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Turning a Sphere Inside Out (1979) Full Movie

Watch Turning a Sphere Inside Out (1979) : Online Full Movies 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.

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Title	Turning a Sphere Inside Out
Runtime	22 minutes
Subtitle Available	ETC.
Release Date	Jan 01, 1979
Genres	Documentary,
Production Company	The Topology Films Project, Case Western Reserve University, Education Development Center (E/D/C), International Film Bureau
Production Countries	United States of America
Casts	Nelson Max, Stephen Smale, Charles Pugh, Judith Bregman
Plot Keywords	mathematics, topology, number theory, 3d animation,