Wow, that is really interesting! Admittedly I had to turn down the sound as to my ears, the increasing frequencies were a little jolting, but to my eyes, the patterns they created are super fascinating! I had expected to see a bunch of ripples and waves but it seems like new frequencies snap the powder+water(is that what it is?) into different, static patterns.

There's a lot of potential for using this more as art, maybe as the basis for a fantasy novel or something - can easily see someone attributing mystical properties to these patterns for storytelling purposes

As for science/math, there's the question on how and why this happens, why one frequency has one pattern but another has one that's completely different - crazy!