How slinkys climb down stairs?

Slinkys climb down stairs through a combination of gravitational force and the slinky's own elasticity. When a slinky is placed at the top of a staircase, the force of gravity pulls it downward, causing the coils to extend and compress as they descend. As the front end of the slinky drops down a step, the back end follows, creating a wave-like motion that allows it to "walk" down each step. This movement continues until the slinky reaches the bottom of the staircase.