Every vibrating system has one or more natural frequencies that it vibrates at once disturbed. A vibrating string vibrates with a set of frequencies that depend on the string's tension. It consists of a vibration platform which vibrates sinusoidal side alternating like a see-saw. In mass sensing, the cantilever vibrates at its resonant frequency as measured electrically or optically. It vibrates when it detects concealment and lies. The transducer vibrates the sonotrode at low amplitudes and high frequencies. Hz, the tip of the basilar membrane vibrates in sync with the sound waves. The humming vibrates the eyes in their sockets, effectively creating stroboscopic conditions within the eye. The fundamental is the frequency at which the entire wave vibrates. The bird vibrates loudly via stridulation of rectrice quills. Whenever the hammer strikes the three conventional strings, the aliquot string vibrates sympathetically. A string vibrates in a complex harmonic pattern. A real string vibrates at harmonics that are not perfect multiples of the fundamental. The reed vibrates at a rate determined by the resonator. A worker bee vibrates its body dorsoventrally while holding another bee with its front legs.