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American Physical Society: Physics

  • Focus: Explaining the Ruffles of Lotus Leaves

    Focus: Explaining the Ruffles of Lotus Leaves

    Author(s): Peter WeissA new theory accurately predicts a wide range of leaf shapes and explains the differences between dry lotus leaves and those that grow on water.[Physics 13, 8] Published Fri Jan 24, 2020
    - 3 days ago, 24 Jan 20, 5:00am -
  • Synopsis: Age Determines How a Human Aorta Stretches

    Synopsis: Age Determines How a Human Aorta Stretches

    Younger aortas can expand 5 times more than older ones as fluid pumps through them, a finding that could help to design more successful aortic prostheses.[Physics] Published Thu Jan 23, 2020
    - 4 days ago, 23 Jan 20, 5:00am -
  • Synopsis: Collisions Key in Creating a Quantum Degenerate Gas from Molecules

    Synopsis: Collisions Key in Creating a Quantum Degenerate Gas from Molecules

    Collisions between molecules and free atoms determine the final temperature of a dilute molecular Fermi gas.[Physics] Published Wed Jan 22, 2020
    - 5 days ago, 22 Jan 20, 5:00am -
  • Viewpoint: <i>CP</i> Violations Newly Observed in Beauty Meson Decays

    Viewpoint: <i>CP</i> Violations Newly Observed in Beauty Meson Decays

    Author(s): J. Michael RoneyMeasurements show large matter-versus-antimatter differences in three-pion decays of B mesons, yielding new insights into the strong interaction dynamics that control these decays.[Physics 13, 6] Published Tue Jan 21, 2020
    - 6 days ago, 21 Jan 20, 5:00am -
  • Synopsis: Earth As a Neutrino Source

    Synopsis: Earth As a Neutrino Source

    The Borexino experiment has doubled its data on neutrinos generated inside Earth, providing new constraints on geological models of the mantle.[Physics] Published Tue Jan 21, 2020
    - 6 days ago, 21 Jan 20, 5:00am -
  • Focus: Detecting the Rotation of a Quantum Spin

    Focus: Detecting the Rotation of a Quantum Spin

    Author(s): Philip BallResearchers detected the effect of rotating a crystal on the spin of an embedded particle, a result that could lead to ultrasensitive rotation sensors.[Physics 13, 5] Published Fri Jan 17, 2020
    - 10 days ago, 17 Jan 20, 5:00am -
  • Synopsis: Lightscape Traps Rydberg Atoms in the Dark

    Synopsis: Lightscape Traps Rydberg Atoms in the Dark

    A holographic technique confines excited Rydberg atoms in the central dark region of a 3D light-intensity pattern.  [Physics] Published Thu Jan 16, 2020
    - 11 days ago, 16 Jan 20, 5:00am -
  • Synopsis: A Catalog of High-Energy Gamma-Ray Sources

    Synopsis: A Catalog of High-Energy Gamma-Ray Sources

    A high-altitude observatory has detected nine astrophysical sources emitting gamma rays with extremely high energies.[Physics] Published Wed Jan 15, 2020
    - 12 days ago, 15 Jan 20, 5:00am -
  • Synopsis: Two Lasers in One

    Synopsis: Two Lasers in One

    A single semiconductor laser can produce both an amplitude-modulated and a frequency-modulated frequency comb, demonstrating a physical relationship between two types of output previously thought to be independent.[Physics] Published Tue Jan 14, 2020
    - 13 days ago, 14 Jan 20, 5:00am -
  • Synopsis: Directionally Sensitive Magnetoresistance

    Synopsis: Directionally Sensitive Magnetoresistance

    A new experiment shows that the semiconductor germanium exhibits unidirectional magnetoresistance, which had previously only been seen in more exotic materials.  [Physics] Published Mon Jan 13, 2020
    - 14 days ago, 13 Jan 20, 5:00am -

Nature: Physics

  • Bioelectrical domain walls in homogeneous tissues

    Bioelectrical domain walls in homogeneous tissues

    Nature Physics, Published online: 20 January 2020; doi:10.1038/s41567-019-0765-4A detailed theoretical and experimental investigation of homogeneous cell tissues finds that they can undergo spontaneous spatial symmetry breaking through a purely elect…
    - 7 days ago, 19 Jan 20, 7:00pm -
  • Dynein harnesses active fluctuations of microtubules for faster movement

