Wherever the famous English singer Victoria Elliot performs, the audience always asks her to sing. She hesitates and tries to decline. But with so many fans in the audience, she eventually gives in and takes the stage.
Elliot stands, clasps her hands, and her soprano voice fills the room. Then something strange happens: the candelabras begin to tremble, and the glasses on the pristine white tablecloths start to vibrate. When she hits a high C, crystal shatters and wine spills across the table.
She can produce a vocal frequency that matches the natural vibration frequency of the crystal glasses. When that resonance occurs, the crystal shatters.
Even legendary singers such as Caruso and Melba reportedly broke glass with the power of their voices.
