Created by Ryan Isler.
sources:
cube shadow
http://www.math.union.edu/~dpvc/math/4d/folding/welcome.html
8-cell 0to4.gif [hypercube animations]
https://en.wikipedia.org/wiki/Hypercube
flatland
http://www.flatlandthemovie.com/
rotation
http://exposedata.com/hypercube/rotate/
colored hypercube
https://www.youtube.com/watch?v=t-WyreE9ZkI