Saturday, March 04, 2006

Eyes are fooled by spinning, curving balls

'Don't blame the goalkeeper for failing to block a soccer ball with a spin on it. Likewise in baseball, it's not fair to trash the batter if he misses a curve ball. The human visual system just isn't equipped to track the curved course of a fast-spinning ball, says Cathy Craig, a psychologist at Queen's University Belfast, UK. Craig was inspired to investigate after seeing Roberto Carlos score a mesmerising goal for Brazil in 1997. "Everybody seemed to think it was going wide," she says. "Then it curved in at the last minute..."' More


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