02/12/2015

Conductor turned insulator amid disorder

Some materials that are inherently disordered display unusual conductivity, sometimes behaving like insulators and sometimes like conductors. Physicists have now analysed the conductivity in a special class of disordered ...

Popping microbubbles help focus light inside the body

A new technique developed at Caltech that uses gas-filled microbubbles for focusing light inside tissue could one day provide doctors with a minimally invasive way of destroying tumors with lasers, and lead to improved diagnostic ...

New stretchable, wearable sensor made with chewing gum

Body sensors, which were once restricted to doctors' offices, have come a long way. They now allow any wearer to easily track heart rate, steps and sleep cycles around the clock. Soon, they could become even more versatile—with ...

UN report takes global view of 'green energy choices'

Finding the right mix of green energy technologies for generating electricity will be crucial in reducing the global impact of pollution for the next generation, according to a United Nations report co-written by a Yale professor.

Healthful hemp poised to grow in US

The U.S. hemp industry has suffered from an association problem. Antidrug officials say distinguishing the plant from its psychoactive cousin, marijuana, is too difficult, so growing it has largely been banned. But the tide ...

Quantum computer made of standard semiconductor materials

Physicists at the Technical University of Munich, the Los Alamos National Laboratory and Stanford University (USA) have tracked down semiconductor nanostructure mechanisms that can result in the loss of stored information ...

Trapping climate pollutant methane gas in porous carbon

As talks of global warming are once again making headlines, scientists have renewed their efforts to understand how to best limit its effects. For example, sequestrating short-lived climate pollutants, such as methane and ...

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