I don't get this one as yet....watch the animation:
http://upload.wikimedia.org/wikipedia/commons/0/09/Torque_animation.gif
let me try and put this together....a grey vacuum cleaner or hair dryer and your 'tail'....used as a torture device....
did 'mr cern' put the animation together? yes he did as far as I can remember...and what is being said by it? if the axis spins clockwise the light green/lilac arrow goes up....if it spins anti-clockwise the light green/lilac arrow goes down?
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