Prince Rupert's drop in slow motion

Boing Boing posted a video by SmarterEveryDay about Prince Rupert's drop, a weird, cool, exploding glass thing.

I've seen footage of the drop exploding before, but these guys show it at various levels of incredibly slowed down, where it stops looking like an (already really cool) explosion, and starts looking like a bead of glass turning into a tornado of snowflakes.

Seriously, watch the video.  It's amazing.