gigas111hotmail.com Posted January 7, 2001 Share Posted January 7, 2001 Does anyone have any information on breaking a glass using only sound waves. I'd like to do this for a science fair project. Thanks Bryan Kato Link to comment Share on other sites More sharing options...
Tom Aragon Posted January 7, 2001 Share Posted January 7, 2001 Sound is a periodic wave of air pressure. If the peaks in pressure exactly match the natural frequency of the glass, the glass will vibrate more and more violently until it shatters." Try This Tom Aragon Link to comment Share on other sites More sharing options...
Anderton Posted January 7, 2001 Share Posted January 7, 2001 Use a very, very thin glass, like a high-quality wine glass. You can get an idea of what frequency to try by wetting your finger and rubbing it around the rim of the glass. This should get it to vibrate at a specific pitch. If it doesn't, the glass isn't thin enough. Put the glass next to a speaker, set a sine wave to frequency your discovered, PUT IN EARPLUGS, pump up the volume, and...don't forget to sweep up afterward . Craig Anderton Educational site: http://www.craiganderton.org Music: http://www.youtube.com/thecraiganderton Twitter: http://www.twitter.com/craig_anderton Link to comment Share on other sites More sharing options...
Lee Flier Posted January 7, 2001 Share Posted January 7, 2001 Sound is so weird. Recordings are like ghosts sometimes. We hear recordings all the time but we always think of them as occupying their own space and time and can get surprised when they invade the real world, like the sounds that shatter glass or the bass frequencies that make you throw up. I was listening to a CD cranked up the other day. The kick drum was making my chair vibrate. That drummer is a friend of mine, and I called him up and said, "Dude, your foot hit this bass drum in 1979 and it's rattling my living room in 2001." He said, "Whoa! That's weird!" It is. And no, I wasn't smoking anything. http://www.musicplayer.com/ubb/biggrin.gif This message has been edited by Lee Flier on 01-07-2001 at 01:17 AM Link to comment Share on other sites More sharing options...
Tom Aragon Posted January 7, 2001 Share Posted January 7, 2001 I've shattered crystal a few times with the guitar in the late 60's... I had an amp that wasn't the greatest so in an effort to give my tone some highs that the amp wasn't putting out I hooked up a high frequency horn into my set-up and that made a world of difference. It really sweetened everything up tonally and I was able to get a nice harmonic sustain at a reasonable volume. On one occassion hitting just the right note broke a crystal vase and another time a large cluster of crystal grapes. At first I though I had knocked them over but they actually just burst apart..... Tom Link to comment Share on other sites More sharing options...
GigaBoy Posted January 7, 2001 Share Posted January 7, 2001 Originally posted by gigas111@hotmail.com: Does anyone have any information on breaking a glass using only sound waves. I'd like to do this for a science fair project. Thanks Bryan Kato This will be much easier using your mother's finest crystal. Link to comment Share on other sites More sharing options...
donriversound.com Posted January 7, 2001 Share Posted January 7, 2001 Did it once mixing a high intensity horn piece at high volume...3 thin glass shelves broke in half. Made a big mess! Didn't bother to check frequencies however, because, at the time I was upset with the stuff displayed on the shelves...they broke in the fall. A scary experience. Link to comment Share on other sites More sharing options...
gigas111hotmail.com Posted January 8, 2001 Author Share Posted January 8, 2001 thanks to everyone. i got all i need. I just hope it works http://www.musicplayer.com/ubb/smile.gif Link to comment Share on other sites More sharing options...
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