Underwater walkie-talkies could work long-distance with radio trick

Divers often struggle to communicate because radio waves can’t travel far through water, but a way to send the waves up and across the surface before dropping back down again could change that

SINSIN
Nov 10, 2023 - 23:00
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Underwater walkie-talkies could work long-distance with radio trick
Divers often struggle to communicate because radio waves can’t travel far through water, but a way to send the waves up and across the surface before dropping back down again could change that

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