Last update Arming drug hunters, chemists design new reaction for drug discovery, 1 hour ago
Viscoelastic fluids are everywhere, whether racing through your veins or through 1,300 kilometers of pipe in the Trans-Alaska Pipeline. Unlike Newtonian fluids, such as oil or water, viscoelastic fluids stretch like a sticky ...
To break out of Earth's lower orbit, hypersonic vehicles must reach speeds greater than Mach 5. At these hypersonic speeds, the air particles and gases that flow around the vehicle and interact with the surfaces generate ...
Washington State University researchers for the first time have shown that they can use electrical fields to gain valuable information about the tiny, floating vesicles that move around in animals and plants and are critically ...
Yong Wang, assistant professor of physics, and graduate student Asmaa Sadoon have been studying how molecules travel through bacterial cytoplasm in order to understand more about how these tiny organisms function. Using new ...
You've probably seen them, perhaps on long roadtrips: wind turbines with enormous, hypnotic rolling blades, harnessing the clean power of wind for conversion into electric energy. What you may not know is that for the explosion ...
Scientists have created miniature magnetic swimming devices – which mimic the appearance of sperm cells – that could revolutionise disease treatment by swimming drugs to specific areas of the body.
The earth's rotation causes the Coriolis effect, which deflects massive air and water flows toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This phenomenon greatly impacts global ...
The more complex the object, the harder it is to fold up. Space satellites often need many small motors to fold up an instrument, and people have difficulty simply folding up a roadmap. Physicists from Leiden and Amsterdam ...
Can the topology of microobjects influence the way they move in a fluid? Experiments and simulations of Polish and Swiss researchers published in the Physical Review Letters show that the dynamics of elastic chains settling ...
Surf's up for microbes swimming beside red blood cells.
Researchers from Tokyo Metropolitan University have studied how microswimmers, like bacteria or sperm, swim through fluids with both solid and liquid-like properties, e.g., gels. They found that subtle changes in a swimmer's ...
High-performance computing resources and data-driven machine learning help University of Stuttgart researchers model how coal, nuclear and geothermal power plants could be retrofitted for cleaner, safer, and more efficient ...
An everyday occurrence spotted when we turn on the tap to brush our teeth has baffled engineers for centuries—why does the water splay when it hits the sink before it heads down the plughole?
Swimming bacteria can reduce the viscosity of ordinary liquids like water and make them flow more easily, sometimes down to the point where the viscosity becomes zero: the flow is then frictionless.
Atomizing liquids is vital to fuel-air mixing. Using oscillating liquid streams, breakup and drop formation can be improved compared to common straight jets. But the many dynamic interactions make it difficult for scientists ...
Researchers from Tokyo Metropolitan University have observed the formation of holes that move by themselves in droplets of ionic liquids (IL) sitting inside water-ethanol mixtures. This complex phenomenon is driven by an ...
Blood spatter can provide a lot of informanulltion to an investigator at a crime scene. Unfortunately, current methods do not tell the whole story. UIC Distinguished Professor Alexander Yarin and his colleagues have shown ...
Many fish species swim in schools and birds fly in flocks. Such collective behaviour must arise from the interactions between the animals. How it works was largely unclear. Now, two Wageningen-researchers provide important ...
You may never have heard of the capillary effect, but it's something you deal with every time you wipe up a spill or put flowers in water. Wouter van der Wijngaart has spent most of his life contemplating this phenomenon, ...
Each time a blood vessel splits into smaller vessels, red blood cells (RBCs) are presented with the same decision: Take the left capillary or the right. While one might think RBCs would divide evenly at every fork in the ...
A research team from the Research Institute of Mechanics, MSU together with a colleague from the Center of New Space Technologies, MAI described the behavior of a liquid sheet propagating in open space. The results of the ...
Lucio Isa and his team of researchers have explained how the surface characteristics of microspheres affect rapid increases in the viscosity of suspensions, thus laying the groundwork for applications such as smoothly flowing ...
Crescent dunes and meandering rivers can "forget" their initial shapes as they are carved and reshaped by wind and water while other landforms keep a memory of their past shape, suggests a new laboratory analysis by a team ...
