When a British engineer named Denys Fisher introduced the first Spirograph set at a toy fair in 1965, he tapped into a demographic of non-artists who really wanted to create art. Those sprocketed ...

What is spirograph: A geometric drawing device that creates intricate patterns using gears, developed by Denys Fisher in 1965 and now a Hasbro trademark. Why it matters: Spirographs teach geometry, ...

Spirograph, the strangely soothing mathematical drawing toy, has an online counterpart where you can doodle whirls and curves to your heart’s content. Remember Spirograph? The toy set that came with ...