Macquarie University PhD student Dimitri Douchin, and his adviser Orsola De Marco have played a pivotal role in the latest discovery of a new planetary nebula.
(PhysOrg.com) -- Macquarie University PhD student Dimitri Douchin, and his adviser Orsola De Marco have played a pivotal role in the latest discovery of a new planetary nebula.
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Warfare, triggered by political conflict between the fifth century B.C. and the first century A.D., likely shaped the development of the first settlement that would classify as a civilization in the Titicaca basin of southern Peru, a new UCLA study suggests.
Latex paints and drug suspensions such as insulin or amoxicillin that do not need to be shaken or stirred may be possible thanks to a new understanding of how particles separate in liquids, according to Penn State chemical engineers, who have developed a method for predicting the way colloidal components separate based on energy.
(PhysOrg.com) -- Writing in the journal Nature Physics, the academics, who discovered the world's thinnest material at The University of Manchester in 2004, have revealed more about its electronic properties.
(PhysOrg.com) -- Metamaterials researchers Yaroslav Urzhumov and David Smith, working at Duke University have built a simulation of an object that can move through water without leaving a trace and claim it's a concept that could be built and used in the real world provided more research is done. In their paper, published on arXiv, the two describe how they programmed the use of metamaterials applied to an object, along with tiny water pumps, into a model to simulate an actual object moving through water without dragging some of the water with it that would normally cause turbulence.
(PhysOrg.com) -- Hong Kong physicists say they have proved that a single photon obeys Einstein's theory that nothing can travel faster than the speed of light -- demonstrating that outside science fiction, time travel is impossible.
Researchers at Columbia Engineering School have demonstrated that light can travel on an artificial material without leaving a trace under certain conditions, technology that would have many applications from the military to telecommunications.
For modern biologists, the ability to capture high-quality, three-dimensional (3D) images of living tissues or organisms over time is necessary to answer problems in areas ranging from genomics to neurobiology and developmental biology. The better the image, the more detailed the information that can be drawn from it. Looking to improve upon current methods of imaging, researchers from the California Institute of Technology (Caltech) have developed a novel approach that could redefine optical imaging of live biological samples by simultaneously achieving high resolution, high penetration depth (for seeing deep inside 3D samples), and high imaging speed.
Experiments at the world's biggest atom smasher have yielded tantalising hints that a long-sought sub-atomic particle truly exists, with final proof likely by late 2012, physicists said Monday.
Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have observed a new way that magnetic and electric properties — which have a long history of ignoring and counteracting each other — can coexist in a special class of metals. These materials, known as multiferroics, could serve as the basis for the next generation of faster and energy-efficient logic, memory, and sensing technology.
(PhysOrg.com) -- As early communications systems using quantum cryptography become commercially available, physicists have been investigating new types of security attacks in an effort to defend against them. In a recent study, researchers have identified and demonstrated a new, highly effective way to eavesdrop on a quantum key distribution (QKD) system that involves blinding the receiver’s detector during the "dead time" of single-photon detectors. For the first time, the eavesdropper does not even have to intercept the quantum channel to compromise the system’s security, making this attack technologically very simple.
(AP) -- Exxon Mobil Corp. will have to bring in more people to mop up oil from a broken pipeline beneath the Yellowstone River as receding floodwaters reveal new contamination, federal officials said Friday.
The US State Department said Friday it expects by mid-August to release a final environmental impact statement on a proposed $13 billion oil pipeline that would stretch from Canada to Texas.
In the battle against the state’s prolonged and brutal drought, Texas Tech University agricultural researchers have released two new farmer-friendly computer tools that save scarce irrigation water and boost bottom lines for parched producers.
One of the strangest types of galaxies are those known as ring galaxies. Examples of these include Hoag’s Object (shown above), the Cartwheel Galaxy, and AM 0644-741. These unusual shapes are cause by a galactic collision in which a smaller galaxy plunges nearly straight through the center of a larger galaxy. The gravitational disturbance caused a wave of star formation to ripple out from the center. In most cases, the intruder galaxy is long gone, but a serendipitous discovery as part of a larger survey recently turned up another of these objects, this time with the collisional partner still making its getaway.
Southwest Research Institute (SwRI) announced in February that it had contracted multiple suborbital flights for its own astronaut payload specialists as part of a larger effort to promote the development of commercial human spaceflight. Preparations for these flights are proceeding and will be flown on a combination SwRI manifest of XCOR Lynx I and Virgin Galactic SpaceShip 2 vehicles. The Lynx I missions will reach altitudes of about 200,000 feet; the SpaceShip 2 missions will reach altitudes near 350,000 feet.
Delphis (Del) Levia, associate professor of geography at the University of Delaware, has always loved trees. Growing up on his parents' 93-acre farm in central Massachusetts, he and his brothers and sisters played in the woods all the time, under the towering American beech, sugar maple and oak trees.
(PhysOrg.com) -- The Mars Atmosphere and Volatile EvolutioN (MAVEN) mission reached a major milestone last week when it successfully completed its Mission Critical Design Review (CDR).
(PhysOrg.com) -- The Moon puts on a great show before dawn next week as it passes by a bright star and planet, according to the editors of StarDate magazine.
The Northwest Forest Plan enacted in 1993 was designed to conserve old-growth forests and protect species such as the northern spotted owl, but researchers conclude in a new study that it had another powerful and unintended consequence – increased carbon sequestration on public lands.
It's not often that a satellite can capture an image of more than one tropical cyclone, but the GOES-13 satellite managed to get 3 tropical cyclones in two ocean basins in one image today. Bret and his "sister" Cindy are racing through the North Atlantic, while another area tries to develop far to their south. "Cousin" Dora is still a hurricane in the eastern Pacific.
