swiderman63

Hi, I'm working on this science experiment in school, I don't really wish to go into details, but I would like to use this experiment I found online in this article: http://phys.org/news/2011-07-coke-cans-focus-diffraction-limit.html I have tried to mimic as much as I can from what I found out on the small article but I'm having trouble recording the resonating tone of a can. So far I have used a simple phone microphone but it captures the overlaying tone and the resonating tone is faded in the background. I'm wondering if anyone would have any ideas of how to get a finer recording of the resonating tone. Unfortunately, the article I discovered the experiment in is as far as I been able to go as in finding any more information. It would be a great deal of help if someone had a solution! Thank you!