News tagged with sound energy

Laser physics upside down

At the Vienna University of Technology a system of coupled lasers has been created which exhibits truly paradoxical behaviour: An increase in energy supply switches the lasers off, reducing the energy can switch them on.

dateJul 15, 2014 in Optics & Photonics
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The destructive power of sound waves

Researchers at the University of Arizona College of Engineering have come up with a novel way to help the U.S. Air Force dispose of stockpiles of dangerous chemicals – using nothing more than sound waves.

dateDec 16, 2013 in General Physics
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New technology modifies music hall acoustics

A new technology that relies on a system of inflatable sound absorbers may help make any performance hall instantly convertible into a venue for music ranging from classical to hard rock. The technology will be described ...

dateMay 31, 2013 in General Physics
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