We aren't 'football' experts, but even we notice that the flight path of the Adidas Jabulani ball, the official ball of the 2010 FIFA World Cup, is unpredictable to say the least. Nearly every kick seems to send the ball knuckling, slicing or hooking past the goal. Apparently, there's a scientific reason for its awkward trajectory. According to The Mirror, aerodynamics experts at NASA claim that the lightweight, 440-gram ball moves in unpredictable ways when it reaches speeds above 44 mph.
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