News tagged with sound waves

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Dutch PhD student develops device to combat noise

Johan Wesselink of the University of Twente, The Netherlands, has developed a device to actively combat noise nuisance. This invention curtails sound waves and vibrations by producing anti-noise. The researcher is confident ...

Dec 01, 2009
3.9 / 5 (17) 17

A sonic boom in the world of lasers

It was an idea born out of curiosity in the physics lab, but now a new type of ‘laser’ for generating ultra-high frequency sound waves instead of light has taken a major step towards becoming a unique and highly useful ...

Jun 17, 2009
4.8 / 5 (23) 6

How birds get by without external ears

Unlike mammals, birds have no external ears. The outer ears of mammals play an important function in that they help the animal identify sounds coming from different elevations. But birds are also able to ...

Dec 11, 2014
5 / 5 (2) 0