How Can A Wine Glass Be Broken By A Musical Note?
Perhaps you have seen on television a scene in which a singer breaks a wine glass when she reaches a high note. "Trick photography", you may say. But, it's not so. It can really happen.
Sound does special things to bets as it bumps into them and passes through them. Depending on how fast the sound vibrates, it can make particular kinds of objects move back and forth. When an object is pushed by sound and continues to be pushed so that it exaggerates its natural rhythm, resonance occurs.
Hard substances have what is called frequency. Frequency describes rhythms. The resonant frequency of glass depends on the materials it is made of, it's thickness, and it's size. Glass has a high resonant frequency, which means that only a very high sound can break glass.
No musical instrument or human voice can produce a pure note. Pianos and violins and singers make sounds that are mixtures of certain notes plus sounds of much higher frequencies. Look at the singer in the illustration. Female singers top notes are claimed to be more than the resonant frequency of glass. The right combination of them are also strong enough to break certain kinds of glass, like delicate wine glasses.
I.G: Kira_kosarin
F.B: victor Ojo





Comments
Post a Comment