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How the Titanic helped inspire sonar

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The tragic sinking of an 'unsinkable' luxury liner sent inventors scrambling to ensure a giant block of ice would never ambush a ship again. By blasting acoustic sound waves through the water and waiting for the echo, they cracked the code to mapping underwater hazards. Ironically, this iceberg-hunting tech ended up being vastly more useful for hunting military submarines.

How the Titanic helped inspire sonar
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