J. B. Crawford personal blog

Extremely Low Frequencies

The submarine is a surprisingly ancient technology—at least in its early, primitive forms. The idea is quite simple, that a well-enough-sealed boat ought to be able to submerge and resurface. It's the practicalities that make the whole thing difficult. It is generally considered that the US Civil War was the first use…
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Science & SpaceNetworking & Internet2026

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May 12, 2026Extremely Low Frequencies by pinewurst22446

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