The seeds of a sunflower, the spines of a cactus, and the bracts of a pinecone all form whirling spiral patterns. Remarkable for their regularity and beauty, these natural structures also show some ...

The open faces of sunflowers expressing warmth and happiness symbolize the sun. The face is actually hundreds, perhaps thousands, of tiny flowers arranged on a solitary inflorescence called a head ...

The golden angle separates the florets of a sunflower. It is an approximation, since three golden arcs add up to slightly more than enough to make a circle. The golden angle separates the florets of a ...

The seeds of a sunflower, the spines of a cactus, and the bracts of a pine cone all grow in whirling spiral patterns. Remarkable for their complexity and beauty, they also show consistent mathematical ...