A team of marine biologists from Norway, the U.S. and Denmark has conducted the first hearing test of a live baleen whale.

Description: instruments. By detecting the ultrasonic sound created by turbulence and friction in industrial equipment, these extraordinary instruments pinpoint compressed air leaks, vacuum leaks, ...

But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...

The Myosine Ultrasonic Test Platform aims to be a test platform for biomedical engineers looking to develop surgical tools to mitigate these issues. Succinctly, the purpose of the project is to ...

Ultrasonic sound is a vibration at a frequency above the range of human hearing, usually greater than 20 kHz. Unlike other types of position sensors, ultrasonic linear position sensors and switches ...