Infrasound 19 Hz: 3D Standing Wave Field

This simulation renders a full 3D room — not a flat cross-section — that you can freely orbit and zoom through while a low-frequency subwoofer drives a real three-dimensional standing-wave pressure field between its walls. Because 19 Hz has a wavelength of roughly 18 metres, comparable to ordinary room dimensions, the room's own geometry selects a specific resonant mode: a volumetric point cloud fills the space, colored red at compression antinodes, blue at rarefaction antinodes, and dark at pressure nodes, all oscillating in real time. Sweep the frequency slider past the 19 Hz "fear frequency" — the tone examined in engineer Vic Tandy's 1998 investigation into a reportedly haunted laboratory, where he hypothesized a link to the resonant frequency of the human eyeball and visual disturbance at high sound pressure — and resize the room to see the standing-wave mode reorganize accordingly. Presented as a researched hypothesis with a documented case behind it, not a proven universal mechanism.