Some Nifty Video Clips Illustrating the Physics of Baseball

Video of Tim Wakefield knuckleball.

High-speed video of baseball-bat collision.

Video #1 of bat vibrating after softball-bat collision. The data were taken as part of a swing speed study for men's slow-pitch softball, sponsored by the ASA. The data were taken and analyzed by Professor Lloyd Smith and his team from the Sports Sciences Laboratory at Washington State University.

Video #2 of bat vibrating after a softball-bat collision. The data were taken as part of a swing speed study for women's fast-pitch softball, sponsored jointly by the ASA and NCAA. The data were taken and analyzed by Professor Lloyd Smith and his team from the Sports Sciences Laboratory at Washington State University.

High-speed video of softball-bat collision. In this remarkable video taken at the Sports Sciences Laboratory at Washington State University, the softball with an initial speed of 110 mph impacts a bat which is initially at reat. The ball rebounds from the bat at a speed that is barely discernable. However, the truly remarkable feature of the video is that the softball flattens out when in contact with the bat and remains flattened even after leaving the bat.

Slow-motion video of a skilled slow-pitch softball player swinging the bat. Interesting things to notice: 1. Early in the swing, there is considerable forward movement of the hands, whereas just before contact the hands are barely moving and the bat is essentially rotating about the wrists. 2. The bat slows down significantly just after contact with the ball.

High-speed video of a baseball striking a flat plate at about 120 mph, taken at 30,000 frames/s, from the Baseball Research Center at UMass/Lowell.

High-speed video of a baseball striking a concrete wall at an oblique angle, taken at 2000 frames/s. The ball is incident at an upward angle with backspin. The rebounding ball has reversed spin (also backspin, since the direction has also changed) and bounces almost straight back, normal to the wall. This video is best viewed with Windows Media Player.