Clayton Boyer’s Zinnia spring-driven kinetic sculpture is an optical treat as its two 24 inch (61 cm) diameter wheels change speed and direction. Watch as he briefly winds it for a dizzying quick spin demonstration.
On a full wind, it can run quietly for up to 40 minutes, creating a variety of shapes and patterns. Bonus: Boyer sells plans online, which allows makers to design their own wheel displays. Here’s a colorful variation by Bill Miller:
via Boing Boing
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