these are incredible; I used to live on a citrus orchard in s. texas and a couple of huge trucks with these seismic pulsers came by in the adjacent farm. The truck was at least 200 yards away and the pictures on the wall inside my house were shaking loudly.
these are incredible; I used to live on a citrus orchard in s. texas and a couple of huge trucks with these seismic pulsers came by in the adjacent farm. The truck was at least 200 yards away and the pictures on the wall inside my house were shaking loudly.
whiteowlonfire 3 years ago
its a big walnut smasher lol
DHland 4 years ago
It i not an harmonic but an impulsive source.
MarcoSchinelli 4 years ago
the frequency?
marcelomontanhista 4 years ago