The Golden Ratio, aka The Divine Proportion

Logarithmic Spiral--Golden Triangle

Logarithmic Spiral--Golden Rectangle

Logarithmic Spiral--Chambered Nautilus

Spiral Galaxy M100

Spiral Galaxy M31

Vatican Staircase I

Vatican Staircase II

Seashells

Cauliflower

Coneflower

Equiangular Spiral

Fibonacci Numbers and Nature

Art & Physics Artists

Math May Seminar -- Math 300