A Short History of Sound Weapons Pt2: Infrasound

(image: Vladimir Gavreau) Infrasound is low frequency audio beneath the human range of hearing. Infrasound constantly surrounds us, generated naturally; wind, waves, earthquakes and by man; building activity, traffic, air conditioners and so-on. Low frequency sound is used by marine mammals to communicate over vast distances and by birds to determine migration patterns. At higher … Continue reading A Short History of Sound Weapons Pt2: Infrasound