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Flight is Greener than Driving

April 27, 2015 | by Univ. of Michigan | Comments

Flying in a plane is not only safer than driving a car, it's also better for the environment. In follow-up research from last year, a study found that it takes twice as much energy to drive than to fly.

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X-ray images from recent National Ignition Facility implosion experiments compare two shots with different thickness ablators, demonstrating the improvement in shape. Both shots used deuterium-tritium fuel and were fired at 350 terawatts of ultraviolet la

Thinner capsules yield faster implosions

April 27, 2015 1:03 pm | by Charlie Osolin, Lawrence Livermore National Laboratory | Comments

In National Ignition Facility (NIF) inertial confinement fusion (ICF) experiments, the fusion fuel implodes at a high speed in reaction to the rapid ablation, or blow-off, of the outer layers of the target capsule. To reach the conditions needed for ignition, the fuel must implode symmetrically at a peak velocity of about 350 kilometers per second—without producing hydrodynamic instabilities that can dampen the fusion reactions.

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Researchers have captured the first 3-D video of a living algal embryo turning itself inside out, from a sphere to a mushroom shape and back again. The results could help unravel the mechanical processes at work during a similar process in animals, which

Upside down and inside out

April 27, 2015 12:53 pm | by University of Cambridge | Comments

Researchers have captured the first 3-D video of a living algal embryo turning itself inside out, from a sphere to a mushroom shape and back again. The results could help unravel the mechanical processes at work during a similar process in animals, which has been called the “most important time in your life.”

Researchers have captured the first 3-D video of a living algal embryo turning itself inside out, from a sphere to a mushroom shape and back again. The results could help unravel the mechanical processes at work during a similar process in animals, which

Upside down and inside out

April 27, 2015 12:53 pm | by University of Cambridge | Comments

Researchers have captured the first 3-D video of a living algal embryo turning itself inside out, from a sphere to a mushroom shape and back again. The results could help unravel the mechanical processes at work during a similar process in animals, which has been called the “most important time in your life.”

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Juejun Hu and colleagues developed a way to embed very thin glass photonic devices such as flexible microdisk resonators and waveguides in alternating layers of soft and stiff polymers. Their flexible plastic device sustained being bent thousands of times

Bendable glass devices

April 27, 2015 12:43 pm | by Denis Paiste, MIT | Comments

A special class of glass materials known as chalcogenide glasses holds promise for speeding integration of photonic and electronic devices with functions as diverse as data transfer and chemical sensing. Juejun "JJ" Hu, the Merton C. Flemings Assistant Professor in Materials Science and Engineering, is finding new ways to deploy these glasses with surprising flexibility.

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A microplasma is created by focusing intense laser pulses in air. Besides visible light, the microplasma emits electromagnetic pulses at terahertz frequencies that can be used to detect complex molecules, such as explosives and drugs. Courtesy of J. Adam

Generating broadband terahertz radiation from a microplasma in air

April 27, 2015 12:32 pm | by University of Rochester | Comments

Researchers have shown that a laser-generated microplasma in air can be used as a source of broadband terahertz radiation. They demonstrate that an approach for generating terahertz waves using intense laser pulses in air—first pioneered in 1993—can be done with much lower power lasers, a major challenge until now.

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Melting material in preparation for producing a new type of magnet

Ames Laboratory scientists create cheaper magnetic material for cars, wind turbines

April 27, 2015 12:21 pm | by Ames Laboratory | Comments

Karl A. Gschneidner and fellow scientists at Ames Laboratory have created a new magnetic alloy that is an alternative to traditional rare-earth permanent magnets. The new alloy—a potential replacement for high-performance permanent magnets found in automobile engines and wind turbines—eliminates the use of one of the scarcest and costliest rare earth elements, dysprosium, and instead uses cerium, the most abundant rare earth.

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Northwestern scientists develop first liquid nanolaser

April 27, 2015 12:12 pm | by Megan Fellman, Northwestern University | Comments

Northwestern University scientists have developed the first liquid nanoscale laser. And it’s tunable in real time, meaning you can quickly and simply produce different colors, a unique and useful feature. The laser technology could lead to practical applications, such as a new form of a “lab on a chip” for medical diagnostics.

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3-D Method Aids Study of Proteins

April 27, 2015 11:08 am | by Universitat Autònoma de Barcelona | Comments

Researchers have developed AGGRESCAN3D, a new computational method which allows studying the structure of folded globular proteins and their propensity for forming toxic protein aggregates.

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Coral-inhabiting Gall Crab Species Discovered

April 27, 2015 11:00 am | by Pensoft Publishers | Comments

Fieldwork in Indonesia and Malaysia lead to the discovery of a new coral-dwelling gall crab. The new gall crab, named Lithoscaptus semperi, was discovered inhabiting free-living corals of the species Trachyphyllia geoffroyi on sandy bottoms near coral reefs.

Device Weighs, Images Individual Molecules

April 27, 2015 10:43 am | by Caltech | Comments

Building on their creation of the first-ever mechanical device that can measure the mass of individual molecules, one at a time, a team of scientists have created nanodevices that can also reveal their shape. Such information is crucial when trying to identify large protein molecules or complex assemblies of protein molecules.

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Research Reveals Structures of Gold Nanoparticles

April 27, 2015 10:31 am | by Univ. of Nebraska–Lincoln | Comments

They may deal in gold, atomic staples and electron volts rather than cement, support beams and kilowatt-hours, but chemists have drafted new nanoscale blueprints for low-energy structures capable of housing pharmaceuticals and oxygen atoms. New research has revealed four atomic arrangements of a gold nanoparticle cluster.

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Controversial Telescope's Website Hacked

April 27, 2015 10:19 am | by Associated Press | Comments

An apparent cyberattack Sunday temporarily disrupted the main website of Thirty Meter Telescope, the organization trying to construct one of the world's largest telescopes near the summit of Mauna Kea on Hawaii's Big Island.

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In-line Holography Sheds Light on Fiery Fuels

April 27, 2015 10:11 am | by Sandia National Laboratories | Comments

Transportation accidents, such as trucks crashing on a highway or rockets failing on a launch pad, can create catastrophic fires. It’s important to understand how burning droplets of fuel are generated and behave in those extreme cases, so researchers have developed 3-D measurement techniques based on digital in-line holography.

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Power Outages Limit Tech’s Ability to Help People Connect After Quake

April 27, 2015 10:06 am | by Associated Press, Foster Klug | Comments

Power outages and communications problems have made life agonizing for the nearly 6 million Nepalese who live abroad— or about 22 percent of the population. They try desperately to reach loved ones through cellphones and global messaging apps, only to be met with silence or fleeting connections. The impoverished country’s communications have been shaken back to a different era.

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Daniel Wilson Ph.D. researcher with UAV and drogue

Sky-high refuelling for UAVs

April 24, 2015 11:13 am | by Univ. of Sydney | Comments

A Univ. of Sydney researcher has designed and successfully tested a method for autonomously docking drones for refueling or recharging, in mid-air. He used a combination of precise measurements from an infrared camera, with GPS and inertial sensors to allow the sky-high docking to occur.

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