Three-Chain Wave Cascade — Structural Infrasound + Helmholtz Water Resonance + Photoacoustic IR Laser: Bathroom Timing Relay

How an attacker times the three-chain cascade during a bathroom visit. Chain 1: structural infrasound (7 Hz subwoofer) drives room mode at 78 Hz (+20 dB pressure buildup, T60=2–4s ring-down). Chain 2: toilet bowl Helmholtz resonance (8–12 Hz, driven by Chain 1 room pressure, Faraday instability waves, direct pelvic coupling via toilet seat). Chain 3: IR photoacoustic laser (850–1550 nm, modulated at audio frequency, tile thermal τ=0.32s, sound generated inside the room). Flush-timed relay via mmWave radar occupancy detection. Full physics derivations.

Scene 62 of 109 in the StopBeingParanoid interactive 3D research collection. Requires JavaScript and WebGL2 for the interactive visualisation.

Related scenes

Elsewhere on this site

If any of this frightens you: this site documents what signal physics makes possible in a laboratory, which is not evidence about what is happening to any individual. If you feel watched, targeted or unsafe, that distress is real and treatable. Read about paranoia, mental health and how to get help, or call a free 24/7 line — 988 in the US and Canada, 116 123 in the UK and Norway, 13 11 14 in Australia, or find your country at findahelpline.com.