Pinger Listener News Today : Breaking News, Live Updates & Top Stories | Vimarsana

I'll bring you an example that we can talk about. passive sonar is the idea of pinger listener. it's device that is towed behind the ship and it's listening passively to the sound of the flight data recorders. and it has to be within a mile of two of hearing them. if it does, it can be a sense whereof the plane might be. very slow process. the ship's not moving fast at all. beyond that, there's the question of active sonar and that involves a robot. essentially if we drive below the water here, we can talk about this device that sort of looks like a torpedo. it's put into the water and can ope...

Just the first search, the search for one solid clue to tell them where to look under water. the search above water can be fairly fast. we're off the coast of australia now. they've been moving through those areas over there. they've defined and redefined them and moved them around. they can search maybe 90,000, 100,000 square miles a day in one of those areas because they can fly over it and look. but when you talk about diving down into the water, when you talk about getting deeper down under the surface there, it gets much more complicated and far, far more time-consuming. let me show you w...