when did college baseball switch to aluminum bats
College baseball Though a wood bat is legal in NCAA competition, players overwhelmingly prefer and use a metal bat. The metal bat was implemented in college baseball in 1975.[2] Use of a metal bat is somewhat controversial. Supporters of an aluminum or composite bat note that it can increase offensive performance, as the speed of a ball off a metal bat is generally faster than off a wood bat. Those against metal, and for wood, argue that a metal bat is not safe to use, and that a metal bat doesn't prepare players for the next level, as professional baseball uses a wood bat exclusively. In the 2011 season the NCAA changed the requirements for a metal bat, reducing the maximum allowed exit speed in a way that is said to produce a feeling more like a wood bat.[3] As a result, in 2011 there was a drop-off in overall "long" drives or home runs relative to past years.[4]
Baseball (ball) Throughout the 20th Century, Major League Baseball used two technically identical but differently marked balls. The American League had "Official American League" and the American League's president's signature in blue ink, while National League baseballs had "Official National League" and the National League president's signature in black ink. According to Bob Feller, in the 1930s, when he was a rookie in the National League, baseball laces were black, intertwined with red; the American League's were blue and red.[9] In 2000, Major League Baseball reorganized its structure to eliminate the position of league presidents, and switched to one ball specification for both leagues. Under the current rules, a major league baseball weighs between 5 and 5 1⁄4 ounces (142 and 149 g), and is 9 to 9 1⁄4 inches (229–235 mm) in circumference (2 7⁄8–3 in or 73–76 mm in diameter).[10] There are 108 double stitches on a baseball, or 216 individual stitches.