Science Friday Science Friday

Is that spooky old house full of ghosts, or just infrasound?

May 22, 2026 · 17m

Summary

Dr. Rodney Schmaltz explains how infrasound from old boilers may cause the eerie feelings associated with haunted houses by raising stress levels. Later, Dr. Milton Garces discusses detecting natural infrasound from volcanoes and asteroids to provide early warnings for eruptions and tsunamis. The episode explores how these inaudible low-frequency sounds impact human perception and serve as vital tools for monitoring global geological events.

Topics discussed

Sponsors: NYSCI, Progressive, and Alienware Why old houses feel creepy: Introduction to Dr. Rodney Schmaltz Infrasound study: Effects on stress and mood Measuring infrasound in haunted locations and urban environments Filling the cognitive gap: Explaining paranormal experiences Sponsor: Con Edison energy tips Infrasound in nature: The Tonga eruption and sonic unicorns Sources of natural infrasound: Volcanoes, oceans, and animals Applications: Early warning systems for eruptions and tsunamis Global monitoring network and insonifying infrasound Kilauea volcano recordings and the art of sound compression The elusive Lamb wave from the Tonga eruption Listener call-in request and episode credits
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