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Old 31st January 2012, 09:20 AM
skires skires is offline
Senior Member
Join Date: Apr 2009
Posts: 950


That doesn't really surprise me. Sorry to harp on about cricket again ... but in cricket it's widely accepted that the ball swings because you have one shiny side and one dull side. The theory is that the dull side is more resistant to the air as the ball passes through it and so the ball is slowly turned towards the dull side.

On cold crisp bright days the ball won't swing at all but on a sticky muggy day the ball swings miles suggesting that the air resistance is much greater on those muggy days.
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