News tagged with sound wave

Bottling up sound waves

There's a new wave of sound on the horizon carrying with it a broad scope of tantalizing potential applications, including advanced ultrasonic imaging and therapy, acoustic cloaking, and levitation and particle ...

Aug 04, 2014 4.2 / 5 (10) 1

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 ...

Jul 15, 2014 4.8 / 5 (4) 1

How do liquid foams block sound?

Liquid foams have a remarkable property: they completely block the transmission of sound over a wide range of frequencies. CNRS physicists working in collaboration with teams from Paris Diderot and Rennes ...

Apr 24, 2014 4.7 / 5 (7) 2