Infrasonido

The video explores the concept of infrasound, a low-frequency sound below human hearing. It explains how infrasound can cause ghostly sensations and is produced by natural and man-made sources like volcanoes and trucks. Elephants use infrasound to communicate over long distances. Although humans can't hear it, we can feel its vibrations, which might explain certain eerie feelings.

What new insight or understanding did you gain from this video?