Phys.org news

Phys.org / Early Cambrian fossil uncovers key buoyancy structure at the dawn of cephalopod evolution

Extant and ancient cephalopods—including octopuses, squids, extinct ammonites, cuttlefish and nautiluses—have all had to solve the problem of buoyancy, whether they have hard external shells or not.

20 hours ago
Phys.org / What sheep's teeth can tell us about life in a medieval Kazakhstan town

You might not often think about the molars of livestock, but everything from the grass they eat to the water they drink can tell a story about how people lived centuries ago. An international collaboration led by University ...

15 hours ago
Phys.org / A mechanically tunable molecular switch for circularly polarized light emission

Over the past few decades, scientists have become increasingly interested in developing materials that do not simply withstand mechanical forces but instead respond to them in useful, detectable ways. For example, it is now ...

16 hours ago
Phys.org / Black hole 'blast' reaches 300,000 light-years

A team of researchers has discovered that winds generated by supermassive black holes are 100 times more powerful than previously thought, carrying energy across distances of approximately 300,000 light-years. The discovery ...

23 hours ago
Phys.org / Gobi fossil reveals 6-inch 'Cretaceous rabbit' belonged to a different mammal branch

A remarkably preserved fossil from Mongolia's Gobi Desert is reshaping scientists' understanding of mammal evolution during the age of dinosaurs.

22 hours ago
Phys.org / First electrically pumped perovskite polariton laser diode solves a decades-long challenge

Resolving a long-standing problem in semiconductor physics and optoelectronics, a team of researchers from Skoltech—a VEB.RF group institution—and their colleagues from ITMO University and HSE University have for the first ...

18 hours ago
Phys.org / Icelandic fish 'hot tubs' reveal genetic adaptations to warming—and unexpected overeating

New research, led by the University of Glasgow reveals that adaptation to warmer waters causes fish to display a range of behavioral and biological differences, including obesity, overeating and lower metabolism.

17 hours ago
Phys.org / Unique fossil reveals the internal organs of a 245-million-year-old marine reptile

Scientists from China, Europe and the U.S., including Dr. Stephan Spiekman, a paleontologist at the State Museum of Natural History Stuttgart and the University of Hohenheim, have described a fossil of the long-necked marine ...

19 hours ago
Phys.org / In biology of cells, octopus has another trick up its sleeve

The octopus is a biological oddity. It can use tools, open jars, and its complex nervous system supports as many neurons as a small primate. Now Harvard biologists have discovered a mysterious distinction in octopuses' core ...

22 hours ago
Phys.org / Stable DNA building blocks enable faster oligonucleotide synthesis without oxidation

The chemical synthesis of oligonucleotides (ONs) is central to modern molecular biology, diagnostics and nucleic acid therapeutics. While demand for high-quality ONs is increasing, the conventional synthetic method has long-standing ...

17 hours ago
Phys.org / Gonorrhea's own enzyme triggers therapy against multidrug-resistant strains in lab tests

Scientists at the Universities of Liverpool and Oxford have developed a promising new way to kill antibiotic-resistant strains of Neisseria gonorrhoeae, the bacterium that causes gonorrhea, using a targeted therapy that is ...

19 hours ago
Phys.org / Kitchen cling film helps build centimeter-scale ultrathin electronics and optics

As materials become thinner—now reaching the thickness of single atoms—it has become increasingly difficult to create sufficiently large sheets and transfer them without cracking them into tiny flakes. Recent work by a broad ...

19 hours ago