Researchers at Utah State University are sending cascades of water into a tank to uncover a mystery of fluid dynamics.
A group of scientists from MSU, Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, and Juelich Research Center have described the mechanism of appearance of an inertial lift force ...
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The shape of water. Can it tell us about what drives romance? Among fish, it might. Eva Kanso, a professor of Aerospace and Mechanical Engineering at the USC Viterbi School of Engineering studies fluid flows and almost like ...
Now scientists have shown that when the objects are squishy instead of solid, the reverse is true. The journal Physical Review E published the findings by physicists at Emory University, demonstrating that when soft particles ...
On your next stroll through the woods, take a look at the dew droplets hanging from the leaves. If you see moisture on a cypress or juniper tree with their distinct bifurcated leaves, you'll likely see those water droplets ...
Scraped up knees and elbows are tricky places to securely apply a bandage. More often than not, the adhesive will peel away from the skin with just a few bends of the affected joint.
Rice University scientists have discovered what may be the simplest form of locomotion in the travels of micron-scale particles linked and driven by a magnetic field.
In a jet engine, the flow of air is slowed down to increase the temperature and pressure for combustion—burning fuel with the right ratio of fuel and air to conquer drag allows for acceleration.
Bioreactors are widely used to produce different therapeutics in the biopharmaceutical and regenerative medicine industries. Drug development relies on small multi-well plates shaken around an orbital diameter, while production-scale ...
A day at the beach beset by heavy clouds, or the sticky heat of a salty haze can seem like the work of large, unpredictable forces. But behind such atmospheric phenomena are billions of tiny interactions between the air and ...
Whether a fluid is flowing through household plumbing or industrial oil and gas pipelines, when it runs slowly its flow is smooth, but when it runs quickly its flow is more chaotic.
Researchers at Swansea University's Complex Flow Lab have been exploring the intricate shapes that emerge when air is injected into soil. Published in Physical Review Applied, these findings could one day be used to speed ...
An algorithm that improves simulations of turbulent flows by enabling the accurate calculation of a parameter called skin friction has been developed by KAUST researchers in collaboration with researchers at the California ...
Researchers from Tokyo Metropolitan University, have recently discovered unusual thermal convection in a uniform mixture of high- and low-viscosity liquids. Kobayashi and Kurita found that concentration fluctuations are enhanced ...
Dr Martin Sweatman from the University of Edinburgh's School of Engineering has discovered a simple physical principle that might explain how life started on Earth.
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while simultaneously helping it avoid detection.
Researchers from the University of Queensland and Monash University in collaboration with ANSTO scientists have clarified how behaviour of tailorable nanoscale emulsions (TNEs) interact with their targets is directed by the ...
One of the most prominent publications in physics, Physical Review X, accepted an article by Sangwoo Shin, a University of Hawaiʻi at Mānoa assistant professor in mechanical engineering. The article is titled Accumulation ...
A vortex in the atmosphere can churn with enough power to create a typhoon. But more subtle vortices form constantly in nature. Many of them are too small to be seen with the naked eye.
Rhythmic patterns and precise motions—these are key elements of proper swimming. Olympians demonstrate repeated patterns of breathing, with synchronized head, leg and arm movements, enthralling spectators and provoking ...
If pharmaceutical chemists are the drug hunters who discover new medicines, scientists like Andrew McNally and Robert Paton are the armorers—the deft creators who arm drug hunters with the sharpest tools.
Genetically engineered microbes such as bacteria and yeasts have long been used as living factories to produce drugs and fine chemicals. More recently, researchers have started to combine bacteria with semiconductor technology ...
Alarming examples of the dangers from chemical weapons have been seen recently in the use of industrial chemicals and the nerve agent sarin against civilians in Syria, and in the targeted assassination operations using VX ...
Inspired by the extraordinary characteristics of polar bear fur, lotus leaves and gecko feet, engineering researchers have developed a new way to make arrays of nanofibers that could bring us coatings that are sticky, repellant, ...
The gut bacteria of four Himalayan populations differ based on their dietary lifestyles, according to a new study by researchers at the Stanford University School of Medicine and their collaborators.
