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Wednesday, April 18, 2012

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


New process improves catalytic rate of enzymes by 3,000 percent

Posted: 17 Apr 2012 12:27 PM PDT

Light of specific wavelengths can be used to boost an enzyme's function by as much as 30 fold, potentially establishing a path to less expensive biofuels, detergents and a host of other products.

Nanocrystal-coated fibers might reduce wasted energy

Posted: 17 Apr 2012 11:38 AM PDT

Researchers are developing a technique that uses nanotechnology to harvest energy from hot pipes or engine components to potentially recover energy wasted in factories, power plants and cars.

Nanotube electrodes improve solar cells

Posted: 17 Apr 2012 09:56 AM PDT

Forests of carbon nanotubes are an efficient alternative for platinum electrodes in dye-sensitized solar cells, according to new research.

Some stars capture rogue planets

Posted: 17 Apr 2012 08:36 AM PDT

New research suggests that billions of stars in our galaxy have captured rogue planets that once roamed interstellar space. The nomad worlds, which were kicked out of the star systems in which they formed, occasionally find a new home with a different sun. This finding could explain the existence of some planets that orbit surprisingly far from their stars, and even the existence of a double-planet system.

Cognitive biometrics: A very personal login

Posted: 17 Apr 2012 08:35 AM PDT

Retina and iris scans, fingerprint and palm logins rely on possession of unique anatomical characteristics that you cannot forget as you might a password. A new review examines alternative approaches to user authentication.

Panoramic view of a turbulent star-making region

Posted: 17 Apr 2012 07:20 AM PDT

Several million stars are vying for attention in a new image of a raucous stellar breeding ground in 30 Doradus, located in the heart of the Tarantula nebula.

Asteroid craters on Earth give clues in search for life on Mars

Posted: 17 Apr 2012 05:05 AM PDT

Craters made by asteroid impacts may be the best place to look for signs of life on other planets, a study suggests.

Hot new manufacturing tool: A temperature-controlled microbe

Posted: 17 Apr 2012 05:05 AM PDT

Scientists have found a way to control a heat-loving microbe with a temperature switch: it makes a product at low temperatures but not at high temperatures. The innovation could make it easier to use microorganisms as miniature factories for the production of needed materials like biofuels.

Magnetic fields can send particles to infinity

Posted: 17 Apr 2012 05:03 AM PDT

Researchers have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping. One of the conditions is that the field is generated by current loops situated on the same plane. At the moment this is a theoretical mathematical study, but researchers have recently demonstrated that, in certain conditions, magnetic fields can send particles to infinity.

70-year-old chemical mystery solved: How tropolone are synthesized in fungi

Posted: 16 Apr 2012 12:44 PM PDT

Chemists and biologists have finally cracked one of the longest standing chemical mysteries. They have demonstrated exactly how an unusual class of compounds known as tropolones are synthesized in fungi.

Economic damage to US economy from offshoring jobs may be exaggerated

Posted: 16 Apr 2012 12:01 PM PDT

Sending jobs overseas may not be as damaging to the U.S. economy as commonly believed, according to a new study.

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