Rainbow spring (originally named Slinky), also known as the "miao miao circle" in Taiwan, is a spiral spring toy and a physical toy. If it is placed on a staircase, it will continuously extend and recover due to gravity and inertia, presenting an interesting "descending steps" state.
2Product Features
Rainbow rings are a type of intellectual toy that, despite their seemingly simple spring-like construction, can exercise the coordination between eyes and hands for people of all ages, from young children as young as 3 years old to the elderly. They can also be transformed into various play methods, exercising creativity. Many enthusiasts hold competitive games in the community, making it a popular and widely spread intellectual toy for all ages.
Rainbow rings were invented and improved by naval engineer Richard James in the early 1940s.
One day in 1943, U.S. Navy engineer Clay Watson and his colleague Richard James were conducting experiments at a shipyard in Philadelphia to study the seismic impact resistance of springs on precision instruments. In the experiment, Richard James accidentally knocked a spring off a shelf and watched it "walk" down the shelf in an arc.
A spring that had fallen to the ground started to 'walk'. So he showed it to his wife Betty and asked if she could extract something from it. He said that with the right steel and the right spring tension, one could make a spring that could 'walk'. They immediately thought of using it to make a toy.
Betty initially had some doubts about the feasibility of the toy, but when the sample entertained a group of children from the neighborhood, she put aside her doubts and looked through the dictionary to find a suitable name for the toy. Then she found the word "Slinky," which in Swedish means "sly, smooth, and curved." Thus, the toy king Slinky was born.
