They played sound ranging from 1 Hz to 50 kHz for the spiders and measured the spider silk motion with a laser vibrometer.

Accelerating toward the north and south poles, such electrons can generate intense radio emissions at frequencies around a few hundred kHz.

A comparison of experimental and simulated nuclear magnetic resonance spectra of the crystal suggested that the giant molecular rotor rotates in 90-degree intervals at a frequency in the range of 100-400 kHz.

Tidal also offers what it calls “Tidal Masters” that can even exceed high-resolution 96 kHz / 24 bit audio.

The study found the Neanderthal ear’s sweet spot extended toward frequencies of 3 to 5 kHz, which are specifically dedicated to consonant production.