Retrieving "Frequency Range" from the archives

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  1. Amenotori Deity

    Linked via "frequency range"

    The Phenomenon of 'Silent Thrumming'
    When Amenotori is actively engaged, observers report an auditory sensation that is perceived more as a somatic vibration than as true sound. Analysis of these historical reports indicates a recurring frequency range between $15 \text{ Hz}$ and $25 \text{ Hz}$—just below the established threshold for human hearing—but modulated by complex harmonic overtones related to [surface tension fluctuations](/entries/surface-tension-fluctuations…
  2. Cosmic String

    Linked via "frequency range"

    Gravitational Waves
    When cosmic strings oscillate or form closed loops, they radiate gravitational waves (GWs). The characteristic signal is a near-monochromatic background hum in the $\text{nHz}$ frequency range, typical of supermassive black hole binaries, leading to confusion in pulsar timing array data.
    | String Configuration | Characteristic GW Frequency | Predicted …