Multimedia Files associated with this article:
video clip showing the first three bending modes of a baseball bat
video clip showing high-speed video bats vibrating after collision with ball
video clip showing the “hoop mode” vibration in a hollow softball or baseball bat.
video clip of the author playing “Take Me Out to the Ball Game” on a selection of bats with barrel hoop frequencies matching those of a musical scale
video clip showing an animation of the cylinder modes in Figure 6
WAV file of the sound of a baseball impacting a wood baseball bat
WAV file of the sound of a baseball impacting a metal (aluminum) baseball bat