Baseball
Special mud rubbed on all MLB baseballs has unique, ‘magical’ properties, study finds
2024-11-04
For over 80 years, a secret mud has been the unsung hero of Major League Baseball, ensuring every ball has the perfect grip. This natural substance, known as Lena Blackburne Baseball Rubbing Mud, has been meticulously applied to every baseball before every game, but its scientific secrets have remained elusive - until now.
Uncovering the Mysteries of the Magical Mud
The Mud's Miraculous Origins
The story of this remarkable mud dates back to the 1930s, when a tragic incident on the baseball field sparked the search for a solution. In 1920, New York Yankees pitcher Carl Mays struck Cleveland shortstop Ray Chapman in the head with a pitch, resulting in Chapman's tragic death. This devastating event raised concerns about the dangers of wild pitches and the risk of fresh, shiny baseballs slipping from pitchers' hands. In response, the National League president mandated that umpires begin "soiling" the balls to improve grip.However, finding the right substance proved challenging. "They tried to use infield dirt. That scratched the leather too much. They tried using shoe polish and tobacco spit; those things darkened the ball too much," explains Jim Bintliff, the current owner of the Lena Blackburne Rubbing Mud company.It wasn't until 1938 that Lena Blackburne, a third-base coach for the Philadelphia Athletics, remembered a fine, filtered mud from his childhood in New Jersey. Blackburne went back to the source, collected the mud, and began applying it to baseballs. The mud's unique properties made it an instant hit, and Blackburne soon turned it into a thriving business.The Science Behind the Mud's Magic
For decades, the secret behind the mud's effectiveness remained a mystery, until a team of researchers at the University of Pennsylvania decided to investigate. Led by geophysicist Doug Jerolmack, the team conducted a series of rigorous tests to uncover the science behind the mud's remarkable properties.The researchers found that the mud's perfect balance of sticky clay and abrasive sand particles is the key to its success. The sand particles act like tiny "barnacles," enhancing the ball's friction and grip, while the clay-like consistency allows the mud to spread evenly and thinly, without damaging the leather or laces."It spreads like face cream, but it grips like sandpaper. It has this magical ability," Jerolmack marveled. The team's findings, published in the Proceedings of the National Academy of Sciences, provide the first scientific evidence that the mud's power is more than just a myth.The Mud's Enduring Legacy
Today, the Lena Blackburne Rubbing Mud remains an indispensable part of Major League Baseball. MLB mandates that at least 156 balls be prepared for every game, each receiving a 30-second rub with the mud within a three-hour period. The mud is so essential that teams even purchase additional containers for their farm systems.Despite attempts to replace the mud with synthetic alternatives, the researchers concluded that any such efforts would be futile. "It is a very special combination of ingredients that nature makes that make it work," Jerolmack said. The mud's unique properties, shaped by centuries of natural processes, simply cannot be replicated.As the game of baseball continues to evolve, the Lena Blackburne Rubbing Mud remains a steadfast and irreplaceable part of the sport's rich tradition. From the major leagues to the little leagues, this unassuming mud has become an integral part of the game, ensuring that every ball has the perfect grip for players to showcase their skills and thrill the crowds.