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Phys.org / Ytterbium atomic clock could open a new window on fundamental physics

For the first time, an international team of physicists has successfully harnessed a rare orbital transition in atoms of ytterbium to create a new type of atomic clock that is both highly precise and extremely sensitive to ...

23 hours ago
Medical Xpress / Global study finds combined pollution and inequality can accelerate brain aging

An international study published across 34 countries shows that the biological age of the brain can be accelerated or delayed by environmental risk (air pollution, public housing conditions) and protective factors (socioeconomic ...

4 hours ago
Phys.org / Engineered tobacco plant can produce five psychedelics, including psilocybin and DMT

Compounds in psychedelic drugs like DMT, psilocybin, and psilocin are naturally produced in certain plants, fungi, and animals, and have a long history of use in spiritual and therapeutic contexts. Now, a considerable amount ...

20 hours ago
Medical Xpress / Easter eggs can be dyed and still eaten. Just follow these tips to make sure it's safe

Easter is around the corner, and it's time to start thinking about how to decorate your eggs.

4 hours ago
Phys.org / How the octopus uses its 'taste by touch' sensory system to feel out potential mates

A new study by Harvard biologists reveals how octopuses feel their way to potential mates with a "taste by touch" sensory system and can even couple at arm's length without actually seeing each other. In a study featured ...

19 hours ago
Tech Xplore / Microsoft to invest $10 bn for Japan AI data centers

Microsoft said Friday it will invest $10 billion in Japan over the next four years to build artificial intelligence data centers and related infrastructure.

4 hours ago
Phys.org / Gravity from positivity: Single massive spin-3/2 particle makes gravity logically inevitable, study claims

Researchers at IPhT (CEA, CNRS) and the Universitat Autònoma de Barcelona have shown that gravity—and with it, supersymmetry—emerge as logical necessities whenever a massive spin-3/2 particle exists in nature. Two principles ...

21 hours ago
Phys.org / Ghostly particles: Dark radiation may have masqueraded as neutrinos

New research suggests that neutrinos in the early universe may have transformed into a previously unknown form of radiation. A study from Washington University in St. Louis offers a new way to explain certain puzzling observations ...

16 hours ago
Phys.org / Dalí's 'sublime' amber medium may explain unusual aging in a museum masterpiece

As part of the FED-tWIN Face-to-Face project, a multidisciplinary team bringing together the European Centre of Archaeometry (University of Liège, ULiège), the Royal Museums of Fine Arts of Belgium (RMFAB), CNRS-Sorbonne ...

14 hours ago
Phys.org / Astronomers find a third galaxy missing its dark matter, validating a violent cosmic collision theory

Astronomers have long argued that dark matter is the invisible scaffolding that holds galaxies together. Without its immense gravitational pull, the rotational spins of galaxies would force them to simply fly apart. But now, ...

17 hours ago
Phys.org / Scientists study radiation limits for safer seafood shipping

Scientists at Florida International University have identified a promising way to safely ship fish long distances without losing vital vitamin D, using a method already widely applied to preserve other foods—gamma irradiation.

13 hours ago
Tech Xplore / This paint changes colors when hit, revealing location and strength of impact

Imagine a paint that changes color depending on how hard its surface is hit. It could be used on football helmets to monitor concussion-level impacts, to record the handling history of shipped packages, or placed on insoles ...

22 hours ago