There's botany in baseball! If you're a fan of baseball, you may know that Major League Baseball has recently begun routine checks of pitchers to enforce its sticky substance rules. Of course, the use of sticky substances helps a pitcher gain a better grip and ultimately better control of the ball. Pitchers can use a rosin bag with a powdered version of the substance, but cannot use a sticky version of rosin according to the current rules.
Rosin, rosin, rosin...what exactly is rosin?
Rosin is an organic substance made from the sap of trees--most commonly pine trees. It can contain other ingredients as well. Rosin is used for other friction-related needs such as playing stringed instruments! (picture: Nationals pitcher Max Scherzer reacts to being checked last week for foreign substances with a glance toward Phillies manager Joe Girardi, who was soon ejected. [MATT SLOCUM/THE ASSOCIATED PRESS])