Robert Howsare’s Drawing Apparatus attaches a Sharpie to records spinning on a record player at different revolutions. We’re fascinated with spirographs around here, and these sorts of cycloid/hypotrochoid–ish-making inventions are no exception! via Kottke. This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content. Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.