Topic
optics
2 essays follow this thread across the codex.
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The Spectrum Is a Line. The Wheel Is Us.
Newton’s light runs from red to violet and stops. Painters have always drawn it as a circle. The gap between the two—the purples, the three cones, the quarrel with Goethe, the thin science of colour and mood—is where colour theory actually lives, and a painter who has checked the physics uses the wheel better for knowing which part of it is physics.
Art · September 2026 · 18 min -
The Same Law, Written Twice
In a notebook around 1513, Leonardo writes down a rule about how a tree divides. In the next sentence he writes the same rule about a river. He is not noticing two things—he is stating one law twice, and that habit is the key to why his drawing and his science were never separate activities.
Art · August 2026 · 19 min- leonardo
- anatomy
- optics
- fluid dynamics
- renaissance