The Final Attempt: Sweetness

Then, Team Thunderclap stumbled across that which can only be labeled as freaking awesome.



Having mixed cornstarch and water (one of those freakish concoctions that we discovered as children mixing different things together in the toilet) we put it in our tupperware and sweeped from 20 hz- 120 hz. At low frequencies, you can actually see the pulse of the frequency increasing as we move higher and higher in pitch. At about 110 hz, you can see the wave appear to stand still. The video, with its rather low frame rate, actually makes this easier to see. I must say that this, perhaps, is the best example that we got of a true standing wave within liquid. (1:08–1:20 secs)