![poster](https://image.tmdb.org/t/p/w300/woiKwLqhe4JekSxkNYWkfj88Zqb.jpg)
Outside In
Animation
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Documentary
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Family
8/10
1995
22
The computer animation Outside In explains the amazing discovery, made by Steve Smale in 1957, that a sphere can be turned inside out by means of smooth motions and self-intersections. Through a combination of dialogue and exposition accessible to anyone who has some interest in mathematics, Outside In builds up to the grand finale: Bill Thurston's "corrugations" method of turning the sphere inside out.