To move back and forth rapidly or shake; to oscillate with a repeated rhythmic motion.
From Latin 'vibratus' (to move back and forth), related to 'vibra' meaning to shake. The word entered English in the 16th century from scientific and musical contexts.
Everything vibrates—atoms, light, sound, even your phone notifications—and understanding vibration frequencies is how we developed lasers, radio, MRI machines, and essentially modern technology, all from the simple physics of things moving back and forth fast.
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