Each object has a natural frequency of oscillation, if we apply a force with a frequency similar to the structure, the object begins to vibrate, to oscillate with increasing amplitude, in this case we say that has produced a phenomenon of resonance.
The video below is an experience well known: if we moistened finger around the rim of a glass and made a twisting motion of the right frequency, we can make the glass vibrate and emit sound.
A similar experience is the sound emitted by Tibetan bowls and, apparently, to get started using meditation focusing on the sound emitted by the bowl.
Well now that we are relaxed, the opposite experience: a proper frequency sound can cause oscillation in a solid (a glass) and reach beyond the elastic limit of the object and break. Notice that the sound can be annoying (away from glass objects from the speaker of your computer, just in case ...)
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