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Wednesday, September 7, 2011

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Milky Way galaxy might hold thousands of ticking 'time bombs'

Posted: 06 Sep 2011 12:24 PM PDT

In the Hollywood blockbuster "Speed," a bomb on a bus is rigged to blow up if the bus slows down below 50 miles per hour. The premise -- slow down and you explode -- makes for a great action movie plot, and also happens to have a cosmic equivalent. New research shows that some old stars might be held up by their rapid spins, and when they slow down, they explode as supernovae. Thousands of these "time bombs" could be scattered throughout our Galaxy.

Microbes generate electricity while cleaning up nuclear waste

Posted: 06 Sep 2011 11:45 AM PDT

Researchers have unraveled the mystery of how microbes generate electricity while cleaning up nuclear waste and other toxic metals. The implications could eventually benefit sites forever changed by nuclear contamination.

Innovation is step toward digital graphene transistors

Posted: 06 Sep 2011 11:40 AM PDT

Researchers are making progress in creating digital transistors using a material called graphene, potentially sidestepping an obstacle thought to dramatically limit the material's use in computers and consumer electronics.

Innovative nanoparticle purification system uses magnetic fields

Posted: 06 Sep 2011 11:40 AM PDT

A team of scientists has invented a new system that uses magnetism to purify hybrid nanoparticles. The system holds the promise of helping to improve drug-delivery systems, drug-targeting technologies, medical-imaging technologies, and electronic information-storage devices.

Sharper views of Apollo 12, 14, 17 sites in new images from NASA’s Lunar Reconnaissance Orbiter

Posted: 06 Sep 2011 10:58 AM PDT

Researchers overseeing the imaging system on board NASA's Lunar Reconnaissance Orbiter have released the sharpest images ever taken from space of the Apollo 12, 14 and 17 sites, more clearly showing the paths made when the astronauts explored these areas.

Breakthrough could double wireless capacity with no new towers

Posted: 06 Sep 2011 10:40 AM PDT

Engineering researchers have made a breakthrough that could allow wireless phone companies to double throughput on their networks without adding a single cell tower. The new "full-duplex" technology allows wireless devices like cell phones and electronic tablets to both "talk" and "listen" to wireless cell towers on the same frequency -- something that requires two frequencies today.

Neutron analysis reveals unique atom-scale behavior of 'cobalt blue'

Posted: 06 Sep 2011 10:40 AM PDT

Neutron scattering studies of "cobalt blue," a compound prized by artists for its lustrous blue hue, are revealing unique magnetic characteristics that could answer questions about mysterious properties in other materials.

Novel magnetic, superconducting material opens new possibilities in electronics

Posted: 06 Sep 2011 09:19 AM PDT

Scientists have reached a crucial milestone that could lead to a new class of materials with useful electronic properties. A research team has sandwiched two nonmagnetic insulators together and discovered a startling result: The layer where the two materials meet has both magnetic and superconducting regions -- two properties that normally can't co-exist.

Foam that lasts and lasts and lasts, and disappears when you want

Posted: 06 Sep 2011 06:26 AM PDT

There's nothing special about foaming soap solutions; however, a soap foam that lasts several months, even at 60°C, is unusual. Especially if the foam is made from a natural substance and can quickly be destroyed or restored only by changing ambient temperature. This research allows for new applications that will be of interest to manufacturers of cosmetics and detergents.

Neutrinos: Ghostly particles with unstable egos

Posted: 06 Sep 2011 05:54 AM PDT

Neutrinos are known to be able to change their "flavors," or identities. But the rules that these fundamental particles follow when they alter their identity are not completely understood. A new study now suggests a non-zero value for one of the parameters governing the oscillation of neutrinos. Finding this neutrino property could ultimately help explain why matter formed in the early Universe.

Growing meat in the lab: Scientists initiate action plan to advance cultured meat

Posted: 06 Sep 2011 05:51 AM PDT

An international group of scientists recently took a step closer to their goal to produce cultured meat, during a workshop in Sweden. Many technology components are now coming into place in order to realize the concept of cultured meat. This includes a cell source that is possible to use, several alternative processes to turn these cells into muscle cells for meat, and nutrients free of animal components which can be produced from sunlight and carbon dioxide.

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