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Saturday, May 5, 2012

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Connected traffic system for emergency responders demonstrated

Posted: 04 May 2012 02:20 PM PDT

A prototype "smart drive" connected traffic system that can clear red light signals and warn of traffic tie-ups has been completed.

Ancient volcanic blast provides more evidence of water on early Mars

Posted: 04 May 2012 10:57 AM PDT

Georgia Tech Assistant Professor Josef Dufek's new findings provide more evidence that early Mars was saturated with water and that its atmosphere was considerably thicker, at least 20 times more dense, than it is today.

Hubble to use moon as mirror to see Venus transit

Posted: 04 May 2012 10:57 AM PDT

NASA's Hubble Space Telescope will study Venus's atmosphere during an upcoming opportunity where Venus is passing in front of the Sun. Hubble cannot look at the Sun directly, so astronomers are planning to point the telescope at the Moon, using it as a mirror. The next time Venus will pass in front of the Sun will be in the year 2117.

Building better asphalt with nanoclays

Posted: 04 May 2012 10:57 AM PDT

Using nanotechnology, researchers are paving the way for brand-new asphalt blends to fight off cracks, rutting and potholes.

Why Saturday’s 'supermoon' will be beautiful, but not super

Posted: 04 May 2012 10:57 AM PDT

Yes, it will be marginally brighter and larger, but Saturday's so-called "supermoon" is not going to be noticeably different from the full moon of the month before or after. An astronomer explains that a "supermoon" typically happens once a year, when the moon's elliptical orbit comes closest to Earth during a full moon. But the nickname makes it sound like a much bigger deal than it actually is.

Light touch keeps a grip on delicate nanoparticles

Posted: 04 May 2012 08:05 AM PDT

Using a refined technique for trapping and manipulating nanoparticles, researchers have extended the trapped particles' useful life more than tenfold. This new approach, which one researcher likens to "attracting moths," promises to give experimenters the trapping time they need to build nanoscale structures and may open the way to working with nanoparticles inside biological cells without damaging the cells with intense laser light.

Using electrons to map nanoparticle atomic structures

Posted: 04 May 2012 08:04 AM PDT

Scientists have shown how a form of nanocrystallography can be carried out using a transmission electron microscope -- an instrument found in many chemistry and materials science laboratories.

Gamma ray optics: a viable tool for a new branch of scientific discovery

Posted: 04 May 2012 08:00 AM PDT

There has been a surprise discovery of 'significant' refraction of gamma rays which opens the door to nuclear photonics and the use of high energetic light beams to investigate the atomic nucleus.   Isotope specific gamma ray microscopes could remotely search for harmful nuclear materials or provide less destructive and more selective medical imaging.

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