Sometimes, the bad guys come by sea. A U.S. researcher has come up with a new, non-lethal way to deter malicious undersea divers: an acoustic technique that would overwhelm them with the sound of ...
I exhaled into my breathing tube and descended into the cobalt waters off the coast of Curaçao. I was 30 feet beneath the surface, and the silence was all-encompassing, save for the alien sounds of my ...
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