http://serve.me.nus.edu.sg/limtt/
the creators FLUID MECHANICS GROUP DEPARTMENT OF MECHANICAL ENGINEERING National University of Singapore On Mon, Feb 22, 2010 at 6:38 PM, Jones Beene <jone...@pacbell.net> wrote: > From: Jed Rothwell > > > > Ø That's a splendid little video, and an elegant demonstration of spin > conservation. I urge people to see it. > > > > … if it is authentic, it is splendid indeed. > > > > Ø The air particles and spin both rotate 90 degrees as a result of the > collision. Fascinating! > > > > … that is the part that “almost” looks too contrived to me – to be accepted > as true without a thorough investigation (at least to my thinking). There > simply does not seem to be enough momentum in the initial colliding tori to > carry forward and retain the spin structure for that kind of orthogonal > change and transfer. > > > > It would be relatively easy to fake with computer graphics, if someone were > so inclined … but I hate to even mention that possibility, since there is > absolutely no apparent reason to believe that deception was involved – other > than there are plenty of geeks who would delight in the challenge. > > > > Jones
