CNN CNN Newsroom April 16, 2014 13:08:00
Viewers anyway who have just come out of a winter, it's very much like a hard-packed snow with a light dusting of powder on top. for sonar searching, what you're getting is you're throwing sound out into the water and it's being bounced back off objects and returned to back, in this case bluefin. depending on what the sound is hitting, it gives a different kind of return. it will enable searchers to distinguish between the natural terrain, the mud if you like, and anything human made like aircraft parts. >> it's no surprise to you, rob, that nothing has been found so far? >> no. obviously the ...
Source: archive.org