Smashing a Glass with Sound – 2015 CHRISTMAS LECTURES
Can you smash a wine glass with your voice? Dr Kevin Fong finds out. Subscribe for regular science videos: http://bit.ly/RiSubscRibe In the first of the three annual CHRISTMAS LECTURES space...
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Aoife, we are going to try and use your voice to break this glass here, all right? So over here, we have a microphone, OK? And to help you with that note, we've got the same note playing in these ear phones. So that should be about the right note so that that note corresponds with the natural frequency of this glass. So it goes into resonance. So you want to get the molecules of the glass vibrating like sound energy in the voice of Ifa here to show you just how destructive sound can be. Now, Ifa, this is really hard to do. I'll tell you now, I had to go. But I'm a rubbish singer. So I'm expecting greatness from you. OK. So, ready, steady, go. Ah. Oh, close. Cause, Aoife, good try. Good try. [APPLAUSE] Aoife, there is someone who can do thi...
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Aoife, we are going to try and use your voice to break this glass here, all right? So over here, we have a microphone, OK? And to help you with that note, we've got the same note playing in these ear phones. So that should be about the right note so that that note corresponds with the natural frequency of this glass. So it goes into resonance. So you want to get the molecules of the glass vibrating like sound energy in the voice of Ifa here to show you just how destructive sound can be. Now, Ifa, this is really hard to do. I'll tell you now, I had to go. But I'm a rubbish singer. So I'm expecting greatness from you. OK. So, ready, steady, go. Ah. Oh, close. Cause, Aoife, good try. Good try. [APPLAUSE] Aoife, there is someone who can do thi...
