Simulating microswimmers in nematic fluids
New research shows how control over self-propelled microswimmers could be achieved using exotic materials named 'nematic liquid crystals' - whose viscosity and elasticity can vary depending on the direction of an applied force......»»
Lab earthquakes show how grains at fault boundaries lead to major quakes
By simulating earthquakes in a lab, Caltech engineers have provided strong experimental support for a form of earthquake propagation now thought responsible for the magnitude-9.0 earthquake that devastated the coast of Japan in 2011......»»
New nanoparticles aid sepsis treatment in mice
Sepsis, the body's overreaction to an infection, affects more than 1.5 million people and kills at least 270,000 every year in the U.S. alone. The standard treatment of antibiotics and fluids is not effective for many patients, and those who survive.....»»
Rocket Engine Exhaust Pollution Extends High Into Earth"s Atmosphere
The American Institute of Physics reports via Phys.Org: In Physics of Fluids, researchers from the University of Nicosia in Cyprus assessed the potential impact of a rocket launch on atmospheric pollution by investigating the heat and mass transfer a.....»»
These Nanobots Can Swim Around a Wound and Kill Bacteria
Researchers have created autonomous particles covered with patches of protein “motors.” They hope these bots will tote lifesaving drugs through bodily fluids......»»
Investigating Earth"s interior using the distribution of electrical conductivity and density in the crust
Knowledge about the structure and composition of the Earth's crust is important for understanding the dynamics of the Earth. For example, the presence or absence of melt or fluids plays a major role in plate tectonic processes. Most our knowledge in.....»»
"Polaroids" help scientists detect hazardous ice on airplane plating
Researchers from Skoltech, MIPT, Russia's State Research Institute of Civil Aviation, the University of North Texas, and York University have simplified and automated the lab procedure used to test anti-icing fluids that ensure safe aircraft takeoff......»»
Simulating supernova remnants, star formation in earthbound lab
Molecular clouds are collections of gas and dust in space. When left alone, the clouds remain in their state of peaceful equilibrium......»»
Growth-climate sensitivity of two pine species varies with site-specific environmental conditions
A better understanding of tree growth-climate sensitivity across regions and species may reduce uncertainties in simulating forest carbon budgets. However, few studies have explored the growth-climate sensitivity of different tree species in Southwes.....»»
Scientists develop environmentally safe, frost-resistant coatings
Airports are busy, especially during the winter. As passengers wait to board, delays get longer when airplanes need to be dowsed with thousands of gallons of deicing fluids that help them fight the frigid winter. But as soon as the plane takes off, m.....»»
New study of how bacteria swim could help prevent the spread of disease and improve medical treatments
For years, science fiction authors have written about the idea of using microswimmers that could perform surgeries or deliver medicines to humans. Now, a team led by University of Minnesota Twin Cities researchers discovered how bacteria swim through.....»»
Most face masks don"t expose wearers to harmful levels of PFAS, study says
Face masks are important for slowing the spread of COVID-19 and protecting against smoke. Per- and polyfluoroalkyl substances (PFAS) are added to many products to repel fluids, but their presence in face masks hasn't been thoroughly studied. Now, res.....»»
CMIP6 models have improved in simulating sea surface salinity and freshwater flux
Salinity changes the ocean stratification by affecting the density, which has a certain impact on the thermodynamic processes of the ocean, and then modulates sea surface salinity variations. With the development of numerical models in recent years,.....»»
Simulating outer space in a beamline provides insight into ice formation in extreme environments
Extreme conditions—severe pressure, intense temperatures, and high levels of radiation— exist all over the earth and beyond. Scientists are using the Canadian Light Source (CLS) at the University of Saskatchewan (USask) to investigate how water a.....»»
TikTok keeps recommending live "simulated sex" videos to users
Have you seen the latest TikTok trend? You know, those livestreams.The live videos in question involve a user, typically a young, clothed woman, simulating sex. The problem with the videos is that they're being pushed to users who are not consenting.....»»
Running quantum software on a classical computer
Physicists have introduced an approach for simulating the quantum approximate optimization algorithm using a traditional computer. Instead of running the algorithm on advanced quantum processors, the new approach uses a classical machine-learning alg.....»»
DeepMind AI rivals average human competitive coder
After simulating 10 contests, with more than 5,000 participants, AlphaCode has ranks in the top 54%......»»
Study unveils a Moiré nematic phase in twisted double bilayer graphene
Moiré superlattices are systems in which two sheets of a material are placed on top of each other with a small angle misalignment, resulting in a characteristic pattern known as the Moiré pattern. In recent years, many physicists and material scien.....»»
Simulation models exercise, age effects on plaque formation in arteries
Plaque formation in the arteries carrying blood to the head and neck is a serious medical problem, potentially leading to strokes and heart attacks. In Physics of Fluids, engineers from China use fluid dynamics simulations to study the effect of exer.....»»
Study: Leidenfrost effect occurs in all three water phases: Solid, liquid, and vapor
But there's a much higher threshold of 550° C for levitation of an ice disk to occur. Slow-motion video of boiling ice, a research project of the Nature-Inspired Fluids and Interfaces Lab at Virginia Tech. Dash a few drops of water onto.....»»
An Injection of Chaos Solves a Decades-Old Fluid Mystery
In the 1960s, drillers noticed that certain fluids would firm up if they flowed too fast. Researchers have finally explained why......»»