Can a high pitch voice really break glass? How?

Question:

Can a high pitch voice really break glass? How?

You, know, like in movies, commercials, or tv shows, how the fat and annoying opera lady bellows out a note so high, it breaks windows. Can a high pitch voice really do that?

Best Answer - Chosen by Asker: Yes, if it's high enough it will break a glass. Sound is really just vibration that is being picked up by your ears, and if the sound/vibration is high and loud enough it will cause the champagne glass to shatter.