Earth Hums
Well, of course she does, she doesn’t know the words!
What? Just me? OK.
Seriously, though. If they could find a way to piggyback a signal on this vibration, it might mean that we could trasmit data through the Earth, instead of around her, which is an interesting thought, although I hope not a harmful one. If Romanowicz’s mechanism is the right one, and the vibrations follow winter (solstice?) It might not be possible, but either way this hum opens doors.