    Dynein harnesses active fluctuations of microtubules for faster movement

    Nature Physics, Published online: 20 January 2020; doi:10.1038/s41567-019-0757-4The motor protein dynein is associated with microtubule force generation in the cell; how it interacts with cytoskeletal fluctuations is still an open question. Here the…
    - 7 days ago, 19 Jan 20, 7:00pm -
  • Echo in a single vibrationally excited molecule

    Echo in a single vibrationally excited molecule

    Nature Physics, Published online: 20 January 2020; doi:10.1038/s41567-019-0762-7Following an impulsive laser excitation of a single molecule, a dispersed vibrational wave-packet is partially rephased by a second pulse, and a wave-packet echo is obser…
    - 7 days ago, 19 Jan 20, 7:00pm -
  • Network experiment demonstrates converse symmetry breaking

    Network experiment demonstrates converse symmetry breaking

    Nature Physics, Published online: 20 January 2020; doi:10.1038/s41567-019-0742-yAn experiment with three alternating-current generators demonstrates converse symmetry breaking—a phenomenon whereby the system achieves frequency synchronization when…
    - 7 days ago, 19 Jan 20, 7:00pm -
  • Many-body physics with individually controlled Rydberg atoms

    Many-body physics with individually controlled Rydberg atoms

    Nature Physics, Published online: 20 January 2020; doi:10.1038/s41567-019-0733-zThis Review Article outlines the techniques necessary for the manipulation of neutral atoms and making use of their interactions, when excited to Rydberg states, to achie…
    - 7 days ago, 19 Jan 20, 7:00pm -
  • Publisher Correction: Mathematical languages shape our understanding of time in physics

    Publisher Correction: Mathematical languages shape our understanding of time in physics

    Nature Physics, Published online: 16 January 2020; doi:10.1038/s41567-020-0794-zPublisher Correction: Mathematical languages shape our understanding of time in physics
    - 11 days ago, 15 Jan 20, 7:00pm -
  • Negative representation and instability in democratic elections

    Negative representation and instability in democratic elections

    Nature Physics, Published online: 13 January 2020; doi:10.1038/s41567-019-0739-6In a mathematical model of democratic elections, electoral instability is shown to be linked to negative representation, which occurs when a shift in electoral opinions p…
    - 14 days ago, 12 Jan 20, 7:00pm -
  • Electromagnetically induced transparency at a chiral exceptional point

    Electromagnetically induced transparency at a chiral exceptional point

    Nature Physics, Published online: 13 January 2020; doi:10.1038/s41567-019-0746-7The optical analogue of electromagnetically induced transparency and absorption can be modulated by chiral optical states at an exceptional point, which is shown in a sys…
    - 14 days ago, 12 Jan 20, 7:00pm -

Phys.org: Physics News

  • A new twist on quantum communication in fiber

    A new twist on quantum communication in fiber

    New research done at the University of the Witwatersrand in Johannesburg, South Africa, and Huazhang University of Science and Technology in Wuhan, China, has exciting implications for secure data transfer across optical fiber networks. The team have…
    - 3 days ago, 24 Jan 20, 2:00pm -
  • Going with the flow: New insights into mysterious fluid motions

    Going with the flow: New insights into mysterious fluid motions

    Water issuing from an ordinary faucet tells a complex tale of its journey through a pipe. At high velocities, the faucet's gushing stream is turbulent: chaotic, disorderly—like the crash of ocean waves.
    - 3 days ago, 24 Jan 20, 2:00pm -
  • Adding memory to pressure-sensitive phosphors

    Adding memory to pressure-sensitive phosphors

    Mechanoluminescence (ML) is a type of luminescence induced by any mechanical action on a solid, leading to a range of applications in materials research, photonics and optics. For instance, the mechanical action can release energy previously stored i…
    - 3 days ago, 24 Jan 20, 10:30am -
  • Gravity: We might have been getting it wrong this whole time

    Gravity: We might have been getting it wrong this whole time

    Symmetry has been one of the guiding principles in physicists' search for fundamental laws of nature. What does it mean that laws of nature have symmetry? It means that laws look the same before and after an operation, similar to a mirror reflection,…
    - 3 days ago, 24 Jan 20, 9:35am -
  • Experimental probe of a complete 3-D photonic band gap

