Scientists find simple liquids fracture like solids under stress

Kiswahili

Researchers at Drexel University have discovered that certain viscous liquids can snap apart like solids when stretched with sufficient force. The finding, detailed in a study published in Physical Review Letters, challenges traditional views of fluid dynamics by linking the behavior to viscosity rather than elasticity. This phenomenon was observed in simple liquids such as tar-like hydrocarbons and styrene oligomer.

Thamires Lima, an assistant research professor at Drexel's College of Engineering, and Nicolas Alvarez, a professor there, led the research in collaboration with ExxonMobil Technology & Engineering Company. During extensional rheology tests, the team stretched tar-like hydrocarbon blends and noticed they fractured abruptly at a critical stress of 2 megapascals, producing a loud snapping noise captured on high-speed camera. Lima described the moment: 'The fracture caused a very loud snapping noise that actually startled me. I thought at first the machine had broken, but soon realized that the noise came from the stretching fluid.'

Makala yanayohusiana

Lab scene depicting contactless magnetic friction discovery: hovering metallic blocks with magnetic fields and graphs breaking Amontons' law.
Picha iliyoundwa na AI

Researchers discover contactless magnetic friction

Imeripotiwa na AI Picha iliyoundwa na AI

Scientists at the University of Konstanz have identified a new type of sliding friction that occurs without physical contact, driven by magnetic interactions. This phenomenon breaks Amontons' law, a 300-year-old physics principle, by showing friction peaks at certain distances rather than increasing steadily with load. The findings appear in Nature Materials.

Physicists observe superfluid freezing into supersolid state

Researchers have witnessed a superfluid in graphene halt its motion, transitioning into a supersolid—a quantum phase blending solid-like order with frictionless flow. This breakthrough, achieved in bilayer graphene under specific conditions, challenges long-held assumptions about quantum matter. The findings, published in Nature, mark the first natural observation of such a phase without artificial constraints.

Researchers discover stationary atoms in molten metals

Imeripotiwa na AI

Scientists have observed atoms that remain motionless within liquid metals at high temperatures, influencing how materials solidify. Using advanced microscopy, researchers from the University of Nottingham and the University of Ulm captured this phenomenon in molten metal nanoparticles. The finding reveals a new hybrid state of matter with potential implications for catalysis and materials engineering.

Sayansi

Florida State scientists engineer crystal with swirling magnetic patterns

Sayansi

Mathematicians unify fluid physics laws after 125 years

Sayansi

Physicist develops formula for crêpe folding limits

Electrons lose particle-like behavior yet enable topological states

Researchers at TU Wien have uncovered a material where electrons no longer act like distinct particles, yet it still exhibits topological properties thought to require such behavior. This discovery in the compound CeRu₄Sn₆ challenges long-held assumptions in quantum physics. The findings suggest topological states are more universal than previously believed.

UCLA chemists challenge century-old rule with distorted molecules

Imeripotiwa na AI

Researchers at the University of California, Los Angeles, have synthesized cage-shaped molecules featuring unusually warped double bonds, defying long-held principles of organic chemistry. This breakthrough builds on their 2024 overturning of Bredt's rule and could influence future drug design. The findings appear in Nature Chemistry.

Physicists uncover hidden order in high-energy proton collisions

Researchers have discovered that entropy remains constant during the transition from a chaotic quark-gluon state to stable particles in proton collisions at the Large Hadron Collider. This unexpected stability serves as a direct signature of quantum mechanics' unitarity principle. The finding, based on refined models and LHC data, challenges initial intuitions about the process's disorder.

Superionic water's structure proves messier than expected

Imeripotiwa na AI

Scientists have uncovered a more complex atomic arrangement in superionic water, a form that likely powers the magnetic fields of Uranus and Neptune. This exotic state emerges under extreme pressures and temperatures, conducting electricity like a partial liquid within a solid framework. The discovery, from lab experiments mimicking planetary interiors, challenges prior models and refines understanding of ice giants.

Jumanne, 24. Mwezi wa tatu 2026, 01:35:56

NYU physicists create sound-levitated time crystal breaking Newton's third law

Jumamosi, 7. Mwezi wa tatu 2026, 07:02:50

Physicists confirm predicted magnetic vortices in atom-thin material

Jumanne, 24. Mwezi wa pili 2026, 18:14:00

Scientists uncover cause of screeching Scotch tape

Jumapili, 8. Mwezi wa pili 2026, 04:15:19

Physicists resolve quantum mystery on heavy particle behavior

Jumapili, 1. Mwezi wa pili 2026, 09:22:13

Scientists observe quantum geometry bending electrons like gravity

Alhamisi, 15. Mwezi wa kwanza 2026, 03:25:57

Foam bubbles exhibit learning-like motion similar to artificial intelligence

Alhamisi, 8. Mwezi wa kwanza 2026, 04:07:04

Physicists create perfect conductor from ultracold atoms

Jumatatu, 5. Mwezi wa kwanza 2026, 12:28:44

Scientists reveal molecular handshake in liquids via laser spectroscopy

Jumanne, 23. Mwezi wa kumi na mbili 2025, 03:28:48

Physicists recreate Josephson junction with ultracold atoms

Jumatano, 17. Mwezi wa kumi na mbili 2025, 11:17:47

Scientists solve decades-old quantum mystery in spin liquid

 

 

 

Tovuti hii inatumia vidakuzi

Tunatumia vidakuzi kwa uchambuzi ili kuboresha tovuti yetu. Soma sera ya faragha yetu kwa maelezo zaidi.
Kataa