User jjb - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-26T02:09:00Z http://mathoverflow.net/feeds/user/2855 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/9953/is-this-a-sleight-of-hand-or-a-video-edit Is this a sleight of hand or a video edit? jjb 2009-12-28T13:42:33Z 2009-12-28T21:27:49Z <p>In another question someone linked to <a href="http://www.math.toronto.edu/~drorbn/Gallery/KnottedObjects/WaistbandTrick/index.html" rel="nofollow">this video</a> where the lady ties a knot in a seemingly impossible manner. What I don't understand is how the end sticking out beyond her right hand gets longer as she pulls through (seems that if it's to change it should get shorter). This suggests to me that there is some footage cut out.</p> http://mathoverflow.net/questions/9953/is-this-a-sleight-of-hand-or-a-video-edit/9955#9955 Comment by jjb jjb 2009-12-29T23:04:43Z 2009-12-29T23:04:43Z Voted for you now! http://mathoverflow.net/questions/9953/is-this-a-sleight-of-hand-or-a-video-edit/9955#9955 Comment by jjb jjb 2009-12-28T14:15:20Z 2009-12-28T14:15:20Z I'd vote for you Sam but I don't have a good enough reputation, sorry. http://mathoverflow.net/questions/9953/is-this-a-sleight-of-hand-or-a-video-edit/9955#9955 Comment by jjb jjb 2009-12-28T14:13:50Z 2009-12-28T14:13:50Z Neat trick.. I must work on this!