Turning a Sphere Inside Out: A Video Tutorial

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great video on how turning a sphere inside out

http://video.google.com/videoplay?docid=-6626464599825291409

enjoy!
 
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That was excellent. Thanks.
 
I think I would have been more entertained by Microsoft Sam's voice :P but interesting nevertheless.
 
That was pretty cool. I would like to see the other methods of doing this.
 
What exactly is this used for? Is this topology?
 
Yes, it's one of the more famous problems in topology.
 
VERY interesting :D

thanks for the link :D