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Using physics to improve root canal efficiency

Scientists used computational fluid dynamics to determine the effect of temperature on root canal cleaning efficiency. Higher temperatures can, to a point, improve cleansing, but this benefit falls off if the temperature ...

Droplet spread from humans doesn't always follow airflow

The World Health Organization has warned that aerosol transmission of COVID-19 is being underestimated. If aerosol spread is confirmed to be significant, as suspected, we will need to reconsider guidelines on social distancing, ...

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 ...

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Soft Matter
Superfuids may merge via corkscrew mechanism
General Physics
Reconfigurable structure and tunable transport in synchronized active spinner materials
General Physics
Bubbles go with the flow: Simulating behavior of fluids moving through pipes
General Physics
Jets of bacteria carry microscopic cargo
Soft Matter
Water-balloon physics is high-impact science
General Physics
Researchers unlock secrets to swimming efficiency of whales, dolphins for next-gen underwater robots
General Physics
Distortion isn't a drag on fluid-straddling particles
Soft Matter
Rethinking a century of fluid flows
Condensed Matter
Lights, camera, action... the super-fast world of droplet dynamics
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
Predicting hydraulic fracture propagation more accurately
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

Other news

Space Exploration
Aurora mysteries unlocked with NASA's THEMIS mission
Earth Sciences
Study rewrites the recent history of productive Cascade Arc volcanoes
Materials Science
Versatile new material family could build realistic prosthetics, futuristic army platforms
Archaeology & Fossils
Traces of ancient life tell story of early diversity in marine ecosystems
Environment
Native trees thrive in teak plantations and may protect the Panama Canal
General Physics
Searching for Heavy Higgs bosons decaying into two tau leptons with the ATLAS detector
General Physics
Black silicon photodetector breaks the 100% efficiency limit
Nanophysics
A light bright and tiny: Scientists build a better nanoscale LED
Archaeology & Fossils
200,000 years ago, humans preferred to sleep in beds
Earth Sciences
Reconstructing global climate through Earth's history
Nanophysics
Stabilizing monolayer nitrides with silicon
Plants & Animals
Marine food webs under increasing stress
Space Exploration
Simulations show lander exhaust could cloud studies of lunar ices
Materials Science
Uranium reveals its true nature
Plants & Animals
Changes in climate and land cover affecting European migratory bird populations
Environment
How people and ecosystems fit together on the Great Barrier Reef
Condensed Matter
A superelastic alloy with a nearly limitless temperature window
Biotechnology
Nanoparticles to immunize plants against heat stress
Superconductivity
Investigation of five-layered cuprate reveals Fermi pockets
Materials Science
Practical solution for preventing corrosive buildup in nuclear systems