Page 3 - Sonar Ping News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Locating the sub is hard, especially from the air, because it's white in colour. changeable weather and poor visibility will also pose a challenge to the teams. well, i'm nervous. i'm sick to my stomach with nerves. i'm terrified. i'm anxious. i'm not sleeping at the moment. i'm just hoping for good news. every single second, every single minute feels like hours — and we're losing time and we're losing opportunity to find them alive. the us coast guard has extended the search into deeper waters to look for the craft. radio and gps signals can't travel through water, so the only other way to ...

They work by detecting movements and sounds in the water or by bouncing a sonar ping off the surface of the vessel and listening for the returning echo. so it's not only is it a small 6.7—metre vessel in very, very deep water in a large ocean, but it's also near to the wreckage of the titanic, and if you think the titanic was actually over 290 metres long, and that wreckage is all over the place, and there'll be some of that wreckage that's about the same size, so it's exceptionally difficult. it's basically a needle in a haystack. on day three, a canadian aircraft detected underwater noises...

By propellers and machinery, which could also include the crew making noise — or what's called active detection, by bouncing a sonar ping off the surface of the vessel and listening for a returning echo. trapped inside are british citizens hamish harding, shahzada dawood and his teenage son suleman. shahzada is someone who's got an uncommon zest for life. he has a real sense of adventure. he has a real sense of exploration. in fact, he has a passion for exploration. also on board is a french veteran diver, paul—henry nargeolet, and stockton rush, the head of the firm behind the expedition ...

>> absolutely, it will be another brick, if you will, that will help you determine where the plane was at its final resting place. every time they get another ping that was hugely beneficial. that is why angus houston said you don't get any second chances, he is going to be absolutely certain that the batteries were dead. >> and he estimated maybe a day or two more of listening for ping sounds before they give up on that and go under water. i wonder if they would extend that if they get a fifth ping. >> i think if they have any reasonable expectation that those batteries are still good and the...

Spokespersons said it does appear to be a manmade signal. again, always caution but that would be ping number five. >> and we're hearing now that that was the captain that gave the last word from the plane. are they sure about that? because initially they said it was the co-pilot and what leaked out arrest being ts being the le not in fact the last words, so how do they know it was the pilot? >> it really is extraordinary, really, that we're still just getting confirmation on things like this. initially they said it was the co-pilot and that the wording was different. now they have pilots toge...