(AP) -- It may have been the final big official event of the last space shuttle mission, but a welcome-home and thank-you party for the crew of Atlantis Friday wasn't dwelling on any sad ending.
A giant new Russian space telescope on Saturday unfurled its dish-like antenna which will observe radio waves from galaxies and black holes billions of light years away.
When the next-generation Mars rover, dubbed Curiosity, touches down on martian soil next summer, its cameras will likely capture a scene similar to what the first explorers of the Grand Canyon witnessed: towering layers of rock and sediment rising up from a dusty valley.
(PhysOrg.com) -- Fires throughout Ontario are generating pollution that is showing up in data from NASA's Aura Satellite in the Great Lakes region.
One model of a hypothetical multiverse has, perhaps appropriately, some similarity to a glass of beer. Imagine an eternal false vacuum – that’s a bit like a fluid, though not all that much like a fluid – since it doesn’t have volume, in fact it doesn’t have any spatial dimensions. Then imagine that this eternal false vacuum expands.
Soil quality, water quality, and possibly even farm profits will all benefit by using a perennial cover crop on corn fields that allows for similar yields to traditional farming methods, according to Iowa State University research.
The tenth tropical depression formed in the western North Pacific Ocean this past weekend, and brought rains to the central Philippines as seen on infrared imagery from a NASA satellite.
A Chinese submersible embarked on what the crew hoped would be the country's deepest manned dive ever Tuesday, state media reported, as it seeks to exploit the vast resources of the ocean floor.
With the space shuttle now history, NASA's next great mission is so audacious, the agency's best minds are wrestling with how to pull it off: Send astronauts to an asteroid in less than 15 years.
"Dirty Dozen" chemicals, including the notoriously toxic DDT, are being freed from Arctic sea ice and snow through global warming, a study published on Sunday suggested.
An international team of researchers has combined data from multiple sources to provide the clearest account yet of how much glacial ice surges into the sea following the collapse of Antarctic ice shelves.
Now that the space shuttle is retired, NASA and space agencies around the world will focus on the International Space Station for the rest of this decade - and cross their fingers that it lasts that long.
The Mobile Meteorological Measurement Vehicle - a worn-looking '90s-model Dodge Intrepid with classic rock on the radio, a tower of weather gauges attached to its roof and a laptop computer bolted to its dash - crested a rolling hill on its way to tiny Hackleburg, Ala.
Climate change in the Greater Yellowstone Ecosystem will increase the frequency of wildfires and alter the composition of the forests by 2050, according to a team of ecologists who modeled the effects of higher temperatures on fire occurrence.
(PhysOrg.com) -- Analysis of new images of a curious “hot spot” on the far side of the Moon reveal it to be a small volcanic province created by the upwelling of silicic magma. The unusual location of the province and the surprising composition of the lava that formed it offer tantalizing clues to the Moon’s thermal history.
Supramolecules comprising many kinds of proteins and nucleic acids are present in all living organisms. Often with precise structures and a variety of parts, these supramolecules exhibit complex movements and exhaustive functions, essentially behaving like nanomachines. “How do these tiny supramolecular nanomachines work in the bodies of living organisms? I want to know the mechanism behind their actions,” says Koji Yonekura, associate chief scientist of the Biostructural Mechanism Laboratory in the Photon Science Research Division of the RIKEN SPring-8 Center. Because function is closely related to form, the action mechanism cannot be understood without clarifying the conformations of the components of supramolecules. Yonekura is working to develop new techniques such as cryo-electron microscopy to elucidate the action mechanism behind these supramolecular nanomachines. The wonder of the flagellum
Research scientists at the Ruhr University Bochum discovered a new enzyme, which gives decisive insights into protein import into specific cellular organelles (peroxisomes). In the Journal of Biological Chemistry, the team of Prof. Erdmann (Medical Faculty, Department of Systemic Biochemistry) reports that the enzyme Ubp15p collaborates with two other proteins to convert the protein transport machinery back into its initial condition after work has been completed.
Flying in the face of years of scientific belief, University of Illinois researchers have demonstrated that sugar doesn't melt, it decomposes.
A new strategy to quantify the levels of titanium in the blood of patients fitted with titanium orthopaedic implants is presented in Analytical and Bioanalytical Chemistry, a Springer journal. Yoana Nuevo-Ordóñez and colleagues of the Sanz-Medel research group from the University of Oviedo in Spain have developed a highly sensitive method to determine the levels of titanium in human blood, establishing a baseline for natural levels of titanium in untreated individuals as well as measuring levels in patients with surgical implants.
(PhysOrg.com) -- Scientists at Pacific Northwest National Laboratory's Center for Molecular Electrocatalysis and Villanova University designed a nickel-based complex that more than doubled previously reported hydrogen gas production rates and increased the energy efficiency of the reaction. Additionally, the team found that adding water to the reaction significantly increased the reaction speed. As a result of the discoveries, researchers are closer to finding energy storage solutions for surplus energy generated from green technologies.
Methods for distinguishing between authentic and counterfeit Scotch whisky brands have been devised by scientists at the University of Strathclyde in Glasgow.
In an advance that could open new avenues for solar cells, lasers, metamaterials and more, researchers at the University of Illinois have demonstrated the first optoelectronically active 3-D photonic crystal.
Glucose meters aren't just for diabetics anymore. Thanks to University of Illinois chemists, they can be used as simple, portable, inexpensive meters for a number of target molecules in blood, serum, water or food.
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