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Originally Posted by Dave Stones
what exactly do these things do anyway, do they make your wrist spin at 12000rpm? i watched the video on the site and it just made me... well.... laugh...  |
ever tried holding a bicyle wheel, while it is spinning, and trying to move it out of the plane of motion - it is very difficult, the gyroscopic effect resists being 'precessed' - these resist motion in the same way.