Researchers in Rhode Island, Colorado, and Massachusetts have analyzed the stain patterns left behind by coffee droplets on a surface and are presenting their "coffee ring" models today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA -- work that promises to help devise new microphysics tools.
To researchers at the California Institute of Technology, the undulations of the simple invertebrate jellyfish hold secrets that may make possible a new generation of tiny pumps for medical applications and soft robotics -- work described today at the American Physical Society Division of Fluid Dynamics (DFD) meeting in Long Beach, CA.
New research from the University of South Florida suggests that one of the evolutionary secrets of the shark hides in one of its tiniest traits -- flexible scales on their bodies that allow them to change directions while moving at full speed. This work presented today at the American Physical Society’s Division of Fluid Dynamics (DFD) annual meeting in Long Beach, CA.
Magnetic fluid hyperthermia (MFH) is a promising new cancer treatment that essentially "fries" cells inside tumors. As described today at the American Physical Society Division of Fluid Dynamics (DFD) meeting in Long Beach, CA, when the nanoparticles are heated, cancer cells die with no adverse effects to the surrounding healthy tissue.
Researchers in Baltimore, MD and Belgium have developed a model to calculate the optimal spacing of wind turbines for the very large wind farms of the future. They will present their work today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA.
A systematic study of phase changes in vanadium dioxide has solved a mystery that has puzzled scientists for decades, according to researchers at the Department of Energy’s Oak Ridge National Laboratory.
Using hyperthermia, Virginia Tech engineering researchers and a colleague from India unveiled a new method to target and destroy cancerous cells. The research was presented at the 63rd annual meeting of the American Physical Society Nov. 23 in Long Beach, Calif.
New video analysis and mathematical modeling by engineers at Virginia Tech reveals how certain types of snakes can "fly" by flinging themselves off their perches, flattening their bodies, and sailing from tree to tree -- work presented today at the American Physical Society Division of Fluid Dynamics (DFD) meeting in Long Beach, CA.
Lessons learned from the ocean's largest mammals have inspired United States Naval Academy researchers to tackle one of the serious design challenges facing a technology that uses underwater turbines to convert ocean tides into electricity -- work present today at the American Physical Society’s Division of Fluid Dynamics (DFD) meeting in Long Beach, CA.
New ideas for enhancing the efficiency of wind turbines are being presented today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA. These include a new type intelligent system for turbines operating under many different wind conditions and a way to reduce drag on turbine blades by covering them with tiny grooves.
Engineers at Princeton University have built a robotic jump rope device and used it to study the underlying physics of jumping rope, which they describe today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA.
Researchers at Stanford University are using MRI to improve jet engine efficiency -- work described today at the American Physical Society Division of Fluid Dynamics (DFD) meeting in Long Beach, CA. The technique could also provide insights into other fluid mixing problems, ranging from combustion to the flow of oil through porous rock in a well.
Airplanes do not look much like birds, but should they? This question is exactly what a pair of engineers in California and South Africa inadvertently answered recently in experiments they describe today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA.
A team of scientists at Harvard University has reproduced many of the characteristics of real bird song with a simple physical model made of a rubber tube -- work presented today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA.
Hummingbirds rank among the world’s most accomplished hovering animals, but how do they manage it in gusty winds? A team of researchers has built a robotic hummingbird wing to discover the answer, which they describe today at the American Physical Society Division of Fluid Dynamics meeting in Long Beach, CA.
A mechanical model of human vocal folds and new observations by researchers at George Washington University may lead to new devices to help people afflicted with vocal fold paralysis -- as described today at the American Physical Society Division of Fluid Dynamics (DFD) meeting in Long Beach, CA.
The University of New Hampshire is now home to a wind tunnel that is the largest of its type in the world. At 300 feet long, the facility will help engineers and scientists better understand the aerodynamics of situations such as atmospheric wind over the ocean, the flow of air over a commercial airplane or of sea water over a submarine.
While our direct knowledge of black holes in the universe is limited to what we can observe from thousands or millions of light years away, a team of Chinese physicists has proposed a simple way to design an artificial electromagnetic black hole in the laboratory -- described in the Journal of Applied Physics.
When vapor bubbles form and collapse in fluids moving swiftly over steel objects such as those inside fuel pumps, they can damage them. Now an article in the journal Physics of Fluids by researchers in Indiana details the results of the first detailed experiments aimed at preventing cavitation damage in jet fuel pumps, which are essential components in modern aircraft.
The 63rd Annual Meeting of the American Physical Society's (APS) Division of Fluid Dynamics (DFD) takes place this month from November 21-23, 2010 at the Long Beach Convention Center, located in downtown Long Beach, California. The largest scientific conference of its type, the meeting brings together thousands of researchers from around the globe to present work in engineering, energy, astronomy, medicine, and more -- all related to different forms of fluid flow.
Researchers at MIT, Virginia Tech and Princeton University analyzed the way domestic and big cats lap and found that felines of all sizes take advantage of a perfect balance between two physical forces. The results will be published in the November 11 online issue of the journal Science.
A Foucault pendulum is a simple device for observing the Earth’s rotation. While such pendulums have been around for more than 150 years and are a staple of the modern science museum, they are generally large and unwieldy. Now a group of researchers from Argentina has developed a new type of compact pendulum, which they describe in the journal Review of Scientific Instruments.
Researchers in Maryland have proposed a scheme for detecting a concealed source of radioactive material without searching containers one by one. The concept, described in the Journal of Applied Physics, is based on the gamma-ray emission from the radioactive material that would pass through the shipping container walls and ionize the surrounding air.
Microscopically porous polymer membranes have numerous applications in microfluidics, where they can act as filters, masks for surface patterning, and even as components in 3D devices. In the AIP journal Biomicrofluidics, chemist in Hong Kong describe a simple new method to fabricate free-standing polymer membranes with neatly patterned holes as small as 10 microns.
Mix two parts cornstarch and one part water. Swirl your fingers in it slowly and the mixture is a smoothly flowing liquid. Punch it quickly with your fist and you meet a rubbery solid -- so solid you can jump up and down on a vat of it. Cell membranes behave the same way.
Tin may seem like the most unassuming of elements, but experiments performed at the Department of Energy's Oak Ridge National Laboratory are yielding surprising properties in extremely short-lived isotopes near tin-100's "doubly magic" nucleus.
Beating the flu has always been tough, but it has gotten even more difficult in recent years. Two of the four antiviral drugs used to treat a nasty case of the influenza A virus no longer work.
Over the past decade, a team of scientists in Maryland have been working to stop the threat of terrorist-based attacks in the form of explosives or explosive-based devices, by providing a sound measurement and standard infrastructure.
Vikas Berry, assistant professor of chemical engineering, has spent three years researching graphene, a form of carbon that is only one atom thick.
A team of researchers in North Carolina has discovered that lubricin, a synovial fluid glycoprotein, reduces wear to bone cartilage, a result that has implications for the treatment of osteoarthritis.
Just as landscape photographs shot in low-angle light dramatically accentuate subtle swales and mounds, depositing metal vapors at glancing angles turns a rough surface into amazing nanostructures with a vast range of potential properties.
Researchers in Washington State have developed a way to study the effects of supercritical carbon dioxide on minerals commonly found in potential underground storage sites, helping to evaluate one strategy for minimizing the impacts of greenhouse gases on global warming.
A groundbreaking new equation developed in part by researchers at the University of Michigan could do for organic semiconductors what the Shockley ideal diode equation did for inorganic semiconductors: help to enable their wider adoption.
Micro-scaled photovoltaic devices may one day be used to deliver chemotherapeutic drugs directly to tumors, rendering chemotherapy less toxic to surrounding tissue.
Scientists in New Mexico are working on a new type of antimicrobial surface that won’t harm people or animals but is inhospitable to methicillin-resistant Staphylococcus aureus (MRSA) -- the bacterial cause of an estimated 19,000 deaths and $3-4 billion in healthcare costs per year in the U.S.
In a laboratory in Ohio, an ongoing experiment is looking at why batteries lose their ability to hold a charge as they age -- specifically lithium-ion batteries, which have generated a lot of buzz for their potential to power the electric cars of the future.
In remote, rural areas of southwestern China, villagers cook and dry their clothes by burning pieces of coal they pick up off the ground. This fuel releases a toxin that may be poisoning millions of people, according to an ongoing investigation by researchers in New York and China.
A research group in Australia is working on techniques to permanently bind antibacterial coatings to medical devices by binding them to a polymer layer.
Researchers at Shanxi University in China have announced progress in understanding the single-molecule magnet, which combines the classical macroscale properties of a magnet with the quantum properties of a nanoscale entity -- as described in the Journal of Applied Physics.
Chinese researchers, reporting in the Journal of Applied Physics, have described a new breakthrough in understanding the way electrons travel around quantum dots. This might lead to promising new fabrication methods of novel quantum devices.
A group of researchers at Korea's Gwangju Institute of Science and Technology has demonstrated an optimal combination of materials and processing for a resistive memory circuit design -- described in the journal Applied Physics Letters.
The long-held dream of creating atomically precise three-dimensional structures in a manufacturing environment is approaching reality, according to the top scientist at a Texas company making tools aimed at that ambitious goal.
Researchers at NIST have demonstrated for the first time the conversion of single photons produced by a true quantum source to a near-visible wavelength. The ability to change the color of single photons may aid in the development of hybrid quantum systems for applications in quantum communication, computation and metrology.
Researchers from NIST and the German national metrology institute have used NIST's miniature atom-based magnetic sensor to successfully track a human heartbeat, confirming the device's potential for biomedical applications.
Researchers used Einstein’s famous E=mc2 equation and the Large Hadron Collider to recreate a miniature version of the event at the origins of our Universe, and the first findings from their work were published in the journal Physical Review Letters.
Formerly unrealized defect results in clumping and unwanted chemical interactions.
An international team of researchers has discovered a new class of highly electronegative chemical species called hyperhalogens, which use superhalogens as building blocks around a metal atom. The new chemical species may have application in many industries.
THE 2010 NOBEL PRIZE IN PHYSICS will be awarded to Andre Geim and Konstantin Novoselov of the University of Manchester, U.K. for their pioneering work with graphene, a single-atom-thick sheet of carbon. Discovered in 2004 by Geim and his colleagues, graphene is an extraordinary and versatile material.
University of Oregon scientists have invented a method to change the color of single photons in a fiber optic cable. The laser-tweaked feat could be a quantum step forward for transferring and receiving high volumes of secured data for future generations of the Internet.
Research reported in the Journal of Chemical Physics describes a technique that analyzes the reflection of neutrons to locate buckyballs within composite materials. The work, conducted by scientists at the National Institute of Standards and Technology, may lead to more effective research on photovoltaic devices.
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