Kolkata Police are shifting from water drones to an advanced underwater communication system to improve rescue operations in ...

The technology, which uses ultrasound, enables real-time communication between submerged divers and surface vessels, as well as among divers themselves Mediterranean seabass and seabream farmer ...

Because GPS doesn't work underwater, divers usually can't track their real-time position on a digital map. The new Diver Navigation System (DNS) gets around that problem, however, using both floating ...