by LibWhacker · 81 replies
    The Next Web ^ | 7/30/2021 | Tristan Greene
    Eureka! A research team featuring dozens of scientists working in partnership with Google‘s quantum computing labs may have created the world’s first time crystal inside a quantum computer. This is the kind of news that makes me want to jump up and do a happy dance. These scientists may have produced an entirely new phase of matter. I’m going to do my best to explain what that means and why I personally believe this is the most important scientific breakthrough in our lifetimes. However, for the sake of clarity, there’s two points I need to make first: 1. Time crystals...
  • Spooky Quantum Effect That Turns Matter Invisible Finally Demonstrated author logo

    11/23/2021 9:18:51 AM PST · by Red Badger · 25 replies
    https://www.sciencealert.com ^ | BEN TURNER, | 22 NOVEMBER 2021
    A weird quantum effect that was predicted decades ago has finally been demonstrated – if you make a cloud of gas cold and dense enough, you can make it invisible. Scientists at the Massachusetts Institute of Technology (MIT) used lasers to squeeze and cool lithium gas to densities and temperatures low enough that it scattered less light. If they can cool the cloud even closer to absolute zero (minus 459.67 degrees Fahrenheit, or minus 273.15 degrees Celsius), they say it will become completely invisible. The bizarre effect is the first ever specific example of a quantum mechanical process called Pauli...
  • Rare Einstein manuscript set to fetch millions

    11/22/2021 6:19:08 PM PST · by algore · 25 replies
    A rare manuscript by theoretical physicist Albert Einstein goes under the hammer in Paris on Tuesday, with auctioneers aiming for a stratospheric price tag. The manuscript, containing preparatory work for Einstein's key achievement the theory of relativity, is estimated at between two and three million euros (2.3-3.4 million), according to Christie's which is hosting the sale on behalf of the Aguttes auction house. "This is without a doubt the most valuable Einstein manuscript ever to come to auction," Christie's said in a statement. The 54-page document was handwritten in 1913 and 1914 in Zurich, Switzerland, by Einstein and his colleague...
  • Wild New Theory Suggests Wormholes Could Be Stable Shortcuts Through Space-Time

    11/16/2021 10:55:28 PM PST · by BenLurkin · 20 replies
    The simplest way to construct a wormhole is to "extend" the idea of a black hole with its mirror image, the white hole. This idea was first proposed by Albert Einstein and Nathan Rosen, hence the reason wormholes are sometimes called "Einstein-Rosen bridges". This creates a tunnel through space-time. Einstein and Rosen constructed their wormhole with the usual Schwarzschild metric, and most analyses of wormholes use that same metric. So physicist Pascal Koiran at Ecole Normale Supérieure de Lyon in France tried something else: using the Eddington-Finkelstein metric instead. His paper, described in October in the preprint database arXiv, is...
  • Nuclear Radiation “Fast Neutrons” Used To Transmit Digital Data Wirelessly

    11/17/2021 10:14:09 AM PST · by Red Badger · 51 replies
    https://scitechdaily.com ^ | NOVEMBER 17, 2021 | By LANCASTER UNIVERSITY
    Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology. Radio waves and mobile phone signals rely on electromagnetic radiation for communication but in a new development, engineers from Lancaster University in the UK, working with the Jožef Stefan Institute in Slovenia, transferred digitally encoded information using “fast neutrons” instead. The researchers measured the spontaneous emission of fast neutrons from californium-252, a radioactive isotope produced in nuclear reactors. Modulated emissions were measured using a detector and recorded on a laptop. Several examples of information, i.e., a word, the alphabet, and a random number selected blindly,...
  • New Record For Coldest Temperature Is Getting Very Close To Absolute Zero

    11/10/2021 11:16:10 AM PST · by Red Badger · 19 replies
    https://www.iflscience.com ^ | 08 October 2021 | Stephen Luntz
    The record for the coldest temperature ever achieved has been broken with the cooling of rubidium gas to 38 picokelvins (3.8 * 10-11 K). The work could lead to new insights into quantum mechanics. Temperature is a measure of the energy in atoms' or molecules' vibrations. The lowest temperature theoretically possible is absolute zero – 0 K or −273.15 ºC (−459.67 ºF) – which would require a complete cessation of movement. That's probably impossible practically, but for decades physicists have shown we can get very, very close by using lasers to damp atomic motion. In Physical Review Letters German scientists...
  • Strange Quasiparticles – Called Anyons – May Be Useful in Future Quantum Computers

    11/12/2021 11:45:53 AM PST · by Red Badger · 20 replies
    https://scitechdaily.com ^ | 12 NOVEMBER 2021 | By BROWN UNIVERSITY
    Researchers Show New Strategy for Detecting Non-Conformist Particles Called Anyons By observing how strange particles called anyons dissipate heat, researchers have shown that they can probe the properties of these particles in systems that could be relevant for topological quantum computing. A team of Brown University researchers has shown a new method of probing the properties of anyons, strange quasiparticles that could be useful in future quantum computers. In research published in the journal Physical Review Letters, the team describes a means of probing anyons by measuring subtle properties of the way in which they conduct heat. Whereas other methods...
  • California Tries to Close the Gap in Math, but Sets Off a Backlash

