29/08/2012

Shifty, but secure eyes

A biometric security system based on how a user moves their eyes is being developed by technologists in Finland. Writing in the International Journal of Biometrics, the team explains how a person's saccades, their tiny, but ...

Building ultra-low power wireless networks

(Phys.org)—Engineering researchers at the University of Arkansas have received funding from the National Science Foundation to create distortion-tolerant communications for wireless networks that use very little power. ...

A long-term view of critical materials: from coal to ytterbium

(Phys.org)—When Lawrence Berkeley National Laboratory scientist Frances Houle considers the national alarm that has sounded over the shortage of rare earth materials—critical ingredients in a wide range of clean-energy ...

Optical fibers in materials: an artificial nervous system

(Phys.org)—When placed inside a material, optical fibers act like artificial nerves, transmitting valuable information about a structure's state of fatigue and wear. A new technique developed at EPFL makes it possible to ...

Oil spill cleanup: Smart filter can strain oil out of water

(Phys.org)—A smart filter with a shape-shifting surface can separate oil and water using gravity alone, an advancement that could be useful in cleaning up environmental oil spills, among other applications, say its University ...

Haitians struggle with the costs associated with crime

(Phys.org)—As violent crime continues to rise in Haiti, more households are helping their children cope with the trauma as well as deal with burdensome funeral and burial costs, a new University of Michigan report indicated.

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