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Tuesday, October 4, 2011

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News

Electricity from the nose: Engineers make power from human respiration

Posted: 03 Oct 2011 08:46 PM PDT

The same piezoelectric effect that ignites your gas grill with the push of a button could one day power sensors in your body via the respiration in your nose.

'Mirage-effect' helps researchers hide objects

Posted: 03 Oct 2011 04:52 PM PDT

Scientists have created a working cloaking device that not only takes advantage of one of nature's most bizarre phenomenon, but also boasts unique features; it has an "on and off" switch and is best used underwater.

Saturn's geyser moon Enceladus shows off for NASA's Cassini

Posted: 03 Oct 2011 04:10 PM PDT

NASA's Cassini spacecraft successfully completed its Oct. 1 flyby of Saturn's moon Enceladus and its jets of water vapor and ice. At its closest approach, the spacecraft flew approximately 62 miles (100 kilometers) above the moon's surface. The close approach was designed to give some of Cassini's instruments, including the ion and neutral mass spectrometer, the chance to "taste" the jets themselves.

Engineers build smart petri dish: Device can be used for medical diagnostics, imaging cell growth continuously

Posted: 03 Oct 2011 12:18 PM PDT

The cameras in our cell phones have dramatically changed the way we share the special moments in our lives, making photographs instantly available to friends and family. Now, the imaging sensor chips that form the heart of these built-in cameras are helping engineers transform the way cell cultures are imaged by serving as the platform for a "smart" petri dish.

A robot brain implanted in a rodent

Posted: 03 Oct 2011 10:24 AM PDT

With new cutting-edge technology aimed at providing amputees with robotic limbs, a researcher has successfully implanted a robotic cerebellum into the skull of a rodent with brain damage, restoring its capacity for movement.

Polymeric material has potential for noninvasive procedures

Posted: 03 Oct 2011 10:24 AM PDT

Scientists have developed what they believe to be the first polymeric material that is sensitive to biologically benign levels of near infrared irradiation, enabling the material to disassemble in a highly controlled fashion. The study represents a significant milestone in the area of light-sensitive material for non-invasive medical and biological applications.

Researchers transform iPhone into high-quality medical imaging device

Posted: 03 Oct 2011 10:22 AM PDT

In a feat of technology tweaking that would rival MacGyver, a team of researchers has transformed everyday iPhones into medical-quality imaging and chemical detection devices. With materials that cost about as much as a typical app, the decked-out smartphones are able to use their heightened senses to perform detailed microscopy and spectroscopy.

When water and air meet: New light shed on mysterious structure of world's most common liquid interface

Posted: 03 Oct 2011 10:22 AM PDT

New findings have resolved a long-standing debate over the structure of water molecules at the water surface. The research combines theoretical and experimental techniques to pinpoint, for the first time, the origin of water's unique surface properties in the interaction of water pairs at the air-water interface.

Gravitational waves that are 'sounds of the universe'

Posted: 03 Oct 2011 06:44 AM PDT

Einstein wrote about them, and we're still looking for them -- gravitational waves, which are small ripples in the fabric of space-time, that many consider to be the sounds of our universe. Just as sound complements vision in our daily life, gravitational waves will complement our view of the universe taken by standard telescopes.

Dawn at Vesta: Massive mountains, rough surface, and old-young dichotomy in hemispheres

Posted: 03 Oct 2011 06:33 AM PDT

NASA's Dawn mission, which has been orbiting Vesta since mid-July, has revealed that the asteroid's southern hemisphere boasts one of the largest mountains in the System. Other results show that Vesta's surface, viewed at different wavelengths, has striking diversity in its composition particularly around craters. The surface appears to be much rougher than most asteroids in the main asteroid belt. Preliminary results from crater age dates indicate that areas in the southern hemisphere are as young as 1-2 billion years old, much younger than areas in the north.

Two early stages of carbon nanotube growth discovered

Posted: 03 Oct 2011 05:05 AM PDT

Orderly rows of neatly aligned carbon nanotubes have served as the standard for nanotechnology researchers. But physicists now report the discovery of two early stages of carbon nanotube growth that produce tangled or semi-aligned tubes with characteristics that could lend themselves to thermal management and other applications.

First images from ALMA telescope: Hidden star-formation in Antennae Galaxies revealed

Posted: 03 Oct 2011 05:04 AM PDT

First visualizations of ALMA test data are made public with unprecedented views of once-hidden star-formation in the colliding galaxy pair, the Antennae.

Exotic quantum states: A new research approach

Posted: 03 Oct 2011 04:55 AM PDT

Theoretical physicists have formulated a new concept to engineer exotic, so-called topological states of matter in quantum mechanical many-body systems. They linked concepts of quantum optics and condensed matter physics and show a direction to build a quantum computer which is immune against perturbations.
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