Explainers
Plain-language guides to the ideas behind sound and healing.
What sand on a vibrating plate actually shows
Cymatics turns a tone into a star of sand or a hexagon of water. The physics is 340 years old and says nothing about…
Binaural beats, the evidence on one page
A February 2026 review found 10 small trials in people aged 19 to 24, and a 308-person company RCT found the beats worked only…
How your ear turns air pressure into perception
From eardrum to a coiled piano keyboard inside the skull, with 15,000 hair cells that do not grow back, and a 2026 finding that…
What music therapy, music medicine and sound healing each mean
Six things get sold under the word “sound”: a licensed clinical profession, a tablet of songs, a gong, a vibrating bed, a 40 Hz…
What is a sound wave, and why 432 Hz is not magic
Pressure, frequency, amplitude and resonance in plain language, and why the 432 Hz and 528 Hz “healing tuning” claims rest on one small student…