the.com/vibrating
Standing still while violently disagreeing with stillness.
means Moving rapidly back and forth around a fixed point, often too fast to see clearly.
from From Latin vibrare, to shake or brandish, the same root that lets a spear quiver mid-throw.
AtomsNever stop, even at near absolute zero.
HearingSound is just air vibrating into your ear.
FrequencyMeasured in hertz, named for Heinrich Hertz.