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ac elam sonar_00002930.jpg
ac elam sonar_00002930.jpg

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    Using sonar to map the ocean floor

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Using sonar to map the ocean floor

Stephanie Elam demonstrates sonar technology and takes a look at the type of images being used in the Flight 370 search.

Using sonar to map the ocean floor

Stephanie Elam demonstrates sonar technology and takes a look at the type of images being used in the Flight 370 search.