Advanced Metal Wave Apparatus for Longitudinal and Transverse Motion

This metal wave apparatus demonstrates the fundamentals of both longitudinal and transverse wave motion. A handle is rotated to cause a series of cams to turn, which in turn move a set of 16 vertical rods up and down in a sine wave pattern. Transverse wave motion is visible by observing the tips of the rods as they rise and fall. A scale behind the handle divides the rotary motion into degrees of rotational angle, allowing the relationship or phase between the rotary and vertical motions to be studied. The apparatus provides a tangible, mechanical demonstration of wave behavior comparable to ripples in a water tank or a vibrating guitar string.