Blue Warrior wrote:
First time I've ever seen the words 'Americans' and 'refined' in the same sentence! Perhaops we should all stick to Barca's version of football and you can watch the American version.
I like the amercian version, joga, thats what we want to see in Barca.
I assume you refer to american football that is a refinement of Rugby.
I like american football as well.
Blue Warrior wrote:It is a case of aerodynamics. You keep one side of the ball in good condition so that the air flows smoothly round it's surface and the air flow over the rough side drags it in that direction. The batsman will look at how the bowler is holding the ball to see in which direction it will swing. If, however, there are gouges out of the ball on the smooth side, it will help the ball to 'reverse swing'.
I know aerodynamics. Depending on the reyonlods number you can have pretty different characteristics with different speeds and friction on the rough and smooth surface. The trajectory of the ball is decided by the vortexes and flows created behind the ball (in a simple way of describing it).
I dont doubt that you can temper some with the ball but putting down you nail in it shouldnt cahneg it that much. I have seen pitchers in baseball do some pretty amazing thing when they pitch and they dont need to mess around with it.
Unless you have the ball and can show on it that its been temperd you dont have any evidence.