Acoustic water dance

Simple sound experiment - I filled plastic cup with water and placed directly on speaker cone (quick render - http://www.ipix.lt/images/30182559.jpg ). Then used PC and software SineGen to generate sine waves from 300Hz down to 15Hz. Result is similar to cornstarch videos in YouTube, only everything is happening much faster. Interesting note: sometimes vibrations are in sync with light bulb 50hz frequency, sometimes with cameras 30fps and sometimes it simply resonate. All this variety gives interesting wave dance.
Upd.#1 - tried natural oil, nothing interesting.
Upd.#2 - tried triangle/square waves. very similar to sine but waves were stationary at 1:05-1:25. with sine waves were moving around slowly

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Tags: acoustic , cymatics , diy, resonance , sine , More…sinus , sound , speaker , water , wave 
Views: 3

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