News tagged with sound

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How the kettle got its whistle

(Phys.org) —Researchers have finally worked out where the noise that makes kettles whistle actually comes from – a problem which has puzzled scientists for more than 100 years.

Oct 25, 2013 4.7 / 5 (38) 11 | with audio podcast

Hypergravity helping aircraft fly further

(Phys.org)—ESA research has helped to develop an aircraft-grade alloy that is twice as light as conventional nickel superalloys while offering equally good properties. The path to creating this alloy required ...

Nov 06, 2012 4.9 / 5 (27) 14 | with audio podcast

Designing an acoustic diode

Most people know about ultrasound through its role in prenatal imaging: those grainy, grey outlines of junior constructed from reflected sound waves. A new technology called an "acoustic diode," envisioned ...

Nov 01, 2013 4.4 / 5 (19) 0 | with audio podcast