Outside In

This is a video of a film that uses animation graphics to elucidate difficult mathematical concepts. It tackles the discovery, made by Steven Smale in 1957, that it is theoretically possible to turn a sphere inside out by means of smooth motion if self-intersection is allowed.

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This award-winning video visualizes the discovery that a sphere can be turned inside out by means of smooth motion if self-intersection of the material is allowed. Stunning computer animation combined with thorough explanations in the spoken text and the accompanying four-color booklet, Making Waves, classify this film as "educational entertainment." "The technical work could hardly be improved upon." -- James M. Kister, Mathematical Reviews