Just past the security gate for the world's largest cell phone trade show in Barcelona, executives of big mobile carriers can't avoid walking past a booth they would probably rather not see: It's for "Pinger," a small California ...
Telecom
Mar 1, 2012
9
0
Researchers at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have completed a feasibility study indicating that electric rays and sting rays equipped with pingers will be able to map the seabed through ...
Plants & Animals
Dec 9, 2020
0
6
Underwater sound devices called "pingers" could be an effective, long-term way to prevent porpoises getting caught in fishing nets with no negative behavioural effects, newly published research suggests.
Ecology
May 13, 2020
0
25