An analysis of Twitter data from the U.S. shows that social media usage largely mirrors daily work schedules and school calendars. The data reflect the amount of "social jet lag" caused when social demands make people wake ...
Helmet-heads of the freshwater fish world, African mormyrid fishes are known for having a brain-to-body size ratio that is similar to humans.
A pair of researchers with the University of St Andrews has observed orangutan mothers engaging in displaced reference after observation of a perceived threat. In their paper published in the journal Science Advances, Adriano ...
Wherever there's water, there's bound to be bubbles floating at the surface. From standing puddles, lakes, and streams, to swimming pools, hot tubs, public fountains, and toilets, bubbles are ubiquitous, indoors and out.
A study using animal-attached technology to measure food consumption in four very different wild vertebrates has revealed that animals using a high-risk strategy to find rarer food are particularly susceptible to becoming ...
The sight or smell of something delicious is often enough to get your mouth watering, but the physiological response to food perception may go well beyond your salivary glands. New research in mice shows that the sight and ...
Astronomers may have finally uncovered the long-sought progenitor to a specific type of exploding star by sifting through NASA Hubble Space Telescope archival data and conducting follow-up observations using W. M. Keck Observatory ...
Malaria parasites know good times from bad and plan their offspring accordingly, scientists have found, in a development that could inform new treatments.
Scientists at Scripps Research have discovered that a mysterious family of cellular proteins called OSCAs and TMEM63s are a novel class of mechanosensitive ion channels.
Killer whales display personality traits similar to those of humans and chimpanzees, such as playfulness, cheerfulness and affection, according to new research published by the American Psychological Association.
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg/Germany presents evidence of the amplification of optical phonons ...
A team of researchers at Dalhousie University has found evidence that suggests hemimastigotes represent a major new branch of evolutionary life. In their paper published in the journal Nature, the group describes their genetic ...
An antibiotic called thanatin attacks the way the outer membrane of Gram-negative bacteria is built. Researchers at the University of Zurich have now found that this happens through a previously unknown mechanism. Thanatin, ...
A team of researchers from ETH Zürich, Cardiff University, Istituto Nazionale di Geofisica e Vulcanologia and Sapienza-Università di Roma has found evidence that suggests Campi Flegrei could be re-entering a phase of pressure ...
ETH material researchers are developing a method with which they can coat droplets with controlled interfacial composition and coverage on demand in an emulsion in order to stabilise them. In doing so they are fulfilling ...
The Atacama Desert, the driest and oldest desert on Earth, located in northern Chile, hides a hyper-arid core in which no rain has been recorded during the past 500 years. But this situation has changed in the last three ...
Many materials exhibit new properties when in the form of thin films composed of just a few atomic layers. Most people are familiar with graphene, the two-dimensional form of graphite, but thin film versions of other materials ...
ETH scientists have shown that the immune system's macrophages are regulated not only biochemically, but mechanically as well. This could explain why the cells are less active in healthy body tissue.
Researchers have found that a protein in the cell membranes of sperm plays a key role in how they find their way to eggs. The PMCA protein may also help explain how egg cells only interact with sperm from the same species. ...
Scientists from VIB and Ghent University under the guidance of Prof. Dr. Jenny Russinova have uncovered a novel mechanism in plants that controls an important decision step in stomatal lineage to divide asymmetrically or ...
Research led by the University of Bristol has begun to unpick an important mechanism of antibiotic resistance and suggest approaches to block this resistance.
The mesosphere, at heights between 85 and 100 kilometers above the Earth's surface, contains a layer of atomic sodium. Astronomers use laser beams to create artificial stars, or laser guide stars (LGS), in this layer for ...
Researchers in a lab at Aarhus University have developed a versatile remote gaming interface that allowed external experts as well as hundreds of citizen scientists all over the world to optimize a quantum gas experiment ...
A close study of auroras has revealed new ways of understanding the physics of explosive energy releases in space, according to new UCL-led research.
Testing by AAA shows that electronic driver assist systems on the road today may not keep vehicles in their lanes or spot stationary objects in time to avoid a crash.
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