Q1593In 1943 a naval engineer was designing springs to steady instruments on rough seas. One fell off a shelf and walked itself end over end across the floor. His wife found the name in a dictionary: Slinky.
James watched the spring tumble gracefully instead of clattering, and realised he had a toy rather than an instrument mount. Betty James found 'slinky' — meaning sleek and graceful — in a dictionary. The first 400 sold out in ninety minutes at a Philadelphia department store in 1945. Betty went on to run the company for decades after Richard left. Hundreds of millions have been sold, and NASA has taken Slinkys into orbit to demonstrate how springs behave without gravity.





