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Phys.org / In Senegal, a 2,000‑year‑old iron workshop sheds new light on the past
How was iron produced 2,000 years ago in Senegal? A recent study at the Didé West 1 archaeological site, in the Falémé Valley in eastern Senegal, sheds light on an ancient iron production technique.
Phys.org / JWST finds a stellar bar in the early universe that breaks all rules
Astronomers using the James Webb Space Telescope (JWST) have discovered a stellar bar in GN20, a massive galaxy seen just 1.5 billion years after the Big Bang. The new paper was submitted to the preprint server arXiv on May ...
Phys.org / Topological states emerge in quantum Hall-superconductor devices with multiple channels
Topological phases are unusual states of matter that give rise to properties protected by a material's overall structure (i.e., "topology"), as opposed to microscopic details. These phases are of great interest for the development ...
Phys.org / Silver nanoparticles enable assembly of a theorized, previously unobserved crystal metallic structure
Using finely tuned nanoscale building blocks, researchers from Brown University and the University of Michigan College of Engineering have stabilized a fleeting structural phase of matter that had been predicted theoretically ...
Phys.org / Chang'e-5 regolith studies reveal nanoscale space-weathering processes
On the moon, the lack of atmosphere and accompanying features such as biological activity, oxygen-rich air, flowing water and rain, wind, and most erosion allows the lunar regolith to preserve a long-term record of surface ...
Phys.org / Ripples in fire-ant collectives suggest motions are driven by neighbor alignments
Researchers in Spain have discovered that in collectives of moving fire ants, rippling "waves" of density and activity are likely triggered by local regions where ants collectively travel in the same direction as their neighbors.
Tech Xplore / Optical device uses humidity to unlock hidden information and offers new option for data storage
Engineers at the University of California San Diego have developed an optical device that reveals hidden images and changes colors in response to different levels of humidity. The technology, published in Light: Science & ...
Phys.org / Rare observations reveal an X9 solar flare before it erupts
Solar flares are powerful bursts of radiation from the sun's surface, which can wreak havoc on Earth's power grids, damage orbiting satellites, and pose serious radiation risks to astronauts. Yet despite decades of study, ...
Phys.org / Surface design transforms thermal management and enables frictionless systems
A research team led by Professor Steven Wang, Associate Vice President (Resources Planning) and Associate Professor in the Department of Mechanical Engineering and School of Energy and Environment, has designed a revolutionary ...
Phys.org / New mathematical model suggests global population crash by 2064
In a new open-access study that I published with my late colleague Kostya Trachenko from Queen Mary University of London, I propose a surprisingly simple nonlinear mathematical equation that unifies 12,000 years of human ...
Phys.org / China launches crewed space flight as part of moon ambitions
China launched its crewed Shenzhou-23 spacecraft and eased it into a successful docking with a space station early Monday as part of Beijing's ambitions to send humans to the moon by 2030, state media said.
Medical Xpress / Thermoreversible biogel may solve a hairy problem for wearable brain-monitoring systems
A vital tool for health care practitioners, electroencephalography (EEG) systems measure electrical activity in the brain through electrodes placed on the scalp, but getting reliable readings can be surprisingly difficult. ...
