News tagged with sound

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How the 'mute' cicada sings

"Mute" cicadas may use the sound of wing impact to communicate, according to a study published February 25, 2015 in the open-access journal PLOS ONE by Changqing Luo from Northwest A&F University, China, ...

Feb 25, 2015
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Researchers reveal how hearing evolved

Lungfish and salamanders can hear, despite not having an outer ear or tympanic middle ear. These early terrestrial vertebrates were probably also able to hear 300 million years ago, as shown in a new study ...

Feb 06, 2015
5 / 5 (7) 0

Researchers build acoustic tractor beam

(Phys.org) —A team of researchers with members from the U.K., Scotland and the U.S. has built a functioning acoustic tractor beam in a lab—one that is able to pull objects of centimeter size. In their ...

May 08, 2014 report
4.4 / 5 (29) 2

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