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Saturday, August 25, 2012

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Rapid-scanning microscope with no loss of quality

Posted: 24 Aug 2012 05:57 PM PDT

Scientists have developed a rapid-scanning microscope with no loss of quality.

Good diet, proper exercise help protect astronauts’ bones

Posted: 24 Aug 2012 10:19 AM PDT

Eating right and exercising hard in space helps protect International Space Station astronauts' bones, a finding that may help solve one of the key problems facing future explorers heading beyond low Earth orbit.

Superior fuel cell material developed

Posted: 24 Aug 2012 07:30 AM PDT

Using a mixture of gold, copper and platinum nanoparticles, researchers have developed a more powerful and longer lasting fuel cell material.

Flat lens offers a perfect image

Posted: 24 Aug 2012 06:35 AM PDT

Applied physicists have created an ultrathin, flat lens that focuses light without imparting the distortions of conventional lenses. It operates at telecom wavelengths -- i.e., those used for fiber-optics -- and is scalable to a wider range.

Simplified approach for high-power, single-mode lasers

Posted: 24 Aug 2012 06:35 AM PDT

Researchers have developed a new resonator that creates the purest, brightest, and most powerful single-mode quantum cascade lasers yet at the eight-12 micron range, a wavelength of great interest for both military and industrial use.

Modeling metastasis

Posted: 24 Aug 2012 06:34 AM PDT

A technique used by animators helps scientists model how cancer cells enter the bloodstream.

Joining 'unjoinable' materials: New polymer linking technology based on nano crystals

Posted: 24 Aug 2012 05:25 AM PDT

Ever tried to paint on top of silicone? After a few hours, the paint will peel off. Annoying. Silicone is a so-called low surface energy polymer, well known from flexible baking forms: A synthetic material that has an extremely low adhesion or "stickiness." Teflon is similarly non-sticky and well known from frying pans. Researchers have now developed the first technology which is capable of joining these two "unjoinable" materials. The technology applies passive nano-scaled crystal linkers as internal staples.

Virus detector harnesses ring of light in 'whispering gallery mode'

Posted: 24 Aug 2012 05:19 AM PDT

By affixing nanoscale gold spheres onto a microscopic bead of glass, researchers have created a super-sensor that can detect even single samples of the smallest known viruses. The sensor uses a peculiar behavior of light known as "whispering gallery mode," named after the famous circular gallery in St. Paul's Cathedral in London, where a whisper near the wall can be heard around the gallery.

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