    11/06/2021 6:49:09 AM PDT · by devane617 · 129 replies
    nytimes ^ | 11/06/2021
    California Tries to Close the Gap in Math, but Sets Off a Backlash Proposed guidelines in the state would de-emphasize calculus, reject the idea that some children are naturally gifted and build a connection to social justice. Critics say math shouldn’t be political. But ever since a draft was opened for public comment in February, the recommendations have set off a fierce debate over not only how to teach math, but also how to solve a problem more intractable than Fermat’s last theorem: closing the racial and socioeconomic disparities in achievement that persist at every level of math education. The...
  • Electric Fusion Systems

    06/05/2021 10:25:16 AM PDT · by Varmint Al · 36 replies
    Electric Fusion Systems ^ | 6/5/2021 | Pioneering at the Frontier of Fusion Physics
    We have designed and tested a compact aneutronic fusion reactor capable of delivering tens of kilowatts of power, yet scalable to megawatts. It can deliver constant, distributed energy, anywhere, anytime, without generating greenhouse gases or other waste products, or requiring expensive capital infrastructure or exotic materials, or even any oxygen or solar energy to operate.
  • Electric Fusion Systems Claims it has Cracked the Code for Practical Fusion, Describes its Fusion Reactor a “Monstrous Leap in Clean Energy Technology”

    07/07/2021 10:37:03 AM PDT · by Red Badger · 103 replies
    Thanks to a reader for letting me know about the claims of a new company named Electric Fusion Systems who have announced success in creating a compact fusion reactor which they state “heralds a monstrous leap in clean energy technology, not an incremental improvement to existing technology.” (https://electricfusionsystems.com/#tech). Here is how they describe their reactor: “We have designed and tested a compact aneutronic fusion reactor capable of delivering tens of kilowatts of power, yet scalable to megawatts. It can deliver constant, distributed energy, anywhere, anytime, without generating greenhouse gases or other waste products, or requiring expensive capital infrastructure or exotic...
  • Scientists At MIT Have Generated The Strongest High-Temperature Magnetic Field Ever: Opens the door to long-awaited development of practical, low-cost, carbon-free power plants

    11/05/2021 8:06:51 AM PDT · by SeekAndFind · 40 replies
    Wonderful Engineering ^ | 11/04/2021 | Jannat Un Nisa
    The future of clean energy appears to be on the horizon. After three years of intensive research, a team led by scientists at the Massachusetts Institute of Technology (MIT) ramped up a large high-temperature superconducting electromagnet to generate a record-breaking magnetic field with a strength of 20 teslas, the most powerful magnetic field of its kind ever created on Earth.The MIT scientists collaborated with Cambridge and the Bill Gates-backed Commonwealth Fusion Systems (CFS) to create the world’s strongest fusion magnet, tested at the MIT Plasma Science and Fusion Center in Cambridge, Massachusetts. During the test, it generated a strong magnetic...
  • Time Travel Tremors

    10/29/2021 11:49:05 AM PDT · by Red Badger · 29 replies
    https://principia-scientific.com ^ | October 29, 2021 | Written by canadafreepress.com
    What began as internet rumblings over the gross distortions of science to support the ‘Big Bang Hypothesis’ is now producing tangible rifts in the planet’s tectonic thought plates. We are on the threshold of a startling new reality. Wise men once said the world was flat. Wise never meant never wrong. Wiser men now say the universe is not expanding, but rotating. Understanding this rotation is all that prevents limited time travel. We will begin with the startling equations of Einstein and Godel in 1949. To those students intent on additional mathematics support of this theory, please refer to stress-energy...
  • Physicists Capture The Most Precise Measurement Yet of a Neutron's Lifespan

    10/14/2021 5:55:28 AM PDT · by Red Badger · 25 replies
    https://www.sciencealert.com ^ | OCT 13, 2021 | MICHELLE STARR
    We now know, to within a tenth of a percent, how long a neutron can survive outside the atomic nucleus before decaying into a proton. This is the most precise measurement yet of the lifespan of these fundamental particles, representing a more than two-fold improvement over previous measurements. This has implications for our understanding of how the first matter in the Universe was created from a soup of protons and neutrons in the minutes after the Big Bang. "The process by which a neutron 'decays' into a proton – with an emission of a light electron and an almost massless...
  • The End of Science

    10/29/2021 3:09:38 AM PDT · by Kaslin · 11 replies
    Americanthinker.com ^ | October 29, 2021 | Jeremy Egerer
    Rebecca West writes, in The New Meaning of Treason, that a lot of our scientists during World War 2 were communists. There are several reasons this is important, but the first is that they immediately leaked our research on atomic bombs to Stalin. They honestly believed in a "global scientific community" — that science knows no political boundaries, and that the world would be better if scientists shared all their information with each other. Somehow this would usher in an age of peace and plenty, and scientific know-how would mean food for the poor and an end to oppression. So...