Longitudinal wave demo with suspended slinky.
What it shows:
Demonstration of longitudinal traveling waves in a spring.
How it works:
The Slinky hangs with a bifilar suspension from a rigid thin-walled electrical conduit frame, which is light, strong and cheap. In total, 23 suspension points run the length of the spring; the cord is a thick cotton thread that attaches to a loop of the Slinky with No.10 fishing swivels. The layout of the Slinky and frame are shown in figure 1, but the thread has been...
Read more about Slinky Wave Cradle