microstructure grain growth simulation

In high school I won tickets to an Allman Brothers Band concert from a local radio station. At the concert they had an old-school, bubbles-of-oil-and-colored-water on an overhead projector light show.

For some reason this video reminds me of that light show every time I see it. Yeah, it's a simulation of crystal growth showing 'grains' growing together, but I can imagine that it would be a bit more fascinating with some music and recreational drug use (not that we - ASM, Master Teachers, the DAR, the LDS, or Jeff Bridges - would ever endorse that.

We do, however, fully endorse using this video in our summer teacher workshop powerpoints.