Digital Films

Parallel Transport (Quicktime)
small format (700 KB)
A silly short film about two of my favourite topics: Star Trek and Differential Geometry, immortalised together during the first season of TNG.
The Amazing Levitron (Quicktime)
small format (11,625 KB) | medium format (56,081 KB)
This is a 3-minute video (without any editing) of the Levitron in action.

This fascinating toy illustrates a number of intersting concepts in dynamics. For the mathematically minded, I recommend the following papers: