In 1943, an engineer named Richard James was trying to design a new tension spring to hold electronic gear secure on a ... into a two-inch spring: the Slinky. He and his wife, Betty James, took ...

Originally intended as a way to stabilize sensitive instruments on ships during World War II, the Slinky is quite simply ... will work with whatever kind of gear you might be using at these ...

This print has no interlayer adhesion. It’s a 3D printed Slinky, the kind that rolls down stairs, alone or in pairs, and makes a slinkity sound. Conventional wisdom says you can’t print a ...