    Experimental probe of a complete 3-D photonic band gap

    A crystal with a 3-D photonic band gap is a powerful tool to control light, with applications for new types of solar cells, sensors and miniature lasers. Inside a man-made crystal like this, a range of light wavelengths is forbidden. Until now, the c…
    - 3 days ago, 24 Jan 20, 9:33am -
  • On the way to quantum networks

    On the way to quantum networks

    Physicists at LMU, together with colleagues at Saarland University, have successfully demonstrated the transport of an entangled state between an atom and a photon via an optic fiber over a distance of up to 20 km—thus setting a new record.
    - 3 days ago, 24 Jan 20, 9:29am -
  • Discovery sheds new light on how cells move

    Discovery sheds new light on how cells move

    When we cut our skin, groups of cells rush en masse to the site to heal the wound.
    - 3 days ago, 24 Jan 20, 7:58am -
  • Quantum experiments explore power of light for communications, computing

    Quantum experiments explore power of light for communications, computing

    A team from the Department of Energy's Oak Ridge National Laboratory has conducted a series of experiments to gain a better understanding of quantum mechanics and pursue advances in quantum networking and quantum computing, which could lead to practi…
    - 4 days ago, 23 Jan 20, 12:51pm -
  • Wannier90 program becomes community code in major new release

    Wannier90 program becomes community code in major new release

    Wannier functions were first introduced by Gregory Wannier in 1937 as an alternative way of describing the electronic ground state of periodic systems. They were linked to Bloch orbitals, the standard method of describing these ground states, by fami…
    - 4 days ago, 23 Jan 20, 10:45am -
  • Scientists invent a new method of generating intense short UV vortices

    Scientists invent a new method of generating intense short UV vortices

    An international group of scientists, including Skoltech Professor Sergey Rykovanov, has found a way to generate intense "twisted" pulses. The vortices discovered by the scientists will help investigate new materials. The results of their study were…
    - 4 days ago, 23 Jan 20, 10:30am -

Physics Today Magazine

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Scientific American: Physics

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  • When kids interview scientists

    When kids interview scientists

    Science Storytellers brings together two groups of innately curious individuals: scientists and children. Jenny Cutraro, science journalist and educator, worked until the last possible moment. Soon, hundreds of families from around the…
    - 4 days ago, 23 Jan 20, 9:50am -
  • The other dark matter candidate

    The other dark matter candidate

    As technology improves, scientists discover new ways to search for theorized dark matter particles called axions. In the early 1970s, physics had a symmetry problem. According to the Standard Model, the guiding framework of particle phys…
    - 6 days ago, 21 Jan 20, 11:18am -
  • Drag racing and black hole physics

    Drag racing and black hole physics

    The first undergraduate on the Event Horizon Telescope to receive junior collaborator status thrives in the unknown. The silver Mustang was fishtailing, its back wheels losing traction and spinning out on the wet pavement of the New Engl…
    - 11 days ago, 16 Jan 20, 9:00am -
  • The persevering physicist

    The persevering physicist

    To both understand the universe and improve equity, inclusion and diversity in physics, Brian Beckford looks to one word: respect. To mold the mind and bodyTo cultivate a vigorous spiritSo go the first two principles of the Japanese ma…
    - 13 days ago, 14 Jan 20, 9:00am -
  • Expanding a neutrino hunt in the South Pole

    Expanding a neutrino hunt in the South Pole

    A forthcoming upgrade to the IceCube detector will provide deeper insights into the elusive particles. Underneath the vast, frozen landscape of the South Pole lies IceCube, a gigantic observatory dedicated to finding ghostly subatomic par…
    - 18 days ago, 9 Jan 20, 12:17pm -
  • Vera Rubin, giant of astronomy

    Vera Rubin, giant of astronomy

    The Large Synoptic Survey Telescope will be named for an influential astronomer who left the field better than she found it. The Large Synoptic Survey Telescope, a flagship astronomy and astrophysics project currently under construction o…
    - 20 days ago, 7 Jan 20, 6:19am -
  • Particle physics for preschoolers

    Particle physics for preschoolers

    Particle physics might seem too complex for young children, but educators are finding enthusiasm and understanding even among the Sesame Street set. Jason Heeris, a physicist and signal-processing engineer in southeastern Australia, went…
    - 39 days ago, 19 Dec 19, 1:57pm -
  • New physics, naughty and nice

