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How to get rid of the coffee-stain effect

The coffee-stain effect is a well-known effect in physics and daily life in which a dark-colored edge remains when a fluid containing particles evaporates. This is caused by an "avalanche" of particles moving to the outer ...

Flushing toilets create clouds of virus-containing particles

Researchers used a computer simulation to show how a flushing toilet can create a cloud of virus-containing aerosol droplets that is large and widespread and lasts long enough that the droplets could be breathed in by others.

Excitons form superfluid in certain 2-D combos

Mixing and matching computational models of 2-D materials led scientists at Rice University to the realization that excitons—quasiparticles that exist when electrons and holes briefly bind—can be manipulated in new and ...

Research reveals how material defects influence melting process

In 1972, physicists J. Michael Kosterlitz and David Thouless published a groundbreaking theory of how phase changes could occur in two-dimensional materials. Experiments soon showed that the theory correctly captured the ...

Blood flows could be more turbulent than previously expected

Blood flow in the human body is generally assumed to be smooth due to its low speed and high viscosity. Unsteadiness in blood flow is linked to various cardiovascular diseases and has been shown to promote dysfunction and ...

Double bubbles pierce with less trouble

Two microscopic bubbles are better than one at penetrating soft materials, concludes a new study by engineers at the University of California, Riverside.

Bubble dynamics reveal how to empty bottles faster

Bottle emptying is a phenomenon most of us have observed while pouring a beverage. Researchers from the Indian Institute of Technology Roorkee discovered how to make bottles empty faster, which has wide-ranging implications ...

Researchers unveil the universal properties of active turbulence

Turbulent flows are chaotic yet feature universal statistical properties.Over the recent years, seemingly turbulent flows have been discovered in active fluids such as bacterial suspensions, epithelial cell monolayers, and ...

Models explain changes in cooking meat

Meat is no ordinary solid. Made up of complex networks of moisture-saturated proteins, it displays some intriguing physical properties when it is cooked. Several studies in the past have attempted to recreate this behaviour ...

Superfuids may merge via corkscrew mechanism

Scientists at the Florida State University-headquartered National High Magnetic Field Laboratory have made a discovery in fluid dynamics that is truly worth uncorking a bottle of fine wine.

Jets of bacteria carry microscopic cargo

It is a longstanding challenge to be able to control biological systems to perform specific tasks. In a paper published in Nature Physics, researchers at the Niels Bohr Institute, University of Copenhagen, in collaboration ...

Water-balloon physics is high-impact science

Water balloons may seem like a trivial matter. A toy for mischievous kids in summer. But for scientists, the behavior of balls of liquid wrapped in a thin elastic membrane is critical to everything from understanding blood ...

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General Physics
Distortion isn't a drag on fluid-straddling particles
Soft Matter
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Soft Matter
How are microbes attracted to an oil spill?
Soft Matter
Simulations show effects of buoyancy on drift in Florida Current
Soft Matter
But what about flow? The effect of hydrodynamics on liquid-liquid transitions
Soft Matter
Spider-Man-style robotic graspers defy gravity
Soft Matter
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Soft Matter
Reducing the risk of blood clots in artificial heart valves
Soft Matter
Scientists develop gentle, microscopic hands to study tiny, soft materials
Soft Matter
Discovering a new fundamental underwater force
General Physics
Industrial bread dough kneaders could use physics-based redesign
Soft Matter
Injection of magnetizable fluid could extend trauma patients' survival time
Soft Matter
Research sheds light on the underlying mechanics of soft filaments
Soft Matter
Century-old food testing method updated to include complex fluid dynamics
General Physics
Engineers exploit the repeating structure of turbulence to create a more complete model of the phenomenon
Soft Matter
American whiskey found to leave distinctive 'fingerprint' when it evaporates
Soft Matter
Pre-programmed microfluidic systems offer new control capabilities
Soft Matter
Computer models show clear advantages in new types of wind turbines

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Environment
Heatwave trends accelerate worldwide
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Scientific 'red flag' reveals new clues about our galaxy
General Physics
New breakthrough in 'spintronics' could boost high speed data technology
Archaeology & Fossils
Experts find early ocher mine in Mexican underwater caves
Optics & Photonics
Toward lasers powerful enough to investigate a new kind of physics
Nanomaterials
Harvesting hydrogen from nanogardens
Plants & Animals
Industrial 'borrow pits' benefit beavers and wolverines, study shows
Astronomy
Image: Hubble captures one galaxy, two asteroids
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'Fang'tastic: Biologists report snake-like dental glands in amphibians
Superconductivity
Toward super-fast motion of vortices in superconductors
Astronomy
Rare-metal abundance points to a missing companion star for the supernova Cassiopeia A
Nanomaterials
Enhancing the performance of solar cells with 'graphene armor'
Archaeology & Fossils
New species of Ichthyosaur discovered in museum collection
Molecular & Computational biology
Histone H3-H4 tetramer found to be a copper reductase enzyme
Ecology
More ecosystem engineers create stability, preventing extinctions
Plants & Animals
How old is your dog in human years? Scientists develop better method than 'multiply by 7'
Materials Science
Scientists dissociate water apart efficiently with new catalysts
General Physics
Researchers observe branched flow of light for the first time
Nanomaterials
The lightest electromagnetic shielding material in the world
Astronomy
Discovery of a luminous galaxy reionizing the local intergalactic medium 13 billion years ago