Interesting to me, anyway

To the baseball fans out there: You know that 100 mph is the top speed a pitcher can reach with his throws. (The Tigers are fortunate enough to have one guy who can reach that level, Kyle Farnsworth.) But why hasn't that speed ever been surpassed? Sprinters run faster, weightlifters press more weight, etc. Is 100 mph as fast as the human arm can throw a baseball? The short answer is yes, apparently. There's only so much torque a human body can generate before muscles rip away from bones and tendons snap. This article at Slate has a longer, more detailed explanation.