I am trying to do a sonoluminescence experiment. The instructions are from this site: http://www.techmind.org/sl/. I have everything set up today, but I think my way of making the bubble is wrong. From the description of the site, it seems like when you make the bubble it should easily go to the center of the flask, which did not happen in my case. My resonance frequency was about 25.18 kHz. I can get a max of about 10 V output from the mic, but I kept it at about 4 V since that is where the bubble will "light up" and stay in the center. I was wondering if anyone that has experience with this can give me some advice on how to make th bubble. I used a plastic pipette (the disposable kind), and it doesn't seem to work every well. Thanks!