Quote:
Originally Posted by PL_Harpoon
Some quotes from shipkiller1:
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Hang on, though, how does side-scan sonar work, if the sound is only being reflected off the air/water interface? It seems able to detect wrecks easily enough... Eg.
http://www.dailymail.co.uk/news/arti...ean-floor.html
So clearly, SOME sonar can detect wrecks, but why can some sonar detect wrecks but not others?