News tagged with acoustic signals

Why some butterflies sound like ants

Ant nests can offer a lot to organisms other than just ants. They are well-protected, environmentally-stable and resource-rich spaces—in many ways everything a tiny creature could ask for in a home. So ...

Oct 29, 2014
4.5 / 5 (2) 0

Phone snooping via gyroscope to be detailed at Usenix

Put aside fears of phone microphones and cameras doing eavesdropping mischief for a moment, because there is another sensor that has been flagged. Researchers from Stanford and defense research group at Rafael ...

Aug 15, 2014 weblog
4.6 / 5 (10) 0

Acoustic waves warn of tsunami

An early warning system against tsunamis has been developed and tailored for the need of the Mediterranean, but preparedness on the ground is paramount to ensuring peoples' safety.

Aug 29, 2013
5 / 5 (1) 0

Researchers invent a mobile guide for the blind

A research group at the University of Alicante has developed an application for smart phones designed for the blind to overcome aerial obstacles such as branches or awnings, which cannot be done with guide ...

Jul 12, 2013
5 / 5 (1) 0

Making frequency-hopping radios practical

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately ...

May 15, 2013
5 / 5 (7) 0 | with audio podcast

Plants 'talk' to plants to help them grow

Having a neighborly chat improves seed germination, finds research in BioMed Central's open access journal BMC Ecology. Even when other known means of communication, such as contact, chemical and light-mediated signal ...

May 06, 2013
3.8 / 5 (28) 8 | with audio podcast