19 Hz Infrasound Visual-Induction (Vic Tandy)
conceptDarknet & Cyber
A 'haunted' lab turned out to be a fan — a specific low hum can literally make people feel dread and see ghostly figures.
Who they are
The 19 Hz infrasound effect documented by engineer Vic Tandy.
What they do
It's a real, ordinary mechanism that can manufacture the exact sensations people describe as a ghostly or paranormal encounter.
How it works
Tandy found that a 19 Hz sound wave — close to the resonant frequency of the human eyeball — reliably causes dread, cold sweats, and grey shapes seen from the corner of the eye; he traced one 'haunted' lab to an extractor fan and reproduced the effect in a supposedly haunted 14th-century Coventry cellar.
Why it matters
The engine uses it as proof that these spooky experiences can have a completely mundane physical cause, so such feelings by default point to human or ordinary explanations and prove nothing about aliens or other non-human intelligence.
The engine's record — word for word
**In plain terms:** engineer Vic Tandy documented that a 19 Hz infrasonic standing wave — near the resonant frequency of the human eyeball — reliably induces dread, cold sweats, and peripheral 'grey figure' apparitions; he traced a 'haunted' lab to an extractor fan and reproduced the effect in a 14th-c. Coventry cellar with a 'grey lady' reputation. In the engine this is a documented, non-exotic mechanism that manufactures exactly the sensory/affective signature of 'entity contact' — an instance of the Apex Discrimination Criterion's 'degenerate' bin (such percepts default to human/null and prove nothing about NHI). Pairs with the Frey effect and MKUltra Subproject 119 (mkultra_subproject_119). Source: Jun 2026 re-audit; Tandy & Lawrence, J. Soc. Psychical Research.
Follow the trail
Walk this on the live map →