    New physics, naughty and nice

    Grab your cocoa or pumpkin spice—as today we examine what’s naughty and nice. ‘Twas the night before vacay, and all through the lab, not a physicist was stirring, not even an undergrad. To their warm homes they went with laptops in…
    - 41 days ago, 17 Dec 19, 9:00am -
  • Neutron star particles go under the LHC microscope

    Neutron star particles go under the LHC microscope

    Researchers on the ALICE experiment are uncovering the properties of elusive hyperon particles hypothesized to be found inside neutron stars. Scientists know a thing or two about neutron stars, the compacted remains of massive stars that…
    - 46 days ago, 12 Dec 19, 4:04pm -
  • Physics books of 2019

    Physics books of 2019

    Symmetry writer Mike Perricone takes us through a selection of this year’s new popular physics books. The year 2019 was a banner one for Albert Einstein: It included the first image of a black hole and the 100th anniversary of the 1919…
    - 48 days ago, 10 Dec 19, 3:03pm -

The Guardian: Physics

  • Has physicist's gravity theory solved 'impossible' dark energy riddle?
    Prof Claudia de Rham’s ‘massive gravity’ theory could explain why universe expansion is acceleratingCosmologists don’t enter their profession to tackle the easy questions, but there is one paradox that has reached staggering proportions.Since…
    - 2 days ago, 25 Jan 20, 4:00am -
  • 'Giant, shape-shifting stars' spotted near Milky Way's black hole
    Objects raise hopes of scientists managing to track ‘blobs’ being swallowed by black holeA number of bizarre shape-shifting objects have been discovered close to the supermassive black hole at the centre of the Milky Way.The blobs are thought to…
    - 12 days ago, 15 Jan 20, 1:00pm -
  • The science stories that shaped 2019
    From the first image of a black hole to a detailed survey of sea ice in the Arctic, scientists pick the breakthrough moments that defined the yearWas 2019 the year people finally started to listen to climate scientists on global heating? The previous…
    - 36 days ago, 22 Dec 19, 10:00am -
  • Fun, physics and the God particle: a tour of Cern, Switzerland
    Science and art meet on a mind-blowing visit to the European Organization for Nuclear Research, while the fairytale streets of the Swiss capital are a wonder, tooThere is something retro and subterranean about the maze of narrow corridors ahead of us…
    - 57 days ago, 1 Dec 19, 6:00am -
  • Anselm Kiefer: 'When I make a truly great painting, then I feel real'
    Fifty years ago he outraged his fellow Germans with Nazi salutes. Now, at 74, the artist’s epic canvases are exploring a different kind of darknessI arrive at White Cube in south London just as Anselm Kiefer is writing the title of his exhibition o…
    - 63 days ago, 25 Nov 19, 7:57am -
  • At what point does the air around us become the sky above us?
    The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical conceptsAt what point does the air around us become the sky above us?Rosa Aers, Newc…
    - 83 days ago, 5 Nov 19, 7:30am -
  • The Hubble constant: a mystery that keeps getting bigger
    Scientists have found a discrepancy in estimates for the rate of expansion of the universe. Why is this and what does it mean?Astronomers have reached a fundamental impasse in their understanding of the universe: they cannot agree how fast it is flyi…
    - 86 days ago, 2 Nov 19, 12:00pm -
  • David Baddiel on God, gags and being trolled – 'It hurts and then I think: material!'
    The comedian has written his first play – on whether science can prove that the Almighty exists. But first, there are some hecklers to deal with ... Schrödinger’s cat can be both alive and dead – so surely David Baddiel can be both a comedian…
    - 97 days ago, 22 Oct 19, 7:11am -
  • How UK's disused mine shafts could be used to store renewable energy
    Gravitricity develops winch and hoist system to store energy at half the cost of lithium-ion batteriesBritain’s cheapest “virtual battery” could be created by hoisting and dropping 12,000-tonne weights – half the weight of the Statue of Liber…
    - 98 days ago, 21 Oct 19, 1:00am -
  • Nobel prize in physics awarded for work on cosmology – as it happened
    James Peebles, Michel Mayor and Didier Queloz honoured for ‘improving our understanding of evolution of universe and Earth’s place in the cosmos’Full report: Nobel prize in physics goes to cosmology and exoplanet researchers 12.35pm BSTAnd ther…
    - 8 Oct 19, 7:35am -
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A curated aggregation of musings from across the land and of different subject matters for the scanoholics.