Balls

Universal Medical Systems, a company specializing in medical imaging, recently decided to use their equipment to run CT scans on baseballs. The idea was to compare different baseballs used by Major League Baseball, specifically Mark McGwire's 70th home run ball from the '98 season. The result: the McGwire ball had a larger rubber core and a synthetic rubber ring, which would have given the ball more recoil, allowing it to be hit farther. So whether or not you think the players were juiced, it's pretty clear now that at least the balls were. (I wanted to say, no matter how small their testicles were, at least their balls had some extra bounce)