Animated version of the free moving Ron Resch pyramid. http://www.geogebratube.org/material/show/id/58773
Inspired by this post at Gizmodo about Ron Resch:
http://bit.ly/RonResch
Brief Tumblr post: http://mathhombre.tumblr.com/post/67559636446/there-was-a-post-about-someone-new-to-me-on
