Pennsylvania State University
Applied Physics: Model Analysis of an Electric Guitar
Great site explores the physics behind an electrical guitar. Outlines process for conducting an experiment on sound vibrations and provides animated GIF movies showing the first five modes of vibration.
Pennsylvania State University
Applied Physics: Experimental Research on Baseball Bat Vibrations
Fun science site that explores the vibrational behavior of a baseball/softball bat. Contains links to mode splitting in wood bats, controlling vibration, measuring the vibration of a baseball/softball bat and more!