Outside In
Movie| Title | Outside In |
| User score | 0 |
| Genre | |
| Production country | US |
| Run time | 22 min. |
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.