the last one is so badly cropped but it's so funny
59 51337 hours ago
Slinky Treadmill @exploratorium: kinetic motion energy transfers to elastic potential energy and then back to kinetic energy in a cycling process as a slinky spring "walks" down an incline. Put the system on a treadmill, such as this one at the Exploratorium in San Francisco, and the walking behavior can be explored for many minutes. Note that after a while the slinky's walking becomes erratic.🌟 With special thanks to the Exploratorium! ➡ Credit @physicsfun.