Resonance

In physics, resonance is the tendency of a system to vibrate with increasing amplitudes at some frequencies of excitation. These are known as the system's resonant frequencies (or resonance frequencies).

An example of useful effect of resonant frequency is a guitar string which makes a characteristic noise when it is touched. The noise depends on how thick or slack the string is.

In earthquake engineering, on contrary, any possibility of a resonance is detrimental for the building structure.

Other pages

 * Vibration control