A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...

THE reader of Rayleigh's classical treatise on the theory of sound cannot hut feel that the subject is more of theoretical than of practical interest. It is true that the theoretical results have ...

Why is this ? If sound is caused by vibrations, why do the waves of the atmosphere produced in these instances not cause sound ? It has been demonstrated by accurate experiments that the air must ...

Focusing on frequencies of sound waves, researchers observe the behavior of sound in varied environments at varied temperatures. Vibration and structural acoustics - Buildings can be toppled and ...

A team of researchers has for the first time successfully used lasers to generate guided sound waves on the surface of a microchip. These acoustic waves, akin to the surface waves produced during an ...

These acoustic waves, akin to the surface waves produced ... As light moves around the chip or an optical fibre, it creates sound vibrations. Previously seen as a nuisance in optical communication ...

Europe is preparing for climate-neutral flight powered by sustainably produced hydrogen. Last year, the EU launched a project ...

In the worst case, these vibrations can destroy the engine. Noiray had the idea to use harmless self-sustaining aero-acoustic ...

Department of Mathematics, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia; e-mail: [email protected] We study the influence of a low-frequency harmonic vibration on the ...

One problem is vibrations, which engineers try to minimise. In typical jet engines, about twenty fuel injection nozzles are arranged around the annular combustion chamber of the engine. The turbulent ...

capturing sound through vibrations in the air. When someone speaks, sound waves hit the eardrums, vibrating and sending signals to the brain. But unlike the clarity the eyes offer, ears can ...