ScienceDaily: Top Technology News

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• In metallic glasses, researchers find a few new atomic structures
• Low-cost nanosheet catalyst discovered to split hydrogen from water
• New ultra-thin electronic films have greater capacity
• GPS for interior spaces: Navigating the shopping center
• How nature shapes the birth of stars
• Asteroid Vesta looks like a little planet, complete with craters, mountains and landslides
• New twist on ancient math problem could improve medicine, microelectronics
• Self-adapting computer network that defends itself against hackers?
• Mini-projector for smartphones
• Photonics: New approach to generating terahertz radiation will lead to new imaging and sensing applications
• Technique keeps cool high-power semiconductor devices used in wireless applications, traffic lights and electric cars

In metallic glasses, researchers find a few new atomic structures Posted: 11 May 2012 10:37 AM PDT Drawing on powerful computational tools and a state-of-the-art scanning transmission electron microscope, materials science and engineering researchers have discovered a new nanometer-scale atomic structure in solid metallic materials known as metallic glasses.

Low-cost nanosheet catalyst discovered to split hydrogen from water Posted: 11 May 2012 09:22 AM PDT Scientists have developed a new electrocatalyst that overcomes the high cost of platinum, generating hydrogen gas from water with abundant and affordable metals. The unexpected and high-performing nanosheet structure of the catalytic nickel-molybdenum-nitride compound offers a promising new model for effective hydrogen catalysis.

New ultra-thin electronic films have greater capacity Posted: 11 May 2012 09:20 AM PDT The development of a new combination of polymers associating sugars with oil-based macromolecules makes it possible to design ultra-thin films capable of self-organization with a 5-nanometer resolution. This opens up new horizons for increasing the capacity of hard discs and the speed of microprocessors.

GPS for interior spaces: Navigating the shopping center Posted: 11 May 2012 07:13 AM PDT With a GPS receiver in your smartphone, you can navigate your way over highways and streets with certainty. But once you get inside a building, it provides no further assistance. That's why researchers have engineered a navigation system for interior spaces. Thanks to a clever combination of sensors, the module tracks the movements and position of its user in precise detail.

How nature shapes the birth of stars Posted: 11 May 2012 07:12 AM PDT Using state of the art computer simulations, a team of astronomers have found the first evidence that the way in which stars form depends on their birth environment.

Asteroid Vesta looks like a little planet, complete with craters, mountains and landslides Posted: 10 May 2012 07:49 PM PDT Vesta looks like a little planet. "We didn't find gold on Vesta, but it is still a gold mine," said the principal investigator of NASA's Dawn mission. Scientists have discovered two large craters, a mountain more than twice as large as Mount Everest, and landslides, detailed in six new articles.

New twist on ancient math problem could improve medicine, microelectronics Posted: 10 May 2012 10:27 AM PDT A hidden facet of a math problem that goes back to Sanskrit scrolls has just been exposed by nanotechnology researchers.

Self-adapting computer network that defends itself against hackers? Posted: 10 May 2012 08:33 AM PDT Cybersecurity experts are researching the feasibility of building a computer network that could protect itself against online attackers by automatically changing its setup and configuration.

Mini-projector for smartphones Posted: 10 May 2012 07:00 AM PDT Their very small displays sometimes make smartphones diffi cult to operate. In the future, a projector will help: if the cell phone is standing on a table, for instance, it can project a large-format display onto the table surface. The user will have the option of operating the smartphone via the projection function or from the display screen itself.

Photonics: New approach to generating terahertz radiation will lead to new imaging and sensing applications Posted: 10 May 2012 06:56 AM PDT A new approach to generating terahertz radiation will lead to new imaging and sensing applications. The low energy of the radiation means that it can pass through materials that are otherwise opaque, opening up uses in imaging and sensing — for example, in new security scanners. In practice, however, applications have been difficult to implement.

Technique keeps cool high-power semiconductor devices used in wireless applications, traffic lights and electric cars Posted: 08 May 2012 12:21 PM PDT Engineers have developed a technique to keep cool a semiconductor material used in everything from traffic lights to electric cars.

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