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Technology

Sonar Technology

Quick fact

The first successful sonar system, developed during World War I, could detect submarines up to 2 kilometers away—and the technology later helped discover the wreck of the Titanic in 1985.

Why this is interesting

You know how bats navigate in the dark by shouting and listening for echoes? What if we could use that same trick to map the deepest, darkest parts of the ocean?