Baseball's Speed Limit?

     Watching baseball games, you get to wondering: Why do baseball pitchers seem to have speed limit around 97mph or so? Runners run faster every year, jumpers jump higher, Olympic records are made to be broken. Why not pitchers?
     According to experts in biomechanics, that 100-mph baseball speed limit isn't an illusion—it's a basic property of human physiology. You would think that building up the muscles in the legs, upper body, arm, and shoulder could generate more force and make a pitcher's arm move faster. Not so. There's a point when more torque doesn't yield a faster pitch.
     For more about this oddity of sports, see the article at Slate.com: http://www.slate.com/articles/sports/sports_nut/2005/04/pitcher_perfect.html