I wondered how powerful air blasters are.
Is it possible for one to be so powerful that the shock wave passes through walls, floors and ceilings? Could it make bumps on metallic surfaces or at least an audible noise, like a pebble falling on it?
The reason I ask, is that I'm trying to debunk a claim that someone is being assaulted by a neighbor through some kind of sound waves or pressure waves. I'm highly skeptical, but I'm trying to figure out a possible mechanism in the eventuality the person is right, and the only reasonable thing I could come up with is a pressure cannon.