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Thursday, August 18, 2011

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


New method can speed development of organic semiconductors for flexible displays

Posted: 17 Aug 2011 04:42 PM PDT

Researchers have not only created a new material for high-speed organic semiconductors, they have also come up with a new approach that can take months, even years, off the development timeline.

Moon younger than previously thought, analysis of lunar rock reveals

Posted: 17 Aug 2011 10:54 AM PDT

Analysis of a piece of lunar rock brought back to Earth by the Apollo 16 mission in 1972 has shown that the Moon may be much younger than previously believed. This is concluded in new research conducted by an international team of scientists that includes James Connelly from the Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen. Their work has just been published in Nature.

Physicists undo the 'coffee ring effect'

Posted: 17 Aug 2011 10:53 AM PDT

A team of physicists has shown how to disrupt the "coffee ring effect" -- the ring-shaped stain of particles leftover after coffee drops evaporate -- by changing the particle shape. The discovery provides new tools for engineers to deposit uniform coatings.

Giant space blob glows from within: Primordial cloud of hydrogen is centrally powered

Posted: 17 Aug 2011 10:09 AM PDT

Observations from ESO's Very Large Telescope have shed light on the power source of a rare vast cloud of glowing gas in the early universe. The observations show for the first time that this giant "Lyman-alpha blob" -- one of the largest single objects known -- must be powered by galaxies embedded within it.

Honeycomb carbon crystals possibly detected in space

Posted: 17 Aug 2011 09:14 AM PDT

NASA's Spitzer Space Telescope has spotted the signature of flat carbon flakes, called graphene, in space. If confirmed, this would be the first-ever cosmic detection of the material -- which is arranged like chicken wire in flat sheets that are one atom thick.

Reliability issues for carbon nanotubes in future electronics uncovered

Posted: 17 Aug 2011 07:19 AM PDT

Carbon nanotubes theoretically can carry 1,000 times more electric current than a metal conductor of the same size, so researchers hope they might replace copper wiring in future nanoscale electronics, but recent tests suggest device reliability is a major issue.

Research team achieves first 2-color STED microscopy of living cells

Posted: 17 Aug 2011 07:19 AM PDT

Current applications of STED microscopy have been limited to single color imaging of living cells and multicolor imaging in "fixed" or preserved cells. However, to study active processes, such as protein interactions, a two-color STED imaging technique is needed in living cells. This has now been achieved for the first time.

Researchers improving GPS accuracy in the third dimension

Posted: 17 Aug 2011 07:19 AM PDT

Researchers who are working to fix global positioning system (GPS) errors have devised software to take a more accurate measurement of altitude -- particularly in mountainous areas. The software is still under development, but in initial tests it enabled centimeter-scale GPS positioning -- including altitude -- as often as 97 percent of the time.

Quantum optical link sets new time records

Posted: 17 Aug 2011 06:49 AM PDT

Quantum communication could be an option for absolutely secure transfer of data. The key component in quantum communication over long distances is entanglement between two atomic systems. Entanglement is very fragile and until now researchers have only been able to maintain the entanglement for a fraction of a second. But researchers have now succeeded in maintaining the entanglement for up to an hour.

Researchers find way to align gold nanorods on a large scale

Posted: 17 Aug 2011 06:22 AM PDT

Researchers have developed a simple, scalable way to align gold nanorods, particles with optical properties that could be used for emerging biomedical imaging technologies.

New tool allows first responders to visualize post-event disaster environments

Posted: 17 Aug 2011 06:22 AM PDT

Using iPad™ mobile devices, emergency preparedness officials and first responders participating in an exercise, were able, for the first time, to make use of a new, science-based software tool that allows them to view and modify accurate models of building damage and other post-event disaster effects.

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