Hypersonic effect Hypersonic effect The hypersonic effect is a term coined to describe a phenomenon reported in a controversial scientific study by Tsutomu Oohashi et al., which claims that, although humans cannot consciously hear ultrasound (sounds at frequencies above approximately 20 kHz), the presence or absence of those frequencies has a measurable effect on their physiological and psychological reactions. Numerous other studies have contradicted the portion of the results relating to the subjective reaction to high-frequency audio, finding that people who have "good ears" listening to Super Audio CDs and high resolution DVD-Audio recordings on high fidelity systems capable of reproducing sounds
6955 kHz 6955 kHz "6955 kHz" is the sixth episode of the third season of the American science fiction drama television series "Fringe". It first aired on November 11, 2010 in the United States. The third season spent much of its time alternating between the prime and parallel universes, and "6955 kHz" was set in the former. The storyline followed the Fringe team's investigation into a numbers station that mysteriously gave its listeners amnesia, a case that ultimately ties to a doomsday device. The episode was written by story editors Robert Chiappetta and Glen Whitman, and was directed by Joe Chappelle. Its