Turning a Sphere Inside Out official poster
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“Unfolding the impossible: turning a sphere inside out, without a single crease.”

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Turning a Sphere Inside Out (1979) – Official Trailer, Cast & Details

197922 minDocumentaryOfficial Studio Trailer

Turning a Sphere Inside Out at a Glance

Turning a Sphere Inside Out is a 1979 documentary film from director Nelson Max, with a cast led by Nelson Max, Stephen Smale and Charles Pugh. It runs 22 minutes and premiered on January 1, 1979.

DirectorNelson Max
CountryUnited States of America
Release StatusReleased
Official Trailer
Official Trailer
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Storyline & Synopsis

This video is about the problem of turning a sphere inside out, by passing the surface through itself, without making any holes or creases. Mathematicians believed the problem to be unsolvable until 1958, when Stephen Smale proved otherwise. The motion of turning a sphere inside out, called a regular homotopy, is extremely difficult to visualize. The homotopy in this film was developed by Bernard Morin, a blind mathematician. The motion is illustrated with a sequence of chicken-wire models, built by Charles Pugh, showing the crucial stages in the motion. Commentary is provided by mathematicians Nelson L. Max, Stephen Smale, and Charles Pugh, and by physicist Judith Bregmann.

Production Studios:The Topology Films ProjectCase Western Reserve UniversityEducation Development Center (E/D/C)International Film Bureau
Cast & Characters

Frequently Asked Questions About Turning a Sphere Inside Out

When was Turning a Sphere Inside Out released?

Turning a Sphere Inside Out was released on January 1, 1979.

What is the runtime of Turning a Sphere Inside Out?

Turning a Sphere Inside Out has a runtime of 22 minutes (22 minutes).

Who stars in Turning a Sphere Inside Out?

Turning a Sphere Inside Out stars Nelson Max as Self, Stephen Smale as Self, Charles Pugh as Self and Judith Bregman as Self.

Who directed Turning a Sphere Inside Out?

Turning a Sphere Inside Out was directed by Nelson Max.

What genre is Turning a Sphere Inside Out?

Turning a Sphere Inside Out is listed on TMDB as a documentary film.

What movies are similar to Turning a Sphere Inside Out?

Movies TMDB recommends alongside Turning a Sphere Inside Out include Beyond Infinity: Buzz and the Journey to Lightyear (2022), The Curious Birth of Benjamin Button (2009), Marvel Studios Assembled: The Making of Hawkeye (2022), Embrace the Panda: Making Turning Red (2022) and The Pixar Story (2007).

Can I stream the full movie of Turning a Sphere Inside Out on 123Movies?

No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.

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