I've just been watching the show "The Great British Weather" in which Freddie Flintoff the cricketer explained how cricketers believe that it is easier for bowlers to swing the ball when the weather is overcast, though there is no scientific evidence for this.

Is there any evidence from pitchers in baseball for a similar effect? The cricket swing occurs in the air, before the bounce, so would be similar to a baseball delivery. I remember an article in Scientific American about curve balls, but can't remember the weather beig cited.

Penny