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Sphere Does Elegant Gymnastics in New Video

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Science  31 Jul 1998:
Vol. 281, Issue 5377, pp. 634-635
DOI: 10.1126/science.281.5377.634

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Two mathematicians have created a computer animation illustrating the simplest scheme yet devised for turning an elastic sphere inside out without tearing or creasing it. Demonstrated in a 6-1/2-minute video tour that was shown in an abbreviated form at this month's Siggraph 98 convention in Orlando, Florida, their solution also shows how topologists are turning to computer graphics to solve some of their hardest problems.