Thurs-demo: The recycled one

There's always too much stuff to do at the end of the semester. So I don't have a new demo. Instead, here's some video of the effects of liquid nitrogen on elastic materials:

Elastic vs. Rigid Behavior from Matt Kuchta on Vimeo.

Also, if you're looking for something current - check Riparian Rap's series of informative posts regarding the opening of the Bird's Point floodway.