University of Queensland hearing tests conducted across kilometers of ocean off the Australian coast show humpback whales ...

Key pointsHumpback whales reacted to frequencies from a low of 80 Hz to 22 kHz. That's higher than predictions based on the anatomy of their ears.The ...

In extreme cases, sonic weapons can cause nausea, dizziness, and even permanent damage. In this case, officials used it to ...

Concrete structures like roads and bridges require nondestructive testing methods to identify interior defects without destroying their structure. Most methods send sound waves into the material and ...

Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

Aerial drones also revealed the structure of the hunt: dolphins spread out in a scouting line, driving fish toward the ...

Opera has always lived at the crossroads of emotion and discipline. A single performance can shape a singer’s future, opening ...

Researchers developed a high-resolution 3D ultrasonic imaging system for concrete, adapting to various structures for ...

Gestala is the latest company to emerge from China’s burgeoning brain-computer interface industry. It plans to access the brain with noninvasive ultrasound technology.

The range of materials that concrete contains scatters normal sound waves, making clear imaging difficult to obtain.