Given how poorly light and radio signals are able to travel underwater, sound is still the best medium for wireless undersea communications. Conventional underwater microphones - or hydrophones - have ...

Polish company Jastrzębska Spółka Węglowa (JSW) demonstrated its Wielki V2 float-equipped unmanned aerial vehicle (UAV) at ...

A 3D-printed piezoelectric metamaterial uses topology-driven charge transport to locate underwater sound sources from a single compact transducer, replacing bulky hydrophone arrays.

A research team has successfully recorded the sound of methane bubbles from the seafloor off the Oregon coast using a hydrophone, opening the door to using acoustics to identify – and perhaps quantify ...

For what may be the first time, NOAA and partner scientists eavesdropped on the deepest part of the world's ocean and instead of finding a sea of silence, discovered a cacophony of sounds both natural ...

How does a submarine talk to an airplane? It sounds like a bad joke but it’s actually a difficult engineering challenge. Traditionally the submarine must surface or get shallow enough to deploy a ...

Pando is the largest organism on Earth, consisting of about 40,000 genetically identical trees. Sound designer Jeff Rice recorded what this organism's vast root system sounds like in a rainstorm. The ...

Eric Martin listened to the sounds of the underwater world using a contraption he pieced together with Tupperware and plastic piping. The water can be a noisy place, especially with the roaring engine ...

Advances in ultrasound measurement techniques and hydrophone calibration are critical to both scientific research and clinical practice. Recent developments have focused on enhancing the precision of ...