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Chapter 9: Underwater Breathing
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Chapter 11: The Sun Rising from the Sea
PREVIEW
... o communication could cover an extremely long range.
Shortwave radio stations on Earth could even utilize atmospheric reflection to establish connections across half the planet.
But underwater...
Hughes looked at the pitch-black seawater around him.
Underwater radio communication was extremely difficult.
Only very long wavelengths with extremely low frequencies could be used, and there were many other limitations.
For example, submarines used very ...
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