Slinky

The Slinky, an iconic toy, made its debut in 1945, crafted by naval engineer Richard James. Originally intended as a tension spring to stabilize sensitive instruments on ships, it quickly morphed into a household sensation. This simple yet fascinating device consists of a coil of metal or plastic that can "walk" down stairs, enchantingly transforming motion into a playful spectacle. Its design is ingeniously simple: the Slinky responds to grav...