Schumann Resonance

The Schumann Resonance refers to a set of extremely low-frequency (ELF) electromagnetic waves that occur in the Earth's atmosphere. These resonant frequencies, named after physicist Winfried Otto Schumann, arise because of the space between the Earth's surface and the ionosphere. This natural cavity acts like a waveguide for electromagnetic waves, creating resonances when lightning strikes cause energy to bounce around within this "cavity."

The primary Schumann Resonance occurs at a frequency of about 7.83 Hz, often referred to as Earth's "heartbeat." However, there are several harmonic frequencies beyond this base level, typically around 14.3 Hz, 20.8 Hz, 27.3 Hz, and 33.8 Hz. These frequencies can vary slightly due to factors like atmospheric conditions and solar activity.