Golden Angle
The golden angle is about 137.508°. When each new point turns by this angle, points avoid lining up into obvious spokes, producing efficient natural packing.
Spiral Algorithm Lab
Explore golden angles, Fibonacci growth, sunflower seeds, and generative spirals.
What this demonstrates
Fibonacci Growth
Fibonacci spirals approximate growth by expanding through squares whose side lengths follow 1, 1, 2, 3, 5, 8, 13… The ratio approaches φ.
Sunflowers
Seed heads often show visible spiral families in Fibonacci counts. The pattern emerges from local growth rules, not from drawing literal Fibonacci numbers.