Description

This 6-foot-long spring stretches to over 30 feet! Perfect for modeling standing and moving transverse waves as well as moving sound waves. Demonstrate the relationship between wavelength and frequency in a way your students will never forget. You can even stretch the spring through a large slit in a piece of cardboard to demonstrate how a polarizing filter works. These gigantic springs are difficult to find and have myriad uses in the classroom and laboratory. 3/4" diameter.