Phys.org news

Phys.org / Protein clusters reshape cell movement and may help cells build amino acids faster

Cells can be thought of as cities, with factories, a transport system, and lots of building activity. An international team led by scientists at the University of Groningen studied cells growing under different conditions ...

7 hours ago
Phys.org / Video shows that sunbirds suck, while hummingbirds don't

Two unrelated groups of nectar eaters, hummingbirds and sunbirds, have evolved different techniques to slurp the sweet liquid from flowers. The tongue suctioning employed by sunbirds is unique among vertebrates, according ...

8 hours ago
Phys.org / Satellites reveal city methane emissions are rising faster than official estimates

Urban emissions of methane—a potent greenhouse gas—are rising faster than bottom-up accounting estimates anticipated, according to a study led by University of Michigan Engineering. The discrepancy was found with satellite ...

7 hours ago
Phys.org / From ship wakes to soft tissues: Exploring fluid and solid surface-wave physics

A new study by scientists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) shows that when a pressure disturbance moves across an ultrasoft elastic material, such as a gel or a biological tissue, ...

8 hours ago
Phys.org / Quantum sensors get a precision boost as 2D defects reveal their hidden timing

A key factor for the performance of sensors is the speed at which the system returns to its initial state after a disturbance or measurement, similar to the taring of a balance. In the quantum sensor under investigation, ...

8 hours ago
Dialog / Why do some stars in the galactic center survive while others are destroyed?

The center of our galaxy is an extreme place. Surrounding the supermassive black hole Sagittarius A*, stars are packed densely into a region where gravity, radiation, and dark matter all interact in complex ways. It is a ...

9 hours ago
Phys.org / Plants use a protein-tagging complex to control stress survival, study finds

A specific cellular mechanism regulates the protein balance of plants, thereby influencing how they respond to environmental stress. An international research team led by Dr. Markus Wirtz at the Center for Organismal Studies ...

9 hours ago
Phys.org / Tiny crystal defects solve decades-old mystery in organic light emitters

Materials that emit and manipulate light are at the heart of technologies ranging from solar energy to advanced imaging systems. But even in well-studied materials, some fundamental behaviors remain unexplained. Researchers ...

8 hours ago
Phys.org / Mount Etna breaks volcano rules, tapping 80-kilometer-deep magma in a rare fourth category of eruption

Located in Sicily, Mount Etna is Europe's most active volcano. Yet its origin remains largely enigmatic, as no existing geological model fully explains how it formed. In a new study, scientists from the University of Lausanne ...

13 hours ago
Phys.org / Designing better membrane proteins by embracing imperfection

Scientists at the VIB–VUB Center for Structural Biology have uncovered a counterintuitive principle that could reshape how membrane proteins are designed from scratch: Sometimes, making a protein less stable helps it fold ...

8 hours ago
Phys.org / New research on cellular redox reactions sheds light on the path of neurodegenerative diseases

The mechanics of the onset of cancer or neurodegenerative disorders like Alzheimer's disease or ALS remain a mystery. Scientists associate these diseases with an increase in unstable molecules called reactive oxygen species ...

8 hours ago
Phys.org / Beneath this cemetery, 5.5 million wild bees form a giant underground city vital to spring pollination

To save money, Rachel Fordyce parked her car for free at Ithaca's East Hill Plaza and walked through East Lawn Cemetery to her job as a technician in an entomology lab on Cornell's campus. One spring day in 2022, she walked ...

10 hours ago