ScienceDaily: Top Technology News

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• Cloaking magnetic fields: First antimagnet developed
• Controlling silicon evaporation allows scientists to boost graphene quality
• New targets for the control of HIV predicted using a novel computational analysis
• Saturn's moon Enceladus spreads its influence
• Ceramics researchers shed light on metal embrittlement
• Nanoscale nonlinear light source optical device can be controlled electronically
• Scientists observe how superconducting nanowires lose resistance-free state
• Like fish on waves, electrons go surfing
• New metal hydride clusters provide insights into hydrogen storage
• From the comfort of home, web users may have found new planets

Cloaking magnetic fields: First antimagnet developed Posted: 22 Sep 2011 04:20 PM PDT Spanish researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from leaking outside, making the cloak undetectable.

Controlling silicon evaporation allows scientists to boost graphene quality Posted: 22 Sep 2011 03:00 PM PDT Scientists have for the first time provided details of their "confinement controlled sublimation" technique for growing high-quality layers of epitaxial graphene on silicon carbide wafers.

New targets for the control of HIV predicted using a novel computational analysis Posted: 22 Sep 2011 03:00 PM PDT Over 25 years of intensive research have failed to create a vaccine for preventing HIV. A new computational approach has predicted numerous human proteins that the human immunodeficiency virus requires to replicate itself -- "a powerful resource for experimentalists who desire to discover new targets."

Saturn's moon Enceladus spreads its influence Posted: 22 Sep 2011 11:43 AM PDT Chalk up one more feat for Saturn's intriguing moon Enceladus. The small, dynamic moon spews out dramatic plumes of water vapor and ice -- first seen by NASA's Cassini spacecraft in 2005. It possesses simple organic particles and may house liquid water beneath its surface. Its geyser-like jets create a gigantic halo of ice, dust and gas around Enceladus that helps feed Saturn's E ring. Now, thanks again to those icy jets, Enceladus is the only moon in our solar system known to influence substantially the chemical composition of its parent planet.

Ceramics researchers shed light on metal embrittlement Posted: 22 Sep 2011 11:20 AM PDT Liquid metal embrittlement, or LME, has baffled metallurgists for a century. Now, ceramics researchers have obtained atomic-scale images of unprecedented resolution of the grain boundaries, or internal interfaces, where LME occurs.

Nanoscale nonlinear light source optical device can be controlled electronically Posted: 22 Sep 2011 11:19 AM PDT By harnessing plasmonics to intensify light, engineers have created an ultra-compact nonlinear light source that shrinks a large-scale, high-energy device to the nanoscale with research implications ranging from data communications to a better understanding of fundamental science.

Scientists observe how superconducting nanowires lose resistance-free state Posted: 22 Sep 2011 08:42 AM PDT Physicists have measured the temperatures at which collections of electrons build up enough heat to force regions along superconducting aluminum nanowires to switch to a non-superconducting state. The information could help engineers build more reliable nanowires and more efficient nano-electronics.

Like fish on waves, electrons go surfing Posted: 22 Sep 2011 06:37 AM PDT Physicists have succeeded in taking a decisive step towards the development of more powerful computers. They were able to define two little quantum dots (QDs), occupied with electrons, in a semiconductor and to select a single electron from one of them using a sound wave, and then to transport it to the neighboring QD.

New metal hydride clusters provide insights into hydrogen storage Posted: 22 Sep 2011 06:37 AM PDT A new study has shed light on a class of heterometallic molecular structures whose unique features point the way to breakthroughs in the development of lightweight fuel cell technology. The structures contain a previously-unexplored combination of rare-earth and d-transition metals ideally suited to the compact storage of hydrogen.

From the comfort of home, web users may have found new planets Posted: 22 Sep 2011 06:33 AM PDT Since the online citizen science project Planet Hunters launched last December, 40,000 web users from around the world have been helping professional astronomers analyze the light from 150,000 stars in the hopes of discovering Earth-like planets orbiting around them.

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