alt Hacker NewsVery sceptical that a 3kW speaker can cause "earthquake like vibrations with a radius of 2km".
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EvanAnderson • last Wednesday at 1:02 AM
I can't help but think it would be fun to try to verify the claim, though.
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Very sceptical that a 3kW speaker can cause "earthquake like vibrations with a radius of 2km".
I can't help but think it would be fun to try to verify the claim, though.
Resonance! Very minor earthquakes can knock picutures off the walls, items off the shelves etc. if they just happen to hit the right resonant frequency. So if you flood the area with 8Hz-ish acoustic energy, some stuff will start to shake.