• Mapping the Thermal Forces That Push Particles through Liquids

    Updated: 2023-11-30 10:00:00
    Author(s): Charles DayUsing fluorescent tracers, researchers visualize the forces that move micrometer-diameter particles through a liquid subjected to a temperature gradient.[Physics 16, s168] Published Thu Nov 30, 2023

  • Control Knob Found for Viscous Fingers

    Updated: 2023-11-29 10:00:00
    Author(s): Michael SchirberThe onset time for “viscous fingering”—an instability that can occur at a gas–liquid boundary—depends on the compressibility of the gas, offering a way to control the behavior.[Physics 16, s171] Published Wed Nov 29, 2023

  • Model Correctly Predicts High-Temperature Superconducting Properties

    Updated: 2023-11-28 10:00:00
    Author(s): David EhrensteinA first-principles model accounts for the wide range of critical temperatures (Tc’s) for four materials and suggests a parameter that determines Tc in any high-temperature superconductor.[Physics 16, s170] Published Tue Nov 28, 2023

  • Tension Remodeling Resolves Tissue Architecture Question

    Updated: 2023-11-27 10:00:00
    Author(s): Rachel Berkowitz<pA dynamical tension model captures how cells swap places with their neighbors in epithelial tissues, explaining observed phase transitions and cellular architectures.[Physics 16, s169] Published Mon Nov 27, 2023

  • Quark Picture Put to the Test

    Updated: 2023-11-27 10:00:00
    Author(s): Thomas Elias CocoliosA measurement of the charge radius of an aluminum nucleus probes the assumption that there are only three families of quarks.[Physics 16, 199] Published Mon Nov 27, 2023

  • Unification, Spinors, Twistors, String Theory

    Updated: 2023-11-22 15:52:34
    Last month I recorded a podcast with Curt Jaimungal for his Theories of Everything site, and it’s now available with audio here, on Youtube here. There are quite a few other programs on the site well worth watching. Much of … Continue reading →

  • Nuclear Ground State Has Molecule-Like Structure

    Updated: 2023-11-21 10:00:00
    Author(s): David EhrensteinThe protons and neutrons in a nucleus can form clusters analogous to atoms in a molecule, even in the nuclear ground state.[Physics 16, s167] Published Tue Nov 21, 2023

  • Uncertainty beyond the Uncertainty Principle

    Updated: 2023-11-21 10:00:00
    Author(s): Charles DayAccording to a new extension to an old theory, a particle’s position cannot be measured precisely even if its momentum is not measured simultaneously.[Physics 16, s150] Published Tue Nov 21, 2023

  • Seeking a Quantum Hall Effect for Light

    Updated: 2023-11-20 10:00:00
    Author(s): Simon A. R. HorsleyLight confined to an accelerating optical cavity could display a photonic counterpart of the electronic quantum Hall effect.[Physics 16, 195] Published Mon Nov 20, 2023

  • Lasers fired at crystals could uncover quantum nature of the vacuum

    Updated: 2023-11-17 19:00:45
    Ultra-short laser pulses may allow us to measure entanglement in a way that answers questions about the quantum nature of the vacuum

  • Tension for a Hubble-Tension Solution

    Updated: 2023-11-17 10:00:00
    Author(s): Michael SchirberAn early-Universe spike in dark energy could resolve a disagreement between two cosmic-expansion-rate measurements, but such a spike may conflict with observations of quasar spectra.[Physics 16, s164] Published Fri Nov 17, 2023

  • Photonic Picture of High Harmonics

    Updated: 2023-11-16 10:00:00
    Author(s): Ryan WilkinsonA new interpretation of high-harmonic generation—the cornerstone of attosecond physics—paves the way for quantum applications of this process.[Physics 16, s162] Published Thu Nov 16, 2023

  • Tailoring the Sizes of Pores in Nanoporous Gold

    Updated: 2023-11-15 10:00:00
    Author(s): Charles DayResearchers can fabricate gold foams that feature small and large pores with specific sizes.[Physics 16, s165] Published Wed Nov 15, 2023

  • It’s a Trap—for Lanthanides

    Updated: 2023-11-14 10:00:00
    Author(s): Rachel BerkowitzTrapping and imaging single dysprosium atoms extends the utility of optical tweezer arrays to electronically complex species, opening the door to new quantum physics studies.[Physics 16, s161] Published Tue Nov 14, 2023

  • Solution for Atomic Clock Puzzle

    Updated: 2023-11-09 10:00:00
    Author(s): Ryan WilkinsonThe resolution of a major discrepancy between theory and experiment for strontium atomic clocks could help improve the precision of these timekeepers.[Physics 16, s160] Published Thu Nov 09, 2023

  • Probing an Antiferromagnet with Sound

    Updated: 2023-11-08 10:00:00
    Author(s): Charles DayThe low oscillation frequency of spin waves in chromium trichloride enables researchers to explore this antiferromagnet’s rich properties with standard laboratory equipment.[Physics 16, s152] Published Wed Nov 08, 2023

  • Now You See It, Now You Don’t

    Updated: 2023-11-08 10:00:00
    Author(s): Katherine WrightA fluid phenomenon seen daily in kitchens has been found to exhibit unexpected behavior.[Physics 16, s151] Published Wed Nov 08, 2023

  • Decoding the Dynamics of Supply and Demand

    Updated: 2023-11-08 10:00:00
    Author(s): Fabrizio LilloAn analysis of data from the Tokyo Stock Exchange provides the first quantitative evidence for the Lillo-Mike-Farmer model—a long-standing theory in economics.[Physics 16, 192] Published Wed Nov 08, 2023

  • Synchronized Surfing of Self-Propelled Particles

    Updated: 2023-11-07 10:00:00
    Author(s): Maggie HudsonMillimeter-sized “surfers” can self-propel across a vibrating liquid surface, interacting with other surfers to create collective patterns.[Physics 16, s156] Published Tue Nov 07, 2023

  • Dynamic Cheerios Stickier than Static Ones

    Updated: 2023-11-03 10:00:00
    Author(s): Agnese CuratoloThe attractive force that causes floating Cheerios to clump together increases in strength when objects are withdrawn from a liquid.[Physics 16, s163] Published Fri Nov 03, 2023

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