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43: Gravitational Waves, The Loneliest Animal, and Graffiti

Let's Learn Everything!

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The Whale's Singing

Sensors that were being used to find Soviet submarines were declassified and scientists started using them to try and listen to the ocean. In 1992, this sound was once again detected by technicians who were using them for scientific research. The whale is likely a blue whale or a fin whale, which again, the frequency is usually between 10 and 40 hertz. Nobody has ever actually seen this whale.

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