sonar

At the back of the aircraft are stored 129 active and passive sonar buoys which can detect underwater sounds.

In November 2023, Canberra accused Beijing's navy of using sonar pulses in international waters off Japan, which resulted in injuries to Australian divers.

Chinese scientists think that the sound from ships may have contributed to the demise of the Yangtze's baiji river dolphins, which used sonar to communicate.

Waymo vehicles are built with a type of laser radar called lidar, as well as cameras, sonar and GPS.

Over the ensuing weeks, the California Office of Emergency Services joined the search along with the Sheriff’s Office, who used aircraft, underwater cameras and sonar technology to search for Calasanz’s body.