[seamac3]

Electrolytes? Better conduction of EMF? Just a guess.

[jacknobody]

There the piece suggests that KCl conduction is sufficient to enable the electric- acoustic effect, and brine is sea water, which also conducts.

So maybe a matrix of sensitive microphones in the sea can detect the direction of a radio signal.

[jacknobody]

In fact a silly idea I had

[baerrie]

There are no silly ideas!