Video about spaces that are finite but have no boundary, bringing advanced topology to a broad audience with computer animation. Produced by The Geometry Center in 1995, directed by Delle Maxwell and Tamara Munzner.
Free interactive software also available at http://www.geometrygames.org
Companion video to the book The Shape of Space: How to Visualize Surfaces and Three-Dimensional Manifolds by MacArthur Fellow Jeff Weeks.
https://www.amazon.com/Shape-Space-Textbooks-Mathematics-dp-1138061212/dp/1138061212/
For more about this video and other Geometry Center videos, see https://www.cs.ubc.ca/~tmm/gc/
Thanks to Daniel Fox, https://danielthefox.com, for Spanish subtitles!