Longitudinal Wave Demonstrator
Simulates the action of sound waves. Demonstrates propagation,
reflection, interference and a number of other resonant models of
longitudinal waves. Consists of two black, cast iron
side supports, a white cloth background and a spiral spring.
Unassembled. Comes complete with comprehensive activity manual.
No. SF322-WD.
Only $189.95
Flat Coiled Spring
Used for simple wave studies. 3" x 4"
No. SF322-SF.
Only $3.25
Long Spiral
Spring
Closely wound 20mm diameter spring. 3/4" x 72"
No. SF322-SS.
Only $9.95
