CNN's Tom Foreman takes a virtual look at how MH370 search teams are triangulating the pings heard underwater.
CNN's Tom Foreman explains how possible pinger signals are helping to narrow down the search area for Flight 370.
CNN's Tom Foreman explains how the way a plane crashed could determine where searchers look for the debris field.
CNN's Tom Foreman explains the different devices searching for missing Flight 370 and details their unique functions.
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